A kind of method for cleaning hemp fiber degumming

Abstract

The invention relates to a clean jute fiber degumming method and belongs to the fields of textiles, biology and environmental protection. The clean jute fiber degumming method comprises a degumming step, wherein in the degumming step, the used cooking liquor is at least one of diluents of a cellulose extracting agent, residual liquor with the solid content of less than or equal to 10% and wastewater in which residues and lignin are removed; the extracting agent is prepared by mixing a solution A and a solution B; the solution A is alkali liquor; the solution B is prepared from crude enzyme fluid and an enzyme stabilizer; and the crude enzyme fluid is clarified crude enzyme fluid prepared by fermenting bacillus subtillis and separating the thallus. According to the method disclosed by the invention, jute fibers are treated in a bath by adopting the crude enzyme fluid and dilute alkali, so that the molecular structure of colloid in the original hemp is greatly changed, the stability of the colloidal complex is severely damaged, alternation and cycle of swelling-modification-colloid removing can be formed, and the aim of rapidly degumming the jute fibers is rapidly achieved under normal temperature conditions.

Description

technical field

[0001] The invention relates to a method for degumming clean hemp fibers, which belongs to the fields of textile, biology and environmental protection. Background technique

[0002] Hemp fiber is an ancient, beautiful fiber with cultural connotation, which occupies an important historical position in the history of natural fiber textile development in my country. The special ultra-fine microporous structure inside the hemp fiber makes it have a strong adsorption capacity, which can absorb harmful substances such as formaldehyde, benzene, toluene, ammonia in the air, and eliminate bad odors. And hemp fiber contains a variety of natural antibacterial trace elements, which can effectively inhibit the breeding of bacteria and mites, and play the role of antibacterial and anti-odor. At the same time, it also has superior air permeability and heat transfer properties. It is cool and pleasant to wear in summer, and comfortable in winter. The automatic constant temp...

Examples

Embodiment 1

[0059] Example 1 Application of Plant Cellulose Extractant in Hemp Fiber Degumming Project

[0060] 1. Preparation of cooking liquid: preparation of cellulose extracting agent—the volume ratio of liquid A to liquid B is 5:1; then dilute with water at a ratio of 1:10 to prepare cooking liquid.

[0061] 2. Process: Combing 5kg of hemp fiber raw material for impurity removal; liquor ratio of 1:10; adding cooking liquid and cooking for 50 minutes; cooking temperature at 80°C; hemp fiber components before and after washing, bleaching, drying, health preservation, and fine carding The test results are shown in Table 1, specifically:

[0062] Step 1: Opening, removing impurities and combing the hemp fiber.

[0063] Step 2: put 5 kg of the preliminarily carded hemp fiber into a cooking pot, and add the prepared cooking liquid; the cooking bath ratio is 1:10; normal pressure, cooking temperature 80°C; cooking time 50min.

[0064] Step 3: send the hemp fiber after cooking into the was...

Embodiment 2

[0067] 1. Cooking liquid preparation: all the cooking raffinate (residue with solid content≦10%) obtained in step 2 in Example 1 is used as a part of the cooking liquid, and according to the liquor ratio requirements, the insufficient part of the cooking liquid is prepared in Example 1 Cooking liquid (that is, the volume ratio of liquid A and liquid B is 5:1; then diluted with water at a ratio of 1:10, the prepared cooking liquid) is supplemented (the newly prepared cooking liquid accounts for 30% of the total cooking liquid) .

[0068] 2. The process is the same as in Example 1, and the hemp fiber component test results are shown in Table 1.

Embodiment 3

[0070] 1. Cooking liquid preparation: all the cooking raffinate (residue with solid content≦10%) obtained in step 2 in Example 2 is used as a part of the cooking liquid, and according to the liquor ratio requirements, the insufficient part of the cooking liquid is prepared in Example 1 The cooking liquid is replenished (the newly prepared cooking liquid accounts for 30% of the whole cooking liquid).

[0071] 2. The process is the same as in Example 1, and the hemp fiber component test results are shown in Table 1.

[0072] See Table 1 for the degumming effect of the hemp fibers cooked in Example 1, Example 2, and Example 3—that is, fiber index detection (cellulose, hemicellulose, pectin, lignin, fineness, and strength). It can be seen from Table 1 that the cellulose content is greatly increased; lignin and pectin are effectively reduced; the fineness and strength meet the requirements of spinnable high-count blended yarn. The cooking liquor developed by this patent can be wel...

technical field

[0001] The invention relates to a method for degumming clean hemp fibers, which belongs to the fields of textile, biology and environmental protection. Background technique

[0002] Hemp fiber is an ancient, beautiful fiber with cultural connotation, which occupies an important historical position in the history of natural fiber textile development in my country. The special ultra-fine microporous structure inside the hemp fiber makes it have a strong adsorption capacity, which can absorb harmful substances such as formaldehyde, benzene, toluene, ammonia in the air, and eliminate bad odors. And hemp fiber contains a variety of natural antibacterial trace elements, which can effectively inhibit the breeding of bacteria and mites, and play the role of antibacterial and anti-odor. At the same time, it also has superior air permeability and heat transfer properties. It is cool and pleasant to wear in summer, and comfortable in winter. The automatic constant temp...

Examples

Embodiment 1

[0059] Example 1 Application of Plant Cellulose Extractant in Hemp Fiber Degumming Project

[0060] 1. Preparation of cooking liquid: preparation of cellulose extracting agent—the volume ratio of liquid A to liquid B is 5:1; then dilute with water at a ratio of 1:10 to prepare cooking liquid.

[0061] 2. Process: Combing 5kg of hemp fiber raw material for impurity removal; liquor ratio of 1:10; adding cooking liquid and cooking for 50 minutes; cooking temperature at 80°C; hemp fiber components before and after washing, bleaching, drying, health preservation, and fine carding The test results are shown in Table 1, specifically:

[0062] Step 1: Opening, removing impurities and combing the hemp fiber.

[0063] Step 2: put 5 kg of the preliminarily carded hemp fiber into a cooking pot, and add the prepared cooking liquid; the cooking bath ratio is 1:10; normal pressure, cooking temperature 80°C; cooking time 50min.

[0064] Step 3: send the hemp fiber after cooking into the was...

Embodiment 2

[0067] 1. Cooking liquid preparation: all the cooking raffinate (residue with solid content≦10%) obtained in step 2 in Example 1 is used as a part of the cooking liquid, and according to the liquor ratio requirements, the insufficient part of the cooking liquid is prepared in Example 1 Cooking liquid (that is, the volume ratio of liquid A and liquid B is 5:1; then diluted with water at a ratio of 1:10, the prepared cooking liquid) is supplemented (the newly prepared cooking liquid accounts for 30% of the total cooking liquid) .

[0068] 2. The process is the same as in Example 1, and the hemp fiber component test results are shown in Table 1.

Embodiment 3

[0070] 1. Cooking liquid preparation: all the cooking raffinate (residue with solid content≦10%) obtained in step 2 in Example 2 is used as a part of the cooking liquid, and according to the liquor ratio requirements, the insufficient part of the cooking liquid is prepared in Example 1 The cooking liquid is replenished (the newly prepared cooking liquid accounts for 30% of the whole cooking liquid).

[0071] 2. The process is the same as in Example 1, and the hemp fiber component test results are shown in Table 1.

[0072] See Table 1 for the degumming effect of the hemp fibers cooked in Example 1, Example 2, and Example 3—that is, fiber index detection (cellulose, hemicellulose, pectin, lignin, fineness, and strength). It can be seen from Table 1 that the cellulose content is greatly increased; lignin and pectin are effectively reduced; the fineness and strength meet the requirements of spinnable high-count blended yarn. The cooking liquor developed by this patent can be wel...

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