Production method and application of a fabric with a washed-out effect

Abstract

The present invention belongs to the technical field of textile production, and discloses a production method and application of a fabric with a simulated washed and faded effect, including the following steps: 1) Making a printing file; 2) Printing the printing file onto a film with reactive ink to obtain a transfer film, and laminating the front side of the fabric to be printed that has been treated with a base paste with the printed surface of the transfer film to complete the transfer; 3) Drying and steaming the fabric after the transfer in step 2) to develop the color; 4) Printing the reverse side of the fabric treated in step 3), drying and steaming to develop the color; 5) Washing, squeezing and shaping the fabric to obtain a fabric with a simulated washed and faded effect. The present invention also provides a ready-to-wear garment with a simulated washed and faded effect, which is made by cutting, sewing, washing and ironing the fabric with a simulated washed and faded effect. The fabric and ready-to-wear garment made by using the production method of the fabric with a simulated washed and faded effect of the present invention can not only achieve stable washed and faded effect, high color fastness, controllable color and fading position, and variable styles, but also realize clean and efficient production.

Description

Technical Field

[0001] The present invention relates to the technical field of textile production, and particularly relates to a production method and application of a cloth with a simulated washed-out effect. Background Art

[0002] Washed-out type ready-to-wear clothes are currently a popular category in the fashion industry, and their natural worn-out effect and color gradation are deeply favored by global consumers. The production process of washed-out type ready-to-wear clothes basically belongs to the process of first dyeing deeply and then washing out, so the waste of dyes and the excessive use of chemicals cannot be avoided during the processing. Currently, the dyeing of fabrics or ready-to-wear clothes with simulated washed-out effects is mainly completed by using sulfur dyes, vat dyes or coatings for coloring.

[0003] There are problems of surface ring dyeing in the dyeing of fibers with vat dyes or sulfur dyes. The clothes have a strong pungent smell remaining, and the wet rubbing fastness is poor, and it is easy to stain light-colored clothes during washing or wearing. Similarly, a large amount of binder is required for coating dyeing, and the wet rubbing fastness of the fabric obtained after washing out the dyeing is poor, which affects the hand feeling and wearing comfort of the ready-to-wear clothes. In addition, it is difficult to achieve multi-color effects in these washing-out methods in terms of color control, and the fading positions are random, and fixed colors or patterns cannot be obtained at specific positions.

[0004] In order to improve the washed-out effect, there is a method of fixing the color after washing to improve the color fastness of the ready-to-wear clothes, but this method cannot solve the consistency of colors at the same position between different ready-to-wear clothes. There is also a method of using potassium permanganate for oxidative washing out. Although it can solve the problem of poor color fastness of conventional vat dyes such as indigo, it still cannot well control the color and the fading position. Currently, there is a method of double-sided printing to produce ready-to-wear clothes with simulated washed-out effects, but due to the fact that reactive dyes do not fully react with the cloth fibers, there are serious staining problems, resulting in poor and unstable dyeing effects, which are difficult to industrialize, and the production efficiency is low.

[0005] Therefore, there is an urgent need to provide a production method that can not only achieve stable washed-out effects, high color fastness, controllable colors and fading positions, and variable styles, but also can achieve clean and efficient production without the need to dye deeply in advance and then wash out. Summary of the Invention

[0006] The present invention aims to solve one or more technical problems existing in the prior art, and at least provides a beneficial choice or creation condition. The present invention provides a production method and application of a cloth with a simulated washed-out effect. The cloth and ready-to-wear clothes made by the production method of the present invention have stable simulated washed-out effects, high color fastness, controllable colors and fading positions, variable styles, and can achieve clean and efficient production.

[0007] Inventive concept of the present invention: The present invention uses a double-sided printing method to produce a fabric with a washed-out effect. When printing on the front side, a monochloro-s-triazine type reactive ink is used, which has high stability. After the fabric is steamed and developed, the reactive ink reacts with cellulose hydroxyl groups to obtain stable covalent bonds and will not hydrolyze and break the bonds during the steaming and developing process of printing on the back side, ensuring the stability of the front color and obtaining a stable printing effect.

[0008] The monochloro-s-triazine type reactive dyes have high requirements for the content of alkali agents and moisture absorbents. After the fabric completed with transfer printing is dried and steamed and developed, the content of alkali agents and moisture absorbents decreases. In order to ensure the dyeing effect on the back side, the present invention uses a multi-reactive group reactive dye with low requirements for the content of alkali agents and moisture absorbents when printing on the back side, which can effectively solve the problem of poor coloring effect on the back side caused by the low content of alkali agents and moisture absorbents on the fabric to be printed after printing on the front side, thus significantly improving the coloring effect on the back side. And because the number of reactive groups of the multi-reactive group reactive dye is relatively large, the reaction probability between the dye and the fiber increases, and the dye fixation rate is high, making the color fastness of the fabric after printing on the back side high and not easy to fade.

[0009] At the same time, due to the low content of alkali agents and moisture absorbents in the fabric, during the steaming and developing process after printing on the back side, rapid steaming and developing with a relatively short steaming time is adopted to prevent the further decrease of the content of alkali agents and moisture absorbents and improve the fixation rate and dyeing stability on the back side.

[0010] Therefore, the present invention provides a production method of a fabric with a washed-out effect.

[0011] Specifically, a production method of a fabric with a washed-out effect includes the following steps:

[0012] 1) Making a printing file;

[0013] 2) Using reactive ink to print the printing file described in step 1) onto a film to obtain a transfer film, and laminating the front side of the fabric to be printed that has undergone primer treatment with the printing surface of the transfer film and feeding them into a transfer unit to complete the transfer printing;

[0014] 3) Drying and steaming and developing the fabric completed with transfer printing in step 2);

[0015] 4) Printing the back side of the fabric processed in step 3), drying and steaming and developing;

[0016] 5) Washing, squeezing water, and shaping the fabric obtained in step 4) to obtain the fabric with the washed-out effect.

[0017] Preferably, the specific operation of step 1) is to scan the pictures of sample clothes or the picture material library to obtain picture materials, and nest or directly cover the picture materials in the garment pattern to make a printing file.

[0018] Preferably, for step 1), if the pattern position does not need to be fixed, it does not need to be nested in the pattern.

[0019] Preferably, the reactive ink in step 2) is a monochloro-s-triazine type reactive ink, and the mass concentration of the dye in the reactive ink is 4.5-22%.

[0020] More preferably, the mass concentration of the dye in the reactive ink is 5-20%.

[0021] Specifically, for the front printing, a monochloro-s-triazine type reactive ink is used. After the fabric is steamed and developed, the reactive ink reacts with the cellulose hydroxyl group to obtain a stable covalent bond, and it will not hydrolyze and break the bond during the steaming and developing process of the back printing. Therefore, the stability of the front color can be ensured.

[0022] Preferably, in addition to the four basic colors of cyan, magenta, yellow, and black, auxiliary colors need to be added for printing, and the auxiliary colors are at least one of orange, scarlet, brilliant blue, navy blue, gray, and purple.

[0023] Preferably, the film in step 2) is selected from at least one of a PET film and a transfer paper.

[0024] Preferably, the thickness of the film in step 2) is 4.5-33 μm.

[0025] More preferably, the thickness of the film is 5-30 μm.

[0026] Preferably, the printing film in step 2) is printed using a piezoelectric nozzle.

[0027] Preferably, during the printing in step 2), the shrinkage rate that can be generated in the subsequent process needs to be reserved.

[0028] Preferably, the composition of the base paste in step 2) includes a humectant, a thickener, an alkali agent, an anti-reducing agent, and water.

[0029] Preferably, the humectant is urea.

[0030] Preferably, the thickener is selected from at least one of sodium alginate, modified starch, and modified cellulose.

[0031] More preferably, the thickener is sodium alginate.

[0032] Preferably, the alkali agent is selected from at least one of sodium hydroxide, sodium carbonate, and sodium bicarbonate.

[0033] More preferably, the alkali agent is sodium bicarbonate.

[0034] Preferably, the anti-reducing agent is anti-staining salt S (sodium m-nitrobenzenesulfonate).

[0035] Preferably, the weight ratio of the moisture absorbent is 4.5-16.5%.

[0036] More preferably, the weight ratio of the moisture absorbent is 5-15%.

[0037] Preferably, the weight ratio of the thickener is 0.45-5.5%.

[0038] More preferably, the weight ratio of the thickener is 0.5-5%.

[0039] Preferably, the weight ratio of the alkali agent is 0.9-3.3%.

[0040] More preferably, the weight ratio of the alkali agent is 1-3%.

[0041] Preferably, the weight ratio of the anti-reducing agent is 0.45-2.2%.

[0042] More preferably, the weight ratio of the anti-reducing agent is 0.5-2%.

[0043] Preferably, for the base paste treatment in step 2), the base paste treatment of the fabric to be printed is completed by padding.

[0044] Preferably, the application amount of the base paste in step 2) is 30-100% of the mass of the fabric to be printed.

[0045] More preferably, the application amount of the base paste is 40-80% of the mass of the fabric to be printed.

[0046] Preferably, the fabric to be printed in step 2) is woven from cellulose fiber and / or regenerated cellulose fiber.

[0047] Preferably, the fabric to be printed in step 2) can be a blended or interwoven fabric.

[0048] Preferably, the fabric to be printed in step 2) can be a woven or knitted fabric.

[0049] Preferably, in step 2), cold transfer reactive printing is used for the transfer printing, and the transfer printing and the base paste treatment are carried out simultaneously, that is, the base paste treatment of the front and back sides of the fabric to be printed is completed while printing the front side of the fabric.

[0050] Preferably, the specific operation of the transfer printing unit in step 2) is that after the printed surface of the transfer film is attached to the base paste-treated fabric to be printed, the pattern is transferred by pressing with a cold transfer printing roller.

[0051] Preferably, the transfer pressure of the transfer printing unit in step 2) is 0.1-0.8 MPa, and the transfer speed is 5-30 m / min.

[0052] Further preferably, the transfer pressure of the transfer unit is 0.2 to 0.5 MPa, and the transfer speed is 5 to 25 m / min.

[0053] Preferably, step 2) further includes separating the fabric from the film by a film take-up roller after the transfer is completed.

[0054] Preferably, the drying temperature in step 3) is 60 to 130 °C.

[0055] Further preferably, the drying temperature is 80 to 100 °C.

[0056] Preferably, the steaming pressure for steaming and developing color in step 3) is 0.09 to 0.55 MPa, the steaming temperature is 85 to 120 °C, and the steaming time is 4.5 to 16.5 min.

[0057] Further preferably, the steaming pressure for steaming and developing color is 0.1 to 0.5 MPa, the steaming temperature is 95 to 110 °C, and the steaming time is 5 to 15 min.

[0058] Preferably, when printing the reverse side of the printed fabric in step 4), one of digital direct injection, screen printing, and intaglio printing is used.

[0059] Further preferably, the screen printing uses a flat screen or a rotary screen.

[0060] Preferably, when printing the reverse side of the printed fabric in step 4), a multi-reactive group reactive dye is used for dyeing, and the number of reactive groups of the multi-reactive group reactive dye is not less than three.

[0061] Further preferably, the multi-reactive group reactive dye is selected from at least one of bis(vinylsulfone) monochlorotriazine reactive dyes, tri(vinylsulfone) reactive dyes, bis(monochlorotriazine) vinylsulfone reactive dyes, and bis(vinylsulfone) bis(monochlorotriazine) reactive dyes.

[0062] Specifically, the number of reactive groups of the multi-reactive group reactive dye is not less than three. Since the number of reactive groups is relatively large, the reaction probability between the dye and the fiber increases, making the dye have the characteristic of high fixation rate. At the same time, the multi-reactive group reactive dye has low requirements for the content of alkali agents and moisture absorbents, which can effectively solve the problem of poor coloring effect on the reverse side due to the low content of alkali agents and moisture absorbents on the fabric to be printed after printing the front side, thereby significantly improving the coloring effect on the reverse side.

[0063] Preferably, when using digital direct injection to print the reverse side, an active ink containing a multi-reactive group reactive dye is used for dyeing.

[0064] Preferably, the mass concentration of the multi-reactive group reactive dye in the active ink is 4.5 to 27.5%.

[0065] Further preferably, the mass concentration of the multi-reactive group reactive dye in the reactive ink is 5-25%.

[0066] Preferably, when using the screen printing or the gravure printing, a color paste containing a multi-reactive group reactive dye is used for dyeing.

[0067] Preferably, the mass concentration of the multi-reactive group reactive dye in the color paste is 0.9-33%.

[0068] Further preferably, the mass concentration of the multi-reactive group reactive dye in the color paste is 1-30%.

[0069] Preferably, the drying temperature in step 4) is 60-120 °C.

[0070] Further preferably, the drying temperature is 80-100 °C

[0071] Preferably, the steaming pressure for steaming and developing color in step 4) is 0.09-0.55 MPa, the steaming temperature is 85-115 °C, and the steaming time is 0.9-3.5 min.

[0072] Further preferably, the steaming pressure for steaming and developing color is 0.1-0.5 MPa, the steaming temperature is 95-105 °C, and the steaming time is 1-3 min.

[0073] Specifically, after printing the reverse side of the fabric, rapid steaming and developing color with a relatively short steaming time is used for steaming and developing color. Since the content of the alkali agent and the moisture absorbent in the fabric decreases after printing and steaming and developing color on the front side, rapid steaming and developing color can prevent the further decrease of the content of the alkali agent and the moisture absorbent, thereby ensuring high color fixation rate and stable color on the reverse side of the fabric.

[0074] Preferably, the water washing in step 5) includes pre-washing, warm water washing, hot water washing, soaping, and clear water washing.

[0075] Specifically, the function of the water washing is to wash away the sizing agent and the unreacted dye on the fabric after printing, enhance the color fastness, and make the fabric have good color fastness.

[0076] Preferably, the setting in step 5) is completed by a stentering machine.

[0077] Preferably, a setting aid needs to be added to the fabric during setting.

[0078] Preferably, the setting aid is selected from at least one of polyethylene wax softener, polyurethane, and stearic acid.

[0079] Preferably, the dosage of the setting aid is 1-50 g / L.

[0080] Further preferably, the dosage of the setting aid is 5-20 g / L.

[0081] Preferably, the setting temperature is 130 to 180 °C, and the setting time is 60 to 180 s.

[0082] More preferably, the setting temperature is 140 to 160 °C, and the setting time is 70 to 90 s

[0083] Specifically, the function of the setting is to facilitate cutting and sewing, facilitate the alignment of woven fabrics, prevent misalignment caused by the curling of the fabric itself during cutting and sewing, improve the sewing efficiency, and meet the requirements of the fabric width, gram weight shrinkage rate, hand feeling and other indicators through setting.

[0084] The present invention also provides a ready-made garment with a simulated washed and faded effect, and the ready-made garment is made of the fabric produced by the production method.

[0085] The present invention also provides a preparation method of a ready-made garment with a simulated washed and faded effect, and the preparation method is to cut, sew, wash, dry and iron the fabric to obtain a ready-made garment with a simulated washed and faded effect.

[0086] Preferably, the washing is general washing with softening or enzyme washing with softening.

[0087] Specifically, the washing can make the ready-made garment with a simulated washed and faded effect softer, and make the hand feeling, fabric texture and size of the ready-made garment meet the requirements.

[0088] Preferably, the general washing with softening is to add a softening agent to the ready-made garment with a simulated washed and faded effect for treatment, and the rest is water.

[0089] Preferably, the dosage of the softening agent is 0.18 to 5.5 g / L.

[0090] More preferably, the dosage of the softening agent is 0.2 to 5 g / L.

[0091] Preferably, the softening agent is selected from at least one of silicone soft oil, polyurethane, polyethylene, and stearic acid.

[0092] Preferably, the softening temperature for the general washing with softening is 25 to 60 °C, the bath ratio is 1:(9 to 33), and the time is 4.5 to 33 min.

[0093] More preferably, the softening temperature for the general washing with softening is 25 to 40 °C, the bath ratio is 1:(10 to 30), and the time is 5 to 30 min.

[0094] Preferably, the enzyme washing with softening includes enzyme washing and softening. The enzyme washing is to add an enzyme washing reagent to the ready-made garment with a simulated washed and faded effect, and the rest is water.

[0095] Preferably, the dosage of the enzyme washing reagent is 0.09 - 2.2 g / L.

[0096] More preferably, the dosage of the enzyme washing reagent is 0.1 - 2 g / L.

[0097] Preferably, the enzyme washing reagent is selected from at least one of acidic cellulase and neutral cellulase.

[0098] Preferably, the temperature of the enzyme washing is 25 - 65 °C, and the time is 9 - 33 min.

[0099] More preferably, the temperature of the enzyme washing is 30 - 60 °C, and the time is 10 - 30 min.

[0100] Preferably, the softener, dosage, and softening conditions for the enzyme washing with softening are the same as those for the general washing with softening.

[0101] Preferably, drum drying is used for drying, and the drying temperature is 35 - 90 °C.

[0102] More preferably, the drying temperature is 40 - 80 °C.

[0103] Compared with the prior art, the beneficial effects of the technical solution provided by the present invention are as follows:

[0104] In the present invention, a monochloro-s-triazine type reactive ink is used for front printing. It has high stability and can obtain a stable printing effect. At the same time, after the front of the fabric is steamed and developed, the reactive ink reacts with cellulose hydroxyl groups to form stable covalent bonds, and will not hydrolyze and break bonds during the steaming and developing process after reverse printing. Therefore, the stability of the front color can be ensured.

[0105] The monochloro-s-triazine type reactive ink used in the present invention has high requirements for the content of alkali agent and moisture absorbent. After the fabric that has completed transfer printing is dried and steamed and developed, the content of alkali agent and moisture absorbent decreases. In order to ensure the dyeing effect on the reverse side, a multi-reactive group reactive dye with low requirements for the content of alkali agent and moisture absorbent is used for reverse printing. It can effectively solve the problem of poor color development on the reverse side caused by the low content of alkali agent and moisture absorbent on the fabric to be printed after front printing, thus significantly improving the color development effect on the reverse side. And because the multi-reactive group reactive dye has a large number of reactive groups, the reaction probability between the dye and the fiber increases, and the dye fixation rate is high, making the color fastness of the fabric after reverse printing high, not easy to fade, and the dry rubbing fastness and wet rubbing fastness can reach level 5.

[0106] In the present invention, rapid steaming and developing with a relatively short steaming time is adopted during the steaming and developing process after reverse printing. Since the content of alkali agent and moisture absorbent in the fabric decreases after front printing and steaming and developing, rapid steaming and developing can prevent the further decrease of the content of alkali agent and moisture absorbent, and improve the fixation rate and dyeing stability on the reverse side.

[0107] When the present invention is used for cold transfer reactive printing, the underprinting paste treatment and the transfer printing are carried out simultaneously. While printing the front side, the underprinting paste treatment of both the front and back sides of the entire fabric to be printed is completed, greatly improving the production efficiency. Moreover, by using cold transfer reactive printing, the color and the fading position can be controlled. At the same time, since no chemical auxiliaries such as oxidants, reducing agents, and color fixatives are required during the production process, the production environment is clean and odorless. Description of the Drawings

[0108] Figure 1 It is a picture material diagram obtained by scanning the sample garment of Embodiment 1 of the present invention;

[0109] Figure 2 It is an effect diagram of the finished garment with the imitation wash and fade effect of Embodiment 1 of the present invention;

[0110] Figure 3 It is a picture material diagram obtained by scanning the sample garment of Embodiment 2 of the present invention;

[0111] Figure 4 It is an effect diagram of the finished garment with the imitation wash and fade effect of Embodiment 2 of the present invention;

[0112] Figure 5 It is a diagram of the color staining of the white cloth in the rubbing fastness test of the finished garments with the imitation wash and fade effects of Embodiments 1 - 2 and Comparative Examples 1 - 2 of the present invention. Detailed Embodiments

[0113] In order to make those skilled in the art more clearly understand the technical solution described in the present invention, the following examples are listed for illustration. It should be noted that the following examples do not limit the protection scope required by the present invention.

[0114] Unless otherwise specified, the raw materials, reagents or devices used in the following examples can be obtained from conventional commercial channels or can be obtained by existing known methods.

[0115] Embodiment 1

[0116] The specifications of the fabric to be printed: 40S / 1 (100% rayon) + 40S / 1 (50% rayon + 50% polyester) + 20D spandex, with a gram weight of 180 g / m2.

[0117] The finished garment with the imitation wash and fade effect is a round - neck T - shirt.

[0118] The composition of the underprinting paste is: 10% urea, 3% sodium bicarbonate, 1% anti - staining salt S, 2% sodium alginate, and the rest is water (by mass percentage).

[0119] A production method for a finished garment with an imitation wash and fade effect includes the following steps:

[0120] 1) Extract printing materials: Scan the sample garment or the pictures obtained from the picture material library to obtain the picture materials to be printed.

[0121] 2) Generate printing files: Directly cover the picture materials to be printed within the pattern with the shape of a finished garment to generate printing files, as Figure 1 shown.

[0122] 3) Generate transfer PET film: Reserve the shrinkage rate generated by printing and subsequent processes, and use monochloro-s-triazine type reactive ink (Hangzhou Honghua reactive digital printing ink) to print the printing files onto a PET film with a thickness of 14μm to obtain the transfer PET film.

[0123] Among them, the PET film is printed using a piezoelectric nozzle, with four primary colors of cyan, magenta, yellow, and black, plus four auxiliary colors of royal blue, orange, scarlet, and gray.

[0124] 4) Cold transfer reactive printing: Immerse the fabric to be printed in the base paste, and impregnate the fabric to be printed by a uniform padding mangle (the padding pressure is 0.5MPa during impregnation, and the application amount of the base paste on the fabric to be printed after impregnation is about 70%); after impregnation, the front side of the fabric to be printed is attached to the printed surface of the transfer PET film and enters the cold transfer printing cylinder (the applied transfer pressure is 0.4MPa, and the transfer speed is 6m / min) to complete the transfer printing. Subsequently, the fabric and the PET film are separated, and the fabric is dried (dried in an oven at a drying temperature of 80°C) to complete the front printing of the fabric.

[0125] 5) Steam fixation and color development treatment: Perform steam fixation and color development treatment on the fabric printed on the front side, with a steam pressure of 0.3MPa, a steam temperature of 102°C, and a steam time of 10min.

[0126] 6) Reverse printing: Print the reverse side through a rotary screen printing machine, print a solid color pattern on the reverse side, select a darker color on the front side for the color, use color paste for dyeing during reverse printing, and the color paste includes 1% of reactive black EEK-B, 0.2% of reactive blue SAC-R, 2% of sodium alginate paste, and 1% of anti-staining salt S. After printing, it is dried (dried in an oven at a drying temperature of 90°C) to complete the reverse printing of the fabric.

[0127] 7) Steam fixation and color development treatment: Perform steam fixation and color development treatment on the fabric printed on the reverse side, with a steam pressure of 0.25MPa, a steam temperature of 105°C, and a steam time of 3min.

[0128] 8) Obtain the fabric with a washed-out effect: Wash, squeeze, and shape the fabric after steam fixation and color development treatment to obtain the fabric with a washed-out effect.

[0129] Among them, the washing is completed by an open-width washing machine, including pre-washing, warm water washing, hot water washing, soap washing, and clean water washing; the shaping is completed by a stenter shaping machine, and the shaping formula is: polyethylene wax softener 2g / L, shaping temperature 150℃, shaping time 90s;

[0130] 9) Post-processing: The fabric with imitation wash-fading effect is cut, sewn, washed, dried and ironed to obtain the finished garment with imitation wash-fading effect, i.e., the round-neck T-shirt with imitation wash-fading effect, such as Figure 2 As shown;

[0131] Washing: Put the sewn garments into a rotary washing machine for washing, use general washing and soft washing water, washing conditions: containing silicone soft oil CWS-5 2g / L, bath ratio 1:20, 40℃ treatment for 10min, drain, dehydrate;

[0132] Drying: Put the washed clothes into the tumble dryer and dry them at a temperature of 70℃.

[0133] Example 2

[0134] Specifications of fabric to be printed: 10*10, 100% cotton, 3 / 1 woven right bias, density 72*36, weight 280g / m 2 .

[0135] The ready-to-wear garments with simulated faded effect are tops and outerwear.

[0136] The composition of the base slurry is: 12% urea, 3% sodium bicarbonate, 1% resist salt S, 1% sodium alginate, and the rest is water (by mass percentage).

[0137] A method for producing ready-made clothes with imitation washing and fading effects, the specific process is as follows:

[0138] 1) Extract printing materials: Scan the sample clothes or pictures obtained from the picture material library to obtain the picture materials that need to be printed;

[0139] 2) Generate printing files: embed the image material to be printed on the paper pattern with the shape of the garment, and generate printing files, such as Figure 3 As shown;

[0140] 3) generating a transfer PET film; reserving the shrinkage caused by printing and subsequent processes, using a monochlorotriazine type reactive dye ink to print the printing file on a PET film with a thickness of 19 μm to obtain a transfer PET film;

[0141] Among them, the printing of PET film adopts piezoelectric nozzle printing, with four primary colors of cyan, magenta, yellow and black, plus four auxiliary colors of royal blue, orange, bright red and gray;

[0142] 4) Cold transfer reactive printing: soak the fabric to be printed in the base paste, and use a uniform padder to roll the fabric to be printed (the pressure of the padder during rolling is 0.6MPa, and the amount of base paste applied to the fabric to be printed after rolling is about 65%); the front side of the fabric to be printed after rolling is attached to the printed surface of the transfer PET film, and enters the cold transfer printing roller (the applied transfer pressure is 0.5MPa, and the transfer speed is 5m / min) to complete the transfer printing, and then the fabric and the PET film are separated, and the fabric is dried (dried in an oven at a drying temperature of 90°C) to complete the front printing of the fabric;

[0143] 5) Steaming and coloring treatment: The printed fabric on the front side is subjected to steaming and coloring treatment, with a steaming pressure of 0.3 MPa, a steaming temperature of 102°C, and a steaming time of 12 minutes;

[0144] 6) Reverse printing: Print the reverse side by digital direct printing, print a pure color pattern on the reverse side, and select the darker color on the front side; use reactive inks for dyeing when printing the reverse side, including reactive red Avitera BF 10%, reactive yellow Avitera TVS 8%, reactive black PBVT 15%, reactive brilliant blue Avitera FT 12%. After printing, dry it (use oven drying at 80°C) to complete the reverse printing of the fabric;

[0145] 7) Steaming color treatment: The reverse printed fabric is subjected to steaming color treatment, with a steaming pressure of 0.3 MPa, a steaming temperature of 105°C, and a steaming time of 3 minutes;

[0146] 8) Producing fabric with imitation wash-fading effect: washing, squeezing and shaping the fabric after the steam-coloring treatment to obtain fabric with imitation wash-fading effect;

[0147] Among them, the washing is completed by an open-width washing machine, including pre-washing, warm water washing, hot water washing, soap washing, and clean water washing; the shaping is completed by a stenter shaping machine, and the shaping formula is: polyethylene wax softener 2g / L, shaping temperature 150℃, shaping time 90s;

[0148] 9) Post-processing: The fabric with imitation wash-fading effect is cut, sewn, washed and ironed to obtain the finished garment with imitation wash-fading effect, i.e., the coat with imitation wash-fading effect, such as Figure 4 As shown;

[0149] Washing: Put the sewn garments into a rotary washing machine for washing, using general washing and soft washing water, washing conditions: soft oil CWS-5 2g / L, bath ratio 1:20, 40℃ treatment for 15min, drain, dehydrate;

[0150] Drying: Put it in a tumble dryer and dry it at a temperature of 70°C.

[0151] Comparative Example 1

[0152] Comparative Example 1 is a knitted T-shirt on the market. The production process of this knitted T-shirt is that the fabric is dyed with sulfur dyes and then undergoes a washing and fading process after being made into finished clothing. Its color is light and close to that of Example 1.

[0153] Comparative Example 2

[0154] Comparative Example 2 is a woven coat on the market. The production process of this woven coat is that the fabric is dyed with sulfur dyes and then undergoes a washing and fading process after being made into finished clothing. Its color is dark and close to that of Example 2.

[0155] Performance Test: Rubbing Fastness Test

[0156] Samples to be tested: Finished clothing with simulated washing and fading effects of Examples 1 - 2 and Comparative Examples 1 - 2.

[0157] Rubbing fastness test method: It is determined and rated according to the standard of ISO 105-X12:2016 "Textiles - Tests for colour fastness - Part X12: Colour fastness to rubbing". That is, by using white cotton cloth to rub against the sample to be tested, the staining situation of the white cotton cloth is observed to judge the colour fastness of the coloured fabric. The rubbing fastness increases from 1 to 5 in sequence, where 1 indicates the worst rubbing fastness and 5 indicates the best rubbing fastness.

[0158] The rubbing fastness grades of the finished clothing with simulated washing and fading effects of Examples 1 - 2 and Comparative Examples 1 - 2 are shown in Table 1.

[0159] The staining situations of the white cloth in the rubbing fastness test of the finished clothing with simulated washing and fading effects of Examples 1 - 2 and Comparative Examples 1 - 2 are as Figure 5 shown.

[0160] Figure 5 Among them, A1, A2, A3, and A4 are the staining diagrams of the white cloth in the dry rubbing fastness test of the finished clothing with simulated washing and fading effects of Examples 1 - 2 and Comparative Examples 1 - 2 in sequence; B1, B2, B3, and B4 are the staining diagrams of the white cloth in the wet rubbing fastness test of the finished clothing with simulated washing and fading effects of Examples 1 - 2 and Comparative Examples 1 - 2 in sequence.

[0161] Table 1

[0162]

[0163] Table 1 shows the rubbing fastness grades and Figure 5 the staining situations of the white cloth in the rubbing fastness test indicate that: the dry rubbing and wet rubbing fastness of the finished clothing with simulated washing and fading effects in Examples 1 - 2 are better than those of the finished clothing with simulated washing and fading effects in Comparative Examples 1 - 2. This shows that the dry rubbing fastness and wet rubbing fastness of the finished clothing with simulated washing and fading effects obtained by the present invention are high. The washing and fading effect of the finished clothing with simulated washing and fading effects prepared by the production method of the present invention is stable, the colour fastness is high, it is not easy to fade during wearing and washing, and the production efficiency is high.

Claims

1. A production method of a fabric with a simulated washed and faded effect, characterized in that, It includes the following steps: 1) Prepare a printing file; 2) Use reactive ink to print the printing file described in step 1) onto a film to obtain a transfer film. Bond the front side of the fabric to be printed that has been treated with a base paste to the printed surface of the transfer film and feed them into a transfer unit to complete the transfer; 3) Dry and steam the fabric after the transfer in step 2) to develop the color; 4) Print the reverse side of the fabric treated in step 3), and dry and steam it to develop the color; 5) Wash, squeeze water, and shape the fabric obtained in step 4) to obtain the fabric with the imitation washed-out effect; The reactive ink described in step 2) is a monochloro-s-triazine type reactive ink; the thickness of the film described in step 2) is 4.5 - 33 μm; The base paste described in step 2) includes a moisture absorbent, a thickener, an alkali agent, and an anti-reducing agent; the moisture absorbent is urea; the thickener is selected from at least one of sodium alginate, modified starch, and modified cellulose; the alkali agent is selected from at least one of sodium hydroxide, sodium carbonate, and sodium bicarbonate, and the anti-reducing agent is anti-staining salt S; When printing the reverse side of the fabric, a multi-reactive group reactive dye is used for dyeing. The multi-reactive group reactive dye is selected from at least one of bis-vinylsulfone monochloro-s-triazine reactive dyes, tri-vinylsulfone reactive dyes, bis-monochloro-s-triazine vinylsulfone reactive dyes, and bis-vinylsulfone bis-monochloro-s-triazine reactive dyes.

2. The production method of a fabric imitating the washing and fading effect according to claim 1, characterized in that, The pressure of the transfer in step 2) is 0.1 - 0.8 MPa, and the speed of the transfer is 5 - 30 m / min.

3. The production method of a fabric imitating the washed and faded effect according to claim 1, characterized in that, The drying temperature in step 3) is 60 - 130 °C; the steaming pressure for steam coloring is 0.09 - 0.55 MPa, the steaming temperature is 85 - 120 °C, and the steaming time is 4.5 - 16.5 min.

4. The production method of a fabric imitating the washed and faded effect according to claim 1, characterized in that, When printing the reverse side of the fabric, one of digital direct injection, screen printing, and gravure printing is used.

5. The production method of a fabric imitating the washed and faded effect according to claim 1, characterized in that, The drying temperature in step 4) is 60 - 120 °C, the steaming pressure for steam coloring is 0.09 - 0.55 MPa, the steaming temperature is 85 - 115 °C, and the steaming time is 0.9 - 3.5 min.

6. A ready-to-wear garment with a simulated washed and faded effect, characterized in that, The ready-to-wear garment with the imitation washed-out effect is made of the fabric produced by the production method described in any one of claims 1 - 5.

7. A method for preparing ready-to-wear garments with a simulated washed and faded effect, characterized in that, The fabric produced by the production method described in any one of claims 1 - 5 is cut, sewn, washed, dried, and ironed to obtain a ready-to-wear garment with the imitation washed-out effect.

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