CN115247008A

CN115247008A - Water-based pigment ink for printing shoe materials

Info

Publication number: CN115247008A
Application number: CN202210144522.3A
Authority: CN
Inventors: 余代英; 洪羚
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-10-28
Anticipated expiration: 2042-02-17
Also published as: CN115247008B

Abstract

The application relates to water-based pigment ink for printing shoe materials, which comprises the following components in parts by weight: 15-30% of organic pigment, 5-15% of ether organic solvent, 10-30% of alcohol organic solvent, 5-10% of waterborne polyurethane, 0.2-1.0% of waterborne wax emulsion and the balance of water. The water-based pigment ink provided by the application has the advantages of good moisture retention, no blockage of a spray head and good fluency; the adhesive can be matched with digital shoe material adhesive in the market, has excellent bonding performance, good fastness, friction resistance, bending resistance and abundant colors, and is water-resistant after surface treatment.

Description

Water-based pigment ink for printing shoe materials

Technical Field

The application relates to the technical field of printing, in particular to aqueous pigment ink for printing shoe materials.

Background

With the development of digital ink-jet technology, the printing industry slowly shifts to the direction of digital ink-jet, the traditional shoe material printing is mainly performed by screen printing, most of the used ink is oil ink, contains more organic solvents and has certain harmfulness to the environment and human bodies, so in recent years, the market hopes that the water-based ink with environmental protection can replace the traditional oil ink so as to reduce the pollution to the environment and the harm to the human bodies. On the other hand, the traditional screen printing process has the defects that the product color is not rich, the product is single, and personalized customization cannot be realized, on the contrary, the digital ink-jet scheme can realize the pursuit of the current generation for personalization by using the advanced ink-jet technology, the printing process is simple and quick, the shoe material can be printed by inputting pictures into specific software and then printing software of a printer, the color is rich and beautiful, and the precision is high. However, the existing ink is easy to bleed, resulting in poor pattern definition, and the pattern is easy to wrinkle after being bent for many times.

Disclosure of Invention

In view of this, the application provides the water-based pigment ink for printing the shoe materials, which adopts a reasonable ink system, has excellent wetting and leveling performances, clear patterns, is not easy to bleed and is resistant to bending.

The embodiment of the application provides water-based pigment ink for printing shoe materials, which comprises the following components in parts by weight: 15-30% of organic pigment, 5-15% of ether organic solvent, 10-30% of alcohol organic solvent, 5-10% of waterborne polyurethane, 0.2-1.0% of waterborne wax emulsion and the balance of water.

In one possible embodiment, the ink comprises the following components in parts by weight: 15-30% of organic pigment, 5-15% of ether organic solvent, 10-30% of alcohol organic solvent, 5-10% of aqueous aliphatic polyurethane, 0.2-0.8% of aqueous wax emulsion, 1-5% of surfactant and the balance of water.

In one possible embodiment, the aqueous wax emulsion includes one of a modified polyethylene wax emulsion, a modified polypropylene wax emulsion.

In one possible embodiment, the alcoholic organic solvent includes at least one of ethylene glycol, propylene glycol, glycerol, 1,2-glycerol, 1,2-propylene glycol, 1,5 pentanediol, 1,2-hexanediol, n-propanol, isopropanol, diethylene glycol, triethylene glycol, and tetraethylene glycol.

In one possible embodiment, the ether-based organic solvent includes at least one of diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, glycerol ether, ethylene glycol monopropyl ether, ethylene glycol isopropyl ether, ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, and dipropylene glycol monopropyl ether.

In one possible embodiment, the mass ratio of the alcohol organic solvent to the ether organic solvent is 1 (2-4).

In one possible embodiment, the surfactant comprises an acetylenic diol surfactant.

In a possible embodiment, the ink further comprises a bactericide, wherein the bactericide accounts for 0.1 to 0.5 percent of the weight of the ink.

In one possible embodiment, the ink satisfies at least one of the following characteristics a-d:

a. the viscosity of the ink is 7.0-8.5 cp;

b. the surface tension of the ink is 28 mN/m-30 mN/m;

c. the conductivity of the ink is 0.2-2.0 μm/cm;

d. the pH value of the ink is 7-9.

The application provides a water pigment ink that shoes material printing was used, through using waterborne aliphatic polyurethane resin, the collocation of ether organic solvent and alcohols organic solvent, make this prescription can match with digital shoes material adhesive cement on the market, the bonding property is excellent, the fastness is good, wear-resisting and resistant buckling, the colour is abundant, and aqueous wax emulsion has been added, the surface is water-fast and resistant buckling after handling, can improve production efficiency, have good moisture retention on the light G5 print head, unblock shower nozzle, the smoothness is good.

Detailed Description

While the following is a description of the preferred embodiments of the present invention, it should be noted that those skilled in the art can make various modifications and improvements without departing from the principle of the embodiments of the present invention, and such modifications and improvements are considered to be within the scope of the embodiments of the present invention.

In a first aspect, the present application provides an aqueous pigment ink for printing on shoe materials, wherein the ink comprises the following components by weight: 15-30% of organic pigment, 5-15% of ether organic solvent, 10-30% of alcohol organic solvent, 5-10% of waterborne polyurethane, 0.2-1.0% of waterborne wax emulsion and the balance of water.

In the scheme, the water-based pigment ink for printing the shoe materials is matched with digital shoe material adhesive cement on the market by using the water-based aliphatic polyurethane resin, the ether organic solvent and the alcohol organic solvent, has excellent binding performance, good fastness, friction resistance, bending resistance and rich colors, is added with the water-based wax emulsion, has water resistance and bending resistance after surface treatment, can improve the production efficiency, has good moisture retention on a light G5 printing head, does not block a spray head, and has good fluency.

As an alternative solution of the present application, the organic pigment includes at least one of a black organic pigment, a yellow organic pigment, a red organic pigment, and a blue organic pigment.

Alternatively, the organic pigment may include at least one of an azo pigment or a polycyclic pigment.

As an alternative embodiment of the present application, the azo pigment includes at least one of an azo lake pigment, an insoluble azo pigment, an azo condensation pigment, and a chelate azo pigment. The polycyclic pigment includes at least one of phthalocyanine pigment, perinone pigment, anthraquinone pigment, quinacridone pigment, dioxazine pigment, thioindigo pigment, isoindolinone pigment, and quinophthalone pigment.

The red or magenta organic pigment is preferably pigment red 19, pigment red 122, pigment red 146, pigment red 176, pigment red 184, pigment red 185, pigment red 202, pigment red 207, pigment red 209, pigment red 254, pigment red 269, pigment red 282, etc. from the viewpoint of weather resistance and color saturation;

the yellow organic pigment is preferably pigment yellow 17, pigment yellow 74, pigment yellow 83, pigment yellow 128, pigment yellow 139, pigment yellow 150, pigment yellow 151, pigment yellow 154, pigment yellow 155, pigment yellow 180, pigment yellow 181, pigment yellow 185, pigment yellow 213, or the like;

the blue organic pigment is preferably pigment blue 15, pigment blue 60, or the like.

Alternatively, the organic pigment may be present in the ink in an amount of, for example, 15%, 17%, 18%, 20%, 22%, 25%, 28% or 30% by weight, but is not limited to the recited values, and other values not recited in the recited range are also applicable.

Alternatively, the black organic pigment may be selected from British Diamond inkjet pastes D71K, D K, switzerland ryen OP-T, U.S. Kabot 400K, and the like, with the black pigment dispersion preferably being U.S. Kabot 400K. The blue pigment dispersion can be selected from British diamond inkjet color paste D71C, D C, switzerland ryen BG-PT, american cabot 450C, etc., and the blue pigment dispersion is preferably American cabot 450C. The red pigment dispersion can be selected from British diamond inkjet color paste D71M, D M, switzerland ryan E5B-PT VP3565, american cabot 480V and the like, and the red pigment dispersion is preferably American cabot 480V. The yellow pigment dispersion can be selected from British diamond inkjet color paste D71Y, D Y, switzerland ryan 4G-PT VP2669, american cabot 470Y, etc., and preferably Craiden 4G-PT VP2669.

As an alternative solution, the alcoholic organic solvent comprises at least one of ethylene glycol, propylene glycol, glycerol, 1,2-glycerol, 1,2-propylene glycol, 1,5 pentanediol, 1,2-hexanediol, n-propanol, isopropanol, diethylene glycol, triethylene glycol, and tetraethylene glycol. Preferred are glycerol, hexanediol and propylene glycol.

Alternatively, the weight ratio of the alcohol organic solvent in the ink may be controlled to be in the range of 10% to 30%, specifically 10%, 15%, 18%, 20%, 25%, 28%, or 30%, but is not limited to the recited values, and other values not recited in the above range are also applicable.

As an alternative embodiment of the present application, the ether organic solvent includes at least one of diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, glycerol ether, ethylene glycol monopropyl ether, ethylene glycol isopropyl ether, ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, and dipropylene glycol monopropyl ether. Diethylene glycol monobutyl ether or triethylene glycol monobutyl ether is preferred.

Alternatively, the weight ratio of the ether-based organic solvent in the ink may be controlled to be in the range of 5% to 15%, specifically 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 14%, or 15%, but is not limited to the above-mentioned values, and other values not shown in the above-mentioned value range are also applicable.

As an optional technical scheme of the application, the mass ratio of the alcohol organic solvent to the ether organic solvent is 1 (2-4). Specifically, the ratio of 1:2, 1, 2.5, 1.8, 1. Tests show that the mass ratio of the alcohol organic solvent to the ether organic solvent is 1 (2-4), so that the matching property of ink and shoe material white glue can be improved, the printed pattern is not easy to bleed and lace, the pattern contour is clear, and the definition of the pattern is increased.

As an alternative embodiment of the present application, the aqueous polyurethane is present in the form of a dispersion in the ink, and the weight ratio of the aqueous polyurethane in the ink may be specifically 5%, 6%, 7%, 8%, 9%, or 10%, but is not limited to the recited values, and other values not recited in the range of the values are also applicable.

Preferably, the aqueous polyurethane can be aqueous aliphatic polyurethane, and the weight ratio of the aqueous polyurethane in the ink is 5-10%. In a specific embodiment, the aqueous polyurethane can be WS-6110, WS-6021, WPC-101, preferably WS-6110.

As an optional technical scheme, the aqueous wax emulsion comprises one of modified polyethylene wax emulsion and modified polypropylene wax emulsion. In particular embodiments, the aqueous wax emulsion may be selected from one of Pico AQUACER 532, pico AQUACER 539, pico AQUACER 593, pico HORDAMER PE 35.

Alternatively, the weight ratio of the aqueous wax emulsion in the ink may be specifically 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, or 1.0%, but is not limited to the recited values, and other values not recited in the numerical range are also applicable. Preferably, the weight ratio of the aqueous wax emulsion in the ink is 0.2-0.8%.

As an alternative embodiment of the present application, the surfactant comprises an acetylenic diol surfactant. The surface active agent can be used as a surface tension regulator, and the acetylene glycol surface active agent has the effects of wetting and basic leveling.

The acetylene glycol surfactants may be, for example, 2,4,7,9-tetramethyl-5-decyne-4,7-diol, 3,6-dimethyl-4-octyne-3,6-diol, 3,5-dimethyl-1-hexyn-3-ol, etc. More specifically, one or more of Surfynol 420, surfynol 440, surfynol 465, surfynol 485, BYK-019, BYK-028, BYK-141, foamStar SI 2250, AF-103, TEGO 425, TEGO260, TEGO245, TEGO250 may be used. The use of Surfynol 465 or TEGO 425 is particularly preferred.

Alternatively, the surfactant may be present in the pigment ink in an amount of 1% to 5% by weight, specifically 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, or 5% by weight, and the like, but is not limited to the recited values, and other values not recited within the range of values are also applicable.

As an optional technical scheme of the application, the ink also comprises the following components in percentage by weight: 0.1-0.5% of bactericide which can be isothiazolinone bactericide, and can be at least one of American Dow bactericide BIOBAN BIT-10, american Dow bactericide BIOBAN BIT-20, american Austin bactericide PROXEL GXL and American Austin bactericide PROXEL CMG.

Alternatively, the weight ratio of the biocide in the ink may be specifically 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, or 0.5%, but is not limited to the recited values, and other values not recited within the range of values are also applicable.

The balance of the water can be at least one of tap water, deionized water and distilled water, and preferably, the water is deionized water, so that impurities in the ink can be reduced, and the influence on other components in the ink can also be reduced.

As a preferable technical scheme of the application, the ink comprises the following components in parts by weight: 15 to 30 percent of organic pigment, 5 to 15 percent of ether organic solvent, 10 to 30 percent of alcohol organic solvent, 5 to 10 percent of water-based aliphatic polyurethane, 0.2 to 0.8 percent of water-based wax emulsion, 1 to 5 percent of surfactant, 0.1 to 0.5 percent of bactericide and the balance of water.

The examples of the present application are further illustrated below in various examples. The present embodiments are not limited to the following specific examples. The present invention can be modified as appropriate within the scope of protection.

It should be noted that the percentages of the above and below components of the present invention are weight ratios, and are percentages of the components based on the total weight of the pigment ink, except for specific indications.

1. Preparation of aqueous pigment ink

Sequentially adding organic solvents into deionized water, stirring for 10-20 minutes, and uniformly mixing; adding the surfactant and the bactericide, stirring for 10-20 minutes, and uniformly mixing; adding the aqueous wax emulsion, stirring for 5-10 minutes, adding the aqueous aliphatic polyurethane, stirring for 20-40 minutes, and uniformly mixing; and adding the organic (inorganic) pigment dispersion, stirring for 60-120 minutes, uniformly mixing, and filtering by using a 0.6 micron filter membrane to obtain the final ink.

Examples 1 to 4:

blue (C), red (M), yellow (Y), black (BK) pigmented inks were formulated according to the above preparation methods and the weight percentage compositions shown in table 1 below.

TABLE 1

Comparative examples 1 to 4:

blue (C), red (M), yellow (Y), black (BK) pigment inks were formulated according to the above preparation methods and the compositions in weight percentages shown in table 2 below.

TABLE 2

Test items

(1) The physical and chemical parameters are tested, and the test results are shown in the following table 3:

TABLE 3

(2) Stability test

The pigment ink prepared in the table 1 is respectively applied to a smooth G5 nozzle 4-head elliptical machine for printing test, a printing medium is a special shoe material, smoothness during 4PASS printing is tested (continuous printing is carried out for 5 hours, pure color fast and pictures are tested), the state of a nozzle is kept after the ink is standby for 1 day, the matching performance with white cross paste is realized (whether the picture outline is clear or not and whether color bleeding exists among colors or not is observed), the bending resistance test is carried out by a special instrument for testing and folding 1000 times, the rubbing resistance test is carried out by a Y571 type friction fastness tester for testing, whether color fading exists or not and whether staining exists on rubbing cloth is observed, and the test results are shown in the following table 4:

TABLE 4

From the above test results, the following conclusions can be found:

examples 1 and 2 and comparative examples 1 and 2 can find that when the ratio of the ether organic solvent to the alcohol organic solvent in the formula is greater than 1:2, the ink fails the smoothness test on the machine and the standby effect is also deteriorated; when the proportion of the ether organic solvent to the alcohol organic solvent in the formula is less than 1:4, the printed pattern has unclear outline and each color of the picture can bleed mutually, so that the proportion of the ether organic solvent to the alcohol organic solvent in the formula is 1: the best effect was obtained in (2) to (4).

Examples 3 and 4 and comparative examples 3 and 4 show that the friction resistance and bending resistance of the finished product can be improved by adding the aqueous aliphatic polyurethane resin, and when the content of the aqueous aliphatic polyurethane resin accounts for 5-15% of the whole formula system, the printing smoothness and the standby property of the ink are not influenced, and other properties are not influenced.

Example 1 and comparative example 5 can find that the addition of the aqueous wax emulsion can effectively improve the washing fastness of the printed finished product.

In conclusion, the water-based pigment ink for printing the shoe material has good fluency and standby performance on a polishing G5 spray head, can be well matched with digital shoe material adhesive cement on the market by optimizing the proportion of all materials in the formula, and has the advantages of excellent binding performance, good finished product fastness, friction resistance, bending resistance, bright and bright printing color and water resistance.

Although the present application has been described with reference to preferred embodiments, it is not intended to limit the scope of the claims, and many possible variations and modifications may be made by one skilled in the art without departing from the spirit of the application.

Claims

1. The water-based pigment ink for printing the shoe material is characterized by comprising the following components in parts by weight: 15-30% of organic pigment, 5-15% of ether organic solvent, 10-30% of alcohol organic solvent, 5-10% of waterborne polyurethane, 0.2-1.0% of waterborne wax emulsion and the balance of water.

2. The aqueous pigmented ink of claim 1 wherein the ink comprises the following components in weight percent: 15-30% of organic pigment, 5-15% of ether organic solvent, 10-30% of alcohol organic solvent, 5-10% of aqueous aliphatic polyurethane, 0.2-0.8% of aqueous wax emulsion, 1-5% of surfactant and the balance of water.

3. The aqueous pigment ink of claim 1 or 2, wherein the aqueous wax emulsion comprises one of a modified polyethylene wax emulsion, a modified polypropylene wax emulsion.

4. The aqueous pigment ink of claim 1 or 2, wherein the alcoholic organic solvent comprises at least one of ethylene glycol, propylene glycol, glycerol, 1,2-glycerol, 1,2-propylene glycol, 1,5 pentanediol, 1,2-hexanediol, n-propanol, isopropanol, diethylene glycol, triethylene glycol, and tetraethylene glycol.

5. The aqueous pigment ink according to claim 1 or 2, wherein the ether-based organic solvent includes at least one of diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, glycerol ether, ethylene glycol monopropyl ether, ethylene glycol isopropyl ether, ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, and dipropylene glycol monopropyl ether.

6. The aqueous pigment ink according to claim 1 or 2, wherein the mass ratio of the alcohol organic solvent to the ether organic solvent is 1 (2 to 4).

7. The aqueous pigment ink of claim 2, wherein the surfactant comprises an acetylenic diol surfactant.

8. The aqueous pigment ink according to claim 1 or 2, wherein the ink further comprises a bactericide, the bactericide being present in the ink in a proportion of 0.1% to 0.5% by weight.

9. The aqueous pigment ink according to claim 1 or 2, wherein the ink satisfies at least one of the following characteristics a to d:

a. the viscosity of the ink is 7.0-8.5 cp;

b. the surface tension of the ink is 28 mN/m-30 mN/m;

c. the conductivity of the ink is 0.2-2.0 mu m/cm;

d. the pH value of the ink is 7-9.