Preparation method of regenerated cellulose fibers with high optical shielding property

A technology of regenerated cellulose and covering properties, applied in the direction of artificial filaments made of viscose, can solve the problems of increasing the number of light reflections, poor air permeability of fabrics, and high cost, achieving good results, high modification efficiency, The effect of mutual solubility improvement

Active Publication Date: 2015-09-23
JIANGSU GOLDSUN TEXTILE SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The fibers disclosed in Chinese patents CN200910096997.4 and CN201020116457.3 adopt a skin-core composite structure. At the same time, nano-metal silicon powder is added to the core material, and nano-TiO2 powder is added to the cortex to increase the number of reflections of light in the fiber. Adding nanoparticles to increase the light absorption rate of the fiber, the fiber has achieved a good anti-see-through effect, but there are disadvantages of complicated process and high cost
[0005] The composite fibers disclosed in Chinese patents CN201320540839.5, CN201320540880.2, and CN201320540935.X adopt the method of covering spandex with polyamide fibers with special-shaped cross-sections. This method can improve the covering performance by 20% and the anti-see-through performance by 50%. , but there is also the problem that the process is complicated and expensive
However, the method is complex and belongs to the category of polyester fiber, and the air permeability of the prepared fabric is poor.

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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  • Preparation method of regenerated cellulose fibers with high optical shielding property

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Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: The preparation method of regenerated cellulose fiber with high optical shielding property

[0017] Preparation of viscose solution:

[0018] Cotton pulp with a degree of polymerization of 500 and a mass content of cellulose of 93.5% is used as a raw material, and it is prepared through processes such as dipping, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and degassing. In the viscose liquid that makes, methyl fiber mass content 8.7%, NaOH mass fraction 5.9%, viscosity (falling ball method) 45s, maturity (10%NH 4 Cl) 8.7 mL.

[0019] Preparation of high refractive powder dispersion system:

[0020] In the reactor, prepare 5wt% high refraction powder dispersion system with distilled water, add glyceryl tristearate dispersant accounting for 3% of the high refraction powder mass, and fully stir to obtain a relatively uniform moisture absorbent emulsion. Use a plate-and-frame filter to filter through double-layer fine cloth, a...

Embodiment 2

[0026] Embodiment 2: the preparation method of regenerated cellulose fiber of high optical shielding property

[0027] Preparation of viscose solution:

[0028] Cotton pulp with a degree of polymerization of 500 and a mass content of cellulose of 93.5% is used as a raw material, and it is prepared through processes such as dipping, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and degassing. In the viscose liquid that makes, methyl fiber mass content 8.9%, NaOH mass fraction 6.1%, viscosity (falling ball method) 45s, maturity (10%NH 4 Cl) 8.4ml.

[0029] Preparation of high refractive powder dispersion system:

[0030] In the reactor, use distilled water to prepare a 10wt% high-refraction powder dispersion system, add sodium hexametaphosphate dispersant accounting for 4% of the high-refraction powder mass, and stir well to obtain a relatively uniform high-refraction emulsion. Use a plate-and-frame filter to filter through double-layer fine cloth,...

Embodiment 3

[0036] Embodiment 3: the preparation method of regenerated cellulose fiber with high optical shielding property

[0037] Preparation of viscose solution:

[0038] Cotton pulp with a degree of polymerization of 500 and a mass content of cellulose of 93.5% is prepared through successive processes of dipping, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and deaeration. In the viscose liquid that makes, methyl fiber mass content 9.0%, NaOH mass fraction 6.3%, viscosity (falling ball method) 45s, maturity (10%NH 4 Cl) 8.5ml.

[0039] Preparation of high refractive powder dispersion system:

[0040] In the reaction kettle, a 15wt% high-refraction powder dispersion system was prepared with distilled water, and a relatively uniform high-refraction emulsion was obtained by adding tristearin dispersant accounting for 5% of the mass of the high-refraction powder and stirring thoroughly. Use a plate-and-frame filter to filter through double-layer fine cloth...

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 relates to a preparation method of regenerated cellulose fibers with high optical shielding property. The preparation method comprises the following steps: mixing high-refractivity powder and regenerated cellulose fibers before spinning; adding a dispersant to enable the high-refractivity powder to be uniformly dispersed among the fibers to prepare the regenerated cellulose fibers with high optical shielding property. When passing through a fiber fabric and propagating in the fabric, light can be reflected, the refraction and diffuse reflection frequencies are increased, and the permeability of light in the fabric is greatly reduced to achieve the anti-perspective effect.

Description

technical field [0001] The invention relates to raw materials used in the textile industry and a manufacturing method thereof, in particular to a preparation method of regenerated cellulose fibers with high optical shielding properties. Background technique [0002] With the rapid development of the economy, people's requirements for the individuation and compounding of the functions of textiles are constantly increasing, especially in terms of clothing, the optical properties of fabrics play an increasingly important role, which is directly related to the beauty and protection of daily clothing sex etc. In summer, light-colored and thin clothing is sought after by people, but the light and elegant fashion beauty often has the disadvantage of exposing underwear and human body contours. In addition, swimwear is an essential summer sportswear, but the transparency of ordinary fabrics increases greatly after being soaked in water and stretched. Even if the color design of the ...

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): D01F2/08D01F2/06
Inventor 毛军陈红霞陆鹏丁可敬
Owner JIANGSU GOLDSUN TEXTILE SCI & TECH
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