CN114150513A - Deep red cheese dyeing method - Google Patents
Deep red cheese dyeing method Download PDFInfo
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- CN114150513A CN114150513A CN202111381610.7A CN202111381610A CN114150513A CN 114150513 A CN114150513 A CN 114150513A CN 202111381610 A CN202111381610 A CN 202111381610A CN 114150513 A CN114150513 A CN 114150513A
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- 238000004043 dyeing Methods 0.000 title claims abstract description 90
- 235000013351 cheese Nutrition 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 46
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 208000015181 infectious disease Diseases 0.000 claims abstract description 8
- 238000004040 coloring Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000000975 dye Substances 0.000 claims description 90
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 48
- 229960000583 acetic acid Drugs 0.000 claims description 24
- 239000012362 glacial acetic acid Substances 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 239000010979 ruby Substances 0.000 claims description 7
- 229910001750 ruby Inorganic materials 0.000 claims description 7
- -1 draining Substances 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 18
- 238000004321 preservation Methods 0.000 abstract description 7
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 abstract description 6
- 235000011121 sodium hydroxide Nutrition 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 150000004965 peroxy acids Chemical class 0.000 abstract description 3
- 230000004584 weight gain Effects 0.000 description 9
- 235000019786 weight gain Nutrition 0.000 description 9
- 238000005562 fading Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 239000000986 disperse dye Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
- Coloring (AREA)
Abstract
The invention discloses a deep red cheese dyeing method, which mainly comprises the following steps of S1: and (5) carrying out corner pressing treatment on the cheese. S2: dyeing: adopting an infection half-bath positive circulation mode, heating from the initial temperature of 50 ℃ to 130 ℃, then preserving heat for 30 minutes, finishing coloring, discharging residual dye liquor, and carrying out post-treatment; s3: and (3) post-treatment: and (5) cooling the cheese dyed in the step S2 to 70 ℃, feeding water, adding an after-treatment auxiliary agent, heating to 90 ℃ to remove impurities and loose color, keeping the temperature for 10 minutes to fix the color, draining, and then washing in full bath to drain the water and finish dyeing. The dyeing method saves the post-treatment peracid and the heat preservation time, reduces the post-treatment operations of caustic soda, sodium hydrosulfite and the like, greatly improves the dyeing process efficiency, eliminates the chemical residues of the product and improves the product quality.
Description
Technical Field
The invention relates to the technical field of cheese dyeing, in particular to a deep red cheese dyeing method.
Background
According to statistics, the annual export textile line class of the dyeing and finishing industry is about 15 ten thousand tons, the average rate of qualified products of factory dyeing is 98.5%, wherein the problems of fading and bobbin foot of the cheese in the deep red system in the dyeing process account for about 0.3-0.5 point, the factory cost is greatly wasted, and the quality improvement is not moderate.
The existing dyeing method for the deep red polyester cheese mainly comprises cylinder entering temperature control, middle section temperature control, heat preservation time, later stage high temperature control and heat preservation time, then caustic soda sodium hydrosulfite post-treatment, floating color removal and fixation and the like, and the process time is 130 minutes. The specific dyeing method adopts an infection half-bath mode, namely a half-bath water, dye and an auxiliary agent enter a bath, yarn is fed, the temperature is raised to 90 ℃ and is kept for 10 minutes, the temperature is raised to 130 ℃ and is kept for 30 minutes, the dyeing is finished, the discharged residual liquid is cooled to 70 ℃, water is fed, a post-treatment auxiliary agent is added, the temperature is raised to 90 ℃ and is kept for 15 minutes, the first post-treatment is finished, residual dye liquor is discharged, the post-treatment auxiliary agent is added in the water, the temperature is raised to 70 ℃ and is kept for 7 minutes, the second post-treatment is finished, the dyeing is finished after the bath is fully used for washing for 5 minutes, the water is discharged, and the whole dyeing process is finished. However, the dyeing method has long dyeing process time and high water, electricity and gas costs, is easy to cause quality problems such as color difference, fading, inner layer color layer difference and the like, has more static electricity and dust in subsequent production, influences the working environment of workers, uses chemical articles in the post-treatment process, and has certain risks on the product quality due to the use of the chemical articles.
Therefore, there is a need for an improved dyeing formula and dyeing method for deep red cheese, which solves the problems of the prior art.
Disclosure of Invention
The technical problems to be solved by the invention are to solve the technical problems that the dyeing method has long dyeing process time, high water, electricity and gas costs, is easy to have quality problems of color difference, fading, inner layer color layer difference and the like, and the subsequent production has more static electricity and dust, influences the working environment of staff and the like, and the technical scheme adopted by the invention for solving the technical problems is as follows:
a deep red cheese dyeing method comprises the following steps:
s1: selecting 1.4 kg/cheese to carry out corner pressing treatment;
s2: dyeing: adding a certain proportion of dye and dyeing auxiliary into half dye vat water in a positive infection and half bath circulation mode, and then adding the cheese processed in the step S1, wherein the dye vat is heated from an initial temperature of 50 ℃ to 130 ℃ and then is insulated for 30 minutes, so as to finish coloring, and discharging residual dye liquor;
wherein; the dye dosage is 1.54 percent of the weight of the cheese to be dyed;
wherein; the dosage of the dyeing auxiliary agent is 2.7g/L of the bath amount of the dye vat;
s3: and (3) post-treatment: cooling the cheese dyed in the step S2 to 70 ℃, feeding water, adding an after-treatment auxiliary agent, heating to 90 ℃, keeping the temperature for 10 minutes for color fixation, draining, washing with full bath water, draining, and finishing dyeing;
wherein; the dosage of the post-treatment auxiliary agent is 3g/L of the dye vat bath.
Preferably, the dyes respectively comprise 0.0225% of 200% SE/4RF orange, 1.52% of 200% SE/2GF ruby and 0.0044% of 200% HGF dark blue according to the weight of the cheese to be dyed.
Preferably, the dyeing auxiliary comprises glacial acetic acid with the dosage of 0.7g/L of the amount of the dye vat bath and a high-temperature leveling agent with the dosage of 2 g/L.
Preferably, the after-treatment agent comprises glacial acetic acid in an amount of 1g/L and a reducing agent in an amount of 2g/L based on the amount of the dye vat bath.
Preferably, the temperature raising process in step S2 further includes raising the initial temperature to 90 degrees and maintaining the temperature for 5 minutes, and then raising the temperature from 90 degrees to 130 degrees per minute.
Preferably, the density of the cheese is controlled between 0.44 and 0.46 g/cubic centimeter, the height is controlled between 15.5 centimeters, and the diameter is controlled between 16.5 and 17 centimeters.
Preferably, the pump lift in the dye vat is the maximum value when the dyeing and post-treatment are performed in step S2 and step S3.
Preferably, when the dyeing and post-treatment are performed in the steps S2 and S3, the internal pressure of the dye vat is controlled to be 5KG or more. Compared with the prior art, the invention has the beneficial technical effects that:
1. the chromatic light (chromatic light refers to the vividness of the dye, the similarity of a certain proportion and different concentration of the dye) and the type (the type of the disperse dye is divided into a low-temperature type, a medium-temperature type and a high-temperature type, and the dyes adopted in the comparative example and the embodiment of the invention belong to high-temperature dyes) of the dye are consistent, and the high-strength dye is adopted to replace the low-strength dye, so that the dyeing time is favorably improved, and the labor intensity is reduced.
2. The use of the new dye formulation reduced the total amount of dye formulation by about 43.4%.
3. The consumption of the dyeing auxiliary agent is unchanged, the steps of post-treatment of peracid, heat preservation time and the like are omitted, the use of caustic soda and sodium hydrosulfite is avoided, the process time is obviously shortened, and the dyeing process efficiency is improved.
4. The dye residue of the dyed yarn is obviously reduced after the process is adjusted, the weight gain proportion of the dyed yarn of the common dye is measured and calculated to be 0.35% -0.5%, the weight gain of the dyed yarn is changed along with the increase and decrease of the formula dosage, the same color is dyed by 200% of ruby according to the measurement and calculation at present, the weight gain of the dyed yarn is between 0.15% -0.2%, and the dyeing residue is reduced by one time.
5. The cleanliness of the subsequent operation environment and equipment is greatly improved, and the quality problems of color yarn fading, bobbin foot and the like existing after cheese dyeing are solved.
6. 1KG or 1.1 KG/cheese dyeing is generally used in the industry, not only production efficiency is low, and is with high costs and sewage discharge is high, and this method adopts 1.4KG cheese dyeing, improves production efficiency, further effectively reduces water, electricity and gas consumption cost.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments adopted to implement the present invention will be described below. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention.
A deep red cheese dyeing method comprises the following steps:
s1: selecting 1.4 kg/cheese to press the edge and corner.
After the cheese is subjected to corner pressing treatment, the contact between dye and the yarn in the dyeing process is facilitated, and the color pattern of the corners can not appear.
S2: dyeing: adding a certain proportion of dye and dyeing auxiliary into half dye vat water in a positive infection and half bath circulation mode, adding the cheese processed in the step S1, wherein the dye vat is heated from an initial temperature of 50 ℃ to 130 ℃ and then is insulated for 30 minutes, the dyeing is finished, residual dye liquor is discharged, and the post-treatment is carried out;
wherein; the dye is added according to 1.54 percent of the weight of the cheese to be dyed; i.e. 15.4kg of dye is needed to dye 1000kg of yarn.
Wherein; the amount of the dyeing auxiliary agent is added according to 2.7g/L of the bath amount of the dye vat; that is, when the bath volume in the jar is 1000L, 2700ml of the dyeing auxiliary is required.
S3: and (3) post-treatment: carrying out full-bath water washing on the cheese dyed in the step S2, adding a certain proportion of post-treatment auxiliary agent, heating to 90 ℃ for color fixation, and finishing dyeing in one step of water washing;
wherein; the amount of the post-treatment auxiliary agent is added according to 3g/L of the amount of the dye vat bath, namely the amount of the dye vat bath is 1000L, 3000ml of the dyeing auxiliary agent is needed to be added.
Further, the dyes respectively comprise 200% SE/4RF orange at 0.0225%, 200% SE/2GF ruby at 1.52% and 200% HGF dark blue at 0.0044% by weight of the cheese to be dyed.
The high-strength dye is used for replacing the low-strength dye, the dye residue of the dyed yarn is obviously reduced by adjusting the process, the weight gain proportion of the dyed yarn of the common dye is measured and calculated to be about 0.35-0.5%, the weight gain of the dyed yarn is changed along with the increase and decrease of the formula dosage, the same color is measured and calculated by 200% ruby, the weight gain of the dyed yarn of the cheese is measured and calculated to be 0.15-0.2%, the dyeing residue is reduced by one time, the cleanliness of the subsequent operating environment and equipment is greatly improved, and the quality problems of color fading, bobbin foot and the like of a workshop are effectively solved.
Furthermore, the dosage of the dyeing auxiliary agent is glacial acetic acid of 0.7g/L and a high-temperature leveling agent of 2g/L of the amount of the dye vat bath.
Further, glacial acetic acid with the concentration of 98% is adopted as the glacial acetic acid, and a Sydiogen GK liq conc type high-concentration high-temperature leveling agent can be adopted as the high-temperature leveling agent.
Further, the amount of the post-treatment agent is 1g/L of glacial acetic acid and 2g/L of reducing agent based on the amount of the dye vat bath.
Further, the glacial acetic acid is 98% glacial acetic acid, and the reducing agent can be an acidic reducing agent in Jiangbei adhesive factories.
Further, the temperature raising process in step S2 further includes raising the initial temperature to 50 degrees, maintaining the temperature for 5 minutes, and then raising the temperature from 90 degrees to 130 degrees per minute.
Furthermore, the density of the cheese is controlled between 0.44 and 0.46 g/cubic centimeter, the height is controlled between 15.5 centimeters and the diameter is controlled between 16.5 and 17 centimeters.
The control of the diameter of the cheese and the product forming can be influenced by too low density of the cheese, the dyeing quality can be seriously influenced by too high density of the cheese, defective products are caused by uneven dyeing, meanwhile, the requirement of cheese height control can be met by controlling the cheese density forming well, the too long diameter of the cheese is that the too low density is not beneficial to the dyeing product forming, and the too short diameter is that the too high density is not beneficial to the dyeing quality. Therefore, the three factors of the density, the height and the diameter of the cheese are the relationship that the rings are buckled and closely connected, and any link has problems and can cause influence on quality to different degrees.
Further, when the dyeing and the post-treatment are carried out in the steps S2 and S3, the pump lift in the dye vat is the maximum value, the higher the lift of the dye vat is, the larger the water pressure is, the better the penetration of the cheese by the dye is, and the uniform coloring of the yarn layer by the dye liquor can be ensured.
Further, when the dyeing and post-treatment are performed in the steps S2 and S3, the internal pressure of the dye vat is controlled to be 5KG or more, and the pressure is maintained at 5KG, which is more advantageous for the degree of swelling of the yarn made of the polyester material, so that the disperse dye can be sufficiently adsorbed to the yarn for dyeing.
Comparative example 1
In the first comparative example, the dye is 100% S/4RF yellow brown, 100% S/5BLN red jade, 200% dark blue HGF, wherein the dye amount accounts for 0.03%, 3.5%, 0.0048% of the cheese weight, respectively, when dyeing 100 counts of 1.4Kg cheese, the dye vat bath amount is 850L, and the dyeing process is as follows:
s1: selecting 1.4 kg/cheese, and performing corner pressing treatment, wherein the density of the selected cheese is 0.46 g/cubic centimeter, the height is 15.5 centimeters, and the diameter is 16.6 centimeters;
s2: the dyeing method adopts an infection half-bath positive circulation mode, namely, after half-vat water, dye and dye auxiliary agent enter a vat, yarn is fed, the temperature is raised to 90 ℃ and is kept for 10 minutes, the temperature is raised to 130 ℃ and is kept for 30 minutes, and residual liquid is discharged and coloring is finished;
further, the temperature is raised from the initial temperature of 50 ℃ to 90 ℃ for 10 minutes, and then is raised from 90 ℃ to 130 ℃ per minute.
Furthermore, the dye auxiliary agent dosage is 0.7g/L of glacial acetic acid and 2g/L of high-temperature leveling agent according to the dye vat bath dosage, namely the dye vat bath dosage is 850L, the added glacial acetic acid is 595ml, and the high-temperature leveling agent is 1700 ml.
S3: and (3) post-treatment: and (3) cooling to 70 ℃, feeding water, adding the post-treatment auxiliary agent 1, heating to 90 ℃, keeping the temperature for 15 minutes, completing the first post-treatment, discharging residual dye liquor, adding the post-treatment auxiliary agent 2 into the fed water, using peracid to heat to 70 ℃, keeping the temperature for 7 minutes, completing the second post-treatment, washing for 5 minutes in a full bath, draining water, and completing the dyeing of the whole process.
Specifically, the added post-treatment auxiliary agent 1 is 1g/L of glacial acetic acid, 2g/L of reducing agent, 0.5g/L of sodium hydroxide and 0.5g/L of sodium hydrosulfite according to the amount of the dye vat bath; the bath volume of the dye vat is 850L, the added glacial acetic acid is 850ml, the reducing agent is 1700ml, the sodium hydroxide is 440ml and the sodium hydrosulfite is 440 ml.
The added after-treatment agent 2 is glacial acetic acid with the amount of 1g/L according to the amount of the dye vat bath, namely the amount of the dye vat bath is 880L, and the added glacial acetic acid is 880 ml.
Tests show that the weight gain ratio of the dyed yarns of the cheese is 0.41%, the difference between the color of the inner layer and the color of the outer layer is large, the inner layer fades, 0.35 mm of bobbin yarn needs to be scrapped, the impurities in the inner layer are more, the dust is large, and the hidden quality trouble exists.
Example one
In this example, the dye is 200% S/4RF orange, 200% S/5BLN ruby, 200% dark blue HGF, wherein the dye dosage is 0.0225%, 1.52%, 0.0044% by weight of cheese, respectively, when dyeing 100 pieces of 1.4Kg cheese, the dye vat bath amount is 850L, the dyeing process is as follows:
s1: selecting 1.4 kg/cheese, and performing corner pressing treatment, wherein the selected cheese has the density of 0.46 g/cubic centimeter, the height of 15.5 centimeters and the diameter of 16.6 centimeters.
S2: the dyeing method adopts an infection half-bath positive circulation mode, namely, after half-vat water, dye and dye auxiliary agent enter a vat, yarn is fed, the temperature is raised to 90 ℃ for 5 minutes, the temperature is raised to 130 ℃ for 30 minutes, and residual liquid is discharged and coloring is finished.
Specifically, the temperature is raised from 50 ℃ at the initial temperature to 90 ℃ for 5 minutes, and then is raised from 90 ℃ per minute to 2 ℃ to 130 ℃ for heat preservation.
Specifically, the dye auxiliary agent comprises glacial acetic acid of 0.7g/L and a high-temperature leveling agent of 2g/L according to the amount of a dye vat bath, namely the amount of the dye vat bath is 850L, the amount of the added glacial acetic acid is 595ml, and the amount of the high-temperature leveling agent is 1700 ml.
S3: and (3) post-treatment: and (3) cooling to 70 ℃, feeding water, adding an aftertreatment auxiliary agent, heating to 90 ℃, keeping the temperature for 10 minutes, fixing color, and finishing dyeing in one step of washing.
Specifically, the added post-treatment auxiliary agent 1 is 1g/L of glacial acetic acid and 2g/L of reducing agent according to the amount of dye vat bath; the bath volume of the dyeing jar is 850L, the added glacial acetic acid is 850ml, and the reducing agent is 1700 ml.
Compared with the comparative example 1, the cheese dyed by the steps in the embodiment 1 has the advantages that the weight gain ratio of the dyed yarns of the dye is 0.15%, the color of the inner layer is not much different from that of the outer layer, the scrapping and fading phenomena of the cheese are avoided, a small amount of impurities exist in the inner layer, and the quality is not influenced. The total dosage of the dye formula is reduced, the dosage of the dyeing auxiliary agent is unchanged, the heat preservation time in the dyeing process is shortened, the use of caustic soda and sodium hydrosulfite is cancelled in the post-treatment process, the quality requirements of the product can be still met, the dyeing process efficiency is integrally improved, the chemical residues of the product are reduced, the product quality is effectively guaranteed, and the quality problems of color yarn fading, bobbin base and the like are avoided.
Example two
In this example, the dye is 200% S/4RF orange, 200% S/5BLN ruby, 200% dark blue HGF, wherein the dye dosage is 0.0225%, 1.52%, 0.0044% by weight of cheese, respectively, when dyeing 100 pieces of 1.4Kg cheese, the dye vat bath amount is 850L, the dyeing process is as follows:
s1: selecting 1.4 kg/cheese, and processing the cheese by corner pressing, wherein the selected cheese has the density of 0.44 g/cubic centimeter, the height of 15.5 centimeters and the diameter of 16.7 centimeters
S2: the dyeing method adopts an infection half-bath positive circulation mode, namely, after half-vat water, dye and dye auxiliary agent enter a vat, yarn is fed, the temperature is raised to 90 ℃ for 5 minutes, the temperature is raised to 130 ℃ for 30 minutes, and residual liquid is discharged and coloring is finished.
Specifically, the temperature is raised from 50 ℃ at the initial temperature to 90 ℃ for 5 minutes, and then is raised from 90 ℃ per minute to 2 ℃ to 130 ℃ for heat preservation.
Specifically, the dye auxiliary agent is glacial acetic acid of 0.7g/L and a high-temperature leveling agent of 2g/L, wherein the dye bath amount is 850L, the glacial acetic acid is 595ml, and the high-temperature leveling agent is 1700 ml.
S3: and (3) post-treatment: and (3) cooling to 70 ℃, feeding water, adding an aftertreatment auxiliary agent, heating to 90 ℃, keeping the temperature for 10 minutes, fixing color, and finishing dyeing in one step of washing.
Specifically, the added post-treatment auxiliary agent 1 is 1g/L of glacial acetic acid and 2g/L of reducing agent according to the amount of dye vat bath; the bath volume of the dyeing jar is 850L, the added glacial acetic acid is 850ml, and the reducing agent is 1700 ml.
Compared with the embodiment 1, the density and the diameter of the cheese with dyeing are changed, other dyeing procedures are unchanged, the weight gain ratio of the dyed yarns of the cheese dyed in the steps is 0.2 percent, the color difference between the inner layer color and the outer layer color is not large, the phenomena of scrapping and fading of bobbin yarns are avoided, a small amount of impurities exist in the inner layer, the quality is not influenced, and the requirements of actual production quality are met.
The following table 1 is a comparative example 1, example 2 cheese dyeing performance table:
TABLE 1
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A deep red cheese dyeing method is characterized by comprising the following steps:
s1: selecting 1.4 kg/cheese to carry out corner pressing treatment;
s2: dyeing: adding a certain proportion of dye and dyeing auxiliary into half dye vat water in a positive infection and half bath circulation mode, and then adding the cheese processed in the step S1, wherein the dye vat is heated from an initial temperature of 50 ℃ to 130 ℃ and then is insulated for 30 minutes, so as to finish coloring, and discharging residual dye liquor;
wherein; the dye dosage is 1.54 percent of the weight of the cheese to be dyed;
wherein; the dosage of the dyeing auxiliary agent is 2.7g/L of the bath amount of the dye vat;
s3: and (3) post-treatment: cooling the cheese dyed in the step S2 to 70 ℃, feeding water, adding an after-treatment auxiliary agent, heating to 90 ℃, keeping the temperature for 10 minutes for color fixation, draining, washing with full bath water, draining, and finishing dyeing;
wherein; the dosage of the post-treatment auxiliary agent is 3g/L of the dye vat bath.
2. A deep red cheese dyeing method according to claim 1,
the dyes respectively comprise 0.0225% of 200% SE/4RF orange, 1.52% of 200% SE/2GF ruby and 0.0044% of 200% HGF dark blue according to the weight of cheese to be dyed.
3. The method according to claim 2, wherein the dyeing auxiliary comprises glacial acetic acid in an amount of 0.7g/L and a high temperature leveling agent in an amount of 2g/L based on the amount of the dye vat bath.
4. A deep red cheese dyeing method according to claim 3, characterized in that said post-treatment agent comprises glacial acetic acid in an amount of 1g/L and a reducing agent in an amount of 2g/L of the bath amount.
5. The method according to claim 4, wherein the step of raising the temperature in step S2 further comprises raising the temperature to 90 degrees for 5 minutes and then raising the temperature from 90 degrees to 130 degrees per minute.
6. A deep red cheese dyeing method according to claim 5, characterized in that the density of said cheese is controlled between 0.44 and 0.46 g/cc, the height is controlled between 15.5 cm and the diameter is controlled between 16.5 and 17 cm.
7. The method for dyeing deep red cheese according to claim 6, wherein said dyeing and post-treatment of step S2 and step S3 are carried out with maximum pump lift in the dye vat.
8. The method for dyeing deep red cheese according to claim 7, wherein the internal pressure of the dyeing vessel is controlled to 5KG or more in the dyeing and post-treatment steps S2 and S3.
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