CN105239381A - Method for improving dyeing property and mold resistance of hemp fiber - Google Patents
Method for improving dyeing property and mold resistance of hemp fiber Download PDFInfo
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- CN105239381A CN105239381A CN201510690876.8A CN201510690876A CN105239381A CN 105239381 A CN105239381 A CN 105239381A CN 201510690876 A CN201510690876 A CN 201510690876A CN 105239381 A CN105239381 A CN 105239381A
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- fabric
- dyeing
- hemp
- quaternary ammonium
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Abstract
The invention discloses a method for improving the dyeing property and mold resistance of hemp fiber. The method comprises the steps that hemp fiber is placed in silane quaternary ammonium salt cationic modification agent finishing liquid to be finished and then roasted; the roasted fabric is sufficiently washed, residual liquid is removed, drying is finished, and modification is finished; the concentration of the silane quaternary ammonium salt cationic modification agent finishing liquid is 5-20 o.w.f, the bath ratio is 1:20-1:50, the finishing temperature is 40-75 DEG C, and the finishing time is 10-30 min. The dyeing rate of the hemp fiber fabric is improved, and meanwhile the mold resistance of the hemp fiber fabric is good.
Description
Technical field
The present invention relates to Chinese fiber crops silane quaternary ammonium salt cation modifier synthesis technical field, especially relate to the cationic preparation method of silane quaternary ammonium salt and the application of the arrangement in Hemp textile thereof.
Background technology
Chinese fiber crops are one of hemp, in hemp tetrahydrocannabinol (THC) content lower than 0.3% be called Chinese fiber crops.Chinese fiber crops are as natural " king of natural fabric ", and its wearability is excellent.Clothes moisture absorbing and sweat releasing property, good air permeability that Chinese fiber crops are made, hydrofuge is textile 3 times.The performance such as antibacterial and mouldproof, radioresistance, uvioresistant of Chinese fiber crops is all better in addition, and hemp fabric can shield the ultraviolet of more than 95%, and when high temperature not fugitive color.
The morphosis of china-hemp fibers is comparatively smooth, and there is vertical line on surface, and has the horizontal joint as ring, therefore easily diffuse reflection occurs when light irradiates, causes china-hemp fibers gloss poor.China-hemp fibers thickness is uneven, some thick as flax, and thin even than cotton fiber also carefully, cross section is very irregular, has circle, ellipse, polygon etc.The degree of crystallinity of china-hemp fibers is higher than the degree of crystallinity of cotton fiber, and higher degree of crystallinity makes the large molecules align in the inside of china-hemp fibers comparatively tight, intermolecular gap hole is little, and therefore when dyeing, the penetrating power of dyestuff is poor, causes Chinese fiber crops dyeability poor.The degree of orientation of china-hemp fibers is also than the height of cotton fiber, and cause the TENSILE STRENGTH of china-hemp fibers higher, elasticity is poor, and the fabric color fastness after dyeing can be made poor.
Summary of the invention
For the problems referred to above that prior art exists, the applicant provides a kind of method improving china-hemp fibers dyeability and anti-microbial property.The present invention, while improve Hemp textile dye-uptake, makes hemp fabric also possess good antibacterial functions.
Technical scheme of the present invention is as follows:
A kind of method improving china-hemp fibers dyeability and anti-microbial property: Chinese fiber crops are placed in silane quaternary ammonium salt cation modifier dressing liquid and arrange, then cure; Fabric after baking fully is washed, removes raffinate, dry, complete modification.
The concentration of described silane quaternary ammonium salt cation modifier dressing liquid is 5-20o.w.f, bath raio 1:20-1:50.Described arrangement temperature is 40-75 DEG C.Described finishing time is 10-30min.
Modified hemp fabric is started dyeing in REACTIVE DYES dye solution, after dyeing 5-20min, adds NaCl, be then warming up to 40-80 DEG C, then the 5-20min that dyes, add Na afterwards
2cO
3, fixation 20-60min, finally soaps.
Described REACTIVE DYES is active red 3BS, reactive blue K-3R or active emerald green blue KGL.Described REACTIVE DYES concentration is 1-10o.w.f.Described dye bath ratio is 1:30-1:50.Described NaCl concentration is 40-60g/L.Described Na
2cO
3concentration is 20-40g/L.
Described bath raio is mass ratio.
The technique effect that the present invention is useful is:
The present invention is the dyeability and the anti-microbial property that utilize quaternary ammonium salt to china-hemp fibers modification thus improve china-hemp fibers.First adopt quaternary ammonium salt to carry out modification to Chinese fiber crops, adopt REACTIVE DYES to dye to modified china-hemp fibers, find that china-hemp fibers is through modified according to dye-uptake test result, dyeability is improved; Finally carried out antibacterial test to the Chinese fiber crops after before modified, according to AATCC100-2004 standard, modified china-hemp fibers contacts 5min with staphylococcus aureus with Escherichia coli, just the bacterium of inoculation all can be killed.
Detailed description of the invention
Embodiment 1
A kind of method improving china-hemp fibers dyeability and anti-microbial property, Chinese fiber crops are placed in the N that concentration is 10o.w.f, arrange in N-Dimethyl-N-dodecyl aminopropyl triethoxysilane quaternary ammonium salt cationic modifier dressing liquid, arranging temperature is 75 DEG C, finishing time is 10min; bath raio 1:50, then cures; Fabric after baking fully is washed, removes raffinate, dry, complete modification.
Embodiment 2
A kind of method improving china-hemp fibers dyeability and anti-microbial property, Chinese fiber crops are placed in the N that concentration is 20o.w.f, arrange in N-dimethyl-N-octyl group aminopropyl triethoxysilane quaternary ammonium salt cationic modifier dressing liquid, arranging temperature is 40 DEG C, finishing time is 30min; bath raio 1:20, then cures; Fabric after baking fully is washed, removes raffinate, dry, complete modification.
Embodiment 3
A kind of method improving china-hemp fibers dyeability and anti-microbial property, Chinese fiber crops are placed in the N that concentration is 5o.w.f, in N-dimethyl-N-octadecyl base aminopropyl triethoxysilane quaternary ammonium salt-modified dose of dressing liquid, bath raio 1:30, process 30min at 60 DEG C afterwards, then cure; Fabric after baking fully is washed, removes residual night, dry, complete modification.
Application Example 1
Be positioned over by the hemp fabric cation-modified through embodiment 3 in the active red 3BS dye liquor of 5o.w.f, bath raio 1:30,40 DEG C start dyeing, after dyeing 10min, add NaCl40g/L, are then warming up to 60 DEG C, then the 10min that dyes, and add 20g/LNa afterwards
2cO
3, fixation 30min, finally soaps.
Application Example 2
Be positioned over by the hemp fabric cation-modified through embodiment 3 in the reactive blue K-3R dye liquor of 5o.w.f, bath raio 1:40,40 DEG C start dyeing, after dyeing 10min, add NaCl50g/L, are then warming up to 60 DEG C, then the 10min that dyes, and add 20g/LNa afterwards
2cO
3, fixation 30min, finally soaps.
Application Example 3
Be positioned over by the hemp fabric cation-modified through embodiment 3 in the emerald green blue KGL dye liquor of activity of 5o.w.f, bath raio 1:40,40 DEG C start dyeing, after dyeing 10min, add NaCl50g/L, are then warming up to 60 DEG C, then the 10min that dyes, and add 30g/LNa afterwards
2cO
3, fixation 30min, finally soaps.
Application Example 4
Be positioned over by the hemp fabric cation-modified through embodiment 3 in the emerald green blue KGL dye liquor of activity of 1o.w.f, bath raio 1:50,40 DEG C start dyeing, after dyeing 20min, add NaCl60g/L, are then warming up to 80 DEG C, then the 20min that dyes, and add 40g/LNa afterwards
2cO
3, fixation 60min, finally soaps.
Application Example 5
Be positioned over by the hemp fabric cation-modified through embodiment 3 in the emerald green blue KGL dye liquor of activity of 10o.w.f, bath raio 1:30,40 DEG C start dyeing, after dyeing 5min, add NaCl40g/L, are then warming up to 40 DEG C, then the 5min that dyes, and add 20g/LNa afterwards
2cO
3, fixation 20min, finally soaps.
Test case 1: dyeing ability is tested
First prepare blank dye bath, prepare the dye bath with the same concentration of dye bath during dyeing, not salt adding, gets 2ml and be diluted to 50ml in volumetric flask, by the absorbance of spectrophotometer measurement under maximum absorption wavelength.After application examples 1 ~ 3 dyes, get 2ml raffinate, in volumetric flask, be diluted to 50ml, by the absorbance of spectrophotometer measurement under maximum absorption wavelength, dye-uptake calculates according to following formula, and result is as table 1:
A in formula
iit is the absorbance of got raffinate;
A
0it is the absorbance of blank dye bath.
Table 1 application examples 1 ~ 3 dyeing ability
Table 1 test result shows that the dyeing ability of china-hemp fibers to REACTIVE DYES significantly improves after cation-modified, wherein improves maximum to REACTIVE DYES reactive blue K-3R dyeing ability, about 72.73%.
Test case 2: anti-microbial property is tested
According to correction AATCC100-2004 anti-microbial property testing standard, method is tested.
Former china-hemp fibers, modification-alkali treatment china-hemp fibers (C
18-NaOH-china-hemp fibers) (application examples 3 process obtains), inoculated bacteria is staphylococcus aureus (S.aureus) and Escherichia coli (E.ColiO157:H7), and test result is respectively see table 2.
Table 2 china-hemp fibers anti-microbial property test result
Wherein, the concentration of staphylococcus aureus (S.Aureus) is 1.68 × 10
7cUF/sample, 7.22Log, Escherichia coli (E.coliO157:H7) concentration is 1.04 × 10
8cUF/sample, 8.02Log.
Table 2 test data shows, obtained cation-modified fabric has good anti-microbial property, and antimicrobial efficiency is high; After contacting with inoculated bacteria, in 5min, the antibiotic rate of staphylococcus aureus (S.aureus) is reached and all reach 100% with the antibiotic rate of Escherichia coli (E.ColiO157:H7).
Test case 3:
Utilize the flax fibre of embodiment 3 modification, dye through Application Example 1,2,3, carry out strength test contrast with raw ramie fiber, result is as shown in table 3.
Table 3
From the data of table 3, the introducing of ultrasonic technology affects the brute force of flax fibre hardly.
Described in upper is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the spirit and concept in the present invention or associate, all should think and be included within protection scope of the present invention.
Claims (10)
1. improve a method for china-hemp fibers dyeability and anti-microbial property, it is characterized in that: Chinese fiber crops are placed in silane quaternary ammonium salt cation modifier dressing liquid and arrange, then cure; Fabric after baking fully is washed, removes raffinate, dry, complete modification.
2. method according to claim 1, is characterized in that: the concentration of described silane quaternary ammonium salt cation modifier dressing liquid is 5-20o.w.f, bath raio 1:20-1:50.
3. method according to claim 1, is characterized in that: described arrangement temperature is 40-75 DEG C.
4. method according to claim 1, is characterized in that: described finishing time is 10-30min.
5. method according to claim 1, is characterized in that modified hemp fabric to start dyeing in REACTIVE DYES dye solution, after dyeing 5-20min, adds NaCl, be then warming up to 40-80 DEG C, then the 5-20min that dyes, and adds Na afterwards
2cO
3, fixation 20-60min, finally soaps.
6. method according to claim 5, is characterized in that described REACTIVE DYES is active red 3BS, reactive blue K-3R or active emerald green blue KGL.
7. method according to claim 1, is characterized in that described REACTIVE DYES concentration is 1-10o.w.f.
8. method according to claim 1, is characterized in that described dye bath ratio is 1:30-1:50.
9. method according to claim 1, is characterized in that described NaCl concentration is 40-60g/L.
10. method according to claim 1, is characterized in that described Na
2cO
3concentration is 20-40g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510690876.8A CN105239381A (en) | 2015-10-22 | 2015-10-22 | Method for improving dyeing property and mold resistance of hemp fiber |
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| CN201510690876.8A CN105239381A (en) | 2015-10-22 | 2015-10-22 | Method for improving dyeing property and mold resistance of hemp fiber |
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| CN105239381A true CN105239381A (en) | 2016-01-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313272A (en) * | 2017-08-15 | 2017-11-03 | 马鞍山中港服饰有限公司 | A kind of processing method for lifting flaxen fiber dyeing property |
| CN107338643A (en) * | 2016-10-18 | 2017-11-10 | 桐乡守敬应用技术研究院有限公司 | One kind improves the chromatic method of ramee |
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|---|---|---|---|---|
| CN103174038A (en) * | 2013-04-08 | 2013-06-26 | 太仓棨淂服装有限公司 | Hemp jean activated dye dyeing technology |
| CN104233866A (en) * | 2014-09-17 | 2014-12-24 | 华南理工大学 | Method for cation modification and salt-free dyeing of cellulose fiber fabric |
| CN104452283A (en) * | 2014-11-26 | 2015-03-25 | 广东溢达纺织有限公司 | Modified cotton fiber as well as denim-effect fabric and preparation method thereof |
-
2015
- 2015-10-22 CN CN201510690876.8A patent/CN105239381A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103174038A (en) * | 2013-04-08 | 2013-06-26 | 太仓棨淂服装有限公司 | Hemp jean activated dye dyeing technology |
| CN104233866A (en) * | 2014-09-17 | 2014-12-24 | 华南理工大学 | Method for cation modification and salt-free dyeing of cellulose fiber fabric |
| CN104452283A (en) * | 2014-11-26 | 2015-03-25 | 广东溢达纺织有限公司 | Modified cotton fiber as well as denim-effect fabric and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338643A (en) * | 2016-10-18 | 2017-11-10 | 桐乡守敬应用技术研究院有限公司 | One kind improves the chromatic method of ramee |
| CN107313272A (en) * | 2017-08-15 | 2017-11-03 | 马鞍山中港服饰有限公司 | A kind of processing method for lifting flaxen fiber dyeing property |
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| CB03 | Change of inventor or designer information |
Inventor after: Ren Xuehong Inventor after: Li Rong Inventor after: Liu Yang Inventor after: Liu Ying Inventor after: Chen Yuping Inventor before: Ren Xuehong Inventor before: Li Rong Inventor before: Liu Yang Inventor before: Liu Ying |
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Application publication date: 20160113 |