CN114457596A - Digital printing process of knitted acetic acid fabric - Google Patents
Digital printing process of knitted acetic acid fabric Download PDFInfo
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- CN114457596A CN114457596A CN202210283452.XA CN202210283452A CN114457596A CN 114457596 A CN114457596 A CN 114457596A CN 202210283452 A CN202210283452 A CN 202210283452A CN 114457596 A CN114457596 A CN 114457596A
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- 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
- D06P5/30—Ink jet printing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical 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
- 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
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- 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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/6033—Natural or regenerated cellulose using dispersed dyes
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- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Coloring (AREA)
Abstract
The application relates to the technical field of acetic acid fabric printing and dyeing, and particularly discloses a digital printing process of a knitted acetic acid fabric, which comprises the following steps: pretreatment, pre-setting treatment, sizing treatment, digital printing treatment, active steaming treatment, post-treatment, setting treatment and finishing treatment; sizing treatment: padding and drying the fabric subjected to the pre-setting treatment in a sizing working solution; digital printing treatment: printing the pattern of the flower shape on the fabric subjected to sizing treatment by using high-temperature disperse dye ink under the condition that the vehicle speed is 2-3m/min, and drying; and (3) active steaming treatment: and steaming the fabric subjected to the digital printing treatment in a steaming working solution at the temperature of 120-130 ℃, wherein the steaming time is 50-60 min. The digital printing process ensures that the fabric has soft and no hardness, flat, draping and no edge curl, pure, bright and not stuffy color, and has higher friction color fastness and sublimation color fastness.
Description
Technical Field
The application relates to the technical field of acetic acid fabric printing and dyeing, in particular to a digital printing process of a knitted acetic acid fabric.
Background
The knitted acetate fabric has the characteristics of soft texture, moisture absorption, air permeability, good elasticity, extensibility and the like, and the clothes made of the knitted acetate fabric are comfortable, cool, safe and environment-friendly to wear. With the continuous development of the clothing industry, the knitted acetate fabric also occupies an important position, particularly in the field of high-grade clothing fabrics.
At present, the digital printing process of the knitted acetate fabric generally immerses the fabric into pretreatment slurry for sizing treatment, and then the fabric is taken out and dried after being immersed and rolled. And then directly spraying and printing the high-temperature disperse dye ink on the fabric, drying, then, transferring and developing color for 30s at 210 ℃, and washing. The fabric obtained by the digital printing process has hard hand feeling. And some manufacturers also adopt the digital jet printing and drying of the dispersed ink on the sized fabric, and the used dispersed ink is low-temperature dispersed dye ink. Then steaming the fabric, wherein the steaming temperature is 130 ℃, and the steaming time is 40 min. And then washing the fabric with water. The fabric obtained by the digital printing process is soft in hand feeling, but poor in sublimation resistance and color fastness. Therefore, research on a digital printing process which can enable the knitted acetate fabric to have good handfeel and softness and sublimation color fastness is urgently needed.
Disclosure of Invention
In order to enable the knitted acetate fabric to have good handfeel and softness and also have higher sublimation-resistant color fastness, the application provides a digital printing process of the knitted acetate fabric.
The following technical scheme is adopted:
a digital printing process of a knitted acetate fabric comprises the following steps: pretreatment, pre-setting treatment, sizing treatment, digital printing treatment, active steaming treatment, post-treatment, setting treatment and finishing treatment;
wherein, the sizing treatment specifically comprises the following steps: padding the fabric subjected to the pre-setting treatment in a sizing working solution, and then drying; and the temperature of the sizing working solution is 80-90 ℃, the sizing working solution takes water as a solvent, and the solute of the sizing working solution comprises the following raw materials: sizing slurry 30-60 g/L;
the digital printing treatment specifically comprises the following steps: printing a pattern on the sized fabric by using the high-temperature disperse dye ink under the condition that the vehicle speed is 2-3m/min, and then drying;
the active steaming treatment specifically comprises the following steps: and steaming the fabric subjected to the digital printing treatment in a steaming working solution, wherein the temperature of the steaming working solution is 120-130 ℃, the steaming time is 50-60min, and the steaming working solution is water vapor.
By adopting the technical scheme, the digital printing process carries out sizing treatment on the fabric, the sizing slurry can be attached to the surface of the fabric, and the temperature of the sizing working solution is 80-90 ℃, so that the brownian motion of the sizing slurry is increased, the permeability of the fabric is improved, and the using effect of the sizing slurry on the fabric is enhanced. Then, at the speed of 2-3m/min, the high-temperature disperse dye ink is sprayed and printed on the fabric subjected to sizing treatment, and then, at the temperature of 120-130 ℃, steaming treatment is carried out for 50-60 min. The high-temperature disperse ink can be used for printing and dyeing the fabric, the color saturation of the fabric is increased, the fabric sizing treatment is combined, the sizing slurry contains an auxiliary agent required for dyeing and fixing, the dyeing effect of the high-temperature disperse dye ink can be increased, the subsequent steaming is combined, the friction color fastness, the level dyeing property and the color yield of the high-temperature disperse dye ink and the fabric are further increased, and the fabric has the advantages of soft hand feeling, no hardness, smooth and hanging appearance, no curling, pure and bright color, no stuffiness, higher friction color fastness and higher sublimation color fastness.
The usage amount of the further high-temperature disperse dye ink is 0.3-30ml/m2。
Optionally, in the sizing treatment, the padding residual rate of padding is 80-90%; the drying conditions are as follows: the temperature is 180 ℃ and 190 ℃, the speed is 30-40m/min, and the overfeed is 20-30%.
By adopting the technical scheme, the rolling residual rate in the sizing treatment is optimized, so that a proper amount of sizing working solution is remained on the fabric. And the drying condition is optimized, so that the compactness of the fabric is increased, the elastic recovery rate of the fabric is improved, the using amount of sizing slurry in the fabric in unit area is increased, the fabric can be split, the permeability of the sizing slurry in the fabric is increased, the processing effect of the sizing slurry on the fabric is enhanced, and the synergistic effect between the sizing slurry and the high-temperature disperse dye ink is also increased.
Optionally, the pretreatment specifically comprises: immersing the fabric into desizing working solution, wherein the temperature of the desizing working solution is 90-100 ℃, and performing immersion treatment and liquid drainage; and then washed with water.
The further desizing working solution takes water as a solvent, and the solute of the desizing working solution comprises the following raw materials: 0.3-1g/L desizing agent and 0.3-1g/L degreasing agent.
By adopting the technical scheme, the fabric is subjected to dipping treatment in the desizing working solution, so that the residue of impurities on the surface of the fabric can be effectively reduced, and the subsequent pre-setting treatment, sizing treatment and digital printing treatment are facilitated.
Optionally, the pre-setting process specifically includes: and (3) padding the pretreated fabric in a pre-setting working solution with a rolling residual rate of 80-90%, and then drying and pre-setting under the conditions of a temperature of 160-180 ℃, a vehicle speed of 30-40m/min and overfeeding of 10-20%.
By adopting the technical scheme, the fabric is easy to curl in digital printing treatment, and the fabric is pre-shaped at the moment, so that the curling of the fabric can be effectively reduced, the compactness of the fabric can be increased, and the elastic recovery rate of the fabric is improved. Meanwhile, the pre-setting treatment is carried out before the sizing treatment, so that the smoothness of the fabric in the sizing treatment process is increased, the shrinkage rate of the fabric is reduced, the influence of sizing on the pre-setting of the fabric is reduced, and the performance of the fabric is improved.
Optionally, in the pre-setting treatment, the temperature of the pre-setting working fluid is 40 to 50 ℃, the pre-setting working fluid uses water as a solvent, and solutes of the pre-setting working fluid include the following raw materials: 30-50g/L of stiffening agent.
By adopting the technical scheme, the stiffening agent is added into the presetting working solution, so that the hardness of the fabric can be increased, the smoothness of the fabric during digital printing processing is kept, the curling of the fabric is reduced, the alarm condition during the digital printing processing is also reduced, and the appearance of the fabric can be suspended.
Optionally, the post-treatment specifically comprises: immersing the fabric subjected to the active steaming treatment into a cleaning working solution, wherein the temperature of the cleaning working solution is 5-15 ℃, and performing overflow washing and liquid drainage; then adding reduction working solution, wherein the temperature of the reduction working solution is 10-20 ℃, heating to 30-50 ℃, dipping, washing and discharging liquid; then adding neutralizing working solution, dipping and washing, and discharging liquid.
Optionally, in the post-treatment, the cleaning working solution uses water as a solvent, and solutes of the cleaning working solution include the following raw materials: 1-2g/L of anti-sticking agent;
the reduction working solution takes water as a solvent, and the solute of the reduction working solution comprises the following raw materials: 4-6g/L of sodium carbonate, 4-6g/L of sodium hydrosulfite and 1-2g/L of anti-sticking agent;
the neutralization working solution takes water as a solvent, and the solute of the neutralization working solution comprises the following raw materials: 0.5-1.5g/L of neutralizing agent and 1-2g/L of anti-sticking agent.
By adopting the technical scheme, the steamed fabric is cleaned by sequentially adopting the cleaning working solution, the reduction working solution and the neutralization working solution. The temperature of the cleaning working solution is 5-15 ℃, residual ink on the surface of the fabric can be removed, and the anti-sticking agent is added into the cleaning working solution, so that the situation that the ink cleaned off is stuck to the surface of the fabric reversely in the fabric cleaning process can be reduced, the mottled condition of the fabric is reduced, and the neatness in the fabric post-treatment process is improved. The anti-sticking agent, the sodium carbonate and the sodium hydrosulfite are added into the reduction working solution, and the synergistic effect of the sodium carbonate, the sodium hydrosulfite and the anti-sticking agent is utilized, so that the floating ink on the surface of the fabric is effectively removed on the basis of keeping the fabric clean, and the fabric post-treatment effect is improved.
Further overflow washing for 10-20min, and the overflow rate is 0.8-1.3 t/min.
Optionally, the shaping treatment specifically comprises: drying and shaping the post-treated fabric under the conditions that the temperature is 130-160 ℃ and the vehicle speed is 20-30 m/min.
By adopting the technical scheme, the fabric is shaped, so that the fabric is kept suspended.
Optionally, the finishing treatment specifically comprises: padding the fabric subjected to the shaping treatment in finishing working solution with the rolling residual rate of 80-90%, and then drying at the temperature of 110-.
Optionally, in the finishing treatment, the finishing working solution uses water as a solvent, and solutes of the finishing working solution include the following raw materials: 1-5g/L of soft oil.
Through adopting above-mentioned technical scheme, the surface fabric after handling the design is put in order and is handled, adds the butter in the working solution of putting in order, and the butter can effectual increase the compliance of surface fabric, improves the feel of surface fabric, but also can increase the friction colour fastness of surface fabric, improves the result of use of surface fabric.
In summary, the present application has the following beneficial effects:
1. the digital printing process of the knitted acetate fabric has the advantages that through mutual matching of pretreatment, pre-setting treatment, sizing treatment, digital printing treatment, active steaming treatment, post-treatment, setting treatment and finishing treatment, the fabric is soft in hand feeling, free of hardening, smooth and flat in appearance, free of curling, pure, bright and not stuffy in color, and high in friction-resistant color fastness and sublimation-resistant color fastness.
2. In the pre-setting treatment, the condition of curling of the fabric is reduced, the compactness and the elastic recovery rate of the fabric can be increased, and the shrinkage rate of the fabric can be reduced. The stiffening agent is added into the pre-setting working solution, so that the smoothness of the fabric during digital printing processing is kept, the alarm condition in the digital printing processing process is reduced, and the safety of the fabric in the digital printing process is improved.
3. The fabric subjected to steaming treatment is sequentially cleaned by adopting the cleaning working solution, the reducing working solution and the neutralizing working solution, and the anti-sticking agent is added into the cleaning working solution, the reducing working solution and the neutralizing working solution, so that the fabric post-treatment effect is improved on the basis that the fabric keeps clean and tidy.
Detailed Description
The present application will be described in further detail with reference to examples.
Examples
Example 1
A digital printing process of a knitted acetate fabric comprises the following steps: pretreatment, pre-setting treatment, sizing treatment, digital printing treatment, active steaming treatment, post-treatment, setting treatment and finishing treatment.
The method specifically comprises the following steps: s1, pretreatment: and (3) soaking the fabric into desizing working solution at the temperature of 95 ℃ in a bath ratio of 1:25, soaking for 25min, and discharging liquid. Then adding water at the temperature of 35 ℃ and the bath ratio of 1:25, soaking and washing for 25min, and discharging liquid.
Wherein, the working solution that desizes uses water as the solvent, and the solute of working solution that desizes is: 0.5g/L desizing agent and 0.5g/L degreasing agent. The desizing agent is refining desizing agent M1001, the oil removing agent is refining oil removing agent M1085, and the desizing agent and the oil removing agent are selected from the chemical industry Co., Ltd.
S2, pre-setting: and (3) padding the pretreated fabric in a pre-setting working solution, wherein the temperature of the pre-setting working solution is 40 ℃, and the rolling residual rate is 85%. Then, drying and presetting are carried out under the conditions that the temperature is 170 ℃, the vehicle speed is 35m/min and the overfeed is 15 percent.
Wherein, the presetting working solution uses water as solvent, and the solute of the presetting working solution is: 40g/L of stiffening agent, and the stiffening agent is TF-631A selected from Zhejiang chemical group.
S3, sizing treatment: and (3) padding the fabric subjected to the pre-setting treatment in a sizing working solution, wherein the temperature of the sizing working solution is 80 ℃, and the rolling residual rate is 85%. Then drying is carried out under the conditions that the temperature is 185 ℃, the vehicle speed is 35m/min and the overfeed is 25 percent.
Wherein, starching working solution uses water as solvent, and the solute of the starching working solution is: the sizing agent is 40g/L, and the sizing agent is chemical fiber sizing agent PT-4p and is selected from Hangzhou mulberry code science and technology limited company.
S4, digital printing treatment: and printing the pattern on the sized fabric by using the high-temperature disperse dye ink under the condition that the vehicle speed is 3m/min, wherein the temperature of the high-temperature disperse dye ink is 35 ℃. Then drying is carried out at the temperature of 120 ℃.
Wherein the usage amount of the high-temperature disperse dye ink is 10ml/m2And the high-temperature disperse dye ink is selected from Zhejiang Boyin digital science and technology limited.
S5, active steaming treatment: and steaming the fabric subjected to the digital printing treatment in a steaming working solution, wherein the temperature of the steaming working solution is 125 ℃, and the steaming time is 50 min.
Wherein the steaming working solution is steam.
S6, post-processing: and (3) immersing the fabric subjected to the active steaming treatment into a cleaning working solution, wherein the temperature of the cleaning working solution is 10 ℃, the overflow washing is carried out for 15min, the overflow rate is 1t/min, and discharging liquid. Then adding reduction working solution, wherein the temperature of the reduction working solution is 15 ℃, heating to 40 ℃ at the heating rate of 1 ℃/min, dipping and washing for 15min, and discharging liquid. Then adding neutralizing working solution, wherein the temperature of the neutralizing working solution is 25 ℃, soaking and washing for 15min, and discharging liquid.
Wherein, wash the working solution and use water as the solvent, wash the solute of working solution and be: 1.5g/L of anti-sticking agent, and the anti-sticking agent is
Selected from Hangzhou Ludaofu Limited liability company.
The reduction working solution takes water as a solvent, and the reduction working solution has the following solutes: 5g/L of soda, 5g/L of sodium hydrosulfite and 1.5g/L of anti-sticking agent
The neutralization working solution takes water as a solvent, and the solutes of the neutralization working solution are as follows: 1g/L of neutralizing agent and 1.5g/L of anti-sticking agent, wherein the neutralizing agent is a pH optimization treating agent WA selected from Hangzhou Jiasheng auxiliary agent company Limited; the anti-sticking agent is
S7, shaping treatment: and drying and shaping the post-treated fabric under the conditions that the temperature is 150 ℃ and the vehicle speed is 25 m/min.
S8, finishing: and (3) padding the fabric subjected to the shaping treatment in finishing working solution, wherein the temperature of the finishing working solution is 40 ℃, and the rolling residual rate is 85%. Then drying is carried out under the conditions that the temperature is 120 ℃ and the vehicle speed is 35 m/min.
Wherein, the finishing working solution uses water as solvent, and the solute of the finishing working solution is: 3g/L of soft oil, wherein the soft oil is hydrophilic soft olein selected from Zhejiang chemical group.
Example 2
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that in the active steaming treatment, the steaming time is 60 min.
Example 3
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that the speed is 2m/min in the reactive steaming treatment.
Example 4
The digital printing process of the knitted acetate fabric is different from the digital printing process of the embodiment 1 in that during sizing treatment, the solutes of sizing working solution are as follows: the sizing agent is 60 g/L.
Example 5
The digital printing process of the knitted acetate fabric is different from the digital printing process of the embodiment 1 in that during sizing treatment, the solutes of sizing working solution are as follows: and (3) sizing slurry by 30 g/L.
Example 6
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that water is used as a presetting working solution in presetting treatment.
Comparative example
Comparative example 1
The digital printing process of the knitted acetate fabric is different from the digital printing process in the embodiment 1 in that the high-temperature disperse dye ink is replaced by the same amount of low-temperature disperse dye ink in the digital printing process, and the low-temperature disperse dye ink is selected from Zhejiang Boyin digital science and technology limited.
Comparative example 2
The digital printing process of the knitted acetate fabric is different from the digital printing process of the embodiment 1 in that the digital printing process is carried out by active steaming, the temperature of steaming working solution is 210 ℃, and steaming time is 30 s.
Comparative example 3
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that in the active steaming treatment, the steaming time is 40 min.
Comparative example 4
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that in the active steaming treatment, the steaming time is 70 min.
Comparative example 5
The digital printing process of the knitted acetate fabric is different from the digital printing process in the embodiment 1 in that the speed is 5 m/min.
Comparative example 6
The digital printing process of the knitted acetate fabric is different from the digital printing process of the embodiment 1 in that during sizing treatment, the solutes of sizing working solution are as follows: sizing slurry 10 g/L.
Comparative example 7
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that the presetting treatment is not carried out.
Comparative example 8
The digital printing process of the knitted acetate fabric is different from that of the embodiment 1 in that finishing treatment is not carried out.
Performance detection
The digital printing processing fabrics obtained in examples 1 to 6 and comparative examples 1 to 8 were used as samples, and the following performance tests were carried out on the samples, the evaluation criteria are shown in table 1, and the test results are shown in table 2.
Wherein, 30 professionals are selected to evaluate the hand feeling softness, the appearance flatness, the color brightness and the color uniformity of the sample. The evaluation of hand feeling softness, appearance flatness, color brightness and color uniformity is divided into four grades, and the first grade is marked with 1 grade; recording the second grade for 2 minutes; recording the third grade for 3 points; the fourth gear is marked with 4 points. The higher the score, the better the relative performance of the fabric, and the evaluation criteria of softness of hand feeling, flatness of appearance, brightness of color and uniformity of color are shown in table 1.
And detecting the wet rubbing color fastness of the sample according to GB/T3920-2008 'color fastness to rubbing color test of textiles'. The higher the grade, the better the crocking fastness.
The sublimation color fastness of the sample is detected according to GB/T5718-1997 color fastness to dry heat (except hot pressing) of textile color fastness test. The higher the grade, the better the sublimation fastness.
TABLE 1 evaluation criteria
| Detecting items | Softness of hand feeling | Flatness of appearance | Brightness of color | Color uniformity |
| First gear | Severe hair hardness | Severe edge curl | Severe distress | Severe speckle wave |
| Second gear | Obvious hair hardness | Obvious edge curl | Obvious stuffiness | Obvious mottle |
| Three-gear | Slightly hard | Slightly curled edge | Slightly stuffy | Slightly mottled |
| Four-gear | Softness | Leveling | Bright | Uniformity |
TABLE 2 test results
As can be seen from the table 2, the knitted acetate fabric treated by the digital printing process has good hand feeling softness, appearance flatness, fresh color brightness and color uniformity, and also has higher friction color fastness and sublimation color fastness, wherein the friction color fastness reaches 5 grade, and the sublimation color fastness reaches 5 grade, so that the fabric has the advantages of soft and no hardness in hand feeling, smooth and suspension appearance without curling, pure and bright color without stuffiness, uniform dyeing, good overall performance and capability of meeting market demands.
Comparing example 1 with comparative example 1, it can be seen that in the digital printing treatment, the high-temperature disperse dye ink is adopted to improve the rubbing color fastness, the sublimation color fastness, the fresh brightness and the color uniformity of the fabric. And in the active steaming treatment, the temperature of the steaming working solution is 125 ℃, the steaming time is 50min, and the friction color fastness, the sublimation color fastness, the hand feeling softness and the appearance flatness of the fabric are improved by combining the comparative example 2.
Comparing example 1 with comparative examples 3 to 4, it can be seen that the steaming time of 50 to 60min in the active steaming treatment can maintain good overall performance of the fabric. And in combination with the comparative example 5, in the digital printing treatment, when the vehicle speed is 2-3m/min, the friction color fastness and the color brightness of the fabric can be improved. And in the sizing treatment, the sizing agent is 30-60g/L so that the fabric keeps good overall performance by combining the comparative example 6.
Comparing example 1 with comparative example 7, it can be seen that pre-setting between pre-treatment and sizing increases the crockfastness of the face fabric, as well as the appearance smoothness. And by combining the comparative example 8, the finishing treatment is carried out after the setting treatment, so that the friction color fastness of the fabric can be improved, and the hand feeling softness of the fabric can be improved.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. A digital printing process of a knitted acetate fabric is characterized by comprising the following steps: which comprises the following steps: pretreatment, pre-setting treatment, sizing treatment, digital printing treatment, active steaming treatment, post-treatment, setting treatment and finishing treatment;
wherein, the sizing treatment specifically comprises the following steps: padding the fabric subjected to the pre-setting treatment in a sizing working solution, and then drying; and the temperature of the sizing working solution is 80-90 ℃, the sizing working solution takes water as a solvent, and the solute of the sizing working solution comprises the following raw materials: sizing slurry 30-60 g/L;
the digital printing treatment specifically comprises the following steps: printing a pattern on the sized fabric by using the high-temperature disperse dye ink under the condition that the vehicle speed is 2-3m/min, and then drying;
the active steaming treatment specifically comprises the following steps: and steaming the fabric subjected to the digital printing treatment in a steaming working solution, wherein the temperature of the steaming working solution is 120-130 ℃, the steaming time is 50-60min, and the steaming working solution is water vapor.
2. The digital printing process of the knitted acetate fabric according to claim 1, which is characterized in that: in the sizing treatment, the padding residual rate of padding is 80-90%; the drying conditions are as follows: the temperature is 180-190 ℃, the speed is 30-40m/min, and the overfeed is 20-30%.
3. The digital printing process of the knitted acetate fabric according to claim 1, characterized in that: the pretreatment specifically comprises the following steps: immersing the fabric into desizing working solution, wherein the temperature of the desizing working solution is 90-100 ℃, and performing immersion treatment and liquid drainage; and then washed with water.
4. The digital printing process of the knitted acetate fabric according to claim 1, which is characterized in that: the presetting treatment specifically comprises the following steps: padding the pretreated fabric in a pre-setting working solution, wherein the rolling residual rate is 80-90%, and then drying and pre-setting under the conditions that the temperature is 160-.
5. The digital printing process of the knitted acetate fabric according to claim 4, characterized in that: in the pre-setting treatment, the temperature of the pre-setting working solution is 40-50 ℃, the pre-setting working solution takes water as a solvent, and solutes of the pre-setting working solution comprise the following raw materials: 30-50g/L of stiffening agent.
6. The digital printing process of the knitted acetate fabric according to claim 1, which is characterized in that: the post-treatment specifically comprises the following steps: immersing the fabric subjected to the active steaming treatment into a cleaning working solution, wherein the temperature of the cleaning working solution is 5-15 ℃, and performing overflow washing and liquid drainage; then adding reduction working solution, wherein the temperature of the reduction working solution is 10-20 ℃, heating to 30-50 ℃, dipping, washing and discharging liquid; then adding neutralizing working solution, dipping and washing, and discharging liquid.
7. The digital printing process of the knitted acetate fabric according to claim 6, characterized in that: in the post-treatment, the cleaning working solution takes water as a solvent, and solutes of the cleaning working solution comprise the following raw materials: 1-2g/L of anti-sticking agent;
the reduction working solution takes water as a solvent, and the solute of the reduction working solution comprises the following raw materials: 4-6g/L of sodium carbonate, 4-6g/L of sodium hydrosulfite and 1-2g/L of anti-sticking agent;
the neutralization working solution takes water as a solvent, and the solute of the neutralization working solution comprises the following raw materials: 0.5-1.5g/L of neutralizing agent and 1-2g/L of anti-sticking agent.
8. The digital printing process of the knitted acetate fabric according to claim 1, which is characterized in that: the shaping treatment specifically comprises the following steps: drying and shaping the post-treated fabric under the conditions that the temperature is 130-160 ℃ and the vehicle speed is 20-30 m/min.
9. The digital printing process of the knitted acetate fabric according to claim 1, which is characterized in that: the finishing treatment specifically comprises the following steps: padding the fabric subjected to the shaping treatment in finishing working solution with the rolling residual rate of 80-90%, and then drying at the temperature of 110-.
10. The digital printing process of the knitted acetate fabric according to claim 9, characterized in that: in the finishing treatment, the finishing working solution takes water as a solvent, and the solute of the finishing working solution comprises the following raw materials: 1-5g/L of soft oil.
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| US5507840A (en) * | 1991-12-07 | 1996-04-16 | Hoechst Aktiengesellschaft | Process for the preparation of modified fiber material and process for the dyeing of the modified fiber material with anionic textile dyes |
| CN104120544A (en) * | 2013-04-28 | 2014-10-29 | 罗莱家纺股份有限公司 | High-density coral fleece fabric and manufacturing method of high-density coral fleece fabric |
| CN108625208A (en) * | 2018-05-29 | 2018-10-09 | 无锡市凯诺纺织数码科技有限公司 | Fleece is washed without paper digital direct spray printing flower process entirely |
| CN112323522A (en) * | 2020-09-18 | 2021-02-05 | 杭州宏华数码科技股份有限公司 | Digital printing process of acetate fiber fabric |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507840A (en) * | 1991-12-07 | 1996-04-16 | Hoechst Aktiengesellschaft | Process for the preparation of modified fiber material and process for the dyeing of the modified fiber material with anionic textile dyes |
| CN104120544A (en) * | 2013-04-28 | 2014-10-29 | 罗莱家纺股份有限公司 | High-density coral fleece fabric and manufacturing method of high-density coral fleece fabric |
| CN108625208A (en) * | 2018-05-29 | 2018-10-09 | 无锡市凯诺纺织数码科技有限公司 | Fleece is washed without paper digital direct spray printing flower process entirely |
| CN112323522A (en) * | 2020-09-18 | 2021-02-05 | 杭州宏华数码科技股份有限公司 | Digital printing process of acetate fiber fabric |
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