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Process for preparing water soluble plant cellulose (thread) and color variable water soluble plant cellulose (thread)

A plant cellulose and fiber thread technology, applied in dyeing, fiber treatment, plant raw materials, etc., can solve the problems of difficult to guarantee product quality stability, increased chance of impurity pollution, different free alkali content, etc., to achieve a high degree of substitution , good discoloration effect, complete dissolution effect

Inactive Publication Date: 2008-08-06
郭利明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the plant cellulose and fiber threads are alkalized and deliquified in batches, the alkalization is uneven, and the amount of free alkali contained in each batch is different; the degreasing process is not only a degradation process, but also a further alkalization process. The amount of free alkali contained in each batch is different, the temperature of each part and the contact with air are different, and the alkalization varies greatly; the production cycle is long, there are many variable factors, it is difficult to guarantee the stability of product quality, and the chance of impurity pollution increases

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1, the preparation method of water-soluble cotton thread comprises the following steps: (1) get 45 grams of cotton thread with 90% cotton fiber content, add in the mixed solution of 100 milliliters of cyclohexanone and sodium hydroxide aqueous solution, in nitrogen atmosphere, at 45 ℃ React for 30 minutes, then heat up to 75°C and react for 45 minutes. The weight percentage concentration of sodium hydroxide solution is 90%, and the volume ratio of cyclohexanone and sodium hydroxide solution is 5: 1; (2) discharge nitrogen, add 130 milliliters of hypochlorite 15 grams of cyclohexanone acetate solution and LTC leveling agent (produced by Shanghai Xida Chemical Co., Ltd.). React at 75°C for 45 minutes, and the volume ratio of cyclohexanone to hypochloroacetic acid is 5.5:2; (3) deliquoring and drying to obtain water-soluble cotton thread.

Embodiment 2

[0016] Embodiment 2, the preparation method of water-soluble cotton thread, comprises the following steps: (1) get 50 grams of cotton thread with cotton fiber content 92%, add in the mixed solution of 90 milliliters of cyclohexanone and sodium hydroxide aqueous solution, in nitrogen atmosphere, at 40 ℃ React for 25 minutes, then heat up to 70°C and react for 40 minutes. The weight percentage concentration of sodium hydroxide solution is 90%, and the volume ratio of cyclohexanone and sodium hydroxide solution is 4.5: 1; (2) discharge nitrogen, add 120 milliliters of hypochlorite Cyclohexanone acetate solution and 10 grams of LTC leveling agent (produced by Shanghai Xida Chemical Co., Ltd.), reacted for 40 minutes at 70 ° C, and the volume ratio of cyclohexanone and hypochloroacetic acid was 5.0: 2; (3) deliquoring and drying Get water soluble cotton fiber.

Embodiment 3

[0017] Embodiment 3, the preparation method of water-soluble cotton thread, comprises the following steps: (1) get 55 grams of cotton thread with cotton fiber content 95%, add in the mixed solution of 80 milliliters of cyclohexanone and sodium hydroxide aqueous solution, in nitrogen atmosphere, at 35 ℃ React for 20 minutes, then heat up to 65°C and react for 35 minutes. The weight percentage concentration of sodium hydroxide solution is 90%, and the volume ratio of cyclohexanone and sodium hydroxide solution is 4.5:1; (2) discharge nitrogen, add 110 milliliters of trichloro Cyclohexanone acetate solution was reacted at 65° C. for 35 minutes, and the volume ratio of cyclohexanone to trichloroacetic acid was 4.5:2; (3) deliquored and dried to obtain water-soluble cotton fibers.

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Abstract

Disclosed is a process for preparing water soluble plant cellulose comprising the steps of, charging plant cellulose into the mixed liquid of cyclohexanone and the water solution of sodium hydroxide or potassium hydroxide, alkalizing in inert atmosphere, etherifying in chloroacetic cyclohexanone, molting fluid and drying, bundling the water soluble plant cellulose onto cathode plate in the electrolyzation groove for electrolytic deposition, finally molting fluid and drying.

Description

technical field [0001] The invention belongs to the technical field of water-soluble plant cellulose or fiber thread preparation. Background technique [0002] Water-soluble plant cellulose and fiber thread have the characteristics of being able to dissolve quickly in water, and have no toxic side effects after dissolution, and can be discharged directly without causing any pollution to the environment, and have a wide range of application values. The existing water-soluble plant cellulose and fiber yarn production generally adopts step-by-step and segmented intermittent production methods, that is, the plant cellulose and fiber yarn are put into a certain concentration of caustic soda solution to heat up and soak, and then the free lye is removed. , placed for more than 20 hours, after complete degreasing, then crushed and put into an etherification kettle, adding an appropriate amount of monochloroacetic acid to raise the temperature and pressurize for etherification. Aft...

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 Patents(China)
IPC IPC(8): D02G3/02D01C1/00D06P5/00
Inventor 郭利明李凤娴
Owner 郭利明
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