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A upper fabric and a preparation method thereof

A technology for fabrics and shoe uppers, applied in shoe uppers, footwear, boot legs, etc., can solve the problems of large coil gaps and difficulty in taking into account waterproof performance.

Active Publication Date: 2019-01-15
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the current upper materials are difficult to be waterproof, especially sports upper materials, which are basically made of knitted warp knitting or weft knitting. Since the structure of knitted fabrics is coils, the gaps in the coils are relatively large, which is easy to breathe and moisture But it is difficult to take into account the waterproof performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Prepare the slurry: mix the water-based polyurethane, wetting and dispersing agent and polytetrafluoroethylene powder with a particle size of 50-100μm, stir the mixture at 300-1000 revolutions / min for 200 minutes and then stand for more than 24 hours to obtain a shape memory finishing slurry; The mass ratio of water-based polyurethane, wetting and dispersing agent and polytetrafluoroethylene is 93:6:6;

[0019] Dipping: immersing the fabric in the shape memory finishing slurry for 40 minutes to obtain a shape memory fabric; the mass ratio of the fabric to the shape memory finishing slurry is 30:105;

[0020] Adhesion: The TPU film is adhered to the outer surface of the shape memory fabric with an adhesive to obtain the shoe upper fabric.

Embodiment 2

[0022] Preparation of slurry: mix water-based polyurethane, wetting and dispersing agent and polytetrafluoroethylene powder with a particle size of 50-100μm, stir the mixture at 300-1000 revolutions / min for 150-200min and then stand for more than 24h to obtain a shape memory finishing slurry ; The mass ratio of the aqueous polyurethane, wetting and dispersing agent and polytetrafluoroethylene is 90:4:4;

[0023] Dipping: immersing the fabric in the shape memory finishing slurry for 10 minutes to obtain a shape memory fabric; the mass ratio of the fabric to the shape memory finishing slurry is 20:100;

[0024] Bonding: The PU film is bonded to the outer surface of the shape memory fabric by thermocompression bonding to obtain the shoe upper fabric. The pressing pressure is 10MPa, the temperature is 40°C, and the film pressure glue is added during the preparation 25wt% curing agent.

Embodiment 3

[0026] Preparation of slurry: mix water-based polyurethane, wetting and dispersing agent and polytetrafluoroethylene powder with a particle size of 50-100μm, stir the mixture at 300-1000 revolutions / min for 150-200min and then stand for more than 24h to obtain a shape memory finishing slurry ; The mass ratio of the water-based polyurethane, wetting and dispersing agent and polytetrafluoroethylene is 95:7:7;

[0027] Dipping: immersing the fabric in the shape memory finishing slurry for 120 minutes to obtain a shape memory fabric; the mass ratio of the fabric to the shape memory finishing slurry is 40:130;

[0028] Bonding: The PU film is bonded to the outer surface of the shape memory fabric by thermocompression bonding to obtain the shoe upper fabric. The pressing pressure is 0.5MPa, the temperature is 160°C, and the film pressure glue is added during the preparation With 3wt% curing agent.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

Shape memory finishing slurry is used for treating the upper material so that the upper can be quickly restored to the original state after the movement such as bending and impact, the various parts of the foot are protected from damage to the maximum extent, the appearance shape of the shoe can be restored in the fastest time, and a microporous flexible film is adopted, which can play the role ofwaterproofing of the upper.

Description

Technical field [0001] The invention relates to the field of fabrics, in particular to a shoe upper fabric and a preparation method thereof. Background technique [0002] The shoe upper is the most susceptible to bending position. After a long time of use, the shoe upper will crease or even break due to a lot of bending. At the same time, the current shoe upper materials are difficult to be waterproof, especially the sports shoe upper materials, which are basically made of knitted warp knitting or weft knitting. Because the structure of the knitted fabric is loops, the loops have relatively large gaps, which are easy to breathe and moisture. However, it is difficult to balance waterproof performance. Summary of the invention [0003] For this reason, it is necessary to provide a shoe upper material that has resilience, can withstand a large amount of bending, does not produce creases, and is waterproof at the same time. In order to achieve the above objective, the inventor provi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43B23/02
CPCA43B23/0235A43B23/0255
Inventor 严涛海时雅菁李永贵
Owner MINJIANG UNIV