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Strategic cooperation reached Recently, Minjie Eco-Machinery Technology Co., Ltd. and Hong Kong Partners Limited formally signed a strategic cooperation agreement. Both parties will complete the equity restructuring to become Hong Kong-controlled through cash injection and share swap, thereby accelerating Minjie's international strategic layout through Hong Kong's international market and jointly developing the global molded fiber market. This cooperation is not only a deep capital-level binding but also a comprehensive synergy in technology, resources, and markets, marking that both parties have entered a new stage in the field of eco-friendly packaging intelligent manufacturing.   Minjie and Partners will carry out in-depth cooperation in high-end intelligent molded fiber equipment, molds, product research and development, and smart factory solutions. Minjie will rely on Partners's strong capital, intelligent manufacturing, and global channel advantages to further enhance its technological research and development capabilities and market competitiveness. Partners Limited will also leverage Minjie's leading technology in the molded fiber field to improve its green industrial chain layout and jointly promote the intelligent upgrading of the eco-friendly packaging industry.   Currently, the global wave of "plastic bans" continues to intensify. As a core alternative solution for biodegradable packaging, the market demand for pulp molded fiber has shown explosive growth. This cooperation not only creates a new growth engine for both companies but also sets a model of innovative cooperation of "technology + capital + globalization" for the industry. It will further empower the global advancement of "Intelligent Manufacturing from China."   △On June 14, 2025, Mr. Joe, the representative of Partners Limited, and Mr. Gee, Chairman of the Board of Minjie signed the strategic cooperation agreement, officially launching the comprehensive cooperation.   Minjie Eco-Machinery Technology Co., Ltd. was established in 2021. With a core team boasting 20 years of industry experience, it focuses on the research and development, manufacturing, and promotion of overall solutions for intelligent pulp molded fiber production lines, adhering to the philosophy of "Intelligent Manufacturing Processing Excellence" As a national high-tech enterprise with multiple core patents, the company continues to promote the efficient development of the molded fiber industry through automated and intelligent technological innovations, providing professional solutions for the upgrading of the global eco-friendly packaging industry. Partners Limited is a family-owned company specializing in investments in high-tech fields such as intelligent manufacturing and environmental technology. The company is committed to providing intelligent production solutions, green environmental protection technologies, and efficient factory management systems for the manufacturing industry, helping enterprises achieve digital transformation and sustainable development.  △Molded Fiber Package Project Turnkey Solution

At CES 2025, Lenovo announced its plan to introduce molded bamboo pulp packaging for its MOTO Razr50d foldable smartphone, following in the footsteps of Sony, Samsung, and Apple. Additionally, the company aims to achieve 100% molded pulp packaging for its laptops, marking a significant step toward sustainable practices.     Key Drivers Behind This Shift:   1. Environmental Policy Influence:    With global plastic regulations growing increasingly stringent, Lenovo’s ESG report highlights a strong commitment to eco-friendly packaging, emphasizing the use of recyclable and sustainable materials as a core strategy.     2. Technical Benefits:    Molded pulp packaging offers superior cushioning performance, high recyclability, and declining costs due to economies of scale, making it a practical alternative to traditional materials.     3. Brand Value Enhancement:      Sustainable packaging not only strengthens corporate reputation but also appeals to environmentally conscious consumers, boosting market competitiveness.     Future Outlook:   Industry-wide collaboration and advancements in production processes will be crucial for the 3C electronics sector to fully transit to eco-friendly molded pulp packaging.    

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Here we officially come back to work in 2024 Chinese Lunar Year.   Best wishes to all supportive supply partners, all cooperative customers, and all potential clients who have been paying attention Minjie Eco-Machinery.   One chance to Minjie regaring molded fiber food packagings or pulp molding egg pakcagings, protective packagings, and you'll receive attentive and professional service.

The packaging industry is witnessing a transformative shift towards sustainable and eco-friendly solutions, with pulp molding emerging as a frontrunner. This industry update explores the latest advancements in pulp molding industrial package equipment and specialized equipment for egg cartons and trays, showcasing how this innovative technology is reshaping the landscape of packaging. Pulp Molding Industrial Package Equipment: Pulp molding, also known as molded pulp or molded fiber, involves the use of recycled paper or cardboard to create packaging materials through a molding process. This technique is gaining traction in the industrial packaging sector as a cost-effective and environmentally friendly alternative to traditional packaging materials. The equipment used in pulp molding industrial package production has evolved to accommodate various shapes and sizes, providing versatility for packaging solutions across industries. From electronic components to fragile goods, pulp molding industrial package equipment offers a customizable and sustainable option that aligns with the increasing demand for eco-conscious packaging. Manufacturers are incorporating automation and precision engineering into pulp molding equipment to enhance production efficiency and reduce waste. The use of water-based processes further adds to the eco-friendly profile of pulp molding, making it a compelling choice for businesses looking to minimize their environmental footprint. Pulp Molding Egg Carton Equipment: Pulp molding technology has found a particularly impactful application in the production of egg cartons. The demand for sustainable packaging in the poultry industry has driven the adoption of pulp molding egg carton equipment. These machines are designed to create sturdy and protective packaging for eggs while utilizing recycled materials. One of the key advantages of pulp molding egg carton equipment is its ability to produce consistent, high-quality cartons with minimal material waste. The customizable molds allow for the production of cartons that cater to different egg sizes, ensuring a secure fit and protection during transportation. The lightweight nature of pulp molding egg cartons not only reduces shipping costs but also contributes to overall sustainability by minimizing the use of resources. As consumers increasingly prioritize eco-friendly options, pulp molding egg carton equipment stands out as an innovative solution for the poultry and egg packaging industry. Pulp Molding Egg Tray Equipment: Similar to egg cartons, pulp molding egg tray equipment focuses on the production of protective trays for eggs during storage and transportation. These trays are designed to cradle individual eggs securely, preventing breakage and ensuring freshness. The modular and efficient design of pulp molding egg tray equipment allows for high-volume production, making it suitable for both small-scale and large-scale egg producers. The use of recycled materials in the molding process aligns with the broader industry trend toward sustainability and circular economy practices. Future Trends: The future of pulp molding equipment is expected to witness further refinement and innovation, with a focus on automation, customization, and sustainable material options. As regulations and consumer preferences continue to drive the demand for eco-friendly packaging, pulp molding is likely to play an increasingly integral role in the packaging industry. Conclusion: Pulp molding industrial package equipment, along with specialized equipment for egg cartons and trays, represents a significant stride towards sustainable packaging solutions. The combination of recycled materials, efficient production processes, and versatile applications positions pulp molding as a key player in the ongoing transformation of the packaging industry. As businesses embrace environmentally friendly practices, pulp molding equipment stands out as a viable and impactful choice for a diverse range of packaging needs.

In the pursuit of eco-friendly and sustainable packaging solutions, the focus has shifted to the innovations brought forth by Disposable Round Plate Production Lines, Disposable Clamshell Production Lines, Disposable Cup Lid Production Lines, and Disposable Food Tray Production Lines. This industry update explores the transformative impact of these production lines on the manufacturing landscape, providing key insights into the rising demand for environmentally conscious disposable packaging. Disposable Round Plate Production Line: The Disposable Round Plate Production Line stands as a beacon of sustainable tableware manufacturing. Utilizing recyclable materials and advanced molding technologies, these production lines cater to the growing demand for disposable yet eco-friendly plates. With an emphasis on efficiency and precision, manufacturers can now produce a multitude of biodegradable round plates that align with both business objectives and environmental stewardship. Disposable Clamshell Production Line: As consumer preferences shift towards eco-conscious packaging, the Disposable Clamshell Production Line plays a pivotal role in providing sustainable alternatives for takeout and food delivery. These production lines transform recycled materials into biodegradable clamshells, meeting the demand for environmentally friendly to-go containers. With customizable designs and streamlined manufacturing processes, these production lines offer a comprehensive solution for businesses committed to reducing single-use plastic waste. Disposable Cup Lid Production Line: The Disposable Cup Lid Production Line addresses the challenge of replacing traditional plastic lids with sustainable alternatives. By harnessing innovative materials and molding techniques, these production lines produce disposable cup lids that are both functional and environmentally responsible. From hot beverage lids to cold drink covers, this technology enables the mass production of lids that align with the global movement toward reducing plastic pollution. Disposable Food Tray Production Line: In the realm of sustainable food packaging, the Disposable Food Tray Production Line stands out as a catalyst for change. This production line transforms recycled fibers into disposable food trays, offering a green alternative for packaging various culinary delights. The versatility and efficiency of these production lines cater to the diverse needs of the food industry, providing an eco-friendly solution for serving and packaging food items. Comparative Analysis: When considering Disposable Round Plate, Clamshell, Cup Lid, and Food Tray Production Lines, the common thread is a commitment to sustainability and eco-conscious manufacturing. Each production line addresses specific challenges in the disposable packaging industry by utilizing recycled materials, minimizing waste, and offering customizable solutions. Together, they contribute to a significant shift toward greener alternatives in the packaging sector. Future Trends: The future of disposable packaging production lines may see advancements in automation, the integration of smart technologies for process optimization, and the exploration of novel biodegradable materials. As the demand for sustainable solutions continues to rise, manufacturers may focus on enhancing production efficiency while further reducing the environmental impact of disposable packaging. Conclusion: In conclusion, Disposable Round Plate, Clamshell, Cup Lid, and Food Tray Production Lines are at the forefront of a sustainable packaging revolution. These production lines not only provide businesses with eco-friendly alternatives but also respond to the increasing consumer demand for greener disposable options. As the industry continues to evolve, the collaboration between technology and sustainability ensures that disposable packaging production lines play a crucial role in shaping a more environmentally conscious future.

According to China News Service, Beijing, October 14,the China State Post Bureau's regular press conference in the fourth quarter of 2022 released that China's express packaging green governance has achieved initial results, and the next steps include ensuring that by the end of 2025, postal express outlets nationwide will ban the use of non-degradable plastic packaging bags, plastic tapes, and disposable plastic woven bags. In 2022, the State Post Bureau will vigorously implement the "9917" project, making it clear that by the end of this year, the proportion of purchasing and using packaging materials that meet the standards will reach 90%, the proportion of standardized packaging operations will reach 90%, and the number of recyclable express boxes will reach 10 million. 700 million corrugated boxes were recycled and reused. Guan Aiguang, deputy director of the Market Supervision Department of the State Post Bureau, said that through the joint efforts of the whole system and the entire industry, the awareness of green development in the industry has gradually increased, and the green governance of express packaging has achieved initial results, and the level of reduction, standardization and recycling of express packaging has been steady. The "9917" project is progressing successfully. As of the end of September, the proportion of the whole industry in purchasing and using packaging materials that meet the standards and standard packaging operations both reached 90%, a total of 9.78 million recyclable express boxes have been put in, and 122,000 recycling devices have been set up at postal express delivery outlets. 640 million corrugated boxes were recycled and reused, and preliminary results were achieved in the green management of express packaging. In the next step, the State Post Bureau will also steadily promote the large-scale application of recyclable express packaging to promote packaging recycling and reuse, and encourage delivery companies to increase the recycling and reuse rate of express packaging by setting up functional modules in their APPs and introducing incentive measures, strengthen supervision and management and administrative law enforcement, etc. Edited and Translated by Minjie.

According to a report from Hong Kong Takung Wenhui.com, the Hong Kong SAR Government plans to ban restaurants from providing single-use plastic food packaging in advance, implemented no later than the fourth quarter, 2023, which means, compared with the originally proposed year of 2025, it will be brought forward by around one and a half year. The measures will be implemented in two phases, that is, 1stphase: restaurants will be prohibited from providing foam plastic tableware, plastic stirring rods, plastic drinking straws, plastic forks, plastic knives, plastic spoons and plates, etc. Due to the limited supply of plastic cup substitutes in the market, the SAR government will first prohibit restaurants from providing plastic cups to dine-in customers in the first stage 2ndphase: to ban them from providing dine-in and takeaway customers from 2025. *Violators are liable to a fixed fine of HK$2,000. Prepackaged food or beverages, such as plastic drinking straws that come with paper-packed drink boxes, are not covered by the measure. Disposable plastic straws for medical needs are exempt, as are those for medical or security needs, such as in hospital wards and correctional facilities. In addition, the SAR government will also decide on the timetable for banning the sale of plastic tablecloths, non-medical transparent gloves, plastic earplugs and other products depending on the implementation of the first phase.  

According to reports, recently, Jinshan District Market Supervision Bureau, Shanghai conducted a thorough inspection within its jurisdiction on enterprises and stores that may produce, sell, or use disposable foam plastic tableware. No illegal production of disposable foam plastic tableware was found, but 3 illegal sales of disposable foam plastic tableware were found, and thousands of disposable foam plastic tableware were seized. Penalties will be imposed on relevant enterprises and stores.   Disposable foam plastic tableware belongs to the third category of elimination products, and the production and sales were prohibited from December 31, 2020. This kind of foam tableware will not only cause serious pollution to the environment, but also can easily cause harm to the human body because of its inability to withstand high temperature, and there is a great potential safety hazard.   Most of the sales units of disposable foam plastic tableware are small shops, which are highly concealed. The Jinshan District Market Supervision Bureau starts from the troubleshoot of the use of catering, traces the source upstream, locks the sales, and makes the illegal sellers have nowhere to hide, so as to achieve precise strikes.

Recently, the German Federal Government issued a decree to establish a single-use plastics (SUP: single-use plastics) fund, which aims to require manufacturers of single-use plastic products to strive to contribute to the removal of waste in parks, streets and other areas.   The decree will come into effect in 2025. At that time, manufacturers of disposable plastic products will pay a certain fee to the management fund of the German Federal Environment Agency every year. The fund will take in 450 million euros in its first year based on the total number of single-use plastic products produced by each producer, including plastic-filtered cigarette products, drinks containers, cups, takeaway food containers and more.   In this regard, the German Food and Drink Federation believes that beverage containers should be exempted because the effective deposit system in Germany has greatly reduced the risk of bottles from being discarded. The SUP Fund Act now shall be passed bythe Bundestag and Bundesrat, and the relevant legal provisions and tax rates are also being drafted by the BMUV.

Fully Automatic Inside-Between Transfer Fine-art Package Molder Solution of Wet Pressing Process for Vegetable Fiber Molding The fully automatic internal rotary wet press for fine paper products is a flip forming wet press with extrusion function, double station drying and hot pressing, and line cutting edge. It also has high-end catering appliances with relatively complex structure and sealing requirements, while the production requirements are relatively simple and generic tableware. Minjie Eco-Machinery Technology Co., Ltd. (short as [Minjie"), is one company with workshops for molded fiber machinery and mold, with company philosophy: [Innovation, Technology, Dedication, Harmony", specialized in molded fiber solutions, targeting to provide one-stop molded fiber solutions.Such as Molded Fiber Machinery,Molded Fiber Mold,Molded Fiber Finished Products. Minjie has its location in Jiangmen, Guangdong, China's Heavy Industry Machinery Manufacturing Industrial Center, with its predecessor's location in Foshan. Minjie has an area of 8000㎡, covering functional modules of raw material preparation, welding, machinery processing, assembly, mold manufacturing, electrical installation and commissioning, with more than 70 staff, covering technical R&D, mold design, engineering installation and commissioning, manufacturing, customer service and marketing, including 65% of whom for technical items and core technical staff with more than 20 years of molded fiber work experience. Currently, Minjie is equipped with various patents, covering National Invention, Utility Model and Software Copyrights. Minjie has kept and always will be exploring and innovating, dedicated to stepping towards higher automation, lower energy and more superior efficiency. To make the skyer bluer.

Molded fiber product mold (plant fiber mold) products are a kind of three -dimensional paper category that uses unique craftsmanship and specialized auxiliary to suppress forming on the styling dedicated network mold with unique craftsmanship and special assistant. Products, through changes in mold shapes, can produce a variety of structured paper packaging products or paper items. Pulp molding products, also known as paper molds or trustees, are mainly used in the transportation buffer packaging of eggs, fresh fruits and small electronic products, and can also be made into medical utensils, seedling pots, etc. The production process of pulp mold (plant fiber mold) product is shown in Figure 1. In the entire production process of plasma mold (plant fiber mold) products, an essential tool is the mold. Pool mold molding (plant fiber mold) products are different in different processes. There are mainly three types of slurry molding molds, thermal pressure integer molds and positioning cut cutting mold molds. The latter two molds should be dependent on the requirements of pile slurry molding products, but the slurry molding mold is an indispensable mold for making pulper mold (plant fiber mold) products. Plasm mold (plant fiber mold) product design main point Pool molding (plant fiber mold) product design includes structural design and mold design. This is an important link before the production of pulp molding products, especially when making industrial products buffer packaging, which is even more important. Although the pulp mold (plant fiber mold) products and foam foam products can be used for the buffer packaging of the product, the buffer mechanism of the two is different. The buffer performance of foaming products mainly relies on the large elastic coefficient of the foam material itself, and the flexible coefficient of the plasma mold (plant fiber mold) products is small. The purpose of buffering protection, so its buffer performance depends largely on its own reasonable structure. Therefore, the basic requirement of the design of the pulp mold (plant fiber mold) product structure is that under the premise of ensuring that its molding process can be successfully carried out, it has a high overall intensity and good buffer performance. At present, the structure design of the plasma mold (plant fiber mold) products does not have much theory, mainly depending on the designer's experience, or some simulation through finite element software.

The characteristics of the Molded Fiber Product Mold process play a specific role in different fields, so its industry applications are widely used. Plasm molding application field: Plant fiber can degrade the pulp lunch box at one time The food packaging container mainly refers to the packaging container that is used as the main food. Most of the raw materials are wheat straw, sugar cane residue, bamboo, straw, reed, cotton straw, plant Fujiman and other plant fibers. The heating of the machine, the production process does not add the addition of harmful chemicals, the product has frozen refrigeration, baking heating, waterproof and oil-proof, 45-90 days can completely degrade the characteristics of composting. There are many types of slurry molding tableware products, including disposable pulp lunch boxes, disposable meal dishes, disposable meal bowls, takeaway packing boxes, can be decomposed by knives and spoons. The production process of Molded Fiber Tableware Machine is mostly wet pressure. The products are smooth, delicate, and neat, and sanitary standards can meet the food grade requirements. Tea packaging, all kinds of fresh fruit fresh meat fresh pallets, etc. This kind of food packaging container can perform surface water -based ink prints or laser printing on the surface. A set of sets can be formed by assembly, which not only protects the packaging products, but also plays a role in promoting environmental protection and conventional packaging. It is actually in practice. The use of paper plastic packaging as emerging products can easily attract consumers' attention and favor, and it is also a means of marketing to promote sales. Molded Fiber Finished Product can realize the lunch box logo customization. When the mold is opened, it is printed on the mold to meet the aesthetics and brand needs of the product. Of course, you can also customize the card waist seal to enrich the diversity of products.

Molded Fiber Mold pressure suppression process (1) Molded Fiber Machinery Installation and molding Add the molding process required to add the product to the mold is called the installation. Modeling should follow the following principles: the shortest distance of the material; the laying of the material should be uniform; for the narrow runways and dead ends, the materials should be pre -made. (2) Moving temperature system The mold pressure system mainly includes the choice of molding temperature, heating rate, molding temperature and insulation time. (A) Model installation temperature Modern temperature refers to the temperature of the mold when putting the material into the mold cavity. It mainly depends on the quality indicators of the material and the quality of the mold. Generally speaking, the volatilization content of the mold is high, and when the content of insoluble resin is low, the molding temperature is low. Conversely, it is necessary to appropriately increase the temperature of the module. The complicated structure and large product installation temperature should generally be within the range of the room temperature ~ 90 ° C. (B) The temperature increase rate Refers to the heating rate from the temperature to the maximum pressure temperature. For the fast mold pressure process, the molding temperature is the suppression temperature, and there is no problem of heating rate. The Molded Fiber Tableware Machine slow mold pressure process should choose the appropriate temperature increase rate according to the type of molding resin and the thickness of the product. (C) molding temperature The resin will release or absorb a certain amount of heat during the curing process. It can determine the degree of resin concentration response according to the extension, so as to provide a basis for determining the molding temperature. In general, first determine a relatively large temperature range, and then select a reasonable molding temperature through the process -performance test. The molding temperature has a lot to do with the variety of molding materials. The molding temperature is too high, the resin response speed is too fast, the fluidity of the material is reduced too fast, and the early local curing occurs, which cannot be full. If the temperature is too low, and the insufficient thermal insulation time of the product, there will be defects such as incomplete curing. (D) Insulation time Refers to the time to heat up at the molding pressure and molding temperature. The length of the insulation time depends on the variety of the mold, the height of the molding temperature, and the structural size and performance of the product. (E)Cooling In slow molding, after the heat preservation is over, it should be gradually cooled under a certain pressure. When the mold temperature drops below 60 ° C, the molding operation can be performed. There are two types of cooling methods: natural cooling and mandatory cooling. The fast suppression process can not be used in cooling operations. After the thermal insulation is over, it can be removed at the molding temperature and removed the product.

Modeling pulp (also known as mold fiber) has been used to make containers, trays and other packaging since the 1930s. Purch can be produced by recycled materials or directly produced by trees and other plant fibers. Modeling is widely used in electronic products, home supplies, automotive parts and medical products. The mold is made by processing metal tools into the shape of the finished parts (if you want). Drilling the holes through the tool, and then attach the screen to its surface. Vacuum via the holes, while the screens prevent the pores from blocking the pulp. In order to manufacture fibrous parts, immerse the mold into the fiber slurry and apply the pressure gradient, and pump water through the holes in the mold. The fiber from the slurry is collected on the screen, and after the fiber layer is formed to the expected thickness, the mold with a fiber part is removed from the slurry. The fiber parts are then separated from the mold and can be processed (e.g., formed, heating, drying, top coating, etc.). Modern fiber packaging products can be biodegradable and compostable. However, currently known fiber technology is not suitable for food packaging that foods can contact with packaging, especially meat and poultry containers, prefabricated foods, agricultural products, microwave food containers, and lids and cups for beverage containers. Molded Fiber Product Production Line Includes: 1. For molding station, it includes: slurry tank, which is configured as a fiber slurry including liquid and multiple fibers; molding molds include a mold board that limits multiple vacuum channels; The position of the mold board relative to the slurry can; 2. parts transfer system, including: parts transfer characteristics, limited to multiple parts vacuum channels; and transmission institutions, which are used to move parts transfer characteristics from the first position of the formation of molding molds to the second position; 3. Suppressing the station, including: core mold; cavity mold, compatible with core molds; and suppressing the implementation system, which is used to adjust the position of the core mold relative to the cavity mold, of which at least one in the core mold and cavity mold Limited multiple vacuum channels and at least one heating component, and in the second position, the parts transfer characteristics are at least one junction in the core mold and cavity mold; 4. As well as removing the system, it includes: removing the characteristics, and its limited number of multiple parts vacuum channels and multiple trimming materials (TRIM) vacuum channels; and the transmission institution, which is used to at least at least from the core mold and cavity mold from the core mold and cavity mold. The third position of a joint moves to the fourth position.

With the implementation of the plastic restrictions on various countries, more and more enterprises have transformed the production of plant straw fiber tableware. At the same time, some universities, institutions, equipment factories, etc. have also invested in innovative technology research and development, making the development of the industry enter a one The golden period of rapid development. (1) Molded Fiber Finished Products Is Thin The thickness of the general product in the production process of plant straw fiber tableware is about 0.7-0.8mm. Sometimes the requirements for use or customers often reduce the thickness of the product to 0.5-0.6mm. Net transfer is easy to crack the product due to the action of the network or the deformation of the network. (2) The design of the mold itself The mold gap is small. The smaller gaps mentioned here are mainly for setting thermal pressure molds. If the production party does not tell the thickness of the product factory when opening the mold, the mold factory often performs the calculation of the expansion coefficient and the gap of the gap according to the conventional thickness of the product. Reserved, however, in the actual production process, if the thickness of the product exceeds the design gap or exceeds the gap of the mold at the design temperature, it will cause the product to crack, and even some products will "blew up". The molding mold is not matched with the molded mold. Whether it is depth, length, and width of the mold molding mold, it is often greater than the molded molds, especially for some products with deeper depth and smaller slope. Creation of wet embryo, if the secondary supercharged, the product and the metal network are more likely to be cracking by pressure.

During the setting heat pressure process, the cause of Molded Fiber Finished tableware cracking (1) High moisture content For tableware with alien cavity structure, it is easy to cause the product's wet embryo to crack due to the content of water. During the molding wet embryo process, the product uses a vacuum adsorption to draw excess water. The water content is generally controlled at about 60-65%during the process of smoking. If the water content is too high, whether it is manual transfer or a robotic arm suction in the formation of the wet embryo transfer process, it will reduce the combination of fiber, and it is easy to be easy Causes the product! Conversely, the lower the moisture, the stronger the binding force of plant fibers, and the less likely it is to crack. The cause of high water is divided into: first, the vacuum pumping time is too short; second, the molding seal is not tight, there is a vacuum problem; third, the plant fiber used in the use of poor water filtration; fourth, the real vacuum is too too much, the vacuum is too much too much, the real vacuum is too, too the vacuum is too much. Low, the general vacuum is preferably about -0.05-0.06MPa. (2) The temperature of the heat source is too high At present, most factories use thermal conductivity as a medium heating and heating plate and then heating molds. The heat conductive oil is used as a closed liquid heating medium and the temperature difference is small. In the temperature, the oil port temperature during the design and use of thermal oil is generally designed according to 260-280 degrees, which will be defined accordingly. It will also cause product cracking, so the temperature of temperature and the flow of thermal oil are directly related to the product's cracking.