Production process of waterborne polyurethane superfiber conductive napped leather for touch screens

A water-based polyurethane and production process technology, which is applied in fiber treatment, fabric surface trimming, continuous treatment of textile materials, etc., can solve the problems of non-conductive materials for making gloves and insensitive touch points, so as to improve the color fastness to rubbing, The effect of reducing insulation and simple preparation method

Inactive Publication Date: 2020-01-24
ZHEJIANG FANSHENG MICROFIBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, gloves made of ordinary microfiber synthetic leather cannot make the touch screen respond normally when using touch screen electronic products. The reason is that the material used to make gloves cannot conduct electricity.
[0005] Now there are some gloves made of conductive polyurethane microfiber suede on the market, although it has been able to get the position of some touch points, allowing people to wear gloves to operate the touch screen, but there is still the problem that the touch points are not sensitive enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A production process of water-based polyurethane superfiber conductive suede for touch screen,

[0024] 1. Acupuncture process:

[0025] 1) Fiber selection: sea-island fiber, at least partially shrinkable sea-island fiber; at least partially conductive sea-island fiber (the island has a conductive function); example 3:7;

[0026] 2) Acupuncture process: through the processes of opening and cleaning, carding, laying and acupuncture, it is made into non-woven fabrics;

[0027] 3) Non-woven performance: gram weight 300g / m 2 , with a density of 0.15g / cm 3 ;

[0028] 2. Hot water shrinkage process, hot water temperature 60°C;

[0029] 3. The drying and shaping process temperature is 120°C;

[0030] 4. Impregnated polyurethane process

[0031] Formula composition: water-based polyurethane: 30 parts, conductive powder: 5 parts, crosslinking agent: 1 part, thickener: 1 part, defoamer: 0.1 part, deionized water: 50 parts, inorganic salt: 0.5 part and even Joint agent: 0.5...

Embodiment 2

[0042] A production process of water-based polyurethane superfiber conductive suede for touch screen,

[0043] 1. Acupuncture process:

[0044] 1) Fiber selection: sea-island fiber, at least partially shrinkable sea-island fiber; at least partially conductive sea-island fiber (the island has a conductive function); example 3:7;

[0045] 2) Acupuncture process: through the processes of opening and cleaning, carding, laying and acupuncture, it is made into non-woven fabrics;

[0046] 3) Non-woven performance: weight 400g / m 2 , the density is 0.2g / cm 3 ;

[0047] 2. Hot water shrinkage process, hot water 80°C;

[0048] 3. The drying and shaping process temperature is 130°C;

[0049] 4. Impregnated polyurethane process

[0050] Formula composition: water-based polyurethane: 40 parts, conductive powder: 10 parts, crosslinking agent: 2 parts, thickener: 1.5 parts, defoamer: 0.3 parts, deionized water: 85 parts, inorganic salt: 1.1 parts and even Joint agent: 0.8 parts. Among t...

Embodiment 3

[0061] A production process of water-based polyurethane superfiber conductive suede for touch screen,

[0062] 1. Acupuncture process:

[0063] 1) Fiber selection: sea-island fiber, at least partially shrinkable sea-island fiber; at least partially conductive sea-island fiber (the island has a conductive function); example 3:7;

[0064] 2) Acupuncture process: through the processes of opening and cleaning, carding, laying and acupuncture, it is made into non-woven fabrics;

[0065] 3) Non-woven performance: gram weight 600g / m 2 , with a density of 0.3g / cm 3 ;

[0066] 2. Hot water shrinkage process, hot water 99 ℃;

[0067] 3. The drying and shaping process temperature is 150°C;

[0068] 4. Impregnated polyurethane process

[0069] Formula composition: water-based polyurethane: 50 parts, conductive powder: 15 parts, crosslinking agent: 3 parts, thickener: 2 parts, defoamer: 0.5 parts, deionized water: 100 parts, inorganic salt: 1.5 parts and even Joint agent: 1.5 parts....

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Abstract

The invention relates to a production process of waterborne polyurethane superfiber conductive napped leather for touch screens, including weaving sea-island fiber into non-woven fabric, shrinking byhot water, primary drying and sizing, impregnating with polyurethane conductive liquid, drying, baking, performing alkali decrement, drying and sizing again, dyeing, napping and finishing. The production process is simple; since the impregnation liquid is added with a conductive material, the insulativity of the napped leather is reduced, while the physical property and the touch of the napped leather are not changed; waterborne polyurethane which is used as the conductor carrier is green and environmentally friendly, can be bonded with other components of the superfiber conductive napped leather after being dried, and is not easy to be washed by water, and accordingly, the wear resistance is improved to some extent; when users touch the display screens of electronic products, communication between the human body and a magnetic field generated by glove leather is achieved, and thus, the effect of using the touch screens even when users wear gloves can be realized.

Description

technical field [0001] The invention relates to a production process of conductive suede, in particular to a production process of water-based polyurethane superfiber conductive suede used for touch screens. Background technique [0002] With the update of technology trends and the introduction of Apple's Iphone in 2007, capacitive touch screen products began to enter the stage of history, and then touch screens were popularized in the field of new consumer electronics very quickly. 75% of the total mobile phone shipments, but with it comes the problem of keeping warm in winter with capacitive touch screen products. Since capacitive touch screen products (non-conductive) cannot be operated with gloves, it is very cold to use touch screen products outdoors. [0003] Glove leather has weak resistance and excellent conductivity, can communicate with the human body's magnetic field, and use the human body's current induction to work. When a finger touches the metal layer, due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M11/74D06M11/155D06M11/56D06M11/45D06M11/46D06B21/00D06C11/00
CPCD06B21/00D06C11/00D06M11/155D06M11/45D06M11/46D06M11/56D06M11/74D06M15/564D06N2205/023
Inventor 杨振东王国强孙进琳王友忠
Owner ZHEJIANG FANSHENG MICROFIBER PROD
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