Environment-friendly anti-wrinkle fabric auxiliary agent and anti-wrinkle treatment process thereof

Abstract

The invention discloses an environment-friendly anti-wrinkle fabric auxiliary agent and an anti-wrinkle treatment process thereof, and belongs to the technical field of fabric treatment.The environment-friendly anti-wrinkle fabric auxiliary agent comprises a first finishing liquid, a second finishing liquid and a third finishing liquid, the first finishing liquid can form a hydrogen bond with a fabric through a strong-polarity urethane group, the molecular internal force is enhanced, and the fabric keeps soft hand feeling; modified cross-linked polyamide molecules can permeate among fibers of the fabric, and the anti-wrinkle performance of the fabric is improved by means of the stability and elasticity of the molecular structure of the modified cross-linked polyamide molecules; n-hydroxybenzotriazole in the molecular structure of the second finishing liquid reacts with fibers in the fabric and plays a role in activating carboxyl, so that the molecular structure in the fibers of the fabric is denatured and dehydrated to generate anhydride of acetic acid, and the fibers of the fabric are subjected to anti-wrinkle modification; water is gradually removed in the film forming process of the modified polyurethane-alginate of a high-dispersion system of the No.3 finishing liquid, cross-linking reaction is carried out among molecules to form a network structure, and an adhesive film is firm, rich in elasticity and high in adhesive force, so that the fabric has excellent crease resistance.

Description

Technical Field

[0001] The present invention discloses a fabric treatment technology, in particular to an environment-friendly anti-wrinkle fabric auxiliary agent and its anti-wrinkle treatment process. Background Art

[0002] At present, the requirements for anti-wrinkle clothing in people's daily business needs are getting higher and higher. However, most anti-wrinkle clothing is achieved through two methods: fabric non-ironing and ready-made clothing non-ironing. Essentially, it is through the finishing of non-ironing resin finishing agents to endow the fabric with anti-wrinkle properties. The auxiliary agents for anti-wrinkle finishing are mostly: urea-formaldehyde resin, melamine-formaldehyde resin or etherified 2D resin, and generally a catalyst is also required. The catalyst is mostly metal salts. However, during the use of textiles, formaldehyde is easily released, which affects human health, and formaldehyde and aged formaldehyde will be generated during the production process. The generated formaldehyde has environmental pollution hazards. Therefore, it is particularly important to develop an environment-friendly anti-wrinkle green fabric. Summary of the Invention

[0003] The purpose of the present invention is to provide an environment-friendly anti-wrinkle fabric auxiliary agent and its anti-wrinkle treatment process to solve the above problems.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: An environment-friendly anti-wrinkle fabric auxiliary agent, Formula 1 includes the following components by mass fraction: 2-4 parts of polyurethane-modified polysiloxane, 4-6 parts of polyamide resin, 4-6 parts of menthol, 5-15 parts of surfactant complex ethanolamine ester EPO and 80 parts of water. During preparation, polyurethane-modified polysiloxane and polyamide resin are used as raw materials, and water is used as a solvent for synthesis. Menthol is dissolved by heating in a 45°C water bath, then mixed into ethanolamine ester EPO, and then added to water and mixed and stirred with polyurethane-modified polysiloxane and polyamide resin in a magnetic kettle. After the solution reaction is complete, it is concentrated under reduced pressure to obtain No. 1 finishing solution; Formula 2 includes the following components by mass fraction: 10-20 parts of benzotriazole, 5-10 parts of polyvinyl acetate, 10-20 parts of polyether-type polyurethane and 50-75 parts of water. During preparation, benzotriazole, polyvinyl acetate and polyether-type polyurethane are used as raw materials, and water is used as a solvent for synthesis, and they are mixed and stirred in a magnetic kettle. After the solution reaction is complete, it is concentrated under reduced pressure to obtain No. 2 finishing solution.

[0005] An anti-wrinkle treatment process for an environment-friendly anti-wrinkle fabric auxiliary agent, using the prepared environment-friendly anti-wrinkle fabric auxiliary agent, the process includes the following steps: Dyeing → Color matching → Fixing → Washing → Dehydration → Relaxing the fabric → Setting → Color checking → Printing → Drying and setting → Washing → Setting; Among them, in the water washing step, the No. 1 finishing solution with a temperature of 25 - 45°C and a dosage of 5 - 10 g / L is added to the dyeing vat, and the water washing time used is 15 - 30 min; Among them, in the setting step, the No. 2 finishing solution with a temperature of 20 - 25°C and a dosage of 30 - 80 g / L is added to the dyeing vat, the setting temperature used is 140 - 160°C, and the vehicle speed is 30 - 40 m / min.

[0006] Preferably, in the printing step, the fabric is printed with the No. 3 finishing solution, and the preparation process of the No. 3 finishing solution includes the following steps: Sodium alginate is dissolved in water at 35°C to obtain a sodium alginate solution with a mass fraction of 3%. After adjusting the pH value of the sodium alginate solution to 3.5 with a 0.5 mol / L hydrochloric acid solution, pure water is added to adjust to obtain a sodium alginate solution with a mass fraction of 2%. Then, 2.4 g / L of glycyrrhizic acid and 0.7 g / L of cyclohexyl isocyanate are successively added to the solution. After stirring in a stirring kettle at a speed of 1200 r / min for 1 h, it is left standing for 30 min and then stirred at a speed of 600 r / min for 24 h for sufficient reaction. After dialysis through a 3500 - Dalton dialysis membrane for 7 d, a high - concentration modified alginate solution is obtained; the high - concentration modified alginate solution is put into a 250 mL / L ethanol solution and mixed evenly according to a ratio of 3:5, and is put into a stirring kettle together with a 100 mL / L ammonia / ethanol solution with a volume ratio of 1:20 and stirred at 20 - 25°C for 12 h, and then depressurized and concentrated to obtain the No. 3 finishing solution.

[0007] Preferably, in the printing step, the wrinkle - resistant finishing of the No. 3 finishing solution includes the following steps. The printed fabric is immersed in the No. 3 finishing solution and left standing for 10 s, then padded once through a padding machine to obtain a fabric with a liquor - pickup rate of 30%. After ultrasonic treatment of the fabric for 30 min, it is dried at 20°C and then dried in an oven at 70°C for 5 min.

[0008] Compared with the prior art, the beneficial effects of the present invention are: First, the strong - polar urethane groups in the molecular structure of the modified cross - linked polyurethane in the No. 1 finishing solution can form hydrogen bonds with the fabric, enhance the internal molecular force, and keep the fabric with a soft hand feeling. The modified cross - linked polyamide molecules can penetrate between the fibers of the fabric and improve the wrinkle - resistant performance of the fabric by virtue of the stability and elasticity of its molecular structure; Second, in the No. 2 finishing solution, the modified benzotriazole - based polyvinyl acetate, the N - hydroxybenzotriazole in the molecular structure reacts with the fibers in the fabric and activates the carboxyl group, causing the molecular structure in the fabric fibers to denature and dehydrate to generate acetic anhydride, so that the fabric fibers obtain wrinkle - resistant modification; Thirdly, the modified polyurethane-alginate in the No. 3 finishing liquid can form a film attached to the fabric after padding and ultrasonic curing. During the film-forming process, moisture is gradually excluded, and the molecular chains and ionic groups are regularly arranged. There are not only electrostatic interactions and hydrogen bond forces, but also cross-linking reactions between molecules, forming a network structure. The glue film is firm and elastic, with strong adhesion, making the fabric have excellent wrinkle resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a chart of the wrinkle resistance performance of Formulation 1 with different component ratios. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0010] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0011] An environmentally friendly anti-wrinkle fabric auxiliaries, Formulation 1 includes the following components by mass fraction: 2-4 parts of polyurethane-modified polysiloxane, 4-6 parts of polyamide resin, 4-6 parts of menthol, 5-15 parts of surfactant complex ethanolamine ester EPO and 80 parts of water. When preparing, polyurethane-modified polysiloxane and polyamide resin are used as raw materials, and water is used as a solvent for synthesis. Menthol is dissolved by heating in a 45°C water bath, then mixed into ethanolamine ester EPO and then put into water to be mixed and stirred with polyurethane-modified polysiloxane and polyamide resin in a magnetic kettle. After the solution reaction is complete, it is concentrated under reduced pressure to obtain the No. 1 finishing liquid; After the polyurethane-modified polysiloxane and polyamide resin are mixed and reacted with menthol and ethanolamine ester EPO, a modified crosslinked polyurethane-polyamide emulsion is obtained. The particle size of the emulsion is below 0.05μm. The strong polar urethane groups in the molecular structure of the modified crosslinked polyurethane can form hydrogen bonds with the fabric, enhance the internal molecular force, and keep the fabric soft. The modified crosslinked polyamide molecules can penetrate between the fibers of the fabric and improve the wrinkle resistance of the fabric by virtue of the stability and elasticity of its molecular structure; The following are the schemes of Formulation 1 with different component ratios: Polyurethane modified polysiloxane, polyamide resin, menthol, surfactant compound ethanolamine ester EPO are prepared according to the following mass proportions: ①2 copies; 4 copies; 4 copies; 5 copies; ②3 copies; 5 copies; 5 copies; 10 copies; ③4 copies; 6 copies; 6 copies: 15 copies; like Figure 1 The figure shows the anti-wrinkle performance chart corresponding to the three schemes. The crease recovery angle method was used to take a 10cm*10cm cloth sample for experiment. According to the GB / T3819-1997 standard, with the increase of the amount of polyurethane modified polysiloxane, polyamide resin, menthol, and surfactant compound ethanolamine ester EPO, the anti-wrinkle performance first increased and then decreased. When using ②, i.e., 3 parts of polyurethane modified polysiloxane, 5 parts of polyamide resin, 5 parts of menthol, and 10 parts of surfactant compound ethanolamine ester EPO, the maximum crease recovery angle was reached and the anti-wrinkle performance was the best. The strong polar urethane group in the appropriate amount of polyurethane molecular structure can form hydrogen bonds with the fabric, and the modified cross-linked polyamide molecules can penetrate into the fibers of the fabric, relying on the stability and elasticity of its molecular structure to improve the anti-wrinkle performance of the fabric. However, too little content of polyurethane molecules and modified cross-linked polyamide molecules will affect the number of hydrogen bonds formed and the permeability to the fabric. At the same time, excessive polyurethane molecules and modified cross-linked polyamide molecules will hinder the formation of hydrogen bonds and the penetration of the fabric. Therefore, the best anti-wrinkle performance is obtained by selecting scheme ②.

[0012] Formula 2 includes the following components by mass fraction: 10-20 parts of benzotriazole, 5-10 parts of polyvinyl acetate, 10-20 parts of polyether polyurethane and 50-75 parts of water. During preparation, benzotriazole, polyvinyl acetate and polyether polyurethane are used as raw materials, water is used as solvent for synthesis, and mixing and stirring are performed in a magnetic kettle. After the solution reacts completely, it is concentrated under reduced pressure to obtain finishing solution No. 2; Benzotriazole, polyvinyl acetate and polyether polyurethane are mixed and reacted to obtain modified benzotriazole-based polyvinyl acetate. N-hydroxybenzotriazole in the molecular structure reacts with the fibers in the fabric and activates the carboxyl group, causing the molecular structure in the fabric fibers to denature and dehydrate to generate acetic anhydride, thereby making the fabric fibers wrinkle-resistant.

[0013] The traditional anti-wrinkle finishing auxiliaries use 50g / L-150g / L urea-formaldehyde resin, melamine formaldehyde resin or etherified 2D resin, and are equipped with 10g / L-40g / L metal salts as catalysts. The amount of catalyst added is 10%-20% of the resin dosage. However, under the action of moisture and heat, free formaldehyde will be released to varying degrees. The presence of more free formaldehyde on the fabric will affect its wearing performance. The use of formula 1 and formula 2 in environmentally friendly anti-wrinkle fabric auxiliaries will not produce additional free formaldehyde pollution.

[0014] An anti-wrinkle treatment process for an environmentally friendly anti-wrinkle fabric auxiliary agent, using the prepared environmentally friendly anti-wrinkle fabric auxiliary agent, and its process includes the following steps: Dyeing → Color matching → Fixing → Washing → Dehydration → Relaxing the fabric → Setting → Color checking → Printing → Dry setting → Washing → Setting; Among them, in the washing step, the No. 1 finishing solution with a temperature of 25 - 45°C and a dosage of 5 - 10 g / L is added to the dyeing vat, and the washing time used is 15 - 30 min; among them, in the setting step, the No. 2 finishing solution with a temperature of 20 - 25°C and a dosage of 30 - 80 g / L is added to the dyeing vat, the setting temperature used is 140 - 160°C, and the vehicle speed is 30 - 40 m / min; In the printing step, the fabric is printed with the No. 3 finishing solution, and the preparation process of the No. 3 finishing solution includes the following steps: Sodium alginate is dissolved in water at 35°C to obtain a sodium alginate solution with a mass fraction of 3%. The pH value of the sodium alginate solution is adjusted to 3.5 with 0.5 mol / L hydrochloric acid solution and then adjusted with pure water to obtain a sodium alginate solution with a mass fraction of 2%. Then, 2.4 g / L glycyrrhizic acid and 0.7 g / L cyclohexyl isocyanate are added to the solution in sequence. After stirring in a stirring kettle at a speed of 1200 r / min for 1 h, it is left standing for 30 min and then stirred at a speed of 600 r / min for 24 h for full reaction. After dialysis through a 3500 Dalton dialysis membrane for 7 d, a high-concentration modified alginate solution is obtained; the high-concentration modified alginate solution is put into an ethanol solution of 250 mL / L and mixed evenly in a ratio of 3:5, and is put into a stirring kettle together with an ammonia water / ethanol solution of 100 mL / L and a volume ratio of 1:20. After stirring at 20 - 25°C for 12 h, it is depressurized and concentrated to obtain the No. 3 finishing solution; In the printing step, the anti-wrinkle finishing of the No. 3 finishing solution includes the following steps. The printed fabric is immersed in the No. 3 finishing solution and left standing for 10 s, and then passed through a padding mangle once to obtain a fabric with a liquor pickup rate of 30%. The fabric is ultrasonically treated for 30 min, dried at 20°C, and then dried in an oven at 70°C for 5 min; The No. 3 finishing solution obtained by the condensation modification of sodium alginate and hydrochloric acid solution. During the reaction, the hydrophilic group of the alginate reacts with the prepolymer -NCO group to generate a hydrophilic polyurethane salt, obtaining a highly dispersed modified polyurethane - alginate. After padding and ultrasonic curing, it can adhere to the fabric to form a film. During the film-forming process, water is gradually excluded, and its molecular chains and ionic groups are arranged regularly. There are not only electrostatic interactions and hydrogen bond forces, but also cross-linking reactions occur between molecules, forming a network structure. The glue film is firm and elastic, with strong adhesion, making the fabric have excellent anti-wrinkle performance.

[0015] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0016] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An environmentally friendly anti-wrinkle fabric additive, characterized in that: Formula 1 includes the following components by mass fraction: 2-4 parts of polyurethane modified polysiloxane, 4-6 parts of polyamide resin, 4-6 parts of menthol, 5-15 parts of surfactant compound ethanolamine ester EPO and 80 parts of water. During preparation, polyurethane modified polysiloxane and polyamide resin are used as raw materials and water is used as solvent for synthesis. Menthol is dissolved by heating in a 45° C. water bath and then mixed into ethanolamine ester EPO. Menthol is then added into water and mixed with polyurethane modified polysiloxane and polyamide resin in a magnetic kettle for stirring. After the solution reacts completely, it is concentrated under reduced pressure to obtain finishing solution No.

1. Formula 2 includes the following components by mass fraction: 10-20 parts of benzotriazole, 5-10 parts of polyvinyl acetate, 10-20 parts of polyether polyurethane and 50-75 parts of water. During the preparation, benzotriazole, polyvinyl acetate and polyether polyurethane are used as raw materials, water is used as solvent for synthesis, and mixing and stirring are carried out in a magnetic kettle. After the solution reacts completely, it is concentrated under reduced pressure to obtain finishing liquid No.

2.

2. An anti-wrinkle treatment process of an environmentally friendly anti-wrinkle fabric auxiliary agent, characterized in that: The environmentally friendly anti-wrinkle fabric auxiliary agent prepared in claim 1 comprises the following steps: Dyeing → color matching → color fixing → washing → dehydration → loosening → shaping → core color → printing → dry setting → washing → shaping; In the washing step, a No. 1 finishing liquid having a temperature of 25-45°C and a dosage of 5-10 g / L is added to the dyeing vat, and the washing time is 15-30 min; Among them, in the setting step, the No. 2 finishing liquid with a temperature of 20-25°C and a dosage of 30-80g / L is added to the dyeing tank, the setting temperature adopted is 140-160°C, and the vehicle speed is 30-40m / min.

3. The anti-wrinkle treatment process of an environmentally friendly anti-wrinkle fabric auxiliary agent according to claim 2, characterized in that: In the printing step, the fabric is subjected to printing treatment by using a No. 3 finishing liquid, and the preparation process of the No. 3 finishing liquid comprises the following steps: Sodium alginate was dissolved in water at 35°C to obtain a sodium alginate solution with a mass fraction of 3%. The pH value of the sodium alginate solution was adjusted to 3.5 with a 0.5 mol / L hydrochloric acid solution, and then pure water was added to adjust the pH value to obtain a sodium alginate solution with a mass fraction of 2%. Then, 2.4 g / L of aqueous glycyrrhizic acid and 0.7 g / L of cyclohexyl isocyanate were added to the solution in sequence. After stirring at a speed of 1200 r / min for 1 hour in a stirring kettle, the mixture was allowed to stand for 30 minutes and then stirred at a speed of 600 r / min for 24 hours for full reaction. After dialyzing through a 3500 Dalton dialysis membrane for 7 days, a high-concentration modified alginate solution was obtained. The high-concentration modified alginate solution was added to a 250 mL / L ethanol solution in a ratio of 3:5 and mixed evenly. The mixture was added to a stirring kettle with a 100 mL / L ammonia water / ethanol solution with a volume ratio of 1:20, stirred at 20-25°C for 12 hours, and then concentrated under reduced pressure to obtain a No. 3 finishing solution.

4. The anti-wrinkle treatment process of an environmentally friendly anti-wrinkle fabric auxiliary agent according to claim 3, characterized in that: In the printing step, the anti-wrinkle finishing of No. 3 finishing liquid includes the following steps: immersing the printed fabric in No. 3 finishing liquid and letting it stand for 10 seconds, then passing it through a padding machine for one time to obtain a fabric with a liquid carrying rate of 30%, ultrasonically treating the fabric for 30 minutes, drying it at 20°C, and then drying it in a 70°C oven for 5 minutes.

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