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 b

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

Example Embodiment

[0099] Example 1:

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

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

[0102] N,N-Dimethylformamide (DMF) 70 parts

[0103] Solvent pigment (such as: white paste) 0.5 part

[0104] 15 parts of wood flour

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

[0106] Non-ionic surfactant (D-101) 0.5 part

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

[0108] Using wet synthetic leather production equipment, the prepared thermoplastic wet polyurethane slurry is coated on the synthetic leather woven fabric and then enters the coagulation tank to solidify, washed and dried to prepare wet synthetic leather semi-finished products.

[0109] (2) Preparation of semi-finished products of waterproof and breathable wet synthetic leather: using a post-processing grinder, the semi-finished products of wet synthetic leather prepared in (1) are subjected to grinding treatment to obtain semi-finished waterproof and breathable wet...

Example Embodiment

[0131] Example 2:

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

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

[0134] N,N-Dimethylformamide (DMF) 60 parts

[0135] Solvent color paste (black paste) 0.5 part

[0136] Wood flour 5 parts

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

[0138] Non-ionic surfactant (D-101) 1 part

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

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

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

Example Embodiment

[0160] Example 3:

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

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

[0163] N,N-Dimethylformamide (DMF) 70 parts

[0164] Solvent pigment (such as: white paste) 0.5 part

[0165] 15 parts of wood flour

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

[0167] Non-ionic surfactant (D-101) 0.5 parts

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

[0169] Using wet synthetic leather production equipment, the formulated thermoplastic wet polyurethane slurry is coated on the synthetic leather woven fabric and then enters the coagulation tank to solidify, washed and dried to obtain semi-finished wet synthetic leather.

[0170] (2) Preparation of semi-finished products of waterproof and breathable wet synthetic leather: the semi-finished wet synthetic leather prepared by (1) is subjected to acupuncture and perforation treatment using post-processing perforating equipment to obtain semi-finished waterproof and brea...

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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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