Knowledge of clothing packaging bag materials, do you know all of these?

Many customers do not understand much about the material knowledge of clothing packaging bags before customizing them. They don't know how to choose suitable clothing packaging bags for their products, how to choose the appropriate thickness, or how to choose materials that can achieve the desired effect. Below, Shunxingyuan Packaging, a professional flexible packaging manufacturer, will popularize some knowledge about clothing packaging bags, hoping to help customers who need to customize clothing packaging bags.

Clothing Packaging Bag The unit of thickness is '丝' (si). The more '丝', the thicker and heavier, and the better the load-bearing capacity. 1 丝 = 0.01 mm ， General supermarket shopping bags are 5-丝 (si) double-sided. Below 5 丝 (si) is considered ordinary thin, 5 丝 (si) is medium thickness, around 7-10 丝 (si) is thickened, and 14 丝 (si) is extra thick, with super load-bearing capacity, suitable for repeated use.

1.  PE Clothing Packaging Bags are divided into high-density and low-density. High-density ones are tougher, have high transparency, feel stiff, and are relatively more expensive. The plastic bags generally provided by supermarkets are high-density PE bags. Low-density PE bags are the most common soft-feeling bags given in markets for vegetables, which are of lower quality, have poor transparency, and are cheaper.

PE Flat Opening bags are made of new high-pressure PE raw material, transparent and tough, smooth to the touch, comfortable and soft, new material, non-toxic, odorless, and harmless. Suitable for internal and external dust protection of clothing, household items, industrial electronic products, hardware products, mechanical parts, food packaging, cosmetics, heavy paper product packaging, and various other items for dust and moisture protection.

Note: High-pressure flat opening bag are not self-sealing bags or self-adhesive bags. Their openings are double-sided flat with no sealing adhesive or clip. These types of bags require sealing with a sealing machine/tape/card/rope, etc.

PE high-pressure bag low-pressure bag difference : High-pressure plastic bag material: Low-density polyethylene resin (LDPE) Low-pressure plastic bag material: High-density polyethylene resin (HDPE)

1. High-pressure bags have better transparency, while low-pressure bags are translucent.

2. High-pressure bags feel very soft, while low-pressure bags have a harder texture and make a rustling sound.

3. High-pressure bags have slightly better tensile strength and toughness than low-pressure bags, but these properties are also very good for low-pressure bags.

Similarities of PE high-pressure and low-pressure: Non-toxic, odorless, not easily permeable to water, and insoluble in oil, etc.

2. Nylon bags refer to plastic bags made from various polyamides, differing based on the specific amide material. However, generally speaking, they have a good texture in appearance, are thick, and feel silky smooth to the touch. They are generally used for high-end clothing, jewelry, and other goods, and are relatively more expensive.

PE bags and PP bags, OP P bags, etc. differences:

PE bags : are high molecular organic compounds formed by the polymerization of ethylene. Polyethylene is globally recognized as the best material for food contact. It is non-toxic, odorless, and meets food packaging hygiene standards. Polyethylene film is lightweight and transparent, with properties such as moisture resistance, oxidation resistance, acid resistance, alkali resistance, general airtightness, and excellent heat-sealing. It is one of the most used and widely applied plastic bags in packaging printing. The bag body is softer, but its transparency is not as high as other materials, appearing somewhat opaque. , Good tensile strength, not easy to burst 。

PP bags: Commonly known as: Bai Zhe Jiao. Polypropylene is a representative of poly-α-olefins, a thermoplastic resin obtained by polymerizing propylene, with its monomer being propylene CH2=CH－CH3. Depending on the initiator and polymerization process, polypropylene can be divided into three configurations: isotactic polypropylene, atactic polypropylene, and syndiotactic polypropylene. Isotactic polypropylene easily forms a crystalline state, with crystallinity exceeding 95% and a molecular weight between 80,000 and 150,000, giving it good heat and solvent resistance; atactic polypropylene is a non-crystalline, slightly viscous white waxy substance at room temperature, with a low molecular weight between 3,000 and 10,000, and an irregular structure , lacking cohesion, with limited applications. The bag body is harder, but transparency is relatively higher and clearer, tensile strength is not very good , easily bursts 。

OPP bags: Have the best and highest transparency, being the most translucent, with functions of dust protection and enhancing the value of packaged products. They can fully display the products inside during sales, so OPP plastic bag products are usually used as outer packaging for goods sales, serving both protective and beautifying purposes. Widely used in fields such as jewelry, masks, jade, stationery, toys, tableware, kitchen utensils, and clothing. The bag body is the most brittle, has the highest transparency, insufficient tensile strength, but is most prone to bursting. And printing is most likely to decolorize. 。

Dongguan Shunxingyuan Packaging Products Co., Ltd. is a professional flexible packaging manufacturer, with advanced production equipment, possessing over 19 years of flexible packaging manufacturing experience ， possesses strong R&D, design, and production capabilities, with products widely used in industries such as clothing and apparel, food, chemicals, home gifts, hardware and electronics. The company adheres to the business philosophy of 'survival by reputation, development by quality,' and aims for 'mutual cooperation, mutual benefit, and common development,' establishing stable cooperative relationships with clients. Our customers are spread across many countries worldwide, ， including ADIDAS, AAPE, IZZUE, IT, and BRAINERD these All are famous brands we cooperate with. The company's main business scope includes: various types of plastic bags applied in industries such as apparel, food, chemicals, home gifts, electronics, etc. Such as color-printed multi-layer composite center-seal, three-side seal, eight-side stand-up food packaging bags, apparel packaging bags, anti-static packaging bags, vacuum nylon bags, retort pouches, food roll film, aluminum foil bags, shampoo bags, ink cartridge bags, bone-attached zipper bags, stand-up zipper bags, composite header bags, PE/PP/PO plastic bags, PP/PE sheet packaging bags, etc. We sincerely welcome your inquiries, discussions, and guidance, and look forward to your sincere cooperation! Customization hotline: 135-4929-7179