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Self-cleaning waterproof sunshade fabric and preparation method thereof

A self-cleaning and fabric technology, applied in the field of textiles, can solve the problems of reduced fabric aging resistance, poor adhesion of the bottom layer, poor resistance to organic solvents, etc., and achieve excellent weather resistance

Inactive Publication Date: 2014-04-30
GLEN RAVEN TEXTILE TECH SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of self-cleaning fabric has a certain self-cleaning function, it still has the disadvantages of poor self-cleaning effect, non-durable, and poor waterproof performance. Has a certain catalytic decomposition effect, resulting in a greatly reduced aging resistance of the fabric
[0004] In addition, the water repellent and TiO 2 The colloidal emulsion is mixed and finished on the fabric, which will not only affect the waterproof effect of the fabric, but also greatly reduce the photocatalytic effect of nano-titanium dioxide due to the hydrophobicity of the fabric surface
[0005] In order to solve the problems existing in the above self-cleaning fabrics, studies have shown that silicone materials with advantages such as high and low temperature resistance, excellent weather resistance, ozone resistance, chemical corrosion resistance, water resistance and moisture resistance are combined with the above self-cleaning fabrics. Functional fabrics, but due to the characteristics of the silicone resin itself, it is still inevitable that it cannot be dried at room temperature, has poor adhesion to the bottom layer, poor resistance to organic solvents, and is more expensive.

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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  • Self-cleaning waterproof sunshade fabric and preparation method thereof

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preparation example Construction

[0032] The preparation method of self-cleaning waterproof sunshade fabric of the present invention, its step is described in detail as follows:

[0033] Preparation of the fabric layer: wash the dope dyed fabric with water to remove the spinning oil on the fiber surface or the pollutants on the fabric surface, the pollutants include dust, etc. The specific process may include the following steps: Water washing → pressing roller to remove excess water → drum drying;

[0034] Preparation of resin layer and hydrophilic nano titanium dioxide layer:

[0035] First, apply a resin thickening solution with a resin content of 20% to 55% on the front of the above-mentioned dope-dyed fabric by scraping or roller coating to form a wet resin film, and the coating amount is 20g / m 2 ~150g / m 2 ;

[0036] Secondly, spray nano-titanium dioxide colloidal emulsion with a titanium dioxide nanoparticle content of 0.5% to 5% on the surface of the above-mentioned wet resin coating to form a nano-t...

Embodiment 1

[0044] The high weather resistance dope dyed acrylic fabric is selected as the fabric layer 1, and the preparation steps of the fabric layer are as follows: the high weather resistance dope dyed acrylic fabric is washed with water to remove the spinning oil on the surface of the fiber, as well as dust and other pollutants on the surface of the fabric. The process is: padding with water washing aid solution à washing with water à pressing roller to remove excess water à drum drying.

[0045] Preparation of the resin layer 2 and the hydrophilic nano-titanium dioxide layer 3: apply the silicone-modified polyacrylic acid resin thickening solution with a solid content of 45% on the front of the dope-dyed acrylic fabric by scraping to form a resin wet film , the coating amount is 70g / m 2 . Before the dosing dyed acrylic fabric loaded with resin wet film after coating enters the setting machine oven, the hydrophilic nano-titanium dioxide colloidal emulsion with a titanium dioxide na...

Embodiment 2

[0048] The dope dyed polyester fabric with high weather resistance is selected as the fabric layer 1, and the preparatory steps of the fabric layer are as described in Example 1.

[0049] Preparation of resin layer 2 and nano-titanium dioxide layer 3: Coat the silicone-modified polyacrylic resin thickening solution (solid content: 45%) on the front side of the dope-dyed polyester fabric by scraping, and the coating amount is 80g / m 2 . Before the coated dope dyed polyester fabric carrying the resin wet film enters the oven of the setting machine, the hydrophilic nano-titanium dioxide colloidal emulsion with a titanium dioxide nanoparticle content of 4% is sprayed on the surface of the above-mentioned resin wet film, Among them, the spraying amount (dry) of titanium dioxide nanoparticles is 3g / m 2 . Then, the dope-dyed acrylic fabric loaded with the resin wet film and nano-titanium dioxide wet film was baked in an oven at a temperature of 155°C for 90 seconds. A silicone-mo...

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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Abstract

The invention discloses a self-cleaning waterproof sunshade fabric and a preparation method thereof. The self-cleaning waterproof sunshade fabric comprises a fabric layer, a resin layer attached to the surface of the fabric layer, a fluorocarbon polymer layer attached to the other surface of the fabric layer, and a hydrophilic nano titanium dioxide layer attached to the surface of the resin layer. The self-cleaning waterproof sunshade fabric has excellent properties of weather fastness, waterproof performance, and ultraviolet resistance; the nano titanium dioxide, as an excellent photocatalyst, can effectively decompose pollutants, and also has photoinduced hydrophilicity so as to endow the fabric with an excellent self-cleaning function; the nano titanium dioxide is attached to the surface of the resin layer to be effectively prevented from performing catalytic degradation on the fabric layer, so that the fabric is durable. The preparation method optimizes the coating finishing technology of the fabric, and combines the finishing technologies of blade coating (or roller painting), spraying and foaming coating to fulfill the purposes of saving energy, lowering consumption and protecting the environment.

Description

technical field [0001] The invention relates to a functional fabric, in particular to a fabric with self-cleaning, waterproof and sunshade functions, belonging to the technical field of textiles. Background technique [0002] During the use of outdoor fabrics, they need to withstand the test of external weather environments such as wind, rain, and sun. There are also various organic and inorganic pollutants in the air. The surface of the fabric is relatively easy to accumulate dirt, and It is not easy to remove, which not only affects the appearance of the fabric, but also the accumulated dirt can cause the growth and reproduction of microorganisms on the surface of the fabric. The earliest self-cleaning fabrics are easy-to-decontamination fabrics that only use water- and oil-repellent finishing agents to functionally finish textiles. By changing the surface properties of the fabrics, water droplets and some oil stains cannot spread on the fabric surface and are shaken off. ...

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): D06M11/46D06M15/263D06M15/643D06M15/423D06M15/564D06M101/28D06M101/32
Inventor 李华
Owner GLEN RAVEN TEXTILE TECH SUZHOU
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