Method for manufacturing sheet-like product
A manufacturing method and sheet-like technology, applied in textiles, papermaking, fiber processing, etc., can solve problems such as unresolved, water-dispersed polyurethane hardening, etc., and achieve the effects of excellent moisture and heat resistance, good surface appearance and hand feeling
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0142] As the sea component, polyethylene terephthalate copolymerized with 8 mol% of sodium isophthalate-5-sulfonate was used, and as the island component, polyethylene terephthalate was used, and With a composite mass ratio of 20% by mass of the sea component and 80% by mass of the island component, a sea-island type composite fiber with an island number of 16 islands per filament and an average fiber diameter of 20 μm was obtained. The obtained island-in-the-sea composite fibers were cut into fiber lengths of 51 mm to form staple fibers, and a fiber web was formed by a card and a crosslapper, and a nonwoven fabric was formed by needle punching.
[0143] The nonwoven fabric thus obtained was immersed in hot water at a temperature of 97° C. for 5 minutes to shrink it, and dried at a temperature of 100° C. for 10 minutes. Next, an aqueous solution adjusted to 10% by mass (in terms of solid content) of PVA [NM-14 manufactured by Nippon Synthetic Chemicals Co., Ltd.] with a degre...
Embodiment 2
[0148] The crosslinking agent to be given was changed to a blocked isocyanate series ["ELASTRON" (registered trademark) BN-69 manufactured by Daiichi Kogyo Pharmaceutical Co., Ltd.], except that, it was performed in the same manner as in Example 1 to obtain a weight per unit area of 258g / m 2 artificial leather. The obtained artificial leather had good abrasion resistance and appearance, and had good hand feeling. In addition, the stress retention rate at 10% elongation of the fabric before dyeing when wet was 74%. The results are shown in Table 1.
Embodiment 3
[0150] As the sea component, polyethylene terephthalate copolymerized with 8 mol% of isophthalic acid-5-sulfonate sodium was used, and as the island component, polyethylene terephthalate was used. With a compounding ratio of 20% by mass and an island component of 80% by mass, an island-in-sea type composite fiber with an island number of 16 islands / filament and an average fiber diameter of 20 μm was obtained. The obtained island-in-the-sea composite fiber was cut into a fiber length of 51 mm to make short fibers, and a fiber web was formed by a carding machine and a cross-lapper, and a non-woven fabric was made by needle punching.
[0151] The nonwoven fabric thus obtained was immersed in hot water at a temperature of 97° C. for 2 minutes to shrink it, and dried at a temperature of 100° C. for 5 minutes. Next, the obtained nonwoven fabric was impregnated with a dispersion liquid (the dispersion liquid was added in an amount of 4% by mass relative to the polyurethane solid cont...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More