A hard finishing agent for a scratch-resistant textile fabric and a method for preparing the same

Abstract

The present application relates to the technical field of stiffening agent, in particular to a kind of stiffening finishing agent for scratch-resistant textile fabric and preparation method thereof, finishing agent main component is water-based epoxy resin and water-based curing agent;The water-based epoxy resin is bisphenol A epoxy resin emulsion;The water-based curing agent is alicyclic amine curing agent.The present application uses water-based thermosetting epoxy resin system as stiffening agent, after water-based epoxy resin curing film, the stiffness of fabric is significantly improved, and the firm crosslinking body type structure, the scratch resistance of fabric is significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stiffening agent, in particular to a kind of stiffening finishing agent for scratch-resistant textile fabric and preparation method thereof. BACKGROUND

[0002] Fabric stiffening agent is an important component of fabric finishing aid, which can improve the appearance of fabric, increase the elasticity and thickness of fabric, and give it a stiff hand feeling. Stiff finishing usually forms a layer of polymer sizing film on the fabric. The treated fabric can be widely used in decorative fabric, especially in the production of curtains, bags, tents, linings, shoes, warp knitted fabrics and linings.

[0003] There are many types of stiffening agents commonly used in the market, including melamine resin, urea-formaldehyde resin, starch and modified products, polyvinyl alcohol, acrylate, vinyl acetate, etc. Among them, low formaldehyde and formaldehyde-free products include starch and modified products, polyvinyl alcohol, acrylate, vinyl acetate, etc. Formaldehyde-containing products include urea-formaldehyde resin and melamine-formaldehyde products. The most common stiffening agent is cyanal resin polymer, which has the main disadvantage of high formaldehyde content. Since the release of formaldehyde by it is a balanced reaction, the fabric treated by it will release formaldehyde for a long time. Using corn starch as stiffening agent, the finished fabric is prone to mildew, and when processing colored fabric, it is easy to produce the disadvantage of dull color. Polyvinyl alcohol, vinyl acetate and acrylate stiffening agent raw materials are easy to obtain, the polymerization process is mature, the finished product price is appropriate, and the market coverage is wide, but the stiff finishing of the fabric surface is not resistant to scratching, and obvious scratches are easy to leave, affecting its use and appearance.

[0004] With the increasing strictness of environmental requirements for fabrics, the introduction of EU REACH regulations and the improvement of people's requirements for fabric performance and appearance, the present application provides a kind of stiffening finishing agent for scratch-resistant textile fabric and preparation method thereof. SUMMARY

[0005] The purpose of the present application is to provide a kind of stiffening finishing agent for scratch-resistant textile fabric and preparation method thereof to solve the problems raised in the background art.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of stiffening finishing agent for scratch-resistant textile fabric, mainly including water-based epoxy resin and water-based curing agent.

[0007] Further, the water-based epoxy resin is bisphenol A epoxy resin emulsion.

[0008] Further, the water-based curing agent is alicyclic amine curing agent.

[0009] Further, the water-based epoxy resin is any one or a mixture of more than one of liquid bisphenol A epoxy resin E51 emulsion, liquid bisphenol A epoxy resin E44 emulsion, and solid bisphenol A epoxy resin E20 emulsion.

[0010] Further, the water-based curing agent is any one or a mixture of more than one of N-aminoethylpiperazine, isophorone diamine, and 4,4'-diaminodicyclohexyl methane.

[0011] Further, the stiffening finishing agent further comprises a modifier, which is obtained by modifying an epoxy resin with a chlorosilane and then hydrating.

[0012] A preparation method of a stiffening finishing agent for a scratch-resistant textile fabric, comprising the following preparation process:

[0013] The water-based epoxy resin, the modifier, and the water-based curing agent are stirred uniformly, diluted with water, and a finishing agent is obtained.

[0014] Further, in the finishing agent, the molar ratio of the epoxy groups in the water-based epoxy resin to the active hydrogen of the amine groups in the water-based curing agent is (0.8-1.2):1.

[0015] Further, in the finishing agent, the mass of the modifier is 15-37 wt% of the water-based epoxy resin.

[0016] Further, the solid content of the finishing agent is 5-150 g / L.

[0017] Further, in application, the finishing agent is padded on the textile and baked to finish on the textile.

[0018] Further, the padding process condition is one dip and one pad, the bath ratio is (3-30):1, and the pad pickup rate is 55%-90%.

[0019] Further, the baking process condition is a baking temperature of 170°C and a baking time of 80-160 s.

[0020] Further, the modifier is prepared by the following method:

[0021] The hexamethanol melamine and (N,N-diethyl)aminodimethyl chlorosilane are mixed, heated to 75-85°C, and refluxed for 45-75 min; 5-hexenyl dimethyl chlorosilane is added, and the reaction is continued at 75-85°C for 1-2 h; and the chlorosilane is obtained by reduced pressure distillation.

[0022] The epoxy resin is taken, butyl acetate is added, heated to 40-50°C, stirred, the chlorosilane and a catalyst are added, and the reaction is continued for 6-10 h; washed with water, and the modified epoxy resin is obtained by reduced pressure distillation.

[0023] The modified epoxy resin and the emulsifier are uniformly mixed, heated to 60-70 DEG C, high-speed dispersed, deionized water is added, and the dispersion is continued for 30 min to obtain the modifier.

[0024] Further, the mass ratio of hexamethanol melamine, (N,N-diethyl) aminodimethyl chlorosilane, and 5-hexenyl dimethyl chlorosilane is 1:(1-3):(3.1-5.3).

[0025] Further, the mass ratio of epoxy resin, chlorosilane, and catalyst is 100:(4-10):(0.5-0.8).

[0026] The ratio of epoxy resin to butyl acetate is 2 g / mL.

[0027] The epoxy resin is epoxy resin E51 from Jiangsu Nantong Xingchen Synthetic Material Co., Ltd.

[0028] The catalyst is dibutyl tin dilaurate.

[0029] Further, the mass of the emulsifier is 10%-15% of the modified epoxy resin.

[0030] The emulsifier is a compound of Span-80 and sodium dodecyl sulfate with a mass ratio of 2:1.

[0031] The solid content of the modifier is 45%-55%.

[0032] In the high-speed dispersion process, the rotation speed is 2800-3500 rpm.

[0033] In the above technical solution, the hydroxyl groups in hexamethanol melamine react with (N,N-diethyl) aminodimethyl chlorosilane and 5-hexenyl dimethyl chlorosilane in sequence to obtain chlorosilane containing a dendritic structure and a tertiary amine; then, under the action of a catalyst, the chlorosilane reacts with the hydroxyl groups in the epoxy resin to obtain a silicone-modified epoxy resin; in this reaction system, the tertiary amine groups in the chlorosilane can neutralize the HCl gas generated in the reaction as an acid-binding agent, promote the reaction, and generate a quaternary ammonium salt structure; finally, the silicone-modified epoxy resin is hydrated to obtain a modifier having good compatibility with water-based epoxy resin and water-based curing agent. When the prepared finishing agent is applied, the quaternary ammonium salt structure in the modifier can be cationically catalyzed to promote the curing reaction between the water-based epoxy resin and the water-based curing agent, accelerate the reaction process, and realize the rapid curing of the finishing agent; and the cationic nature can improve the antistatic and antibacterial properties of the finished textile. The double bonds in the modifier can react with the amino groups in the water-based curing agent to increase the crosslinking density of the finishing agent on the surface of the textile, improve the hydrophobicity, and strengthen the corrosion resistance; and the tensile strength and tear strength of the prepared stiffened textile can be enhanced, and the scratch resistance can be further improved.

[0034] Compared with the prior art, the application has the following advantages:

[0035] The stiffening finishing agent for scratch-resistant textile fabric and the preparation method thereof of the application, by using the water-based thermosetting epoxy resin system as the stiffening agent, the water-based epoxy resin is cured to form a film, which significantly improves the stiffness of the fabric, and the firm cross-linked body type structure significantly improves the scratch resistance of the fabric. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of the specification, illustrate embodiments of the application and are used to explain the application, but do not constitute a limitation on the application. In the drawings:

[0037] Figure 1 is the infrared spectrum of the liquid bisphenol A epoxy resin E51 emulsion and the water-based curing agent N-aminoethyl piperazine in Example 1 of the application. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the application will be described below in a clear and complete manner. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0039] In the following implementation, the textile: high-density fine-fiber plain woven fabric, 3.50tex (32D), from Zhilian Co., Ltd.

[0040] Example 1: A preparation method of a stiffening finishing agent for scratch-resistant textile fabric and its application, comprising the following process steps:

[0041] Step 1. Preparation of finishing agent:

[0042] Take the water-based epoxy resin liquid bisphenol A epoxy resin E51 emulsion and the water-based curing agent N-aminoethyl piperazine curing agent, the molar ratio of the epoxy groups in the water-based epoxy resin to the active hydrogen of the amine groups in the water-based curing agent is 1:1, stir uniformly, dilute with water, and obtain a finishing agent with a solid content of 30g / L;

[0043] Step 2. Application of finishing agent:

[0044] Take the finishing agent, dip the textile, the dip-padding process conditions are: one dip and one pad, bath ratio 20:1, pad pickup rate 67%; baking, the baking process conditions are: baking temperature 170℃, baking time 120s; finish on the textile, and obtain stiffened textile.

[0045] Embodiment 2: a preparation method of a hardening finishing agent for a scratch-resistant textile fabric and application thereof, comprising the following process steps:

[0046] Step 1. Preparation of the finishing agent:

[0047] Take the aqueous epoxy resin liquid bisphenol A epoxy resin E44 emulsion and the aqueous curing agent N-aminoethyl piperazine curing agent, the molar ratio of the epoxy group in the aqueous epoxy resin to the active hydrogen of the amine group in the aqueous curing agent is 1:1, stir uniformly, dilute with water, and obtain a finishing agent with a solid content of 30 g / L;

[0048] Step 2. Application of the finishing agent:

[0049] Take the finishing agent, dip the textile, the dip-padding process conditions are: one dip-one pad, bath ratio 20:1, pad pickup rate 67%; baking, the baking process conditions are: baking temperature 170℃, baking time 120s; finish on the textile, and obtain a hardening textile.

[0050] Embodiment 3: a preparation method of a hardening finishing agent for a scratch-resistant textile fabric and application thereof, comprising the following process steps:

[0051] Step 1. Preparation of the finishing agent:

[0052] Take the aqueous epoxy resin solid bisphenol A epoxy resin E20 emulsion and the aqueous curing agent N-aminoethyl piperazine curing agent, the molar ratio of the epoxy group in the aqueous epoxy resin to the active hydrogen of the amine group in the aqueous curing agent is 1:1, stir uniformly, dilute with water, and obtain a finishing agent with a solid content of 30 g / L;

[0053] Step 2. Application of the finishing agent:

[0054] Take the finishing agent, dip the textile, the dip-padding process conditions are: one dip-one pad, bath ratio 20:1, pad pickup rate 67%; baking, the baking process conditions are: baking temperature 170℃, baking time 120s; finish on the textile, and obtain a hardening textile.

[0055] Embodiment 4: a preparation method of a hardening finishing agent for a scratch-resistant textile fabric and application thereof, comprising the following process steps:

[0056] Step 1. Preparation of the finishing agent:

[0057] Take the aqueous epoxy resin liquid bisphenol A epoxy resin E51 emulsion and the aqueous curing agent isophorone diamine curing agent, the molar ratio of the epoxy group in the aqueous epoxy resin to the active hydrogen of the amine group in the aqueous curing agent is 1:1, stir uniformly, dilute with water, and obtain a finishing agent with a solid content of 30 g / L;

[0058] Step 2. Application of the finishing agent:

[0059] The finishing agent is used for impregnation of the textile, and the impregnation process conditions are: one impregnation and one rolling, bath ratio 20:1, and rolling rate 67%; baking, and the baking process conditions are: baking temperature 170℃, and baking time 120s; finishing on the textile to obtain the stiffened textile.

[0060] Example 5: A preparation method of a stiffening finishing agent for a scratch-resistant textile fabric and its application, including the following process steps:

[0061] Step 1. Preparation of the finishing agent:

[0062] Take the water-based epoxy resin liquid bisphenol A epoxy resin E51 emulsion and the water-based curing agent 4,4'-diamino dicyclohexyl methane curing agent, the molar ratio of epoxy groups in the water-based epoxy resin to active hydrogen in the amine group of the water-based curing agent is 1:1, stir uniformly, dilute with water to obtain a finishing agent with a solid content of 30g / L;

[0063] Step 2. Application of the finishing agent:

[0064] The finishing agent is used for impregnation of the textile, and the impregnation process conditions are: one impregnation and one rolling, bath ratio 20:1, and rolling rate 67%; baking, and the baking process conditions are: baking temperature 170℃, and baking time 120s; finishing on the textile to obtain the stiffened textile.

[0065] Example 6: A preparation method of a stiffening finishing agent for a scratch-resistant textile fabric and its application, including the following process steps:

[0066] Step 1. Preparation of the finishing agent:

[0067] Take 1 mole of hexamethanol melamine and 1 mole of (N,N-diethyl) aminodimethyl chlorosilane, heat to 75℃, reflux for 45min; add 5.3 moles of 5-hexenyl dimethyl chlorosilane, continue to react at 75℃ for 1h; reduce pressure and distill to obtain a chlorosilane-containing product.

[0068] Take 100 mass parts of epoxy resin E51, add 44 mass parts of butyl acetate, heat to 40-50℃, stir, add 4 mass parts of chlorosilane-containing product, 0.5 mass parts of catalyst dibutyltin dilaurate, and react for 6h; wash with water, reduce pressure and distill to obtain a modified epoxy resin;

[0069] Mix 100 mass parts of modified epoxy resin and 10 mass parts of emulsifier (Span-80 and sodium dodecyl sulfate, mass ratio 2:1), heat to 60℃, high-speed disperse at a speed of 2800rpm for 2min, add deionized water, and continue to disperse for 30min to obtain a modified agent with a solid content of 45%;

[0070] Take water-based epoxy resin liquid bisphenol A epoxy resin E51 emulsion, modifier and water-based curing agent N-aminoethyl piperazine curing agent, the molar ratio of epoxy group in water-based epoxy resin to active hydrogen of amine group in water-based curing agent is 1:1, the mass of modifier is 15wt% of water-based epoxy resin, stir evenly, dilute with water, get finishing agent with solid content of 30g / L;

[0071] Step 2. Application of finishing agent:

[0072] Take finishing agent, dip textile, dip process conditions are: one dip one roll, bath ratio 20:1, roll rate 67%; baking, baking process conditions are: baking temperature 170℃, baking time 120s; finish on textile, get stiffened textile.

[0073] Example 7: a preparation method of stiffening finishing agent for scratch-resistant textile fabric and its application, including the following process steps;

[0074] Step 1. Preparation of finishing agent:

[0075] Take 1 mole of hexamethylol melamine, 2 moles of (N,N-diethyl) aminodimethyl chlorosilane mixture, heat to 80℃, reflux for 60min; add 4.2 moles of 5-hexenyl dimethyl chlorosilane, continue to react at 80℃ for 1.5h; reduce pressure distillation, get chlorosilane;

[0076] Take 100 mass parts of epoxy resin E51, add 44 mass parts of butyl acetate, heat to 45℃, stir, add 7 mass parts of chlorosilane, 0.6 mass parts of catalyst dibutyltin dilaurate, react for 8h; water washing, reduce pressure distillation, get modified epoxy resin;

[0077] Mix 100 mass parts of modified epoxy resin, 12 mass parts of emulsifier (Span-80 and sodium dodecyl sulfate, mass ratio 2:1), heat to 65℃, high speed dispersion at 3000rpm for 2min, add deionized water, continue to disperse for 30min, get modified agent with solid content of 50%;

[0078] Take water-based epoxy resin liquid bisphenol A epoxy resin E51 emulsion, modifier and water-based curing agent N-aminoethyl piperazine curing agent, the molar ratio of epoxy group in water-based epoxy resin to active hydrogen of amine group in water-based curing agent is 1:1, the mass of modifier is 15wt% of water-based epoxy resin, stir evenly, dilute with water, get finishing agent with solid content of 30g / L;

[0079] Step 2. Application of finishing agent:

[0080] The finishing agent is used for dip-padding on the textile, the dip-padding process condition is: one dip-padding, bath ratio 20:1, padding rate 67%; baking, the baking process condition is: baking temperature 170℃, baking time 120s; finishing on the textile, to obtain the stiffened textile.

[0081] Example 8: a preparation method of a stiffening finishing agent for a scratch-resistant textile fabric and its application, comprising the following process steps:

[0082] Step 1. Preparation of finishing agent:

[0083] Take 1 mole of hexamethanol melamine, 3 moles of (N,N-diethyl) aminodimethyl chlorosilane, heat to 85℃, reflux for 75min; add 3.1 moles of 5-hexenyl dimethyl chlorosilane, continue to react at 85℃ for 2h; reduce pressure distillation to obtain chlorosilane;

[0084] Take 100 mass parts of epoxy resin E51, add 44 mass parts of butyl acetate, heat to 50℃, stir, add 10 mass parts of chlorosilane, 0.8 mass parts of catalyst dibutyltin dilaurate, react for 10h; water washing, reduce pressure distillation to obtain modified epoxy resin;

[0085] Mix 100 mass parts of modified epoxy resin, 15 mass parts of emulsifier (Span-80 and sodium dodecyl sulfate, mass ratio 2:1), heat to 70℃, high speed dispersion at a speed of 3500rpm for 2min, add deionized water, continue to disperse for 30min to obtain a modified agent with a solid content of 55%;

[0086] Take water-based epoxy resin liquid bisphenol A epoxy resin E51 emulsion, modifier and water-based curing agent N-aminoethyl piperazine curing agent, the molar ratio of epoxy groups in the water-based epoxy resin to the active hydrogen of the amine groups in the water-based curing agent is 1:1, the mass of the modifier is 37wt% of the water-based epoxy resin, stir uniformly, dilute with water to obtain a finishing agent with a solid content of 30g / L;

[0087] Step 2. Application of finishing agent:

[0088] The finishing agent is used for dip-padding on the textile, the dip-padding process condition is: one dip-padding, bath ratio 20:1, padding rate 67%; baking, the baking process condition is: baking temperature 170℃, baking time 120s; finishing on the textile, to obtain the stiffened textile.

[0089] Comparative Example 1: a preparation method of a stiffening finishing agent for a scratch-resistant textile fabric and its application, comprising the following process steps:

[0090] Step 1. Preparation of finishing agent:

[0091] Take polyvinyl acetate stiffener, dilute with water to get finishing agent with solid content of 30 g / L;

[0092] Step 2. Application of finishing agent:

[0093] Take the finishing agent, dip the textile, the dip process conditions are: one dip and one roll, bath ratio 20:1, roll rate 67%; baking, baking process conditions are: baking temperature 170℃, baking time 120s; finishing on the textile to get stiffened textile.

[0094] Comparative example 2: a method for preparing a stiffening finishing agent for a scratch-resistant textile fabric and its application, comprising the following process steps:

[0095] Step 1. Preparation of finishing agent:

[0096] Take 100 parts by mass of epoxy resin E51, add 44 parts by mass of butyl acetate, heat to 40-50℃, stir, add 4 parts by mass of dichlorodimethylsilane, 0.5 parts by mass of catalyst dibutyltin dilaurate, react for 6h; water washing, reduced pressure distillation to get modified epoxy resin;

[0097] Mix 100 parts by mass of modified epoxy resin, 10 parts by mass of emulsifier (Span-80 and sodium dodecyl sulfate complex, mass ratio 2:1), heat to 60℃, high speed dispersion at a speed of 2800rpm for 2min, add deionized water, continue to disperse for 30min to get modified agent with solid content of 45%;

[0098] Take waterborne epoxy resin liquid bisphenol A epoxy resin E51 emulsion, modifier and waterborne curing agent N-aminoethylpiperazine curing agent, the molar ratio of epoxy groups in waterborne epoxy resin to active hydrogen in amine groups in waterborne curing agent is 1:1, the mass of the modifier is 15wt% of the waterborne epoxy resin, stir uniformly, dilute with water to get finishing agent with solid content of 30 g / L;

[0099] Step 2. Application of finishing agent:

[0100] Take the finishing agent, dip the textile, the dip process conditions are: one dip and one roll, bath ratio 20:1, roll rate 67%; baking, baking process conditions are: baking temperature 170℃, baking time 120s; finishing on the textile to get stiffened textile.

[0101] Experiment

[0102] Take the stiffened textile obtained in examples 1-8 and comparative examples 1-2 to make samples, and detect the performance of each sample and record the detection results:

[0103] Stiffness test: According to GB / T 18318 as the reference standard, the bending stiffness of the test textile in 0° (weft direction), 22.5°, 45°, 67.5°, 90° (warp direction) was measured by the inclined plane method, and the average value was taken;

[0104] Scratch resistance test: According to ISO 4586-2 as the reference standard, the scratch value of the textile was detected on the 413 type general scratch tester;

[0105] Tensile strength test: According to GB / T 3917.2 as the reference standard, the tensile strength and elongation at break of the stiffened textile sample were detected on the electronic fabric strength tester, the experimental temperature was 20℃, the tensile rate was 10mm / min, the sample was tested radially for three times, and the average value was taken;

[0106] Tear strength test: According to GB / T 3917.2 as the reference standard, the tear strength of the stiffened textile sample was detected on the electronic fabric strength tester, the sample was tested radially for three times, and the average value was taken;

[0107] Contact angle test: The contact angle of the sample was tested by a contact angle tester, the volume of the water droplet used for testing was 3μL, five points of each sample were measured, and the average value was taken;

[0108] Antistatic property test: The antistatic ability of the stiffened textile was tested by a static tester, the experimental temperature was 20℃, the relative humidity was 35%, the sample was balanced for 24h, the sample was tested for three times, and the average value was taken; the antistatic ability was taken as the performance index of the static voltage of the sample in the sample.

[0109]

[0110]

[0111] According to the data in the above table, the following conclusions can be clearly obtained:

[0112] The stiffened textiles obtained in Examples 1-8 were compared with the stiffened textiles obtained in Comparative Examples 1-2, and the test results showed that,

[0113] Compared with Comparative Example 1, the stiffened textiles obtained in Examples 1-8 had better stiffness, scratch resistance, tensile strength, tear strength and contact angle data; while the stiffened textile after polyvinyl acetate finishing in Comparative Example 1 had a stiffness comparable to that of the examples, but the scratch resistance was significantly poorer. This fully illustrates that the present application realizes the improvement of the stiffness, scratch resistance, mechanical properties and hydrophobic properties of the prepared finishing agent and the stiffened textile prepared therefrom.

[0114] Description Figure 1The infrared spectrum of liquid bisphenol A epoxy resin E51 emulsion and water-based curing agent N-aminoethyl piperazine. The characteristic peak of terminal epoxy group in the epoxy resin spectrum is 910cm -1 nearby, the characteristic peak of N-H bond in amine group in the curing agent spectrum is 3000-3600cm -1 The ring-opening addition reaction between the epoxy group of the epoxy resin and the amine group of the curing agent can form a three-dimensional crosslinked network structure.

[0115] Compared with Comparative Example 2, the stiffened textile obtained in Examples 6-8 has better tensile strength, tear strength and contact angle data, which shows that the setting of the modifier component and its process in the application can promote the improvement of the mechanical properties and hydrophobic properties of the prepared finishing agent and the stiffened textile.

[0116] It should be noted that, in this document, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0117] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and does not limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A process for the preparation of a hard finish for a scratch resistant textile fabric, characterized by: The preparation process comprises the following steps: Take water-based epoxy resin, modifier and water-based curing agent, stir evenly, dilute with water to obtain finishing agent; The modifier is prepared by the following method: Take hexamethanol melamine, (N, N-diethyl) amino dimethyl chlorosilane, heat to 75-85℃, reflux for 45-75min; add 5-hexenyl dimethyl chlorosilane, continue to react at 75-85℃ for 1-2h; reduce pressure distillation to obtain chlorosilane; Take epoxy resin, add butyl acetate, heat to 40-50℃, stir, add chlorosilane and catalyst, react for 6-10h; wash with water, reduce pressure distillation to obtain modified epoxy resin; Mix the modified epoxy resin and emulsifier evenly, heat to 60-70℃, high-speed dispersion, add deionized water, continue to disperse for 30min to obtain modifier; The water-based epoxy resin is bisphenol A epoxy resin emulsion; the water-based curing agent is alicyclic amine curing agent.

2. A process for the preparation of a hard finish for a scuff resistant textile fabric as claimed in claim 1, characterized in that: In the finishing agent, the molar ratio of epoxy groups in the water-based epoxy resin to the active hydrogen of amine groups in the water-based curing agent is (0.8-1.2):

1.

3. The method for preparing a stiffening finishing agent for scratch-resistant textile fabrics according to claim 1, wherein: The solid content of the finishing agent is 5-150g / L.

4. The method for preparing a stiffening finishing agent for scratch-resistant textile fabrics according to claim 1, wherein: In the finishing agent, the mass of the modifier is 15-37wt% of the water-based epoxy resin.

5. The method for preparing a stiffening finishing agent for scratch-resistant textile fabrics according to claim 1, wherein: The molar ratio of hexamethanol melamine, (N, N-diethyl) amino dimethyl chlorosilane and 5-hexenyl dimethyl chlorosilane is 1:(1-3):(3.1-5.3).

6. The method for preparing a stiffening finishing agent for scratch-resistant textile fabrics according to claim 1, wherein: The water-based epoxy resin is any one or more of liquid bisphenol A epoxy resin E51 emulsion, liquid bisphenol A epoxy resin E44 emulsion and solid bisphenol A epoxy resin E20 emulsion.

7. The method for preparing a stiffening finishing agent for scratch-resistant textile fabrics according to claim 1, wherein: The water-based curing agent is any one or more of N-aminoethyl piperazine, isophorone diamine and 4,4'-diamino dicyclohexyl methane.

8. A hardening finishing agent for anti-scratch textile fabric prepared by the preparation method of any one of claims 1-7.

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