How should the materials for mask bags, hardware bags, food bags, and clothing bags be selected? Shunxingyuan suggests this for you

In today's society, the market is developing rapidly, and the types of materials used in plastic packaging bags are also increasing. Currently, modern packaging bag materials mainly include plastics, paper, and composite materials (various types of multi-layer composite materials such as plastic/plastic, plastic/paper, plastic/aluminum, foil/paper/plastic, etc.). Today, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will mainly explain composite materials and plastic packaging.

Shunxingyuan Packaging Bag Collection

　1. Composite Materials

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Composite materials are divided into surface materials and inner materials. The surface materials should preferably be selected for their good heat resistance and small thermal deformation, such as BOPA, BOPET, BOPP, and paper. The inner material is a heat-sealing material, preferably with a heat-sealing temperature 30 degrees Celsius lower than the surface material. When selecting the surface material and heat-sealing layer material, materials with a large difference in heat deformation temperature should be chosen, otherwise it will make it difficult to control the bag-making temperature. Currently, composite materials are the most numerous and widely used type of flexible packaging materials. There are currently more than 30 types of plastics used in packaging bags, and there are hundreds of multi-layer composite materials containing plastics. Composite materials generally use 2-6 layers, but special needs can reach 10 layers or even more. By scientifically and reasonably combining or laminating plastic, paper or paperboard, and aluminum foil base materials, almost all the requirements of various products for packaging bags can be met. For example, the shelf life of Tetra Pak milk made of multi-layer materials such as plastic/paperboard/aluminum plastic/plastic can be as long as half a year to a year. Some high-barrier flexible packaging canned meat can have a shelf life of up to 3 years, and some developed countries' composite material packaged cakes can have a shelf life of more than one year, and after one year, the nutrition, color, aroma, taste, shape, and microbial content of the cake still meet the requirements. When choosing composite material packaging, special attention should be paid to the selection of each layer of base material. The combination must be scientific and reasonable, and the comprehensive performance of each layer combination must meet the comprehensive requirements of the product for the packaging bag.

 2. Plastics

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In China, there are also more than 15 or 6 types of plastics used for packaging bags, such as PE, PP, PS, PET, PA, PVDC, EVA, PVA, EVOH, PVC, ionic resin, etc. Among them, PVA, EVOH, PVDC, PET, and PA have high oxygen barrier properties; PVDC, PP, and PE have high moisture barrier properties; PS aromatic nylon is resistant to radiation irradiation; PE, EVA, POET, and PA are resistant to low temperatures; ionic resins, PA, and PET have good oil resistance and mechanical properties; PET and PA are both resistant to high-temperature sterilization and low temperatures. The monomer molecular structure, degree of polymerization, types and quantities of additives of various plastics are different, and their properties are also different. Even the same type of plastic with different grades will have different properties. Therefore, suitable plastics or combinations of plastics and other materials must be selected according to the requirements. Improper selection may lead to a decline in product quality or even loss of value.

Hardware Bag Hot Sale Collection

The above is an explanation of the more commonly used composite materials and plastics in packaging bag materials. We hope it can help customers who need custom packaging. Plastic packaging bags have provided great convenience to our lives. In addition to food, they are also widely used in clothing, such as clothing bags and mask bags.

Mask Bag Hot Sale Collection

Shunxingyuan's Cooperative Clients

Dongguan Shunxingyuan Packaging Products Co., Ltd. has focused on the flexible packaging industry for 19 years. Our products are widely used in clothing and apparel, food, chemicals, home gifts, hardware and electronics industries. We have advanced production equipment and rich experience in packaging bag production. Our production range covers the entire process from plastic bag design, plate making and printing, to raw material compounding, cutting and packaging. Our customers are located in many countries around the world. ADIDAS, AAPE, IZZUE, IT, and BRAINERD are some of our well-known cooperative brands. The company mainly produces bone-fitting zipper bags, hook bags, button bags, adhesive bags, frosted bags, flat bags, center-seal bags, three-side seal bags, eight-side seal bags, bellows bags, vacuum bags, retort pouches, roll films, aluminum foil bags, stand-up pouches, composite packaging bags, kraft paper bags, bubble bags, and many other packaging products. Recently Due to the epidemic, custom mask bags have become a trend, To this day, Shunxingyuan Packaging has provided a continuous stream of exquisitely crafted mask bags for numerous customers, such as KN95 mask bags, disposable mask bags, medical mask bags, anti-smog mask bags, transparent mask bags, and foldable protective mask bags. For different needs of different customers, Shunxingyuan Packaging also has many types of mask bags for you to choose from. Welcome to customize! Custom Hotline: 135-4929-7179

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