CN103572379B - A kind of method utilizing cotton stalk bark to prepare natural fabric - Google Patents
A kind of method utilizing cotton stalk bark to prepare natural fabric Download PDFInfo
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- CN103572379B CN103572379B CN201310578078.7A CN201310578078A CN103572379B CN 103572379 B CN103572379 B CN 103572379B CN 201310578078 A CN201310578078 A CN 201310578078A CN 103572379 B CN103572379 B CN 103572379B
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 163
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000004744 fabric Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 102000004190 Enzymes Human genes 0.000 claims abstract description 19
- 108090000790 Enzymes Proteins 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 32
- 239000000084 colloidal system Substances 0.000 claims description 8
- -1 add softener Substances 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 229920000297 Rayon Polymers 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 238000005474 detonation Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 8
- 229920002678 cellulose Polymers 0.000 abstract description 6
- 239000001913 cellulose Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 241000219146 Gossypium Species 0.000 description 134
- 239000002994 raw material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 240000000047 Gossypium barbadense Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000009429 Gossypium barbadense Nutrition 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The present invention relates to a kind of method utilizing cotton stalk bark to prepare natural fabric, it is characterized in that: comprise following operation: successively through cotton stalk peeling operation, pretreatment process, biological abstraction process, dodge quick-fried operation, hot water wash operation, softening step, drying process, obtained cotton stalk bark natural fabric.Described biological abstraction process, adds water, enzyme association AE, DT, OK, under the condition of 70-95 DEG C, reacts 1-2 hour in the cotton stalk bark that pretreatment process is handled well.This preparation technology solves a difficult problem for cotton stalk not easily peeling, the biological extraction process of enzyme association adds dodges quick-fried technology, eliminate the most impurity in cotton stalk bark surface, purified cellulose, obtained cotton stalk bark natural fabric, has excellent performance, dry strength > 3.12cN/dtex, wet strength > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
Description
Technical field
The invention belongs to the method preparing natural fabric by the bast part of straw, belonging to especially with cotton stalk bark is the method that natural fabric prepared by raw material.
Background technology
China's cotton region wide scope, according to the requirement of cotton to ecological condition, in conjunction with cotton production feature, and cotton region distribution situation, social and economic condition and plant cotton history, the whole nation is divided into three cotton regions: cotton region, the middle and lower reach of Yangtze River, middle and lower reaches cotton region, the Yellow River and Xinjiang cotton.
Cotton region, the middle and lower reach of Yangtze River: comprise Shanghai, Zhejiang, Jiangsu, Hubei, Anhui, Sichuan, Jiangxi, Hunan 8 provinces and cities, in recent years sown areas of cotton steady in have and subtract.
Middle and lower reaches cotton region, the Yellow River: comprise Henan, Hebei, Shandong, Shanxi, Shaanxi, provinces and regions, Liaoning 6, sown areas of cotton are steadily increasing in recent years.
Xinjiang cotton: comprise Xinjiang and Hexi Corridor one band, sown areas of cotton are steadily increasing.From planting area, Xinjiang has begun to take shape 3 cotton growing areas, i.e. cotton region, South Sinkiang, Xinjiang Northern Cotton Regions and eastern boundary cotton region.Cotton region, South Sinkiang is the main producing region of cotton in Xinjiang, and its output of cotton accounts for that 80%, Ye Shi China of Xinjiang cotton output is optimum plants cotton area, is the production base of long-staple cotton.Next is North SinKiang, is eastern boundary again.Cotton in Xinjiang ranks first in the country for continuous 8 years in total product, per unit area yield, occupancy volume per person, investigation mission outside the city or town amount etc.
Except three large main product cotton regions, also there is dispersion plantation on the ground such as capital, Tianjin, Gansu, Guangxi, Yunnan, but its output adds up to and accounts for national cotton and always produce less than 1%.
Cotton stalk after cotton harvesting is a kind of purposes precious resources widely.The general processing method of current cotton stalk: one is direct chopping and returning, though this way can increase the fertilizer of soil, can increase the incidence probability of cotton diseases and insect pests in the coming year; Two is burn cotton stalk, and this is not only a kind of waste, and serious environment pollution; Three is that results cotton stalk is used as biomass power generation or production low level corrugated paper, and added value of product is very low.
There is a serious shortage in the supply for China's timber resources, find and make full use of various generation wood resource imperative.Cotton stalk is one of Main Agricultural residue, and it or short-period reproducible raw material resources, China is again second largest Chan Mian state in the world, plant territory, cotton region very extensive, cotton stalk resource is very abundant, and cotton area about 8,100 ten thousand mu is planted by China in 2011, output of cotton more than 650 ten thousand tons, cotton stalk output can reach more than 2,600 ten thousand tons (ratio is 1:4, namely produces one ton of cotton and will remain 4 tons of cotton stalks), and cotton stalk bark output is about 6,500,000 tons (every 4 tons of cotton stalks can produce cotton stalk bark 1 ton).
The average length of cotton stalk bast fiber can reach 1.8 ~ 2.2 ㎜, average diameter is 18 ~ 22um, and average length 0.6 ~ 0.85 ㎜ of its wood fibre, average diameter is 14 ~ 18um, although containing abundant cellulose in cotton stalk bark, but but do not adopt at present cotton stalk bark be raw material to produce maturation method and the technique of natural fabric, therefore, cotton stalk bark fibre exploitation is become a kind of new natural fabric raw material and becomes people's urgent problem.
Summary of the invention
Technical problem to be solved by this invention there is provided a kind of method adopting cotton stalk bark to prepare natural fabric, can be that the high-quality natural fabric with premium properties produced easily by raw material with cotton stalk bark by the method in the present invention, solve the problem that current cotton stalk utilization rate is low, added value is low.
The technical scheme of technical solution problem of the present invention is:
A kind of method utilizing cotton stalk bark to prepare natural fabric, it is characterized in that: comprise following operation: successively through cotton stalk peeling operation, pretreatment process, biological abstraction process, dodge quick-fried operation, hot water wash operation, softening step, drying process, obtained cotton stalk bark natural fabric.
Below the further improvement to technique scheme:
Described biological abstraction process, adds water, enzyme association AE, DT, OK, under the condition of 70-95 DEG C, reacts 1-2 hour in the cotton stalk bark that pretreatment process is handled well.
The weight ratio 1:7-10:0.005-0.015:0.002-0.005:0.008-0.015 of described cotton stalk bark, water, enzyme association AE, DT, OK.
Described cotton stalk peeling operation is that the cotton stalk of results is carried out mechanical barking process, and through the cotton stalk bark of mechanical barking, its surperficial colloid clearance is at 60-80%, and whole strain cotton stalk bark retention rate is at 70-90%.
Described pretreatment process: the spent lye adding 9-12% in cotton stalk bark, 4-5 hour is soaked under normal temperature, wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:8-10 again, and described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing.
Dodging detonation pressure power in the quick-fried operation of described sudden strain of a muscle is 1.0-1.4Mpa.
Described hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 80-90 DEG C about.
Described softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, reaction 4-5 hour, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.05-0.10:10-15.
Described drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%.
The cotton stalk bark fibre that a kind of method utilizing cotton stalk bark to prepare natural fabric is obtained, its performance indications of described fiber: dry strong > 3.12cN/dtex, wet strong > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
The present invention adopts above technical scheme, has the following advantages: adopt cotton stalk peeling technology to solve a difficult problem for cotton stalk not easily peeling; The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, eliminates the most impurity in cotton stalk bark surface, cellulose of having purified.
Obtained cotton stalk bark natural fabric, there is excellent physical and mechanical properties: dry strength > 3.12cN/dtex, wet strength > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail.
embodiment 1
Adopt cotton stalk bark to prepare a method for natural fabric, cotton stalk bark extracts through preliminary treatment, biology, dodges quick-fried, hot water wash, softness, drying process, obtains cotton stalk bark natural fabric:
A, cotton stalk peeling operation: adopt the cotton stalk bark that cotton stalk peeling equipment is obtained, its surperficial colloid clearance 60%, whole strain cotton stalk bark retention rate 70%.
B, pretreatment process: the spent lye adding mass concentration 10% in cotton stalk bark, described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing, soak 5 hours under normal temperature, then wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:10;
C, biological abstraction process: in the cotton stalk bark that pretreatment process is handled well, add water, enzyme association AE, DT, OK, react 1 hour under the condition of 95 DEG C, the weight ratio 1:7:0.015:0.002:0.01 of cotton stalk bark, water, enzyme association AE, DT, OK, described enzyme association visits company by Wu Hanke and produces;
D, dodge quick-fried operation: by dodging quick-fried operation, removing sticks to the colloid of fiber surface, and make degumming effect more thorough, dodging detonation pressure power is 1.2Mpa;
E, hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 80 DEG C about.
F, softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, react 4 hours, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.05:10;
G, drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%, obtained cotton stalk bark natural fabric.
The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, and eliminate the most impurity in cotton stalk bark surface, cellulose of having purified, makes the cotton stalk bark fibre obtained have excellent physical and mechanical properties.
After testing, by the performance indications of embodiment 1 gained cotton stalk bark natural fabric as following table:
| Project | Index |
| Dry strength (cN/dtex) | 3.12 |
| Wet strength (cN/dtex) | 1.98 |
| Wet modulus (cN/dtex) | 0.51 |
| The dry strong coefficient of variation (%) | 12.5 |
embodiment 2
Adopt cotton stalk bark to prepare a method for natural fabric, cotton stalk bark extracts through preliminary treatment, biology, dodges quick-fried, hot water wash, softness, drying process, obtains cotton stalk bark natural fabric:
A, cotton stalk peeling operation: adopt the cotton stalk bark that cotton stalk peeling equipment is obtained, its surperficial colloid clearance 70%, whole strain cotton stalk bark retention rate 80%;
B, pretreatment process: the spent lye adding mass concentration 9% in cotton stalk bark, described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing, soak 4 hours under normal temperature, then wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:8;
C, biological abstraction process: in the cotton stalk bark that pretreatment process is handled well, add water, enzyme association AE, DT, OK, react 1.5 hours under the condition of 80 DEG C, the weight ratio 1:10:0.010:0.003:0.015 of cotton stalk bark, water, enzyme association AE, DT, OK, described enzyme association visits company by Wu Hanke and produces;
D, dodge quick-fried operation: by dodging quick-fried operation, removing sticks to the colloid of fiber surface, and make degumming effect more thorough, dodging detonation pressure power is 1.0Mpa;
E, hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 85 DEG C about.
F, softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, react 4.5 hours, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.08:13;
G, drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%, obtained cotton stalk bark natural fabric.
The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, and eliminate the most impurity in cotton stalk bark surface, cellulose of having purified, makes the cotton stalk bark fibre obtained have excellent physical and mechanical properties.
After testing, by the performance indications of embodiment 2 gained cotton stalk bark natural fabric as following table:
| Project | Index |
| Dry strength (cN/dtex) | 3.22 |
| Wet strength (cN/dtex) | 1.79 |
| Wet modulus (cN/dtex) | 0.57 |
| The dry strong coefficient of variation (%) | 15.5 |
embodiment 3
Adopt cotton stalk bark to prepare a method for natural fabric, cotton stalk bark extracts through preliminary treatment, biology, dodges quick-fried, hot water wash, softness, drying process, obtains cotton stalk bark natural fabric;
A, cotton stalk peeling operation: adopt the cotton stalk bark that cotton stalk peeling equipment is obtained, its surperficial colloid clearance 80%, whole strain cotton stalk bark retention rate 90%;
B, pretreatment process: in cotton stalk bark, add the spent lye that mass concentration is 12%, described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing, soak 4.5 hours under normal temperature, then wash with water to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:9;
C, biological abstraction process: in the cotton stalk bark that pretreatment process is handled well, add water, enzyme association AE, DT, OK, react 2 hours under the condition of 70 DEG C, the weight ratio 1:10:0.005:0.005:0.008 of cotton stalk bark, water, enzyme association AE, DT, OK, described enzyme association visits company by Wu Hanke and produces;
D, dodge quick-fried operation: by dodging quick-fried operation, removing sticks to the colloid of fiber surface, and make degumming effect more thorough, dodging detonation pressure power is 1.4Mpa;
E, hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 90 DEG C about.
F, softening step: add softener, water in the cotton stalk bark fibre washed by hot water, under the condition of room temperature, react 5 hours, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.10:15;
G, drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%, obtained cotton stalk bark natural fabric.
The biological abstraction process of enzyme association adds the quick-fried technology of sudden strain of a muscle, and eliminate the most impurity in cotton stalk bark surface, cellulose of having purified, makes the cotton stalk bark fibre obtained have excellent physical and mechanical properties.
After testing, the performance indications of embodiment 3 gained cotton stalk bark natural fabric are as following table:
| Project | Index |
| Dry strength (cN/dtex) | 3.31 |
| Wet strength (cN/dtex) | 2.08 |
| Wet modulus (cN/dtex) | 0.48 |
| The dry strong coefficient of variation (%) | 14.6 |
Claims (7)
1. the method utilizing cotton stalk bark to prepare natural fabric, it is characterized in that: comprise following operation: successively through cotton stalk peeling operation, pretreatment process, biological abstraction process, dodge quick-fried operation, hot water wash operation, softening step, drying process, obtained cotton stalk bark natural fabric;
Described biological abstraction process, adds water, enzyme association AE, DT, OK, under the condition of 70-95 DEG C, reacts 1-2 hour in the cotton stalk bark that pretreatment process is handled well;
The weight ratio 1:7-10:0.005-0.015:0.002-0.005:0.008-0.015 of described cotton stalk bark, water, enzyme association AE, DT, OK;
Described cotton stalk peeling operation is that the cotton stalk of results is carried out mechanical barking process, and through the cotton stalk bark of mechanical barking, its surperficial colloid clearance is at 60-80%, and whole strain cotton stalk bark retention rate is at 70-90%.
2. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, it is characterized in that: described pretreatment process: the spent lye adding 9-12% in cotton stalk bark, 4-5 hour is soaked under normal temperature, wash with water again to neutrality, the weight ratio of cotton stalk bark and spent lye is 1:8-10, and described spent lye is the black liquor after Cotton Pulp boiling or the yellow liquor after viscose squeezing.
3. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, is characterized in that: dodging detonation pressure power in the quick-fried operation of described sudden strain of a muscle is 1.0-1.4Mpa.
4. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, is characterized in that: described hot water wash operation: by dodge quick-fried after cotton stalk bark fibre adopt hot water injection's pH value to 7 of 80-90 DEG C about.
5. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, it is characterized in that: described softening step: in the cotton stalk bark fibre washed by hot water, add softener, water, under the condition of room temperature, reaction 4-5 hour, the weight ratio of cotton stalk bark fibre, softener, water is 1:0.05-0.10:10-15.
6. a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1, is characterized in that: described drying process: the cotton stalk bark fibre handled well by softening step is dried to moisture content and is less than 10%.
7. the cotton stalk bark fibre that a kind of method utilizing cotton stalk bark to prepare natural fabric according to claim 1 is obtained, it is characterized in that: its performance indications of described fiber: dry strength > 3.12cN/dtex, wet strength > 1.79cN/dtex, wet modulus > 0.48cN/dtex, dry strong coefficient of variation < 15.5%.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104047063B (en) * | 2014-06-25 | 2017-01-04 | 江南大学 | A kind of steam explosion and alkali process the method for the preparation weaving cotton stalk bark fiber that combines |
| CN104047062A (en) * | 2014-06-25 | 2014-09-17 | 江南大学 | Method for preparing cotton stalk skin fiber through steam explosion and laccase combined treatment |
| CN104070683A (en) * | 2014-06-26 | 2014-10-01 | 江南大学 | Method for preparing light cotton stalk hide fiber/polypropylene composite material |
| CN104975356A (en) * | 2015-06-24 | 2015-10-14 | 西南大学 | Mulberry bark degumming method |
| CN106319640B (en) * | 2016-10-27 | 2018-03-27 | 青岛大学 | A kind of clean preparation method of degummed ramie fiber |
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2013
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