Application of fabric darkening agent in darkening of real silk fabric

A technology of silk fabric and darkening agent, which is applied in the direction of animal fiber, textiles, papermaking, fiber treatment, etc., can solve the problems of difficult-to-apply fabrics, etc., and achieve the effect of deepening durability, obvious effect, and low refractive index

Inactive Publication Date: 2015-12-09
ZHEJIANG YASHILIN NECKTIE & GARMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, PEG is used as a pore-forming agent, and PEG and SiO 2 The coating solution is prepared by mixing; the substrate after coating is calcined at 400°C to remove PEG, and nanopores are formed in the silica sol film, thus endowed with anti-reflection properties. However, this method is only suitable for high-temperature-resistant substrates, and it is difficult to applied to fabrics; in addition, the SiO used 2 The mass concentration of PEG is only 2.6%, and in order to obtain high porosity, the mass concentration of PEG is as high as SiO 2 three times

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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  • Application of fabric darkening agent in darkening of real silk fabric
  • Application of fabric darkening agent in darkening of real silk fabric
  • Application of fabric darkening agent in darkening of real silk fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] At room temperature of 25°C, weigh 100g of deionized water and add it to 50g of silicon dioxide aqueous dispersion (average particle size 20-25nm, solid content 30%, Zhejiang Yuda Chemical Co., Ltd., ZS-30), After mechanically stirring and mixing evenly, add 1.5g PEG400 (polyethylene glycol, number average molecular weight is 400) dropwise, fully stir to make it evenly mixed, the prepared mixed solution of silicon dioxide and PEG400 is called product 1, the solid content 10%.

[0052] After the product 1 is diluted, the particle size distribution curve is measured by a Malvern nanometer particle size analyzer, as shown in figure 1 shown. It can be seen from the figure that the particle size of product 1 is about 21nm, and the particle size distribution is stable.

Embodiment 2

[0054] Under the condition of room temperature 25°C, weigh 100g of silicon dioxide aqueous dispersion (solid content 30%, average particle size 20-25nm, Zhejiang Yuda Chemical Co., Ltd., ZS-30) into 150g of deionized water, mechanically After stirring and mixing evenly, add 4.5g PEG600 dropwise, fully stir and make it uniformly mixed, the mixed solution of the prepared silicon dioxide and PEG600 (polyethylene glycol, number average molecular weight is 600) is called product 2, and the solid content is 12%.

[0055] After the product 2 is diluted, the particle size distribution curve is measured by a Malvern nanometer particle size analyzer, as shown in figure 2 shown. It can be seen from the figure that the particle size of the product 2 is about 24nm, which is consistent with the particle size of the product 1 obtained in the above-mentioned Example 1. It can be seen that the amount of PEG added has no effect on the particle size of the silica.

Embodiment 3

[0057] Under the condition of room temperature 25°C, weigh 70g of silicon dioxide aqueous dispersion (solid content 30%, average particle size 20-25nm, Zhejiang Yuda Chemical Co., Ltd., ZS-30) into 180g of deionized water, mechanically After stirring and mixing evenly, 6.3gPEG200 (polyethylene glycol, number average molecular weight is 200) is added dropwise, fully stirred to make it uniformly mixed, the mixed solution of silicon dioxide and PEG200 is called product 3, and the solid content is 8.4%.

[0058] The transmission electron micrograph of the product 3 that embodiment 3 obtains is as image 3 as shown, Figure 4 It is a transmission electron micrograph of commercial silicon dioxide (i.e., silicon dioxide in an aqueous dispersion of silicon dioxide). Depend on image 3 and Figure 4 It can be seen that after adding PEG200, the mixed solution of silica and PEG200 has no obvious difference in nanoparticle morphology compared with commercial silica, and still maintain...

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Abstract

The invention discloses an application of a fabric darkening agent in darkening of a real silk fabric. The adopted specific fabric darkening agent is prepared from the following raw materials in parts by weight: 50 to 150 parts of silicon dioxide dispersing solution, 50 to 300 parts of water and 0.075 to 13.5 parts of polyvinyl alcohol, wherein the solid content (percentage by weight) of silicon dioxide in the silicon dioxide dispersing solution is 20 to 40%. A rapid preparation method of the fabric darkening agent comprises the following steps: diluting the silicon dioxide dispersing solution with water, then adding polyethylene glycol (PEG), and uniformly mixing to obtain the fabric darkening agent. The fabric darkening agent is prepared by blending the silicon dioxide particle dispersing solution and an appropriate amount of polyethylene glycol (PEG); the preparation method is simple and rapid, and easy to implement. The real silk fabric is finished by a simple dipping process and is then baked, so that the darkening effect of the real silk fabric is remarkable.

Description

technical field [0001] The invention relates to the technical field of fabric darkening agents, in particular to the application of a fabric darkening agent in silk fabric darkening. Background technique [0002] Among many fiber varieties, the surface of polyester and silk fibers is smooth, and the difference in refractive index with air is large (polyester: 0.73; silk: 0.60), the incident light is reflected in a large amount, and the light intensity transmitted into the fiber is small, resulting in the dye color efficiency. Low, it is difficult for the fabric to present a strong color style. This phenomenon is particularly evident for fine denier and ultrafine denier polyester fibers. [0003] Fabric darkening finishing refers to a finishing method that realizes darkening of fabrics without increasing the amount of dyes. In the existing deepening finishing technology, organic fluorine and silicone resin are often used to form a layer of homogeneous anti-reflection resin ...

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): D06M11/79D06M15/53D06M101/32D06M101/10
Inventor 吴桂红裘如飞范博源
Owner ZHEJIANG YASHILIN NECKTIE & GARMENT
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