阅读说明：本技术 一种涤纶布料印花工艺 (Printing process for polyester fabric ) 是由 屈宇成 于 2019-11-04 设计创作，主要内容包括：本发明公开了一种涤纶布料印花工艺,包括S1：制成带有凹纹的花纹槽；S2：将颜料浆、粘合剂和乳化浆按数量份数计,以10：1：5配制颜料,并喷涂在花纹槽内；S3：使用模具一围挡在花纹的四周,并刮平颜料的上表面；刮平后,静置5～10min,而后放入烘箱中进行烘干；S4：使用内轮廓与花纹的外轮廓相同且在底部的内边缘上开设有豁口的模具二围挡在花纹的四周,并使用涂布喷头在模具二内喷涂透明的PA或PU；S5：刮平保护层的上表面；刮平后,静置5～10min,而后放入烘箱中进行烘干；S6：使其自然冷却。其能够在涤纶的表面形成花纹,粘附牢固,不容易脱落；同时,颜色不容易磨损和氧化,鲜艳持久。(The invention discloses a polyester fabric printing process, which comprises the following steps of S1: making a pattern groove with concave patterns; s2: the pigment slurry, the adhesive and the emulsified slurry are mixed according to the parts by weight of 10: 1: 5 preparing pigment and spraying the pigment in the pattern groove; s3: using a first mold to enclose and block the periphery of the pattern, and scraping the upper surface of the pigment; after being strickleed off, standing for 5-10 min, and then putting into an oven for drying; s4: using a second mold with the inner contour being the same as the outer contour of the pattern and a notch being arranged on the inner edge of the bottom to enclose and block the periphery of the pattern, and using a coating nozzle to spray transparent PA or PU in the second mold; s5: scraping the upper surface of the protective layer; after being strickleed off, standing for 5-10 min, and then putting into an oven for drying; s6: allowing it to cool naturally. The pattern can be formed on the surface of the terylene, the adhesion is firm, and the terylene is not easy to fall off; meanwhile, the color is not easy to wear and oxidize, and is bright and durable.)

1. A printing process of polyester fabrics is characterized by comprising the following steps:

s1: flatly laying the polyester fabric on a hard platform, pressing the polyester fabric by using an embossing plate with salient points at the bottom to prepare a pattern groove with concave patterns, wherein the pressing pressure is 1.1-1.5 kPa, the temperature is 110-140 ℃, and the time is 5-12 s;

s2: the pigment slurry, the adhesive and the emulsified slurry are mixed according to the parts by weight of 10: 1: 5 preparing a pigment, and spraying the pigment in the checkered groove by using a coating nozzle, wherein the height of the sprayed pigment is between the bottom of the checkered groove and the upper surface of the polyester fabric;

s3: enclosing and blocking the periphery of the pattern by using a mold I with the same inner contour as the outer contour of the pattern, scraping the upper surface of the pigment by using a scraper, and simultaneously absorbing redundant pigment, wherein the depth H1 of the scraper is 0.1-1 mm, and the speed of the scraper is not more than 1 cm/s;

after strickling, standing the polyester fabric for 5-10 min, and then putting the polyester fabric into an oven to be dried, wherein the drying temperature is 50-65 ℃, and the drying time is 15-20 min;

s4: flatly paving the dried polyester fabric on a hard platform, blocking the periphery of the pattern by using a second mold with the inner contour same as the outer contour of the pattern and openings formed in the inner edge of the bottom, and spraying transparent PA or PU (polyamide) in the second mold by using a coating nozzle to serve as a protective layer;

s5: scraping the upper surface of the protective layer to the top of the notch by using a scraper, and simultaneously absorbing and removing redundant PA or PU, wherein the speed of the scraper is not more than 1 cm/s;

after strickling, standing the polyester fabric for 5-10 min, and then putting the polyester fabric into an oven to be dried, wherein the drying temperature is 73-85 ℃, and the drying time is 17-30 min;

s6: standing the terylene fabric for 2-3H at room temperature, and naturally cooling.

2. The polyester fabric printing process of claim 1, wherein the bottom of the embossing plate is provided with a convex pattern, the salient points are arranged on the bottom surface of the pattern in an array manner, the salient points are in an inverted circular truncated cone shape, and the ratio of the diameter of the lower bottom of each salient point to the distance between the two salient points is 1: 0.8 to 1.3.

3. The polyester fabric printing process of claim 1, wherein the scraper comprises an extension support and a cutter head, the cutter head is obliquely arranged at the bottom end of the extension support, the inclination angle of the cutter head is 10-20 degrees, a plurality of suction ports are formed in the position of the waist line of the outer surface of the cutter head in an array mode, a vacuum main pipe is formed in the top end of the cutter head, and vacuum branch pipes communicated with the suction ports and the vacuum main pipe are arranged between the suction ports and the vacuum main pipe.

4. The polyester cloth printing process according to any one of claims 1 to 3, characterized by comprising the following steps:

s1: flatly laying the terylene cloth on a hard platform, pressing the terylene cloth on the terylene cloth by using an embossing plate with salient points at the bottom to prepare a pattern groove with concave patterns, wherein the pressing pressure is 1.3kPa, the temperature is 125 ℃, and the pressing time is 8 s;

s2: the pigment slurry, the adhesive and the emulsified slurry are mixed according to the parts by weight of 10: 1: 5 preparing a pigment, and spraying the pigment in the checkered groove by using a coating nozzle, wherein the height of the sprayed pigment is between the bottom of the checkered groove and the upper surface of the polyester fabric;

s3: enclosing and blocking the periphery of the pattern by using a first mold with the same inner contour as the outer contour of the pattern, scraping the upper surface of the pigment by using a scraper, and simultaneously sucking redundant pigment, wherein the depth H1 of the scraper is 0.5mm, and the speed of the scraper is not more than 1 cm/s;

after strickling, standing the terylene cloth for 7.5min, and then putting the terylene cloth into an oven for drying, wherein the drying temperature is 57.5 ℃, and the drying time is 17.5 min;

s4: flatly paving the dried polyester fabric on a hard platform, blocking the periphery of the pattern by using a second mold with the inner contour same as the outer contour of the pattern and openings formed in the inner edge of the bottom, and spraying transparent PA or PU (polyamide) in the second mold by using a coating nozzle to serve as a protective layer;

s5: scraping the upper surface of the protective layer to the top of the notch by using a scraper, and simultaneously absorbing and removing redundant PA or PU, wherein the speed of the scraper is not more than 1 cm/s;

after strickling, standing the terylene cloth for 7.5min, and then putting the terylene cloth into an oven for drying at 79 ℃ for 23 min;

s6: standing the terylene cloth at room temperature for 2.5H, and naturally cooling.

Technical Field

The invention relates to a printing process, in particular to a printing process of polyester cloth.

Background

Dacron is widely used in production and life. The terylene cloth has good wrinkle resistance, and is firm, durable and free from hair sticking. However, because the surface of the polyester fabric is smooth, the polyester fabric is easy to warp and even fall off after being printed, the attractiveness of the fabric is seriously affected, and a common user can directly discard the polyester fabric at the moment, so that the waste of resources is caused.

Disclosure of Invention

The invention aims to solve the technical problem of providing a polyester fabric printing process, which can form patterns on the surface of polyester, is firmly adhered and is not easy to fall off; meanwhile, the color is not easy to wear and oxidize, and is bright and durable.

In order to solve the technical problem, the invention provides a polyester fabric printing process, which comprises the following steps:

s1: flatly laying the polyester fabric on a hard platform, pressing the polyester fabric by using an embossing plate with salient points at the bottom to prepare a pattern groove with concave patterns, wherein the pressing pressure is 1.1-1.5 kPa, the temperature is 110-140 ℃, and the time is 5-12 s;

s2: the pigment slurry, the adhesive and the emulsified slurry are mixed according to the parts by weight of 10: 1: 5 preparing a pigment, and spraying the pigment in the checkered groove by using a coating nozzle, wherein the height of the sprayed pigment is between the bottom of the checkered groove and the upper surface of the polyester fabric;

s3: enclosing and blocking the periphery of the pattern by using a mold I with the same inner contour as the outer contour of the pattern, scraping the upper surface of the pigment by using a scraper, and simultaneously absorbing redundant pigment, wherein the depth H1 of the scraper is 0.1-1 mm, and the speed of the scraper is not more than 1 cm/s;

after strickling, standing the polyester fabric for 5-10 min, and then putting the polyester fabric into an oven to be dried, wherein the drying temperature is 50-65 ℃, and the drying time is 15-20 min;

s4: flatly paving the dried polyester fabric on a hard platform, blocking the periphery of the pattern by using a second mold with the inner contour same as the outer contour of the pattern and openings formed in the inner edge of the bottom, and spraying transparent PA or PU (polyamide) in the second mold by using a coating nozzle to serve as a protective layer;

s5: scraping the upper surface of the protective layer to the top of the notch by using a scraper, and simultaneously absorbing and removing redundant PA or PU, wherein the speed of the scraper is not more than 1 cm/s;

after strickling, standing the polyester fabric for 5-10 min, and then putting the polyester fabric into an oven to be dried, wherein the drying temperature is 73-85 ℃, and the drying time is 17-30 min;

s6: standing the terylene fabric for 2-3H at room temperature, and naturally cooling.

Preferably, the bottom of the embossing plate is provided with a convex pattern, the salient points are arranged on the bottom surface of the pattern in an array manner, the salient points are in an inverted round table shape, and the ratio of the diameter of the lower bottom of each salient point to the distance between the two salient points is 1: 0.8 to 1.3.

Preferably, the scraper comprises an extension support and a cutter head, the cutter head is obliquely arranged at the bottom end of the extension support, the inclination angle of the cutter head is 10-20 degrees, a plurality of suction ports are formed in the waist line position of the outer surface of the cutter head in an array mode, a vacuum main pipe is formed in the top end of the cutter head, and vacuum branch pipes communicated with the suction ports and the vacuum main pipe are arranged between the suction ports and the vacuum main pipe.

A printing process of polyester fabrics is characterized by comprising the following steps:

s1: flatly laying the terylene cloth on a hard platform, pressing the terylene cloth on the terylene cloth by using an embossing plate with salient points at the bottom to prepare a pattern groove with concave patterns, wherein the pressing pressure is 1.3kPa, the temperature is 125 ℃, and the pressing time is 8 s;

s2: the pigment slurry, the adhesive and the emulsified slurry are mixed according to the parts by weight of 10: 1: 5 preparing a pigment, and spraying the pigment in the checkered groove by using a coating nozzle, wherein the height of the sprayed pigment is between the bottom of the checkered groove and the upper surface of the polyester fabric;

s3: enclosing and blocking the periphery of the pattern by using a first mold with the same inner contour as the outer contour of the pattern, scraping the upper surface of the pigment by using a scraper, and simultaneously sucking redundant pigment, wherein the depth H1 of the scraper is 0.5mm, and the speed of the scraper is not more than 1 cm/s;

after strickling, standing the terylene cloth for 7.5min, and then putting the terylene cloth into an oven for drying, wherein the drying temperature is 57.5 ℃, and the drying time is 17.5 min;

s4: flatly paving the dried polyester fabric on a hard platform, blocking the periphery of the pattern by using a second mold with the inner contour same as the outer contour of the pattern and openings formed in the inner edge of the bottom, and spraying transparent PA or PU (polyamide) in the second mold by using a coating nozzle to serve as a protective layer;

s5: scraping the upper surface of the protective layer to the top of the notch by using a scraper, and simultaneously absorbing and removing redundant PA or PU, wherein the speed of the scraper is not more than 1 cm/s;

after strickling, standing the terylene cloth for 7.5min, and then putting the terylene cloth into an oven for drying at 79 ℃ for 23 min;

s6: standing the terylene cloth at room temperature for 2.5H, and naturally cooling.

Compared with the prior art, the invention has the beneficial effects that:

the invention can form patterns on the surface of the terylene, has firm adhesion and is not easy to fall off; meanwhile, the color is not easy to wear and oxidize, and is bright and durable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to be able to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic flow chart of a printing process;

FIG. 2 is a schematic structural view of an embossing plate;

FIG. 3 is a schematic view of the construction of the doctor blade;

fig. 4 is a schematic top view of the first mold.

The method comprises the following steps of 1-polyester fabric, 2-pattern groove, 3-concave pattern, 4-pigment, 5-protective layer, 10-embossing plate, 100-pattern, 101-convex point, 20-coating nozzle, 30-scraper, 300-extension bracket, 301-cutter head, 302-suction opening, 303-vacuum branch pipe, 304-vacuum main pipe, 31-first mold, 40-second mold and 41-notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.