Super Elongation PUD for Screen Printing Bending Resistance

YY601-1900 is an anionic aliphatic waterborne polyurethane resin with high solid content. The product is free of ethoxylated alkylphenol (APEO), N-methylpyrrolidone (NMP), N,N-dimethylacetamide (DMAC), The products can be used for textile printing coatings such as nylon paste, denim jeans paste, and thick raise paste, and can also be used for leather finishing, synthetic leather, ink and other industries.

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Description

Super elongation PUD for screen printing bending resistance

In the field of water-based screen printing, clothing printing has always occupied a large share. With the development of the footwear industry in recent years, the output and styles of the footwear industry have been greatly improved and enriched. The following discusses the special points of shoe material printing and introduces several main materials for shoe material printing.

Shoe material printing mainly refers to the printing of upper materials, and some are the printing of base materials.

Classification of upper materials and main points of printing

There are many types of upper materials, mainly fiber materials and leather materials.

1. Fiber materials

Among fiber materials, there are mainly natural fiber materials and artificial synthetic fiber materials. Among upper materials, woven fabrics are the main ones, and some knitted materials are also used, which is very different from clothing printing.

In the printing of upper fiber materials, the characteristics of general printing materials should be referred to. In addition to meeting the requirements of general printing materials, special attention should be paid to the following matters.

1) Scratch resistance and wear resistance

Upper printing requires better film formation on the printing surface, especially requiring good adhesion between the printing material and the base material, and not easy to be scratched by sharp objects.

2) Bending resistance and flexibility

Shoe materials are required to have good bending resistance and flexibility, so the printing materials are required to have good toughness, be resistant to bending and not easy to break. Super elongation polyurethane can expect better bending resistance.

3) Anti-sulfurization, yellowing resistance, and aging resistance

Some shoes with rubber need to undergo a vulcanization process during the production process, so the printing materials are required not to yellow or age under the vulcanization process conditions.

4) Anti-freeze, cold resistance, and low-temperature folding resistance

Some shoe materials (especially high-end shoe materials) are required to have good anti-freeze and folding resistance under low temperature (-20~30) °C conditions, so the printing materials are also required to have anti-freeze, cold resistance, and low-temperature folding resistance.

5) Surface anti-pollution

The surface of the shoe material must be anti-pollution, so the printing part is required to have good flatness and anti-stickiness, which can reduce the contamination of the shoe surface under normal circumstances.

6) Acid and alkali resistance

Some shoe surfaces require good acid and alkali resistance, so the printing materials are also required to have good acid and alkali resistance.

Waterborne Polyurethane YY601-1900

(Super Elongation PUD)