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Mulberry cell fiber and preparation method thereof

A fiber and bast fiber technology, applied in the field of regenerated fiber and its preparation, can solve the problems of low breaking strength, poor spinnability, complicated production process, etc., and achieves increased elongation at break, increased fiber length, and improved production rate. Effect

Inactive Publication Date: 2013-08-21
YANCHENG INST OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent application with the Chinese patent application number 95114898.2 discloses a mulberry fiber and its preparation method and application. Skin bast fiber, though the mulberry fiber that this method makes has good antibacterial and antibacterial performance, but manufacturing process is loaded down with trivial details, especially adopts the alkali boiling method, and environmental pollution is bigger, and the mulberry fiber length that makes is relatively long. Short, low breaking strength, poor spinnability, must be blended with cotton
At present, there have been reports that jute, flax and other bast fibers are made into spinning solution and then spun to make hemp viscose or hemp viscose, but there is no mulberry bast fiber that is made into spinning solution and then spun A report on the research of regenerated Sancerre fiber

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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  • Mulberry cell fiber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) the mulberry bast fiber is re-cooked in a steamer, and the cooking condition adopts 20% of the mulberry bast fiber quality in terms of NaOH, the bath ratio is 1: 2, the heating time is 30 minutes, the cooking maximum temperature is 160 ℃, and it is incubated for 150 minutes. Let off the residual liquid after cooking, and beat it in a beater. After 90 minutes of beating time, remove impurities and fine fibers in a desander; bleach with a hydrogen peroxide bleaching tower, use hydrogen peroxide to measure mulberry bast 15% of fiber quality, bleaching temperature 50 ℃, bleaching time 30 minutes, make mulberry pulp.

[0023] 2) Put 20g of mulberry pulp in an impregnation barrel with an impregnating alkali concentration of 120g / L, and soak for 15 minutes at 85°C; press the impregnated mulberry pulp in a net chain press, and the pressing multiple 2.5 times; the pressed mulberry alkali cellulose is yellowed in a yellowing machine, and the yellowing agent is CS 2 , the conc...

Embodiment 2

[0026] 1) mulberry bast fiber is re-cooked in a cooker, and the cooking condition adopts 25% of the mulberry bast fiber quality in terms of NaOH, the bath ratio is 1: 4, the heating time is 45 minutes, the cooking maximum temperature is 180 ° C, and it is incubated for 200 minutes. Drain the residual liquid after cooking, and beat it in a beater. After 100 minutes of beating time, remove impurities and fine fibers in a desander; bleach with a hydrogen peroxide bleaching tower, use hydrogen peroxide to measure mulberry bast 20% of fiber quality, bleaching temperature 80 ℃, bleaching time 60 minutes, made mulberry pulp.

[0027] 2) Put 25g of mulberry pulp in an impregnation barrel with an impregnating alkali concentration of 150g / L, and soak for 30 minutes at 65°C; press the impregnated mulberry pulp in a net chain press, and the pressing multiple 3.5 times; the pressed mulberry alkali cellulose is yellowed in a yellowing machine, and the yellowing agent is CS 2 , the concentr...

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 provides mulberry cell fiber and a preparation method thereof. According to the invention, mulberry bark bast fiber is adopted as a main raw material. The method comprises the processes that: mulberry bark bast fiber is subjected to process treatments such as steaming and bleaching, such that mulberry bark pulp is obtained; the mulberry bark pulp is subjected to process treatments such as soaking, pressing, aging, metering, yellowing, dissolving, filtering, and the like, such that mulberry cell spinning solution is prepared; and the spinning solution is used in spinning, such that mulberry cell fiber is obtained. As a result of testing, the mulberry cell fiber provided by the invention has the intrinsic antibacterial performance, air permeability, and moisture permeability of mulberry bark bast fiber. The mulberry cell fiber has higher breaking strength and breakage elongation than common mulberry fiber, and substantially higher fiber length than common mulberry bark bast fiber. The fiber has dry-state breaking strength higher than 8.10cN / dtex, wet-state breaking strength higher than 6.80cN / dtex, fiber average length of 42.6mm, and an inhibition rate against staphylococcus aureus reaching 79.8%.

Description

technical field [0001] The invention relates to a regenerated fiber and a preparation method thereof, in particular to a Sancer fiber and a preparation method thereof. Background technique [0002] China is a country that grows a large number of mulberry and silkworms in the world. The 400,000 tons of silkworm cocoons in our country are obtained by the hard work of our silkworm farmers in about 8 million mu of mulberry fields. After the mulberry leaves are harvested every season, in order to maintain the nutrients of the mulberry trees and the land It is necessary to prune mulberry trees, namely summer cutting and winter pruning. The waste mulberry branches per mu of mulberry field can produce nearly 100kg of mulberry fiber, and most of the mulberry sticks are discarded at the head of the field. This is the research and development of mulberry fiber. Very favorable conditions are provided. Mulberry fiber belongs to bast fiber, which has excellent hygroscopicity, air permeab...

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): D01C1/02
Inventor 瞿才新王曙东
Owner YANCHENG INST OF IND TECH
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