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Dulling agent content detection method in dull viscose

A detection method and technology of matting agent, which can be applied in the direction of removing certain components, such as weighing, etc., can solve the problems of long time and unfavorable product quality control, and achieve the effect of ensuring extinction, benefiting product quality, and benefiting control.

Inactive Publication Date: 2011-09-07
YIBIN HIEST FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it takes about 70 hours since the matte silk is formed to the completion of the subsequent process, which is too long; in addition, the matting agent is added in the viscose rather than during the formation of the matte silk, so the subsequent matte silk It is not conducive to the control of product quality to detect the content of matting agent in the production of strips.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A detection method for matting agent content in matt viscose, characterized in that it is carried out according to the following process steps:

[0029] A. Weigh 15g of viscose sample, place it on 6 pieces of 10×10cm glass plates, each piece of viscose weighs 2.5g, and then use glass plates of the same specification to press the viscose into a uniform film covering the glass plates.

[0030] B. Pull the two glass plates apart in parallel in opposite directions until they are completely separated, and then put them together with the film into an acid bath at a temperature of 60°C. The acid bath is submerged in the glass plates. After 1-2 minutes, the adhesive will decompose. Form a cellulose film and fall off naturally, take it out and rinse with water until neutral.

[0031] C. Put the cellulose film treated in step B into a 100ml desulfurization bath and boil for desulfurization for 3-5 minutes, take it out and wash it with water until it is neutral, then put it in a 1...

Embodiment 2

[0040] A method for detecting the content of matting agent in matt viscose. First weigh 24g of viscose samples and place them on 8 pieces of 10×10cm glass plates. Each piece of viscose weighs 3g. The glue is pressed into a uniform film covering the glass plate. Then pull the two glass plates in parallel in the opposite direction until they are completely separated, and then put them together with the film into an acid bath at a temperature of 65°C. The cellulose film will fall off naturally, take it out and rinse it with water until it is neutral. Then boil in 150ml of 5g / L NaOH desulfurization bath for 3-5 minutes, take it out and wash it with water until it is neutral, then put it in a 200ml acid bath for washing for 1-2 minutes, take it out and rinse it with distilled water until it is neutral, wring it out Put it into an aluminum box and bake in an oven at 100° C. for 50 minutes. After cooling to room temperature, the weight of the cellulose film was weighed to be 1.9656 ...

Embodiment 3

[0046]A method for detecting the content of matting agent in matt viscose. First weigh 20g of viscose sample and place it on 8 glass plates of 10×10cm. Each piece of viscose weighs 2.5g. The adhesive is pressed into a uniform film that covers the glass plate. Then pull the two glass plates apart in parallel in opposite directions until they are completely separated, and put them together with the film into an acid bath at a temperature of 70°C. The acid bath is submerged over the glass plates. After 1-2 minutes, the viscose will decompose into fibers The thin film will fall off naturally, take it out and rinse it with water until it is neutral. Then boil in 120ml of 5g / L NaOH desulfurization bath for 3-5 minutes, take it out and wash it with water until it is neutral, then put it in a 150ml acid bath for washing for 1-2 minutes, take it out and rinse it with distilled water until it is neutral, and wring it out Put it into an aluminum box and bake in an oven at 110° C. for 30...

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Abstract

The invention relates to the field of viscose fiber, particularly discloses a dulling agent content detection method in dull viscose for producing dull yarn, comprising steps of weighing viscose sample to put on 6 to 8 pieces of 10*10cm glass plates, wherein each viscose weighs 2 to 3g, using the glass plates with the same specification to press the viscoses into uniform film, parallelly pulling away the glass plate, adding to the acid bath, going through desulfuration bath, acid bath, drying and cooling after the viscose is decomposed into cellulose film and dropped, weighing to obtain weight G; then placing into a porcelain crucible which weighs m1, discharging the smoke in a muffle at 300 to 350 DEG C. and burning at 750 to 800 DEG C.; weighing the burned porcelain crucible to obtain weight m2 after cooling; at least, computing the weight percentage content of the dulling agent in the viscose: the dulling agent% in viscose=(m2-m1)*100 / weight of viscose sample. Through inspection ofdulling agent content in dull viscose, whether the added amount of titanium white in the viscose is line with the technical requirement can be known fast, so as to provide reliable foundation for production control and technique adjustment of dull yarn in time, thereby ensuring dulling degree and uniformity of the dull yarn.

Description

technical field [0001] The invention relates to a method for detecting the content of a matting agent in the production process of viscose filament matt threads, in particular to a method for detecting the content of matting agents in matting viscose used for producing matt threads. Background technique [0002] Matte viscose is to add a certain amount of matting agent to the viscose to form a matt viscose, which will be formed into a matt filament after spinning and forming to meet the needs of customers. Matting agent is an auxiliary agent used in chemical fiber production. It is added to the fiber-forming polymer before spinning, which can improve the excessive optical reflection on the fiber surface, so it is called matting agent. The principle of extinction is that the refractive index of the extinction agent is very different from that of the fiber-forming polymer, and the fiber spun after adding it will scatter the incident light and eliminate the aurora, reduce the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
Inventor 饶芳秋李万群邓海燕
Owner YIBIN HIEST FIBER
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