Ultra-fine pearl slurry for regeneration cellulose fiber mixing and producing method thereof

A technology of regenerated cellulose and production method, applied in the direction of single-component cellulose rayon, chemical characteristics of fibers, textiles and papermaking, etc., can solve the problems of uneven distribution, powder agglomeration, low strength, etc. and uneven distribution, stable continuous production, good finish

Active Publication Date: 2008-08-13
SHANGHAI NEW SPINNING TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards and the continuous development of science and technology, the demand and production of functional fibers and their fabrics have been increasing in recent years, and various types of functional fibers and fabrics have come out one after another. Glue fiber (Patent No. ZL-

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1) Material selection: Freshwater pearls grown for more than three years, discarded and cleaned;

[0039] 2), primary crushing: the freshwater pearls are crushed into d 50 ≤200μm fineness pearl powder, the speed is 1500 rpm;

[0040] 3), secondary pulverization (surface modification): using a counter-jet airflow pulverizer to d 50 ≤200μm fineness pearl powder crushed into d 50 Pearl powder with a fineness of ≤2μm, the air jet speed is 500 m / min, 1% long-chain fatty acid diluent is added during the crushing process, and the surface of the powder is modified by spraying;

[0041] 4), final crushing (pulping, surface modification): use a wet stirring grinder to grind d 50 ≤2μm fineness pearl powder, in the crushing process, add 1% sodium silicate at the 10th hour, add 1.25% sodium hexametaphosphate at the 40th hour, add 1.2% sodium hexametaphosphate at the 50th hour, and make it containing d 90 The primary slurry of pearl powder with a fineness of <1 μm (solid content ...

Embodiment 2

[0048] 1) Material selection: Seawater pearls grown for more than two years, discarded and cleaned;

[0049] 2), primary crushing: using a high-speed rotary impact crusher to crush seawater pearls into d 50 ≤200μm fineness pearl powder, the impeller peripheral speed is 50 m / s;

[0050] 3), secondary crushing (surface modification): use a circulating jet mill to grind d 50 ≤200μm fineness pearl powder crushed into d50 ≤2μm fineness pearl powder, air jet speed is 450 m / min;

[0051] 4), final crushing (pulping, surface modification): use ultra-micro-wet pulverizer to grind d 50 Pearl powder with a fineness of ≤2μm is crushed. During the crushing process, add 1% cetyltrimethylammonium bromide at the 10th hour, add 1% sodium aluminate at the 40th hour, and add 1.25% polymethacrylic acid at the 50th hour , add 0.5% titanate coupling agent at the 55th hour to make d 90 The primary slurry of pearl powder with a fineness of <1 μm (solid content 49%), the temperature is 8°C;

[00...

Embodiment 3

[0057] 1) Material selection: remove the outer layer of the shell after bead removal, remove the defective ones, and clean them;

[0058] 2), primary crushing: using a stirring grinder to crush the inner layer of the shell into d 50 ≤200μm fineness primary powder, the stirring plate rotates at 300 rpm;

[0059] 3), secondary crushing (surface modification): use a flat jet mill to grind d 50 ≤200μm fineness primary powder is crushed into d 50 ≤2μm fineness secondary powder, the air jet speed is 300 m / min, add dioctadecyl dimethyl ammonium chloride diluent with a mass ratio of 1% during the pulverization process, and spray the powder Surface Modification;

[0060] 4), final crushing (pulping, surface modification): use a wet impact crusher to grind d 50 The secondary powder with a fineness of ≤2 μm is crushed. During the crushing process, 0.7%, 0.96%, and 0.7% of dioctadecyldimethylammonium chloride are added at the 10th hour, 45th hour, and 55th hour respectively to prepare...

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PUM

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Abstract

The invention discloses a super-fine pearl filling and a producing method of the same for regenerated cellulose fiber blending, including a pearl powder, a water soluble dispersant and a carrier solution. The weight percentage of each component is 10-60% pearl powder, 0.5-5% water soluble dispersant and 40-80% carrier solution, the said total amount is 100%. The invention solves the problem of agglomeration of powder and distributed unevenly in the spinning process which adds a pearl super-fine powder of existing technology, the smooth finish of fiber product is good, the intension is high and the continuous production is stable.

Description

1. Technical field [0001] The invention relates to a functional textile and a production method thereof, in particular to an ultrafine pearl slurry for blending regenerated cellulose fibers and a production method thereof. 2. Background technology [0002] With the improvement of people's living standards and the continuous development of science and technology, the demand and production of functional fibers and their fabrics have been increasing in recent years, and various types of functional fibers and fabrics have come out one after another. Glue fiber (Patent No. ZL-2004100679625), but due to the particularity of the regenerated cellulose fiber production process, after adding pearl ultrafine powder in the spinning process, problems such as powder agglomeration and uneven distribution occurred, resulting in Defects such as poor fiber finish, low strength and unstable continuous production. 3. Contents of the invention [0003] One of the objectives of the present inv...

Claims

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Application Information

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IPC IPC(8): D01F2/00D01F1/10
Inventor 陈心华李东平
Owner SHANGHAI NEW SPINNING TECH DEV CENT
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