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Novel waterproof air previous polyurethane artificial leather and preparation thereof

A waterproof, breathable, and manufacturing method technology, which is applied to chemical instruments and methods, synthetic resin layered products, textiles and papermaking, etc., can solve the problems of performance degradation and destruction of polyurethane bond structure, etc., and achieve high physical properties, plump hand feeling, Excellent waterproof and breathable effect

Active Publication Date: 2009-05-27
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the air permeability can be improved appropriately by punching holes, but the bond structure of polyurethane will be destroyed, resulting in a decrease in performance.

Method used

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  • Novel waterproof air previous polyurethane artificial leather and preparation thereof
  • Novel waterproof air previous polyurethane artificial leather and preparation thereof
  • Novel waterproof air previous polyurethane artificial leather and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] (1) Wet slurry preparation (weight ratio):

[0101] Thermoplastic polyurethane elastomer resin (SW-2020RH) 100 parts

[0102] 70 parts of N,N-dimethylformamide (DMF)

[0103] Solvent-based colorant (such as: white paste) 0.5 parts

[0104] 15 parts wood flour

[0105] Anionic surfactant (D-700) 1 part

[0106] 0.5 parts of nonionic surfactant (D-101)

[0107] Water and oil repellant (PF-1108) 2 parts

[0108] Using wet-process synthetic leather production equipment, the prepared thermoplastic wet-process polyurethane slurry is coated on the woven fabric for synthetic leather, and then entered into a coagulation tank for solidification, washed with water and dried to obtain a wet-process synthetic leather semi-finished product.

[0109] (2) Preparation of waterproof and breathable wet-process synthetic leather semi-finished products: using a post-treatment dermabrasion machine, the wet-process synthetic leather semi-finished products prepared by (1) are subjected to...

Embodiment 2

[0132] (1) Wet slurry preparation (weight ratio):

[0133] Thermoplastic polyester polyurethane resin (SW-2020RH) 100 parts

[0134] 60 parts of N,N-dimethylformamide (DMF)

[0135] Solvent-based color paste (black paste) 0.5 parts

[0136] 5 parts wood flour

[0137] Anionic surfactant (D-700) 2 parts

[0138] Nonionic surfactant (D-101) 1 part

[0139] Water and oil repellant (PF-1108) 1 part

[0140] Using wet-process synthetic leather production equipment, the prepared thermoplastic wet-process polyurethane slurry is coated on the non-woven base fabric for synthetic leather, and then enters the coagulation tank to solidify, washed and dried to obtain wet-process synthetic leather semi-finished products.

[0141] (2) Preparation of waterproof and breathable wet-process synthetic leather semi-finished products: using a post-treatment dermabrasion machine, the wet-process synthetic leather semi-finished products prepared in (1) are subjected to dermabrasion treatment to ...

Embodiment 3

[0161] (1) Wet slurry preparation (weight ratio):

[0162] Thermoplastic polyurethane elastomer resin (SW-2020RH) 100 parts

[0163] 70 parts of N,N-dimethylformamide (DMF)

[0164] Solvent-based colorant (such as: white paste) 0.5 parts

[0165] 15 parts wood flour

[0166] Anionic surfactant (D-700) 1 part

[0167] 0.5 parts of nonionic surfactant (D-101)

[0168] Water and oil repellant (PF-1108) 2 parts

[0169] Using wet-process synthetic leather production equipment, the prepared thermoplastic wet-process polyurethane slurry is coated on the woven fabric for synthetic leather, and then entered into a coagulation tank for solidification, washed with water and dried to obtain a wet-process synthetic leather semi-finished product.

[0170] (2) Preparation of waterproof and breathable wet-process synthetic leather semi-finished products: using post-processing punching equipment, the wet-process synthetic leather semi-finished products prepared by (1) are subjected to ac...

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Abstract

The invention discloses novel waterproof and moisture-permeable polyurethane synthesized leather and a method for manufacturing the same. The novel waterproof and moisture polyurethane synthesized leather consists four layers, namely, base cloth, a thermoplastic wet-process polyurethane wet-process coating coated on the base cloth, a dry-process polyurethane adhesive layer and a top coat, wherein thermoplastic wet-process polyurethane wet-process slurry is coated on the base cloth to form a semi-finished product of wet-process synthetic leather, the wet-process synthetic leather is punched and ground to make holes on the thermoplastic wet-process polyurethane wet-process coating, and the dry-process polyurethane adhesive layer and the top coat are arranged sequentially on the thermoplastic wet-process polyurethane wet-process coating. Both the dry-process polyurethane adhesive layer and the top coat are provided with micropores. The top coat contains pigment. The synthetic leather manufactured has excellent waterproof and moisture-permeable performance like natural leather, high wear resistance, high-hydration, high-frequency hot cutting, low temperature resistance and other functions as well as excellent three-dimension patterns and fullness.

Description

technical field [0001] The invention relates to a method for manufacturing polyurethane synthetic leather, in particular to a method for manufacturing a novel waterproof and breathable polyurethane synthetic leather. Background technique [0002] Polyurethane synthetic leather (PU synthetic leather), especially synthetic leather with high physical properties, is a kind of fabric that uses various cloth bases as substrates, and coats polyurethane resin on the substrates to endow various patterns, patterns, functions and handles. Most of the physical and chemical properties of imitation leather and synthetic leather can completely reach or exceed that of real leather, but there is still a certain gap in waterproof and breathable performance. This is because the surface of polyurethane synthetic leather with high physical properties has a dense polyurethane film, which makes the air permeability significantly worse than that of natural leather, which will cause discomfort such ...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06C27/00B32B27/12B32B27/40
Inventor 黄万里唐涛王义峰惠坚强姚和平
Owner ANHUI ANLI MATERIAL TECH
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