Production process for linen bamboo fibers, spinnable linen bamboo fibers and bamboo fiber yarns

A production process, bamboo fiber technology, applied in the chemical post-processing of fibers, fiber treatment, fiber mechanical separation and other directions, can solve the problems of fiber thick, destroy fiber strength, difficult to produce spinnable bamboo fibers, etc., to achieve good toughness, high intensity effect

Active Publication Date: 2011-11-16
ZHEJIANG FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this method has only carried out sample experiment, the bamboo fiber of making can't be used for weaving, more can't carry out industrialization application promotion
[0005] In 2003, Yao Wenbin of Zhejiang Forestry College etc. applied for "a kind of preparation method of bamboo fiber" patent (patent authorization announcement number: CN100422396), produced products such as thick bamboo fiber, semi-finish bamboo fiber, refined bamboo fiber, but even Refined bamboo fiber, its fineness and uniformity are difficult to compare with cotton, hemp and other fibers, and basically cannot be used as textile fibers in the ordinary sense.
But so far these patents are also difficult to produce spinnable bamboo fiber, as yet no bamboo fiber yarn has been seen.
[0007] These above-mentioned production methods do not aim at the particularity of the physical and chemical properties of bamboo and fully consider the non-uniformity characteristics of bamboo. They try to use the bamboo tow obtained after fiber opening to directly produce bamboo fiber through the scouring process at one time. The tow is crushed or broken, or the strength of the fiber is destroyed by chemical agents, resulting in poor quality of the bamboo fiber produced, the fiber is thick, short, hard, and its uniformity, length, fineness, strength and other indicators cannot reach According to the requirements of textile fibers, only low value-added products such as bamboo fiber decorative boards can be produced

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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  • Production process for linen bamboo fibers, spinnable linen bamboo fibers and bamboo fiber yarns
  • Production process for linen bamboo fibers, spinnable linen bamboo fibers and bamboo fiber yarns
  • Production process for linen bamboo fibers, spinnable linen bamboo fibers and bamboo fiber yarns

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0058] Such as figure 1 Shown, a kind of production technology of hemp-like bamboo fiber comprises the steps:

[0059] Step 1: Material selection: take 10-month-old Cizhu and stack them in the storage warehouse for moisture;

[0060] Step 2: Cutting, splitting or splitting: After cutting the bamboo, use a bamboo breaker to split and flatten the bamboo;

[0061] Step 3: Pre-softening: Put the bamboo slices split and flattened by the bamboo breaker into No. 1 softening pool for soaking, the bath ratio of softening liquid is 1:5, the concentration of sodium hydroxide: 0.25%, the concentration of sodium carbonate: 0.5%, water glass Concentration: 0.125%, time: 30 days;

[0062] Step 4: Secondary softening: add ammonia water to the No. 2 softening tank, and the ammonia water accounts for 1% of the total softening liquid concentration, and then add the pre-softened bamboo chips into the No. 2 round tank for secondary softening; time 6 hours ;

[0063] Step 5: Pre-oxygen bleachin...

no. 2 example

[0070] Such as figure 2 Shown, a kind of production technology of spinnable hemp-shaped bamboo fiber comprises the steps:

[0071] Step 1: Material selection: take 2-year-old moso bamboo and stack it in the storage warehouse to keep moisture;

[0072] Step 2: Cutting, splitting or splitting: After cutting the bamboo, use a bamboo bumper or a bamboo splitter to split it into pieces, then put the green bamboo and yellow bamboo into the softening pool for soaking;

[0073] Step 3-step 10 is identical with the first embodiment;

[0074] Step 11: Send the hemp-shaped bamboo fiber into the fiber unwinding machine to make strip-shaped bamboo fiber ingots.

[0075] Step 12: Send hemp-shaped bamboo fiber ingots into the intelligent cooking pot;

[0076] Step 13: Pre-degumming: bath ratio is 1:80, sodium hydroxide concentration: 5%, sodium carbonate concentration: 10%, water glass concentration: 1%, temperature: 100°C, after reaching the set temperature, heat preservation: 30 minute...

no. 3 example

[0089] Such as image 3 Shown, a kind of production technology of bamboo fiber yarn comprises the step 1-step 23 of above-mentioned technical scheme two, also comprises the following steps:

[0090] Step 24: Blending: Add each batch of spinnable hemp-shaped bamboo fibers into the cotton blending box and mix them, then remove powder and impurities, and prepare the fibers for carding into strips;

[0091] Step 25: Carding: using a carding machine to card the bamboo fibers into strips;

[0092] Step 26: drawing: the bamboo fibers combed into strips are combined and drafted 5 times to make pure bamboo fiber strips, and then combined with cotton sliver or ramie, flax strips 5 times to make mixed fiber strips;

[0093] Step 27: Roving: process the mixed fiber strips into 6 non-twisted roving spindles;

[0094] Step 28: Scouring: Put the untwisted roving ingot into the smart scouring pot for scouring to remove impurities.

[0095] Step 29: spinning the mixed fiber sliver obtained ...

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 relates to a production process for linen bamboo fibers, spinnable linen bamboo fibers and bamboo fiber yarns. The production process comprises the following steps: sawing a fresh bamboo into pieces according to a certain length and then respectively soaking the pieces in different biologic softening solutions or cooking the pieces in specially prepared softening solutions at high temperature; after cleaning the pieces, heating and airing the pieces, and then feeding the pieces into a bamboo mechanical splitting system, thereby preparing the linen bamboo fibers; processing the linen bamboo fibers into strip-shaped bamboo fiber spindles; putting the strip-shaped bamboo fiber spindles into an intelligent steam cooker in turn, thereby degumming, bleaching and cleaning the strip-shaped bamboo fiber spindles; after drying the strip-shaped bamboo fiber spindles, opening and removing impurities, thereby acquiring the spinnable linen bamboo fibers; and sending the spinnable linen bamboo fibers into a yarn-forming integrated system, and performing the processes of opening, cotton-blending, carding, drawing and yarn-forming, thereby finally acquiring the bamboo fiber yarns. The bamboo fibers prepared by using the production process are linen, longer, thinner, more uniform and softer. The average fineness of the bamboo fibers can reach 400-600 metric counts. The bamboo fibers can be purely spun or fully blended with fibers such as cotton, linen, and the like.

Description

【Technical field】 [0001] The invention relates to a production process for preparing hemp-shaped bamboo fiber, spinnable hemp-shaped bamboo fiber and bamboo fiber yarn from fresh bamboo through mechanical processing and physical and chemical modification. 【Background technique】 [0002] Bamboo fiber (also known as bamboo fiber) is a pure natural fiber produced by a combination of physical, mechanical and biochemical methods. It has been used in construction materials, paper industry, automobile manufacturing, sewage treatment, daily products and other industries, and has extremely broad application prospects in the textile field. [0003] With the breakthrough of the key technology of bamboo fiber, bamboo fiber is expected to become another "textile natural fiber" after cotton, wool, silk and hemp in the next 2 to 5 years and enter the textile market. At present, many enterprises, research institutions and universities in Zhejiang, Shanghai, Fujian, Jiangxi, Sichuan and oth...

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): D01B1/10D01C1/00
Inventor 姚文斌俞伟鹏张蔚
Owner ZHEJIANG FORESTRY UNIVERSITY
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