Dupont paper and washed kraft paper are two commonly used materials for bag making, each with unique characteristics and application scenarios. In this article, we will compare in detail the materials, uses, and advantages and disadvantages of these two materials when making bags.

DuPont paper, a special high-density polyethylene material produced by DuPont, looks like paper but combines the characteristics of paper, film and fabric. Its material is pure, made of 100% high-density polyethylene and contains no additives such as adhesives. White DuPont paper often gives people a sense of simplicity and can also present a colorful appearance through dyeing or printing. In terms of physical properties, DuPont paper is outstanding. It has the magical characteristics of being waterproof and breathable. Liquid water cannot penetrate, but gas and water vapor can pass freely. This makes the items placed in the bag not only avoid being soaked by water but also keep the air fresh and reduce the generation of odors. At the same time, it is light, strong and tough, resistant to tearing and puncturing, and can be repeatedly folded more than 20,000 times and is durable. The patented flash spinning process used by it endows DuPont paper with excellent performance. In application fields, from personal protection to industrial packaging, from clothing bags to home decoration, DuPont paper can show its prowess.

However, DuPont paper is not perfect. Its special texture may make some people not used to it. Compared with traditional fabrics or leathers, the feel and texture are quite different, which affects the acceptance of it as a high-end product to a certain extent. Moreover, the high temperature resistance of DuPont paper is limited. It will shrink or even melt in a high temperature environment. In addition, due to the complex production process and high raw material cost, the price of DuPont paper bags is relatively high, which may limit its application in some price-sensitive markets.

Washed kraft paper uses natural fiber pulp as raw material and has the characteristic of being washable after special treatment. It has the tough and stiff characteristics of kraft paper. The surface may also present a texture and luster similar to leather. The feel is close to leather. The bag made of it has a unique retro style and texture, which meets consumers' pursuit of individuality and fashion. Washed kraft paper has some water resistance,Daily cleaning and maintenance are very convenient. At the same time, it has high strength. The stitching strength, abrasion resistance and tear resistance are all excellent. It can bear a certain weight and tension and is suitable for making bags that are often used or loaded with heavy items. In addition, washed kraft paper is degradable and environmentally friendly. It will decompose after being buried in outdoor soil for several months, which is in line with the environmental protection concept. In terms of processing, it has good adaptability and can be processed by various processes to meet different design requirements.

However, washed kraft paper also has its shortcomings. Compared with DuPont paper, its waterproof performance is limited. Although it has certain water resistance, it may still leak water when soaked in water for a long time or encountered a large amount of water impact. It is not suitable for extremely humid or underwater environments. Moreover, in a humid environment, if it is squeezed by heavy objects for a long time or stored improperly, it may deform, affecting the appearance and performance. In addition, the color selection of washed kraft paper is relatively small. In terms of color vividness and durability, it may not be as good as some synthetic materials, and it is difficult to achieve complex color designs.

In general, DuPont paper and washed kraft paper each have their own advantages in making bags. Whether it is consumers who pursue extreme performance or fashionistas who are fond of retro styles, they can find bags suitable for themselves in these two materials. With their unique charm, they enrich our lives and also contribute to the environmental protection cause.

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