阅读说明：本技术 3d隐形印花工艺 (3D invisible printing process ) 是由 刘畅 于 2020-06-02 设计创作，主要内容包括：本发明涉及面料印花技术领域,具体公开了一种3D隐形印花工艺,包括以下步骤,(1)改织,将面料放置在恒温车间,在织机上使用超细纤维对面料进行经纬定格改织；(2)预处理；(3)去油处理；(4)低温定型；(5)反超喂定平；(6)面料表面定位定型；(7)涂隔热胶；先在定位定型的面料表面涂布底胶,再涂布配胶后,放入1～1.2MPa、60～65℃的烘干箱中进行真空烘干；(8)印花,采用海藻酸钠作原糊；通过印花机采用平网或辊筒印花的方式,在130℃的恒温条件下,印花机以25～35码/分钟的车速向前推进,进行平整烫花；(9)水洗改色；(10)成品定型。本发明具有能够克服温度不协调问题的特点。(The invention relates to the technical field of fabric printing, and particularly discloses a 3D invisible printing process which comprises the following steps of (1) weaving, wherein the fabric is placed in a constant-temperature workshop, and superfine fibers are used for carrying out longitude and latitude lattice weaving on the fabric on a weaving machine; (2) pre-treating; (3) deoiling; (4) shaping at low temperature; (5) b, reverse overfeeding and leveling; (6) positioning and shaping the surface of the fabric; (7) coating heat-insulating glue; coating a primer on the surface of the positioned and shaped fabric, coating and preparing the adhesive, and then putting the fabric into a drying box with the pressure of 1-1.2 MPa and the temperature of 60-65 ℃ for vacuum drying; (8) printing, adopting sodium alginate as raw paste; the method comprises the following steps that a flat screen or roller printing mode is adopted by a printing machine, the printing machine is pushed forward at a speed of 25-35 yards/min under a constant temperature condition of 130 ℃, and flat ironing is carried out; (9) washing with water to change color; (10) and (5) shaping a finished product. The invention has the characteristic of overcoming the problem of temperature incongruity.)

1.3D invisible printing process, which is characterized in that: comprises the following steps of (a) carrying out,

(1) the weaving is changed into the weaving way,

placing the fabric in a constant-temperature workshop, and performing warp and weft stop-motion texturing on the fabric by using superfine fibers on a weaving machine;

(2) the pretreatment is carried out in a pre-treatment way,

soaking the modified fabric in a constant-temperature sodium hydroxide solution for 1-2 hours, bleaching by adopting a hydrogen peroxide method, and washing with pure water for 2-4 times;

(3) the oil-removing treatment is carried out,

placing the pretreated fabric into hot water added with a deoiling agent and a soaping agent for cleaning for 40-60 min, wherein the temperature of the hot water is 55-65 ℃, then cleaning with cold water, and finally dehydrating;

(4) the shaping is carried out at a low temperature,

shaping the fabric through a shaping machine, wherein the shaping temperature is 0-20 ℃;

(5) the reverse overfeeding is carried out for fixing the feed,

adjusting the fabric entering speed to be lower than the speed of the setting machine to enable the fabric surface to be smooth and have a soft feeling;

(6) the surface of the fabric is positioned and shaped,

spraying a layer of polyurethane fixing agent on the surface of the fabric after the reverse overfeeding leveling so that the warp and weft yarns on the fabric are firm and are leveled by using a setting machine;

(7) coating heat-insulating glue on the surface of the substrate,

preparing 20-30 parts of silicon rubber, 3-5 parts of hydrogen-containing silicone oil, 30-40 parts of hot melt adhesive and 5-10 parts of methyl ester according to the following parts by weight;

coating a primer on the surface of the positioned and shaped fabric, coating and preparing the adhesive, and then putting the fabric into a drying box with the pressure of 1-1.2 MPa and the temperature of 60-65 ℃ for vacuum drying;

(8) printing is carried out on the paper by a printer,

adopting sodium alginate as raw paste, adding 9-12% of water repellent according to the weight proportion, and preparing printing paste with the viscosity of 3500-4000; the method comprises the following steps that a flat screen or roller printing mode is adopted by a printing machine, the printing machine is pushed forward at a speed of 25-35 yards/min under a constant temperature condition of 130 ℃, and flat ironing is carried out;

(9) the color is changed by water washing,

washing the printed fabric in a washing machine within 3.5-4 hours, controlling the water temperature at 55-60 ℃, washing for 15 minutes, and after washing, putting the raw material into a drying box with the pressure of 1-1.2 MPa and the temperature of 60-65 ℃ for vacuum drying; when drying, the cloth surface keeps 82-85% of dryness;

(10) the finished product is shaped,

carrying out secondary setting on the fabric by using a setting machine, wherein the setting temperature is 120-130 ℃, and the speed of the setting machine is 30-35 yards/min; and (5) after secondary shaping, obtaining a finished product.

2. The 3D invisible printing process according to claim 1, wherein: the fabric is formed by blending and weaving the following fibers in parts by weight: 10-18 parts of polyester fiber, 30-35 parts of Shengma fiber, 25-30 parts of modal fiber, 10-15 parts of flax fiber and 10-18 parts of nylon fiber, wherein the width of the fabric is 190 cm-220 cm.

3. The 3D invisible printing process according to claim 1, wherein: in the step (1), the superfine fibers are sprayed with water for prewetting, and the moisture regain of the fabric is controlled to be less than or equal to 15%.

4. The 3D invisible printing process according to claim 1, wherein: in the step (6), the polyurethane fixing agent is prepared from, by weight, 5-7 parts of a nonionic polyurethane associated thickener, 3-4 parts of attapulgite clay, 1.5-2 parts of a defoaming agent, 2-3 parts of a dispersing agent and 30-50 parts of triethanolamine.

5. The 3D invisible printing process according to claim 1, wherein: the base glue is hot melt glue with the viscosity of 14000-16000, and the speed of the setting machine is 40-50 yards/minute when the heat insulation glue is coated.

6. The 3D invisible printing process according to claim 1, wherein: the tolerance temperature of the prepared glue is 131-300 ℃.

Technical Field

The invention relates to the technical field of fabric printing, in particular to a 3D invisible printing process.

Background

The textile printing can be mainly divided into the following parts according to printing equipment: screen printing, roller printing, heat transfer printing, wood template printing, hollow plate printing, tie-dyeing-wax printing-splash printing, hand-painted printing and the like. Of commercial importance are two screen printing and roller printing, the third being thermal transfer printing, of relatively low importance, and other printing processes that are rarely used in textile production, such as traditional wood form printing, wax valine (i.e., wax resist) printing, yarn tie-dye printing, and resist printing. Many textile printing plants print fabrics by screen printing and roller printing, and most thermal transfer printing processes performed by the printing plants also print by this method.

Screen printing involves the preparation of a printing screen, once made of fine silk, for the printing process, known as screen printing, made of nylon, polyester or wire fabric with fine mesh stretched over a wooden or metal frame. The screen fabric is coated with an opaque non-porous film having a pattern, and the opaque film is removed to leave a fine mesh screen, which is the area where the pattern is to be printed. Most commercial screen fabrics are first coated with a photosensitive film and then patterned by removing the film from the pattern by a photosensitive process, and the fabric to be printed is then screened. The printing paste is poured into the printing frame and is forced to permeate through the meshes of the screen by the scraper. Each color in the printed design alone requires a screen in order to print a different color separately.

Roll printing, which is a high speed process capable of producing over 6000 yards of printed fabric per hour, is comparable to newspaper printing, and is also known as mechanical printing, where a pattern is printed on the fabric by means of an engraved copper cylinder (or drum). The copper cylinder can be engraved with very fine lines which are closely arranged, so that very fine and soft patterns can be printed. For example, fine, dense Peezlii swirl printing is one type of pattern that is printed by roller printing. The engraving of the cylinder is completely consistent with the design draft of a pattern designer, each design and color respectively needs one engraving roller, five-roller printing, six-roller printing and the like are commonly used for representing five-color or six-color roller printing in special printing processing of the textile industry, the roller printing is a mass printing production method with minimum use, and the yield is continuously reduced every year. This method is uneconomical if the lot size for producing each pattern is not very large.

The existing process for printing patterns on a garment material by adopting a screen or a roller mode has the problems that the maximum temperature which can be borne by the garment material is 120 ℃, the patterns can be printed on the garment material only under the temperature condition of 130 ℃, and the garment material is scalded when the temperature reaches 130 ℃, so that the two temperatures are inconsistent when the patterns are printed on the garment material.

Disclosure of Invention

The invention provides a 3D invisible printing process capable of overcoming the problem of inconsistent temperature, aiming at solving the technical problem of printing patterns on garment materials in the prior art.

The technical scheme of the invention is as follows: the 3D invisible printing process comprises the following steps,

(1) the weaving is changed into the weaving way,

placing the fabric in a constant-temperature workshop, and performing warp and weft stop-motion texturing on the fabric by using superfine fibers on a weaving machine;

the selected initial fabric is changed into the exclusive fabric required by garment processing production through the superfine fibers, and the size of the holes in the fabric can be determined according to actual needs in a warp and weft lattice mode;

(2) the pretreatment is carried out in a pre-treatment way,

soaking the modified fabric in a constant-temperature sodium hydroxide solution for 1-2 hours, bleaching by adopting a hydrogen peroxide method, and washing with pure water for 2-4 times;

partial oil stain on the modified fabric can be dissolved by using a sodium hydroxide solution, wherein the concentration of the sodium hydroxide solution is 38.5 percent; the hydrogen peroxide is used as a bleaching agent, so that the color of the fabric can be better removed, and the texture of the fabric cannot be damaged, wherein the concentration of the hydrogen peroxide is 35%;

(3) the oil-removing treatment is carried out,

placing the pretreated fabric into hot water added with a deoiling agent and a soaping agent for cleaning for 40-60 min, wherein the temperature of the hot water is 55-65 ℃, then cleaning with cold water, and finally dehydrating;

the temperature of the hot water is set so that the degreaser and the soaping agent can thoroughly remove oil stains on the fabric after the fabric is modified; the degreaser and soaping agent adopt the existing products available on the market;

(4) the shaping is carried out at a low temperature,

shaping the fabric through a shaping machine, wherein the shaping temperature is 0-20 ℃;

the dye on the fabric has poor sublimation fastness, and the fabric is stained when placed for sizing at low temperature;

(5) the reverse overfeeding is carried out for fixing the feed,

adjusting the fabric entering speed to be lower than the speed of the setting machine to enable the fabric surface to be smooth and have a soft feeling;

the shaping and the reverse overfeeding leveling are used for ensuring that the fabric has good elasticity, small shrinkage and good hand feeling and achieves the effect of high-density wool imitation;

(6) the surface of the fabric is positioned and shaped,

spraying a layer of polyurethane fixing agent on the surface of the fabric after the reverse overfeeding leveling so that the warp and weft yarns on the fabric are firm and are leveled by using a setting machine;

the fixing agent ensures that the warp and weft yarns on the fabric are firm, and the fabric is not influenced by the slippage of the seams of the warp and weft yarns on the fabric when being pulled to be flat, so that the effect of the imitated velvet is ensured;

(7) coating heat-insulating glue on the surface of the substrate,

preparing 20-30 parts of silicon rubber, 3-5 parts of hydrogen-containing silicone oil, 30-40 parts of hot melt adhesive and 5-10 parts of methyl ester according to the following parts by weight;

coating a primer on the surface of the positioned and shaped fabric, coating and preparing the adhesive, and then putting the fabric into a drying box with the pressure of 1-1.2 MPa and the temperature of 60-65 ℃ for vacuum drying;

the heat insulation glue is arranged to enable the garment material to bear the temperature of over 120 ℃ so as to facilitate the subsequent ironing of the required printing patterns on the garment material; the formed glue has good viscosity and high temperature tolerance, can also adapt to the characteristics of the garment material, and cannot generate great influence on the texture of the garment material; the dryness of the fabric coated with the heat-insulating glue is ensured, so that the subsequent pyrograph quality is ensured, and the influence caused by humidity is avoided;

(8) printing is carried out on the paper by a printer,

adopting sodium alginate as raw paste, adding 9-12% of water repellent according to the weight proportion, and preparing printing paste with the viscosity of 3500-4000; the method comprises the following steps that a flat screen or roller printing mode is adopted by a printing machine, the printing machine is pushed forward at a speed of 25-35 yards/min under a constant temperature condition of 130 ℃, and flat ironing is carried out; the setting of the constant temperature condition of 130 ℃ is to ensure the quality of the pattern on the fabric, the printing paste prepared according to the weight ratio can be best thermoprinted on the fabric only under the temperature condition of 130 ℃, and the best printing pattern is shown; the speed of the printing machine is set to ensure the flatness and effect of the pattern.

(9) The color is changed by water washing,

washing the printed fabric in a washing machine within 3.5-4 hours, controlling the water temperature at 55-60 ℃, washing for 10-15 minutes, and after washing, putting the raw material into a drying box with the pressure of 1-1.2 MPa and the temperature of 60-65 ℃ for vacuum drying; when drying, the cloth surface keeps 82-85% of dryness; the water temperature and the water washing time are set to comprehensively remove the surface floating color on the printed fabric, so that the printed fabric can achieve ideal color light;

the whole process is environment-friendly, no harmful liquid is added, the whole style is presented, the three-dimensional (3D) printing effect is a brand-new fashion fabric, and most importantly, the standard degree of national standard detection qualification is controlled.

(10) The finished product is shaped,

carrying out secondary setting on the fabric by using a setting machine, wherein the setting temperature is 120-130 ℃, and the speed of the setting machine is 30-35 yards/min; after secondary shaping, a finished product is obtained;

the specific limitation of the setting temperature and the speed of the setting machine is to ensure that the cloth surface of the final finished product is flat, smooth and soft.

Preferably, the fabric is formed by blending and weaving the following fibers in parts by weight: 10-18 parts of polyester fiber, 30-35 parts of Shengma fiber, 25-30 parts of modal fiber, 10-15 parts of flax fiber and 10-18 parts of nylon fiber, wherein the width of the fabric is 190 cm-220 cm. The fabric made of the components is light, thin, soft and smooth, has the functions of moisture prevention and warm keeping, and is soft in hand feeling, fine in texture, green and environment-friendly.

Preferably, in the step (1), the superfine fibers are sprayed with water for prewetting, and the moisture regain of the fabric is controlled to be less than or equal to 15%. The water spraying and pre-wetting of the superfine fiber and the control of the moisture regain of the fabric are to ensure the smoothness and smoothness of the fabric surface after the fabric is modified.

Preferably, in the step (6), the polyurethane fixing agent is prepared from, by weight, 5-7 parts of nonionic polyurethane associated thickener, 3-4 parts of attapulgite clay, 1.5-2 parts of defoamer, 2-3 parts of dispersant and 30-50 parts of triethanolamine. The polyurethane fixing agent prepared from the components can ensure that the warp and weft threads on the fabric are connected more firmly, and meanwhile, the texture of the fabric is not influenced.

Preferably, the primer is a hot melt adhesive with the viscosity of 14000-16000, and the speed of the setting machine is 40-50 yards/minute when the heat insulation adhesive is coated. The setting of the viscosity of the primer is to better coat and bond the prepared glue and the fabric, so as to play a role of a transition layer; the speed of the setting machine is limited to ensure that the heat-insulating glue is more uniformly coated on the fabric.

Preferably, the tolerance temperature of the compound is 131-300 ℃.

The invention has the following beneficial effects:

the heat insulation glue is coated on the surface of the fabric, so that the fabric can bear the temperature of more than 130 ℃, when pattern patterns are printed on the garment fabric in a screen mesh or roller mode, the pattern patterns to be printed can be well thermoprinted on the surface of the garment fabric under the constant temperature operation of 130 ℃, the fabric cannot be damaged due to the fact that the temperature of the fabric exceeds 120 ℃ highest tolerance temperature under the action of the heat insulation glue, the problem of temperature incompatibility does not exist, the whole process belongs to the environment-friendly mode, no harmful liquid is added, the finished product style after the whole printing is finished is light, thin, soft and smooth, the three-dimensional (3D) printing effect is a brand new fashion fabric, and the environment-friendly mode achieves the standard degree of national standard detection qualification.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.