阅读说明：本技术 一种纺织品的预处理液、抗水解纺织品及其印刷方法 (Pretreatment liquid for textiles, hydrolysis-resistant textiles and printing method thereof ) 是由 谢德寿 于 2020-12-23 设计创作，主要内容包括：本发明适用于纺织品技术领域,提供了一种纺织品的预处理液、抗水解纺织品及其印刷方法,该抗水解纺织品的印刷方法包括以下步骤：将预处理液施加在纺织品基材上进行预处理；用活性染料将图像印刷到预处理的纺织品基材上,并进行固化处理即可；其中预处理液包括以下组分：交联剂、增稠剂、抗起泡剂、润湿剂、添加剂,所述交联剂为氮丙啶交联剂或三聚氰胺-甲醛树脂。该预处理液有助于将活性染料固色到织物基质上,因此不再需要常规的蒸,洗或漂洗过程。因此,本发明提供的预处理液以及印刷方法能够生产高质量的印花纺织品,并且能够克服环境问题,特别是工业废水问题。(The invention is applicable to the technical field of textiles and provides a pretreatment liquid for textiles, an anti-hydrolysis textile and a printing method thereof, wherein the printing method of the anti-hydrolysis textile comprises the following steps: applying the pretreatment solution on the textile substrate for pretreatment; printing an image on the pretreated textile base material by using reactive dye, and carrying out curing treatment; the pretreatment liquid comprises the following components: cross-linking agent, thickening agent, anti-foaming agent, wetting agent and additive, wherein the cross-linking agent is aziridine cross-linking agent or melamine-formaldehyde resin. The pretreatment liquor helps to fix the reactive dye to the fabric substrate, thus eliminating the need for conventional steaming, washing or rinsing processes. Therefore, the pretreatment liquid and the printing method provided by the invention can produce high-quality printed textiles and can overcome environmental problems, particularly industrial wastewater problems.)

1. The pretreatment liquid for the textile is characterized by comprising the following components in percentage by mass: 10-30% of a cross-linking agent, 0.2-2% of a thickening agent, 0.1-0.3% of an anti-foaming agent, 0.05-0.5% of a wetting agent, 0.1-0.3% of an additive and the balance of water, wherein the sum of the mass percentages of the components is 100%; wherein the crosslinking agent is an aziridine crosslinking agent or a melamine-formaldehyde resin.

2. The pretreatment solution for textiles according to claim 1, wherein the pretreatment solution comprises the following components in percentage by mass: 15-25% of a cross-linking agent, 0.6-1.2% of a thickening agent, 0.15-0.25% of an anti-foaming agent, 0.1-0.2% of a wetting agent, 0.15-0.2% of an additive and the balance of water, wherein the sum of the mass percentages of the components is 100%.

3. A pretreatment solution for textiles as claimed in claim 1 or 2, wherein the melamine-formaldehyde resin is a partially etherified melamine-formaldehyde resin or a low methylol and low imino content-hypermethylated melamine-formaldehyde resin.

4. A pretreatment solution for textiles as claimed in claim 1 or 2, wherein the mass of the additive is 1% to 2% of the mass of the crosslinking agent.

5. A pretreatment liquid for textiles according to claim 1 or 2, wherein the anti-foaming agent is an emulsion of a polyether siloxane copolymer containing fumed silica.

6. A pretreatment liquid for textiles according to claim 1 or 2, wherein said wetting agent comprises sodium bis (2-ethylhexyl) sulfosuccinate or propylene glycol.

7. A pretreatment liquid for textiles according to claim 1 or 2, wherein the additive is a softening agent.

8. A method of printing hydrolysis resistant textiles, comprising the steps of:

applying the pretreatment liquid as claimed in any one of claims 1 to 7 to a textile substrate for pretreatment to obtain a pretreated textile substrate;

and printing an image on the pretreated textile substrate by using a reactive dye, and curing to obtain the hydrolysis-resistant textile.

9. The printing method of an anti-hydrolysis textile as claimed in claim 8, wherein in the step, when the cross-linking agent is an aziridine cross-linking agent, the curing temperature is 100-150 ℃; when the cross-linking agent is melamine-formaldehyde resin, the curing temperature is 175-185 ℃.

10. An anti-hydrolysis textile product processed by the printing method of claim 8 or 9.

Technical Field

The invention belongs to the technical field of textiles, and particularly relates to a pretreatment solution for textiles, an anti-hydrolysis textile and a printing method thereof.

Background

Textile printing is the process of applying colors, inks or dyes to a fabric (textile) in a specific pattern or design, for example, printing an image or picture onto the fabric.

Textile printing is in some aspects related to dyeing processes. However, textile dyeing generally refers to the uniform dyeing of an entire fabric with one or more colors to produce a colored fabric, while textile printing focuses on the specific printing of one or more colors on specific portions of one or more fabrics, particularly the desired pattern or design. Both the printing and dyeing processes for textiles aim at producing fixed fabrics, where the applied colour will bind to the fibres within the fabric, thereby resisting rubbing and washing.

There are traditionally many types of textile printing techniques including direct printing, resist dyeing, discharge printing and printing mordants in the desired pattern before dyeing the cloth. In general, textile printing techniques in the art aim to obtain significantly more crisp contours (improved definition) for the print on the textile, so that higher resolution (higher dpi) can be achieved for the print. Therefore, a correctly printed textile will also have higher use fastnesses, such as wash and rub fastness.

It is known in the art that some textile materials are treated with a pretreatment liquid prior to inkjet printing to improve the application properties of the printed textile. Some pre-treatment solutions can improve ink retention on textile substrates and achieve higher color strength, as well as provide better color fixation on textiles. For example, international Patent (PCT) publication No. WO 99/33669 discloses a method of pretreating textiles with cationic compounds to improve retention of disperse dye inks prior to printing, wherein the applied cationic compounds have a low molecular weight.

Another PCT publication No. WO 00/03081 also describes the pretreatment of textiles with a textile binder and melamine for inkjet printing with pigments. Further, as described in japanese patent document No.4,837,641, a divalent inorganic metal salt or a cationic compound and a crosslinking agent are used to prepare a fabric for ink-jet printing with a pigment. However, the above-mentioned patent techniques are mainly used for printing or dyeing of pigments, which are more relevant to man-made fibers than natural cellulose fibers, such as cotton and cotton blends of knitted and woven fabrics.

Natural cellulosic fibers (e.g., cotton and nylon) are typically dyed using reactive dyes, which are known to have excellent fastness properties due to molecular bonding that occurs during dyeing. However, the reactive dye fixing techniques existing in the textile printing and dyeing industry generally require steam and washing processes to wash away impurities, thus generating hazardous dyehouse waste water containing fibre reactive dye hydrolysates. Such colored wastewater has created critical wastewater treatment issues as well as aesthetic issues for the environment.

Although ion exchange resins can be used industrially to remediate dye-containing effluents, regeneration of the resin exchange capacity involves the use of organic solvents, which greatly increases the cost of the process. In addition to this, ozonation is also used for wastewater treatment of textile mill wastewater. However, little is known about the reaction intermediates and products formed during ozonation. In addition, existing textile printing technologies also require higher energy and water consumption, resulting in higher production costs. Accordingly, the shortcomings of the prior art can still be overcome in providing a textile printing process using reactive dyes, which remains a technical challenge in the art.

Disclosure of Invention

The embodiment of the invention aims to provide a pretreatment solution for textiles, aiming at solving the problems in the background art.

The embodiment of the invention is realized in such a way that the pretreatment liquid for the textile comprises the following components in percentage by mass: 10-30% of a cross-linking agent, 0.2-2% of a thickening agent, 0.1-0.3% of an anti-foaming agent, 0.05-0.5% of a wetting agent, 0.1-0.3% of an additive and the balance of water, wherein the sum of the mass percentages of the components is 100%; wherein the crosslinking agent is an aziridine crosslinking agent or a melamine-formaldehyde resin.

As a preferable scheme of the embodiment of the invention, the pretreatment solution comprises the following components in percentage by mass: 15-25% of a cross-linking agent, 0.6-1.2% of a thickening agent, 0.15-0.25% of an anti-foaming agent, 0.1-0.2% of a wetting agent, 0.15-0.2% of an additive and the balance of water, wherein the sum of the mass percentages of the components is 100%.

As another preferred embodiment of the present invention, the melamine-formaldehyde resin is a partially etherified melamine-formaldehyde resin or a low methylol and low imino content-hypermethylated melamine-formaldehyde resin.

As another preferable scheme of the embodiment of the invention, the mass of the additive is 1-2% of that of the cross-linking agent.

As another preferred version of the embodiments of the present invention, the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica. The anti-foaming agent may be used to prevent or reduce foam generated in the pretreatment liquid, which may affect the pre-printing and printing processes of the fabric, thereby affecting the printing quality of the finished product.

As another preferred version of an embodiment of the present invention, the wetting agent comprises sodium bis (2-ethylhexyl) sulfosuccinate or propylene glycol. Since textile fibers are naturally hydrophobic and non-hygroscopic, the wetting agent used in the pretreatment solution can reduce the surface tension of the textile and help water and other chemicals to be absorbed onto the fiber surface, thereby achieving wet processing and fixation of the colored textile substrate.

As another preferable aspect of the embodiment of the present invention, the additive is a softening agent.

As a further preferred option of embodiments of the present invention, the thickener may be any suitable type of commercially available thickener used in the textile industry. Some examples of thickeners used include guar gum, starch or tamarind tree. It can increase the viscosity of the pretreatment liquid. As previously mentioned, the viscosity or density of the pretreatment liquid may also be adjusted to accommodate different types of preprinting or coating techniques.

Another object of an embodiment of the present invention is to provide a printing method of an anti-hydrolysis textile, which includes the following steps:

applying the pretreatment solution on a textile substrate for pretreatment to obtain a pretreated textile substrate;

and printing an image on the pretreated textile substrate by using a reactive dye, and curing to obtain the hydrolysis-resistant textile.

Preferably, the pretreatment liquid is applied to the textile substrate by digital direct printing, screen printing, pneumatic nozzle spraying, rotary screen coating or filling, or the like.

This pre-treatment step is also referred to as a pre-printing or coating process of the textile. According to one embodiment of the invention, the pretreatment liquid may be applied to the textile substrate by various pre-printing or coating techniques, such as digital direct printing or screen printing, or pneumatic nozzle spraying or rotary screen coating, or padding. Different fabric printing plant manufacturers may have different production settings. Therefore, the pretreatment liquid used may be adjusted in different viscosity or density according to the type of technique used for coating. It is simple to operate and is suitable for use with any of the above techniques. Furthermore, the choice of the preprinting or coating technique may also depend on the type or size of the textile.

Preferably, the image is printed onto the pre-treated textile substrate by digital direct printing, screen printing, rotary screen coating, pad or transfer printing, or the like.

The image printing step is performed under wet conditions to allow a reaction between the pretreatment liquid and the reactive dye. Due to the nature of the covalent bond formed between the reactive dye and the textile substrate, the reactive dye can be used for printing, dyeing or dyeing textiles. Reactive dyes can be attached to textile substrates by chemical reactions to form covalent bonds between the molecules of the dye and the textile fibers to produce coloration of the textile. The dye or color may then become part of the fiber, thus reducing its likelihood of being removed or discolored during the wash, i.e., higher wash fastness values.

Similar to the pre-printing or coating step, the image printing step may also be performed by various techniques, including digital direct printing, screen printing, rotary screen coating, pad or transfer printing. For example, the transfer printing technique is described in further detail in the textile printing process of example 5. One or another additive may also be added to the reactive dye during the printing step. For example, the second additive may be a hydroxyl group.

Preferably, the reactive dye has a pH of 3.0 to 5.0 or 6.0 to 8.0.

Preferably, the reactive dye is a water-soluble dye or ink suitable for printing textiles. The reactive dyes used may be, for example, acid dyes, direct dyes or disperse dyes. The reactive dye used in the present invention may be any commercially available reactive dye having a desired pH value.

In another preferable embodiment of the invention, in the step, when the crosslinking agent is an aziridine crosslinking agent, the temperature of the curing treatment is 100-150 ℃; when the cross-linking agent is melamine-formaldehyde resin, the curing temperature is 175-185 ℃.

Preferably, the curing treatment may be heating or baking by means of hot air, infrared or microwave, etc.

The temperature applied to the textile substrate during the curing treatment step may depend on the formulation of the pre-treatment solution prepared. Once cured, the textile roll is ready for transfer to a storage area for delivery or further use. In some embodiments, the heat curing and drying processes may use different temperature settings to apply the same heater.

For example, the heating or drying process may be performed at a temperature in the range of 100 ℃ to 185 ℃. According to one embodiment of the invention, the process may be carried out at a temperature in the range of 100 ℃ to 150 ℃ to dry the printed textile. For example, for formulations using an aziridine crosslinking agent in the pretreatment solution, the printed fabric may be cured at room temperature, then dried at a temperature in the range of 100 ℃ to 150 ℃, preferably 120 ℃ to 130 ℃, and stored.

According to another embodiment of the present invention, the heating process may be performed at a temperature ranging from 175 ℃ to 185 ℃ to thermally cure the printed textile. For example, for formulations using melamine-formaldehyde resins in the pretreatment solution, the heat curing process may be performed at 175 ℃ to 185 ℃, preferably 180 ℃. The process can ensure better color fixing effect of the printed textiles.

Preferably, the textile substrate is a knitted or woven textile, a natural cellulosic fiber fabric, a regenerated cellulosic fabric, a synthetic fiber fabric, a cotton blend fabric, nylon, linen, polyester, hemp, rayon, artificial leather, or a combination of any two or more thereof.

Another object of the embodiments of the present invention is to provide a textile product with hydrolysis resistance, which is obtained by the above printing method.

The pretreatment liquid for the textiles provided by the embodiment of the invention is applied to printing of the textiles, and washing and rinsing processes can be omitted, so that harmful waste liquid is not generated in the textile finishing process, the toxicity is reduced, and the cost is saved. In particular, the pretreatment solution helps to fix reactive dyes to textile substrates, thus eliminating the need for conventional steaming, washing or rinsing processes. In conclusion, the pretreatment liquid and the printing method provided by the invention can produce high-quality printed textiles and can overcome environmental problems, particularly industrial wastewater problems.

The process of the present invention can eliminate the need for cooking, washing or rinsing by chemical mixtures in the pretreatment liquor and fixation between the pretreatment liquor and the reactive dyes on the fabric substrate. Conventional reactive printing or dyeing, thus eliminating or reducing the waste water problem of the textile industry. At the same time, the textiles produced can provide color fastness to dry and wet rubbing, which is industrially desirable. Because washing and rinsing processes are eliminated, the textiles produced by the hydrolysis-resistant process of the present invention can provide relatively high color consistency and vividness, so that the final textile finish can meet similar standards for commercial sample textiles.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Example 1

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 15kg of cross-linking agent, 0.6kg of thickening agent, 0.15kg of anti-foaming agent, 0.1kg of wetting agent and 0.15kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is partially etherified melamine-formaldehyde resin (density at 20 ℃ is 1220-1240 kg/m)³Viscosity at 25 ℃: 300-800 cP, pH: 8.5-9.5; water-miscible: miscible in all proportions); the thickening agent is guar gum; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, directly printing an image on a pretreated textile substrate by using a commercially available acidic reactive dye with a pH value of 4 under a humid condition through digital code, conventional silk screen coating, rotary silk screen printing or filling technology, and curing at a temperature of 180 ℃ to obtain the printed hydrolysis-resistant textile.

Example 2

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 25kg of cross-linking agent, 1.2kg of thickening agent, 0.25kg of anti-foaming agent, 0.2kg of wetting agent and 0.2kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is low-hydroxymethyl and low-imino content-hypermethylated melamine-formaldehyde resin (nonvolatile: minimum 98%, water content (K.F. method): maximum 1.5%, free formaldehyde: < 0.5%, viscosity (Brookfield, 25 ℃), 3000-10000cP, specific gravity (at 25 ℃) of 1.2, pH (10% aqueous solution): 6.0-8.0, solubility: easily soluble in water, alcohol, ketone, ester and glycol, partially soluble in aromatic hydrocarbon); the thickening agent is starch; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, printing an image on the pretreated textile substrate by using a commercially available neutral reactive dye ink with a pH value of 7 through digital direct printing, conventional screen coating, rotary screen printing or filling process under a humid condition, and curing at 178 ℃ to obtain the printed hydrolysis-resistant textile.

Example 3

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, will deal with18kg of coupling agent, 0.8kg of thickening agent, 0.18kg of anti-foaming agent, 0.15kg of wetting agent and 0.18kg of additive are mixed, and water is added to complement 100kg for uniform stirring, so as to obtain the pretreatment solution. Wherein the crosslinking agent is aziridine crosslinking agent (for water-based or solvent-based, the crosslinking with carboxyl groups at about 100-130 ℃ is very low VOC and 100% effective; solid content: 96-98%; density (at room temperature): 1.05 g/m)³(ii) a Viscosity: 150 to 250 mPas; pH: 9.5-10.5; water-miscible: generally miscible with aqueous dispersions of acrylic and polyurethane polymers); the thickener is tamarind tree; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, directly printing an image on a pretreated textile substrate by using a commercially available acid reactive dye ink with a pH value of 3.5 under a humid condition through digital code, coating a conventional silk screen, rotary screen printing or filling technology, and curing at a temperature of 150 ℃ to obtain the printed hydrolysis-resistant textile.

Example 4

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 22kg of cross-linking agent, 1kg of thickening agent, 0.22g of anti-foaming agent, 0.15kg of wetting agent and 0.18kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the crosslinking agent is an aziridine crosslinking agent (for aqueous or solvent based formulations, crosslinking with carboxyl groups is very low at about 100 ℃ to 130 ℃)VOC and 100% effective; solid content: 96% -98%; density (at room temperature): 1.05g/m³(ii) a Viscosity: 150 to 250 mPas; pH: 9.5-10.5; water-miscible: generally miscible with aqueous dispersions of acrylic and polyurethane polymers); the thickening agent is guar gum; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, printing an image on the pretreated textile substrate by using a commercially available neutral reactive dye with a pH value of 8 under a humid condition through digital direct printing, conventional silk screen coating, rotary silk screen printing or filling technology, and curing at a temperature of 100 ℃ to obtain the printed hydrolysis-resistant textile.

Example 5

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 20kg of cross-linking agent, 1kg of thickening agent, 0.2kg of anti-foaming agent, 0.15kg of wetting agent and 0.18kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is melamine-formaldehyde resin with low hydroxymethyl and low imino content and high methylation (nonvolatile: 98% at the lowest; water content (K.F. method): 1.5% at the highest; free formaldehyde: < 0.5%; viscosity (Brookfield, 25 ℃): 3000-10000 cP; specific gravity (at 25 ℃) 1.2; equal mass ratio mixture of pH (10% aqueous solution), the thickening agent is guar gum; the anti-foaming agent is polyether siloxane copolymer emulsion containing gas phase silicon dioxide; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, the pH value is 5.0-7.0; the additive is a commercial softener (white milky white flaky appearance; flash point: 150 ℃, solubility: water; melting point: 50-60 ℃, pH of 10% solution: 7.5-9.5; stability: stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

And S3, printing an image on the pretreated textile substrate by using a commercially available neutral reactive dye with the pH value of 6 under a humid condition through a transfer printing machine, and curing at the temperature of 180 ℃ to obtain the printed hydrolysis-resistant textile. Wherein the printing step may employ a step of pre-coating polyacrylate onto a transfer paper or film, and subsequently, the image on the coated paper or film may be transferred onto the pre-coated textile under wet conditions.

Example 6

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 10kg of cross-linking agent, 0.2kg of thickening agent, 0.1kg of anti-foaming agent, 0.05kg of wetting agent and 0.1kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is partially etherified melamine-formaldehyde resin (density at 20 ℃ is 1220-1240 kg/m)³Viscosity at 25 ℃: 300-800 cP, pH: 8.5-9.5; water-miscible: miscible with all proportions) in an equal mass ratio; the thickening agent is guar gum; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softening agent (white milky flake appearance, flash point: 150 deg.C)Solubility: is easily soluble in water; melting point: 50-60 ℃, pH value of 10% solution: 7.5-9.5; stability: stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, directly printing the image on the pretreated textile substrate by using acid active ink with the pH value of 5 in the market under the humid condition through digital codes, conventional silk screen coating, rotary silk screen printing or filling process, and curing at the temperature of 180 ℃ to obtain the printed hydrolysis-resistant textile.

Example 7

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 30kg of cross-linking agent, 2kg of thickening agent, 0.3kg of anti-foaming agent, 0.5kg of wetting agent and 0.3kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is partially etherified melamine-formaldehyde resin (density at 20 ℃ is 1220-1240 kg/m)³Viscosity at 25 ℃: 300-800 cP, pH: 8.5-9.5; water-miscible: miscible in all proportions); the thickening agent is guar gum; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, printing an image on the pretreated textile substrate by using a commercially available neutral reactive dye with a pH value of 7 under a humid condition through digital direct printing, conventional silk screen coating, rotary silk screen printing or filling technology, and curing at a temperature of 185 ℃ to obtain the printed hydrolysis-resistant textile.

Example 8

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 12kg of cross-linking agent, 1.5kg of thickening agent, 0.15kg of anti-foaming agent, 0.1kg of wetting agent and 0.15kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is partially etherified melamine-formaldehyde resin (density at 20 ℃ is 1220-1240 kg/m)³Viscosity at 25 ℃: 300-800 cP, pH: 8.5-9.5; water-miscible: miscible in all proportions); the thickener is guar gum, starch or tamarind tree; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, printing an image on the pretreated textile substrate by using a commercially available neutral reactive dye with a pH value of 6.5 under a humid condition through digital direct printing, conventional silk screen coating, rotary silk screen printing or filling processes, and curing at a temperature of 185 ℃ to obtain the printed hydrolysis-resistant textile.

Example 9

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 28kg of cross-linking agent, 0.5kg of thickening agent, 0.28kg of anti-foaming agent, 0.4kg of wetting agent and 0.25kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is partially etherified melamine-formaldehyde resin (density at 20 ℃ is 1220-1240 kg/m)³Viscosity at 25 ℃: 300-800 cP, pH: 8.5-9.5; water-miscible: miscible in all proportions); the thickening agent is guar gum; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, directly printing an image on a pretreated textile substrate by using a commercially available acidic reactive dye with a pH value of 4.5 under a humid condition through digital code, coating a conventional silk screen, rotary screen printing or filling technology, and curing at a temperature of 180 ℃ to obtain the printed hydrolysis-resistant textile.

Example 10

This embodiment provides a method of printing hydrolysis resistant textiles comprising the steps of:

s1, mixing 25kg of cross-linking agent, 2kg of thickening agent, 0.3kg of anti-foaming agent, 0.3kg of wetting agent and 0.2kg of additive, adding water to make up 100kg, and uniformly stirring to obtain the pretreatment solution. Wherein the cross-linking agent is partially etherified melamine-formaldehyde resin (density at 20 ℃ is 1220-1240 kg/m)³，25℃Viscosity at time (iv): 300-800 cP, pH: 8.5-9.5; water-miscible: miscible in all proportions); the thickening agent is guar gum; the anti-foaming agent is an emulsion of a polyether siloxane copolymer comprising fumed silica; the wetting agent comprises 70% (w/w) sodium bis (2-ethylhexyl) sulfosuccinate, 15% (w/w) propylene glycol and 15% (w/w) water, having a pH: 5.0 to 7.0; the additive is a commercially available softener (the appearance is white milky thin sheet, the flash point is 150 ℃, the solubility is easy to dissolve in water, the melting point is 50-60 ℃, the pH value of a 10% solution is 7.5-9.5, and the stability is stable in reactivity).

S2, pre-printing or coating the pre-treatment liquid on a textile substrate made of cellulose or cotton by digital direct printing, conventional screen printing or pneumatic nozzle spraying, or rotary screen coating or rolling, and performing pre-treatment to obtain a pre-treated textile substrate.

S3, directly printing the image on the pretreated textile substrate by using a commercially available acidic/neutral reactive dye/ink with the pH value of 6 under a humid condition through digital codes, coating a conventional silk screen, and carrying out rotary screen printing or filling processes, and curing at the temperature of 175 ℃ to obtain the printed hydrolysis-resistant textile.

The hydrolysis-resistant textile printed in the above embodiments 1 to 5 is subjected to a relevant performance index test, and the test result is as follows:

1. colorfastness to washing (ISO 105-C06: 2010 test C2S, single test, mechanical washing at 60 ℃ for 30 minutes, with 0.4% ECE reference detergent and 0.1% sodium perborate containing 25 steel balls) with the results: the color change was 4-5 steps.

2. Crocking fastness (ISO 105X 12-2001) with the results: dry rubbing 4-5 grade, wet rubbing 3 grade.

3. Light fastness (ISO 105B02-2014 (2000), method II) with the results: and (2) level.

4. Free formaldehyde content (ISO 14184/1-2011), results are: <5 ppm.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.