CN104831517A - Flax biological enzyme degumming low-temperature single oxygen bleaching process - Google Patents
Flax biological enzyme degumming low-temperature single oxygen bleaching process Download PDFInfo
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- CN104831517A CN104831517A CN201510177074.7A CN201510177074A CN104831517A CN 104831517 A CN104831517 A CN 104831517A CN 201510177074 A CN201510177074 A CN 201510177074A CN 104831517 A CN104831517 A CN 104831517A
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Abstract
The present invention relates to a flax biological enzyme degumming low-temperature single oxygen bleaching process, which is mainly used for production of the flax bleaching yarn spinning process. According to the present invention, flax roving is subjected to a biological enzyme degumming treatment, then the roving is sequentially subjected to acid washing with an organic acid, and low-temperature bleaching, and finally the roving is subjected to water washing; and with the process of the present invention, the damage on the fibers is substantially reduced, and the yarn strength is improved.
Description
Technical field
The present invention relates to a kind of bleaching process, especially relate to and a kind of the flax enzyme that flax roving first carries out biological enzyme degumming cold bleaching spinning again to be come unstuck low temperature list oxygen bleaching technique, be mainly used in the production of crofting yarn operation.
Background technology
Tradition flax dioxygen bleaching process, owing to adopting double oxygen bleaching, through twice alkali effect, damages comparatively large to the oxidation of flax fibre and alkali, therefore causes that linen yarn is powerful low and details is high.
Publication date is on October 03rd, 2012, and publication number is in the Chinese patent of 102703994A, discloses the patent of invention that a kind of name is called " technique that flax enzyme and chemical Degumming combine with bleaching ".The flow process of this this technique of patent is: flax fills the pre-acid-water washing of pot, biological enzyme degumming, bleaching pre-treatment, washing, oxidation bleaching, washing, neutralization &washing, dehydration, soft treatment, dewaters and oven dry of shaking up.Although this patent can improve whiteness and the flexibility of fiber, complex process, the time is long, damage comparatively large, therefore it still exists above-mentioned defect to the oxidation of flax fibre and alkali.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and provide a kind of and first carry out biological enzyme degumming low temperature list oxygen bleaching technique of carrying out a low temperature oxygen bleaching again thus the flax enzyme improving yarn strength and row yielding is come unstuck.
The present invention's adopted technical scheme that solves the problem is: this flax enzyme concrete steps of low temperature list oxygen bleaching process application in crofting yarn operation is produced of coming unstuck are.
(1) biological enzyme degumming process: bath raio 1:7, adopts infiltration scouring agent LFD and biology enzyme ATM, under 50 DEG C of conditions, processes 60 minutes, then carries out a normal temperature washing.
(2) machine acid pickling: bath raio 1:7, adopt infiltration scouring agent LFD and organic acid A001, pH value is 5-6, processes 45 minutes, then carry out twice normal temperature washing under 60 DEG C of conditions.
(3) cold bleaching: bath raio 1:7, adopt low temperature hydrogen peroxide bleaching stabilizer LTP, 27.5% hydrogen peroxide and 32% liquid caustic soda, tune pH value is 10-11,60-70 minute is processed under 85 DEG C of conditions, carry out the hot water wash of 60 DEG C again, a normal temperature washing, then acetic acid neutralization &washing is clean.
(4) washing is clean.
As preferably, in step of the present invention (1), the working concentration of infiltration scouring agent LFD is 0.25g/L, and the working concentration of biology enzyme ATM is 2g/L.
As preferably, in step of the present invention (2), the working concentration of infiltration scouring agent LFD is 0.25g/L, and the working concentration of organic acid A001 is 2g/L.
As preferably, in step of the present invention (3), the working concentration of low temperature hydrogen peroxide bleaching stabilizer LTP is 3g/L, and the working concentration of 27.5% hydrogen peroxide is 20g/L, and the working concentration of 32% liquid caustic soda is 7.5g/L.
As preferably, in step of the present invention (4), washing is 10 minutes.
The present invention compared with prior art, has the following advantages and effect: 1. the time is short, shortens the boiling and bleaching process time owing to adopting an oxygen bleaching; 2. steam consumption is low, adopts low temperature oxygen bleaching, is reduced to 85 DEG C and for once oxygen bleaching from 95 DEG C, therefore steam consumption reduces obviously; 3. fiber strength is good, owing to have employed biological enzyme degumming, organic acid pickling and cold bleaching, greatly reduces, and improve the brute force of yarn to the damage of fiber.
Detailed description of the invention
Below by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment.
In the present embodiment, the flax roving sub-drift bleaching process that comes unstuck adopts the sub-bleaching process of flax soda boiling high temperature of the present invention, and detailed process is as follows.
(1) first flax roving is carried out biological enzyme degumming process, to slough a part of colloid.
(2) then rove is carried out organic acid pickling, adopt organic acid can drop to minimum to the damage of fiber.
(3) again rove being carried out cold bleaching, for making hydrogen peroxide stablize at low-temp reaction, using low temperature hydrogen peroxide bleaching stabilizer when oxygen bleaching.
(4) finally by clean for rove washing.
In the embodiment of the present invention biological enzyme degumming step in, bath raio 1:7, infiltration scouring agent LFD:0.25g/L, biology enzyme ATM (refined fortune): 2g/L. in 50 DEG C of process 60 minutes.Then 1 time normal temperature washing.
In acid pickling step in the embodiment of the present invention, bath raio 1:7, infiltration scouring agent LFD:0.25g/L, organic acid A001 (refined fortune): 2g/L.PH=5-6. in 60 DEG C of process 45 minutes.Then 2 times normal temperature washings.
In cold bleaching step in the embodiment of the present invention, bath raio 1:7, low temperature hydrogen peroxide bleaching stabilizer LTP:3g/L, 27.5% hydrogen peroxide: 20g/L, 32% liquid caustic soda: 7.5g/L adjusts PH=10-11. in 85 DEG C of process 60-70 minute.Then 1 time hot water 60 DEG C is washed, 1 time normal temperature washing, then acetic acid neutralization &washing is clean.
Actual for L39Nm, parameter is as follows.
1. wash: normal temperature 10 points.
2. pre-treatment: ATM:15kg, LFD:2kg, 50 DEG C × 60 points; ATM adds when being raised to 50 DEG C
3. wash: normal temperature 10 points.
4. acid treatment: A001:15kg, LFD:2kg, 60 DEG C × 45 points.
5. wash: normal temperature 10 points.
6. wash: normal temperature 10 points.
7. oxygen bleaching: liquid caustic soda: 56kg, LTP:24kg, H2O2:150kg, 85 DEG C × 60 points; First add liquid caustic soda and LTP, be warming up to 50 DEG C and add hydrogen peroxide, then rise to 85 DEG C with 1.5 DEG C/minute, be incubated 60 points.
8. wash: 60 DEG C, 10 points.
9. wash: normal temperature 10 points.
10. neutralize: HAC:4kg, 40 DEG C × 15 points.
11. washings: 10 points.
In the present embodiment, the manufacturer permeating scouring agent LFD and low temperature hydrogen peroxide bleaching stabilizer LTP is Yayun Texile Agents Co., Ltd., Shanghai.
By foregoing description, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to structure example of the present invention explanation.The equivalence change that structure, feature and the principle of all foundations described in inventional idea of the present invention are done or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (5)
1. flax enzyme is come unstuck a low temperature list oxygen bleaching technique, it is characterized in that: be mainly used in crofting yarn operation produce in concrete steps be:
(1) biological enzyme degumming process: bath raio 1:7, adopts infiltration scouring agent LFD and biology enzyme ATM, under 50 DEG C of conditions, processes 60 minutes, then carries out a normal temperature washing;
(2) machine acid pickling: bath raio 1:7, adopt infiltration scouring agent LFD and organic acid A001, pH value is 5-6, processes 45 minutes, then carry out twice normal temperature washing under 60 DEG C of conditions;
(3) cold bleaching: bath raio 1:7, adopt low temperature hydrogen peroxide bleaching stabilizer LTP, 27.5% hydrogen peroxide and 32% liquid caustic soda, tune pH value is 10-11,60-70 minute is processed under 85 DEG C of conditions, carry out the hot water wash of 60 DEG C again, a normal temperature washing, then acetic acid neutralization &washing is clean;
(4) washing is clean.
2. flax enzyme according to claim 1 is come unstuck low temperature list oxygen bleaching technique, it is characterized in that: in described step (1), the working concentration of infiltration scouring agent LFD is 0.25g/L, and the working concentration of biology enzyme ATM is 2g/L.
3. flax enzyme according to claim 1 is come unstuck low temperature list oxygen bleaching technique, it is characterized in that: in described step (2), the working concentration of infiltration scouring agent LFD is 0.25g/L, and the working concentration of organic acid A001 is 2g/L.
4. flax enzyme according to claim 1 is come unstuck low temperature list oxygen bleaching technique, it is characterized in that: in described step (3), the working concentration of low temperature hydrogen peroxide bleaching stabilizer LTP is 3g/L, the working concentration of 27.5% hydrogen peroxide is 20g/L, and the working concentration of 32% liquid caustic soda is 7.5g/L.
5. flax enzyme according to claim 1 is come unstuck low temperature list oxygen bleaching technique, it is characterized in that: in described step (4), washing is 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177074.7A CN104831517A (en) | 2015-04-15 | 2015-04-15 | Flax biological enzyme degumming low-temperature single oxygen bleaching process |
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| CN201510177074.7A CN104831517A (en) | 2015-04-15 | 2015-04-15 | Flax biological enzyme degumming low-temperature single oxygen bleaching process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201642A (en) * | 2017-04-10 | 2017-09-26 | 浙江金莱诺纤维有限公司 | Flax high-quality yarn bleaching process |
| CN108221435A (en) * | 2018-01-09 | 2018-06-29 | 黑龙江省延寿县继嘉亚麻纺织有限公司 | Rough linen yarn bio-enzyme boils drift Recipe |
-
2015
- 2015-04-15 CN CN201510177074.7A patent/CN104831517A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 姜生: "亚麻粗纱生物酶脱胶工艺技术探索", 《广西纺织科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107201642A (en) * | 2017-04-10 | 2017-09-26 | 浙江金莱诺纤维有限公司 | Flax high-quality yarn bleaching process |
| CN108221435A (en) * | 2018-01-09 | 2018-06-29 | 黑龙江省延寿县继嘉亚麻纺织有限公司 | Rough linen yarn bio-enzyme boils drift Recipe |
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Application publication date: 20150812 |