CN104878630A - Dyeing process of cotton-knitted fabrics - Google Patents
Dyeing process of cotton-knitted fabrics Download PDFInfo
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- CN104878630A CN104878630A CN201510299142.7A CN201510299142A CN104878630A CN 104878630 A CN104878630 A CN 104878630A CN 201510299142 A CN201510299142 A CN 201510299142A CN 104878630 A CN104878630 A CN 104878630A
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Abstract
The invention provides a dyeing process of cotton-knitted fabrics and belongs to the technical field of textile. By adoption of the dyeing process, the three major problems of the dyeing process in the prior art are solved, i.e., (1) the hand feel is hard and rough, the stripy feel is poor, so that the fabric is not suitable for being used as garment fabrics and the capability of expanding production is influenced; (2) the fabric can be bonded to equipment, the production equipment needs to be frequently cleaned, so that the labor intensity is large, and the dyeing process only can be applied to pad dyeing and printing generally; (3) the color layer difference is serious, dycing defect and white spots can occur on the fabric surface and the quality of a product is difficultly guaranteed and the like. The dyeing process comprises the following steps : (A) preparing materials; (B) treating by positive charges; (C) carrying out primary washing; (D) coating; (E) carrying out secondary washing; and (F) taking out of a vat. The dyeing process provided by the invention has the advantages that the hand feel is comfortable and the quality of the product is good.
Description
Technical field
The invention belongs to textile technology field, relate to a kind of dyeing, particularly a kind of dyeing of cotton fabrics.
Background technology
The energy consumption of current dyeing, has taken the very large cost of dyeing and printing process with water and sewage discharge, according to techniques such as dyeing adds washing, reduction-oxidation is soaped such as activity, reducing dyes, more with water draining, and the vivid degree of face look good is not.Therefore, need to adopt the technique that novel overflow cylinder pigment dyeing replacement is amount of activated, reducing dye can not be accomplished, thus can Simplified flowsheet greatly, can save energy about artificial 35%, minimizing water 40%, steam saving 45%, auxiliary agent 45%, is a kind of important channel of current energy-saving and emission-reduction and cleaner production.
Through retrieval, as Chinese patent literature discloses a kind of dyeing process of cotton fiber [patent No.: ZL201310275538.9; Authorization Notice No.: CN103321056A].This dyeing process of cotton fiber, is characterized in that, comprises the following steps: (one), pre-treatment, and adopt enzyme to process cotton fiber, wherein, the consumption of enzyme is every premium on currency 0.5 ~ 1.5g, temperature 50 ~ 60 DEG C, time 40 ~ 60min, pH value 8 ~ 9; (2), dye, adopt REACTIVE DYES, according to the requirement of different colours, the ratio of various dyestuff, dyestuff, glauber salt are dropped in dye vat together with soda ash, be the 10 ~ 20min that dyes in 55 ~ 60 DEG C in temperature, get rid of raffinate; (3), contaminating post processing, is in the water of 90 DEG C in temperature, and washing 10 ~ 15min, dries; Then Na2CO3 is adopted to carry out fixation, time 30min to the cotton fiber after dyeing.
Although dyeing can improve dyestuff dye-uptake disclosed in this patent, reduce cost of sewage disposal and reduce environmental pollution, but this dyeing also exists three large problems: 1, Boardy Feeling is rough, bar sense is poor, be not suitable for doing garment material, affect the ability of expanding production; 2, cohere equipment, need frequent cleaner production equipment, labor degree intensity is large, usually can only apply in pad dyeing and stamp; 3, face chromatograph difference is serious, and cloth cover there will be look flower and hickie, and product quality is difficult to ensure, therefore, the dyeing designing a kind of cotton fabrics is necessary.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of dyeing of cotton fabrics, this dyeing has the feature of comfortable feel, good product quality.
Object of the present invention realizes by following technical proposal: a kind of dyeing of cotton fabrics, is characterized in that, this technique comprises the following steps:
A, to get the raw materials ready: choosing is standby has carried out the cotton fabrics of the conventional pre-treatment of fabric as embryo cloth;
B, positive charge process: embryo cloth is put into pH value be 2-4 solution soak, at room temperature keep stacking for embryo cloth 3-5 hours after immersion, obtain the embryo cloth with positive charge;
C, once washing: the embryo cloth after electric charge process is cleaned by clear water;
D, coating: coloring agent is mixed with the ratio of clear water according to mass ratio 3-6:100, obtains dyeing liquor, then by once washing after embryo cloth soak 2-5 minutes in dyeing liquor;
E, secondary are washed: after the embryo cloth after coating dries naturally, again cleaned embryo cloth by clear water;
F, go out cylinder: just obtain the embryo cloth after having dyeed after cleaning, after embryo cloth dries, obtain the cotton fabrics of even natural dyeing.
Adopt above technique, make cotton fabrics be cationization, improve utilization efficiency of coatings and increase dark, bright-coloured, brightness, meanwhile, reduce the discharge capacity of energy consumption and sewage chemical product.
Solution in described step B is that soda ash and water form according to mass ratio 1:100 exchange.
Add in solution in described step B and have cation modifier.
The mass ratio of described step B cationic modifier and solution is 5:100.
By stacked mode, embryo cloth is stacked in described step B.
Adopt with upper type, conveniently embryo cloth can be put into solution and soak, soak easily and fast.
Alternatively scheme, is wound on embryo cloth on tubular material stock cylinder in described step B.
Adopt with upper type, embryo cloth progressively can be put into solution and soak, realize continuous dipping by material stock cylinder, immersion efficiency is high.
The number of times once washed in described step C is 2-4 times.
The number of times once washed in described step C is twice.
In described step e, the number of times of secondary washing is 2-4 times.
In described step e, the number of times of secondary washing is twice.
Compared with prior art, the dyeing of this cotton fabrics has the following advantages:
1, the present invention is by making cotton fabrics with positive electricity, with cation modifier in coating, cotton fabrics is improved the absorption of coating, thus improves utilization efficiency of coatings and increase dark, bright-coloured, brightness, good product quality; Do not need to add adhesive and carry out fixation, improve the coarse and cloth cover of feel and highlight and the not first-class problem of coloured light, comfortable feel.
2, be stacked by embryo cloth by stacked mode in step B, employing which, conveniently can put into solution by embryo cloth and soak, and immersion is convenient, labour intensity is low.
Accompanying drawing explanation
Fig. 1 is dyeing step schematic diagram of the present invention.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one:
As shown in Figure 1, the dyeing of this cotton fabrics, this technique comprises the following steps:
A, to get the raw materials ready: choosing is standby has carried out the cotton fabrics of the conventional pre-treatment of fabric as embryo cloth;
B, positive charge process: embryo cloth is put into pH value be 2 solution soak, after immersion by stacking for embryo cloth at room temperature keep 3 hours, obtain the embryo cloth with positive charge; Solution in step B is that soda ash and water form according to mass ratio 1:100 exchange; Add in solution in step B and have cation modifier, cation modifier adopts the product that market can directly have been bought; The mass ratio of step B cationic modifier and solution is 5:100; By stacked mode, embryo cloth is stacked in step B, adopts which, conveniently embryo cloth can be put into solution and soak, soak easily and fast; Certainly, also can adopt this kind of embodiment, that is: be wound on by embryo cloth on tubular material stock cylinder in step B, adopt which, embryo cloth progressively can be put into solution and soak, realize continuous dipping by material stock cylinder, immersion efficiency is high;
C, once washing: the embryo cloth after electric charge process is cleaned by clear water; The number of times once washed in step C is 2 times;
D, coating: coloring agent is mixed with the ratio of clear water according to mass ratio 3:100, obtains dyeing liquor, then by once washing after embryo cloth in dyeing liquor, soak 2 minutes;
E, secondary are washed: after the embryo cloth after coating dries naturally, again cleaned embryo cloth by clear water; In step e, the number of times of secondary washing is 2 times;
F, go out cylinder: just obtain the embryo cloth after having dyeed after cleaning, after embryo cloth dries, obtain the cotton fabrics of even natural dyeing.
Carry out COLOR FASTNESS test to cotton fabrics, testing standard is according to GB/T3921.1-1997, and test institute value is as follows: color fastness to washing is 4 grades.
Embodiment two:
As shown in Figure 1, the dyeing of this cotton fabrics, this technique comprises the following steps:
A, to get the raw materials ready: choosing is standby has carried out the cotton fabrics of the conventional pre-treatment of fabric as embryo cloth;
B, positive charge process: embryo cloth is put into pH value be 3 solution soak, after immersion by stacking for embryo cloth at room temperature keep 4 hours, obtain the embryo cloth with positive charge; Solution in step B is that soda ash and water form according to mass ratio 1:100 exchange; Add in solution in step B and have cation modifier; The mass ratio of step B cationic modifier and solution is 5:100; By stacked mode, embryo cloth is stacked in step B, adopts which, conveniently embryo cloth can be put into solution and soak, soak easily and fast; Certainly, also can adopt this kind of embodiment, that is: be wound on by embryo cloth on tubular material stock cylinder in step B, adopt which, embryo cloth progressively can be put into solution and soak, realize continuous dipping by material stock cylinder, immersion efficiency is high;
C, once washing: the embryo cloth after electric charge process is cleaned by clear water; The number of times once washed in step C is 3 times;
D, coating: coloring agent is mixed with the ratio of clear water according to mass ratio 4:100, obtains dyeing liquor, then by once washing after embryo cloth in dyeing liquor, soak 3 minutes;
E, secondary are washed: after the embryo cloth after coating dries naturally, again cleaned embryo cloth by clear water; In step e, the number of times of secondary washing is 3 times;
F, go out cylinder: just obtain the embryo cloth after having dyeed after cleaning, after embryo cloth dries, obtain the cotton fabrics of even natural dyeing.
Carry out COLOR FASTNESS test to cotton fabrics, testing standard is according to GB/T3921.1-1997, and test institute value is as follows: color fastness to washing is 5 grades.
Embodiment three:
As shown in Figure 1, the dyeing of this cotton fabrics, this technique comprises the following steps:
A, to get the raw materials ready: choosing is standby has carried out the cotton fabrics of the conventional pre-treatment of fabric as embryo cloth;
B, positive charge process: embryo cloth is put into pH value be 4 solution soak, after immersion by stacking for embryo cloth at room temperature keep 5 hours, obtain the embryo cloth with positive charge; Solution in step B is that soda ash and water form according to mass ratio 1:100 exchange; Add in solution in step B and have cation modifier; The mass ratio of step B cationic modifier and solution is 5:100; By stacked mode, embryo cloth is stacked in step B, adopts which, conveniently embryo cloth can be put into solution and soak, soak easily and fast; Certainly, also can adopt this kind of embodiment, that is: be wound on by embryo cloth on tubular material stock cylinder in step B, adopt which, embryo cloth progressively can be put into solution and soak, realize continuous dipping by material stock cylinder, immersion efficiency is high;
C, once washing: the embryo cloth after electric charge process is cleaned by clear water; The number of times once washed in step C is 4 times;
D, coating: coloring agent is mixed with the ratio of clear water according to mass ratio 6:100, obtains dyeing liquor, then by once washing after embryo cloth in dyeing liquor, soak 5 minutes;
E, secondary are washed: after the embryo cloth after coating dries naturally, again cleaned embryo cloth by clear water; In step e, the number of times of secondary washing is 4 times;
F, go out cylinder: just obtain the embryo cloth after having dyeed after cleaning, after embryo cloth dries, obtain the cotton fabrics of even natural dyeing.
Carry out COLOR FASTNESS test to cotton fabrics, testing standard is according to GB/T3921.1-1997, and test institute value is as follows: color fastness to washing is 5 grades.
Adopt this technique, the color fastness to washing of cotton fabrics can reach 4 to 5 grades, and the generation of the phenomenon that can effectively prevent from fading, adds the washable degree of cotton fabrics; Meanwhile, by making cotton fabrics with positive electricity, with cation modifier in coating, cotton fabrics is improved the absorption of coating, thus improve utilization efficiency of coatings and increase dark, bright-coloured, brightness, good product quality; Do not need to add adhesive and carry out fixation, improve the coarse and cloth cover of feel and highlight and the not first-class problem of coloured light, comfortable feel.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. a dyeing for cotton fabrics, is characterized in that, this technique comprises the following steps:
A, to get the raw materials ready: choosing is standby has carried out the cotton fabrics of the conventional pre-treatment of fabric as embryo cloth;
B, positive charge process: embryo cloth is put into pH value be 2-4 solution soak, at room temperature keep stacking for embryo cloth 3-5 hours after immersion, obtain the embryo cloth with positive charge;
C, once washing: the embryo cloth after electric charge process is cleaned by clear water;
D, coating: coloring agent is mixed with the ratio of clear water according to mass ratio 3-6:100, obtains dyeing liquor, then by once washing after embryo cloth soak 2-5 minutes in dyeing liquor;
E, secondary are washed: after the embryo cloth after coating dries naturally, again cleaned embryo cloth by clear water;
F, go out cylinder: just obtain the embryo cloth after having dyeed after cleaning, after embryo cloth dries, obtain the cotton fabrics of even natural dyeing.
2. the dyeing of cotton fabrics according to claim 1, is characterized in that, the solution in described step B is that soda ash and water form according to mass ratio 1:100 exchange.
3. the dyeing of cotton fabrics according to claim 2, is characterized in that, adding in the solution in described step B has cation modifier.
4. the dyeing of cotton fabrics according to claim 3, is characterized in that, the mass ratio of described step B cationic modifier and solution is 5:100.
5. the dyeing of cotton fabrics according to claim 1, is characterized in that, is stacked by embryo cloth in described step B by stacked mode.
6. the dyeing of cotton fabrics according to claim 1, is characterized in that, is wound on tubular material stock cylinder by embryo cloth in described step B.
7. the dyeing of cotton fabrics according to claim 1, is characterized in that, the number of times once washed in described step C is 2-4 times.
8. the dyeing of cotton fabrics according to claim 7, is characterized in that, the number of times once washed in described step C is twice.
9. the dyeing of cotton fabrics according to claim 1, is characterized in that, in described step e, the number of times of secondary washing is 2-4 times.
10. the dyeing of cotton fabrics according to claim 9, is characterized in that, in described step e, the number of times of secondary washing is twice.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510299142.7A CN104878630A (en) | 2015-06-04 | 2015-06-04 | Dyeing process of cotton-knitted fabrics |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510299142.7A CN104878630A (en) | 2015-06-04 | 2015-06-04 | Dyeing process of cotton-knitted fabrics |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342806A (en) * | 2001-10-10 | 2002-04-03 | 广东溢达纺织有限公司 | Cation modifying method for dyeing cotton yarn |
| CN101736579A (en) * | 2008-11-04 | 2010-06-16 | 鞍山博亿印染有限责任公司 | Method for chemical modification, pigment dyeing and overflow sand washing of fiber |
| CN102605653A (en) * | 2012-02-28 | 2012-07-25 | 青岛大学 | One-bath processing method for pure-cotton knitted fabric scouring and bleaching and pigment dyeing |
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2015
- 2015-06-04 CN CN201510299142.7A patent/CN104878630A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342806A (en) * | 2001-10-10 | 2002-04-03 | 广东溢达纺织有限公司 | Cation modifying method for dyeing cotton yarn |
| CN101736579A (en) * | 2008-11-04 | 2010-06-16 | 鞍山博亿印染有限责任公司 | Method for chemical modification, pigment dyeing and overflow sand washing of fiber |
| CN102605653A (en) * | 2012-02-28 | 2012-07-25 | 青岛大学 | One-bath processing method for pure-cotton knitted fabric scouring and bleaching and pigment dyeing |
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Application publication date: 20150902 |