Crease-resistant stretch-proof curtain cloth and preparation process thereof

Abstract

The invention belongs to the technical field of curtain fabric manufacturing, and discloses an anti-wrinkle stretch-proof curtain fabric and a preparation process. The anti-wrinkle stretch-proof curtain cloth is sequentially provided with a cloth base layer, a flexible layer and an anti-wrinkle coating from inside to outside. The raw materials of the flexible layer comprise TPU, an ethylene-vinyl acetate copolymer, hyperbranched resin, hydroxymethyl cellulose, nano-silver and an organic solvent, and the raw materials of the anti-wrinkle coating comprise TPU, ethyl methacrylate, acrylamide, vanillin, silicon dioxide-titanium dioxide composite aerogel powder, an initiator and an organic solvent. The anti-wrinkle and stretch-proof curtain fabric has a lasting anti-wrinkle effect, good tear resistance and stretch-proof performance and a good antibacterial function, the preparation process is relatively simple, the operation difficulty is low, and industrial production and manufacturing are convenient to achieve.

Description

Technical Field

[0001] The present application relates to the technical field of curtain fabric production, and in particular to a wrinkle-resistant and stretch-resistant curtain fabric and a preparation process thereof. Background Art

[0002] The main function of curtains is to separate from the outside world to maintain the privacy of the room. At the same time, they also have the functions of sunshade, heat insulation and regulating indoor light. Curtains are also an indispensable decoration for home decoration. Modern curtains can not only reduce light and block light to meet people's needs for different light intensities, but also prevent fire, wind, dust, keep warm, eliminate sound, insulate, prevent radiation, and prevent ultraviolet rays, etc., to improve the climate and environment of the room. Therefore, the ingenious combination of decorativeness and practicality is the biggest feature of modern curtains. With the increasing requirements for the light-blocking, heat-insulating, antibacterial, fire-proof, wind-proof, dust-removing, warm-keeping, and sound-absorbing properties of curtain fabrics, the composition of the materials used in curtain fabrics has become more complex. Although some curtains have excellent comprehensive performance, more additional ingredients make the curtains lose the softness, wrinkle resistance, and stretch resistance of pure fabrics.

[0003] Patent number CN211892327U, patent name "A new type of antibacterial and wrinkle-proof curtain fabric" discloses a new type of antibacterial and wrinkle-proof curtain fabric, including antibacterial layer one, the bottom of the antibacterial layer one is adhered to the anti-light-proof layer one, the bottom of the anti-light-proof layer one is adhered to the anti-wrinkle layer, the bottom of the anti-wrinkle layer is adhered to the anti-light-proof layer two, the bottom of the anti-light-proof layer two is adhered to the antibacterial layer two, and the inside of the antibacterial layer two is woven with bamboo fiber. The inside of the anti-wrinkle layer is woven with nylon, and the thickness of the anti-wrinkle layer is three to five millimeters. The above patent achieves the anti-wrinkle effect mainly by adhering a layer of anti-wrinkle layer. However, after a period of use, the anti-wrinkle layer is prone to partial detachment due to the weakened bonding force with other layers. When the anti-wrinkle layer is partially detached during use, the anti-wrinkle effect of the anti-wrinkle curtain fabric will be greatly weakened.

[0004] Therefore, developing a curtain fabric that is wrinkle-resistant, stretch-resistant and has other properties meets market demand and has broad market value and application prospects. Summary of the invention

[0005] In order to solve the above technical problems, a curtain fabric with a soft surface, good anti-wrinkle effect, stretch resistance and wear resistance is developed. The present application provides a wrinkle-resistant and stretch-resistant curtain fabric and a preparation process.

[0006] In a first aspect, the present application provides a wrinkle-resistant and stretch-resistant curtain fabric, which is provided with a fabric base layer, a flexible layer and an anti-wrinkle coating from the inside to the outside; The flexible layer comprises the following raw materials in parts by weight: 60-90 parts of TPU, 10-20 parts of ethylene-vinyl acetate copolymer, 4-7 parts of hyperbranched resin, 6-11 parts of hydroxymethyl cellulose, 2-4 parts of nanosilver, and 20-50 parts of organic solvent; The anti-wrinkle coating comprises the following raw materials in parts by weight: 30-50 parts of TPU, 15-30 parts of ethyl methacrylate, 4-8 parts of acrylamide, 3-8 parts of vanillin, 10-20 parts of silicon dioxide-titanium dioxide composite aerogel powder, 0.5 parts of initiator, and 20-50 parts of organic solvent.

[0007] By adopting the above technical solution, a hyperbranched resin is added to the flexible layer. A large number of active groups such as hydroxyl, carboxyl, and amino groups exist on the surface of the hyperbranched resin, which can form certain chemical and physical bonds with the flexible layer, the base layer of the fabric, and other active ingredients in the anti-wrinkle coating. On the one hand, it promotes the uniform dispersion of the raw materials, and on the other hand, it enhances the adhesion and flexibility between the layers of the curtain fabric, thereby enhancing the overall anti-wrinkle performance of the curtain fabric. The use of hydroxymethyl cellulose and ethylene-vinyl acetate copolymer is beneficial to the moisture retention of the flexible layer, thereby maintaining the softness and comfort of the curtain fabric. In the anti-wrinkle coating, the silica-titania composite aerogel powder has the characteristics of light weight, high porosity and high specific surface area. The high porosity and porous structure of the aerogel powder help to absorb and disperse stress, thereby reducing the wrinkles of the material and improving the wrinkle resistance of the curtain fabric. Both silica and titanium dioxide have good weather resistance, can resist ultraviolet rays and oxidation, and extend the service life of the curtain fabric. The amino groups in vanillin and acrylamide can generate Schiff base structures when heated, which can improve the toughness and thermal stability of the anti-wrinkle coating. In addition, they have good antibacterial properties and have a good inhibitory effect on bacteria such as Staphylococcus aureus, Gram-positive bacteria, Bacillus subtilis, and Escherichia coli.

[0008] Furthermore, the raw materials of the silica-titania composite aerogel powder include ethyl orthosilicate, titanium dioxide and solvent in a weight ratio of 1-2:1:10.

[0009] Furthermore, the solvent is ethanol and emulsified silicone oil in a weight ratio of 1:1.

[0010] Furthermore, the preparation method of the silica-titania composite aerogel powder comprises the following steps: mixing ethyl orthosilicate and titanium dioxide, adding a solvent and stirring to obtain a mixture; diluting the mixture with water at a ratio of 1:1 to form a mixed solution, adding 10wt% ammonia water until the pH of the mixed solution is 8-9, stirring for 30 minutes to form a sol, aging, supercritical drying, and grinding to obtain the silica-titania composite aerogel powder.

[0011] Furthermore, in the preparation process of the silica-titania composite aerogel powder, the supercritical drying temperature is 260-275° C., the pressure is 12-20 MPa, and the supercritical drying treatment time is 8-10 hours.

[0012] By adopting the above technical solution, the prepared silicon dioxide-titania composite aerogel powder has higher porosity and specific surface area.

[0013] Furthermore, the cloth base layer comprises the following raw materials in parts by weight: 60-80 parts of polyester fiber, 10-20 parts of cotton fiber, and 5-10 parts of polyacrylonitrile fiber.

[0014] Furthermore, the thickness of the fabric base layer is 0.6-1.2 mm, the thickness of the flexible layer is 0.3-0.6 mm, and the thickness of the anti-wrinkle coating is 0.5-1 mm.

[0015] Furthermore, the hyperbranched resin includes one or more of hyperbranched polyester, hyperbranched polyamide, hyperbranched polyester amide, hyperbranched polyimide ester or hyperbranched polysiloxane.

[0016] In a second aspect, the present application provides a preparation process of the above-mentioned wrinkle-resistant and stretch-resistant curtain fabric, comprising the following steps: S1. Mixing polyester fiber, cotton fiber and polyacrylonitrile fiber to form a fabric base; S2, pre-forming, pad-dyeing, and drying the fabric base obtained in step S1 to obtain a pretreated fabric base; S3, mixing the components of the raw materials of the flexible layer, heating to 120-140° C., stirring for 30 min, applying to one surface of the pretreated fabric base obtained in step S2, and drying to form a flexible layer; S4. Mix the components of the raw materials of the anti-wrinkle coating except the initiator, heat up to 130-150° C., stir for 30 min, cool down to 70-85° C., add the initiator, stir for 30 min, apply on the flexible layer prepared in step S3, dry to form an anti-wrinkle coating, roll and wash to obtain anti-wrinkle and stretch-resistant curtain fabric.

[0017] Furthermore, the preparation of the cloth base layer in step S1 includes the following steps: opening each raw material into a single fiber, removing impurities, and combing them on a carding machine respectively; blending 40-50 parts of polyester fiber and 10-20 parts of cotton fiber as warp yarn; blending 10-40 parts of polyester fiber and 5-10 parts of polyacrylonitrile fiber as weft yarn; and weaving the warp yarn and the weft yarn into the cloth base layer according to the set warp and weft density of the organizational structure.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The wrinkle-resistant and stretch-resistant curtain fabric prepared in the present application has a long-lasting anti-wrinkle effect and has good tear resistance and stretch resistance. In addition, the addition of silica-titanium dioxide composite aerogel powder can improve the UV resistance of the curtain fabric and reduce the aging rate of the curtain fabric. The compound use of vanillin and acrylamide makes the curtain fabric have good antibacterial function.

[0019] 2. The preparation process of the wrinkle-resistant and stretch-resistant curtain fabric in this application is relatively simple, with low operating difficulty, and is easy to realize industrial production and manufacturing. DETAILED DESCRIPTION

[0020] The present application designs a wrinkle-resistant and stretch-resistant curtain fabric, which is provided with a fabric base layer, a flexible layer and an anti-wrinkle coating from the inside to the outside in sequence; the flexible layer comprises the following raw materials in parts by weight: 60-90 parts of TPU, 10-20 parts of ethylene-vinyl acetate copolymer, 4-7 parts of hyperbranched resin, 6-11 parts of hydroxymethyl cellulose, 2-4 parts of nanosilver, and 20-50 parts of an organic solvent; The anti-wrinkle coating comprises the following raw materials in parts by weight: 30-50 parts of TPU, 15-30 parts of ethyl methacrylate, 4-8 parts of acrylamide, 3-8 parts of vanillin, 10-20 parts of silicon dioxide-titanium dioxide composite aerogel powder, 0.5 parts of initiator, and 20-50 parts of organic solvent.

[0021] The wrinkle-resistant and stretch-resistant curtain fabric of the present application is prepared by the following method, comprising the following steps: S1. Mixing polyester fiber, cotton fiber and polyacrylonitrile fiber to form a fabric base; S2, pre-forming, pad-dyeing, and drying the fabric base obtained in step S1 to obtain a pretreated fabric base; S3, mixing the components of the raw materials of the flexible layer, heating to 120-140° C., stirring for 30 min, applying to one surface of the pretreated fabric base obtained in step S2, and drying to form a flexible layer; S4. Mix the components of the raw materials of the anti-wrinkle coating except the initiator, heat up to 130-150° C., stir for 30 min, cool down to 70-85° C., add the initiator, stir for 30 min, apply on the flexible layer prepared in step S3, dry to form an anti-wrinkle coating, roll and wash to obtain anti-wrinkle and stretch-resistant curtain fabric.

[0022] The technical problem solved by the present application is that as the requirements for the light-shielding, heat-insulating, antibacterial, fire-proof, windproof, dust-removing, warm-keeping, and sound-absorbing properties of curtain fabrics become higher and higher, the composition of the materials used in curtain fabrics becomes more complex. Although some curtains have excellent comprehensive performance, more additional components make the curtains lose the softness, wrinkle resistance, and stretch resistance of pure fabrics. In the present application, a flexible layer and an anti-wrinkle coating are added to the surface of the fabric base layer. The flexible layer uses TPU as the base material and adds hyperbranched resin, hydroxymethyl cellulose, and other copolymers to enhance the softness and tensile resistance of the curtain fabric; the anti-wrinkle coating is added with silica-titanium dioxide composite aerogel powder to improve the anti-aging ability, wear resistance, and anti-wrinkle performance of the curtain fabric. At the same time, vanillin and acrylamide are compounded to make the curtain fabric have better antibacterial function.

[0023] The present application is further described in detail below with reference to the embodiments.

[0024] Preparation Example 1-5 Preparation Examples 1-5 are different raw material ratios corresponding to the flexible layer, the difference being that the amounts of each component are different, as shown in Table 1 (unit: parts by weight).

[0025] Table 1 The TPU used in Preparation Examples 1-5 is a polyether TPU with a brand number of 9370AU produced by Covestro Polymers.

[0026] The ethylene-vinyl acetate copolymer used in Preparation Example 1-5 is ethylene-vinyl acetate copolymer with a brand number of VS430 produced by Lotte Chemical.

[0027] The hyperbranched resin used in Preparation Examples 1-5 is a hyperbranched polyester acrylate oligomer with a model number of DR-E524 produced by Taiwan Changxing Chemical.

[0028] The organic solvent used in Preparation Example 1-5 is a mixture of DMF and butanone in a weight ratio of 2:1.

[0029] Preparation Example 6-10 Preparation Examples 6-10 are different raw material ratios corresponding to the anti-wrinkle coatings, the difference being that the amounts of the components are different, as shown in Table 2 (unit: parts by weight).

[0030] Table 2 The TPU and organic solvent used in Preparation Examples 6-10 are the same as those used in Preparation Examples 1-5.

[0031] The vanillin used in Preparation Examples 6-10 was purchased from Tokyo Chemical Industry Co., Ltd. under the model number H0264.

[0032] The initiator used in Preparation Examples 6-10 was dibenzoyl peroxide.

[0033] The preparation method of the silica-titania composite aerogel powder used in Preparation Examples 6-10 includes the following steps: after tetraethyl orthosilicate and titanium dioxide are mixed, a solvent is added and stirred to obtain a mixture; the mixture is diluted with water at a ratio of 1:1 to form a mixed solution, 10wt% ammonia water is added until the pH of the mixed solution is 8-9, and stirred for 30 minutes to form a sol, and the mixture is aged, supercritically dried, and ground to obtain a silica-titania composite aerogel powder. The solvent is ethanol and emulsified silicone oil at a weight ratio of 1:1; the weight ratio of tetraethyl orthosilicate, titanium dioxide and solvent is 1.5:1:10; the supercritical drying temperature is 270°C, the pressure is 20Mpa, and the supercritical drying treatment time is 8 hours; the titanium dioxide is nano titanium dioxide.

[0034] Examples 1-9 Examples 1-9 are wrinkle-resistant and stretch-resistant curtain fabrics made from different combinations of flexible layers or wrinkle-resistant coatings. The difference is that the raw material ratios of the flexible layers or wrinkle-resistant coatings used are different, as shown in Table 3.

[0035] Table 3 Flexible layer Anti-wrinkle coating Example 1 Preparation Example 1 Preparation Example 7 Example 2 Preparation Example 2 Preparation Example 7 Example 3 Preparation Example 3 Preparation Example 7 Example 4 Preparation Example 4 Preparation Example 7 Example 5 Preparation Example 5 Preparation Example 7 Example 6 Preparation Example 2 Preparation Example 6 Example 7 Preparation Example 2 Preparation Example 8 Example 8 Preparation Example 2 Preparation Example 9 Example 9 Preparation Example 2 Preparation Example 10 The raw materials of the cloth base layers of Examples 1-9 include polyester fiber, cotton fiber and polyacrylonitrile fiber in a weight ratio of 70:20:8.

[0036] In Examples 1-9, the thickness of the fabric base layer is 0.9 mm, the thickness of the flexible layer is 0.4 mm, and the thickness of the anti-wrinkle coating is 0.6 mm.

[0037] The preparation process of the wrinkle-resistant and stretch-resistant curtain fabric in Examples 1-9 comprises the following steps: S1. Opening polyester fiber, cotton fiber and polyacrylonitrile fiber into single fibers, blending five sevenths of polyester fiber with all cotton fiber as warp yarn, blending the remaining polyester fiber with all polyacrylonitrile fiber as weft yarn, and weaving the warp yarn and weft yarn into a fabric base according to the warp and weft density; S2, pre-forming, pad-dyeing, and drying the fabric base obtained in step S1 to obtain a pre-treated fabric base; S3, mixing the components of the raw materials of the flexible layer, heating to 120° C., stirring for 30 min, applying to the upper surface of the pretreated fabric base obtained in step S2, and drying to form a flexible layer; S4. Mix the components of the raw materials of the anti-wrinkle coating except the initiator, heat to 130° C., stir for 30 min, cool to 80° C., add the initiator, stir for 30 min, apply on the flexible layer prepared in step S3, dry to form an anti-wrinkle coating, roll and wash to obtain anti-wrinkle and stretch-resistant curtain fabric.

[0038] Comparative Example 1 Comparative Example 1 is based on Example 2, except that the silica-titania composite aerogel powder in the raw material of the anti-wrinkle coating in Comparative Example 1 is replaced with a mixed powder of nano-silicon dioxide and nano-titania of equal weight, wherein the weight ratio of nano-silicon dioxide to nano-titania is 1.5:1.

[0039] Comparative Example 2 Comparative Example 2 is based on Example 2, except that no vanillin is added to the raw materials of the anti-wrinkle coating in Comparative Example 2.

[0040] Comparative Example 3 Comparative Example 3 is based on Example 2, except that: in Comparative Example 3, no hyperbranched resin is added to the raw materials of the flexible layer.

[0041] Comparative Example 4 Comparative Example 4 is based on Example 2, with the difference being that the overall structure of the wrinkle-resistant and stretch-resistant curtain fabric in Comparative Example 4 is changed to a fabric base layer, an anti-wrinkle coating layer and a flexible layer arranged in sequence from the inside to the outside; wherein the composition ratio of the fabric base layer, the anti-wrinkle coating layer and the flexible layer remains unchanged.

[0042] Performance Testing 1. The wrinkle recovery angles of the wrinkle-resistant and stretch-resistant curtain fabrics prepared in Examples 1-9 and Comparative Examples 1-4 were tested with reference to the standard GB / T 3819-1997 “Recovery angle method for determination of crease recovery of textile fabrics”.

[0043] 2. Referring to the standard GB / T 3923.1-2013 "Tensile properties of textile fabrics Part 1: Determination of breaking strength and breaking elongation (strip method)", the breaking strength retention rate of the wrinkle-resistant and stretch-resistant curtain fabrics prepared in Examples 1-9 and Comparative Examples 1-4 was tested.

[0044] 3. The antibacterial rates of the wrinkle-resistant and stretch-resistant curtain fabrics prepared in Examples 1-9 and Comparative Examples 1-4 were tested with reference to the standard ISO 20743-2007 “Determination of antibacterial properties of antibacterial finished textiles”.

[0045] 4. The air permeability of the wrinkle-resistant and stretch-resistant curtain fabrics prepared in Examples 1-9 and Comparative Examples 1-4 was tested with reference to standard GB5453-85.

[0046] The test results are shown in Table 4.

[0047] Table 4 By analyzing the data in Table 4 and comparing the performance test data of Examples 1-9 with those of Comparative Examples 1-4, it can be found that the overall structure of the wrinkle-resistant and stretch-resistant curtain fabric in the present application in which the fabric base layer, the flexible layer and the anti-wrinkle coating are stacked in sequence, as well as the hyperbranched resin in the flexible layer, the silica-titanium dioxide composite aerogel powder and vanillin in the anti-wrinkle coating have a significant effect on the anti-wrinkle performance, tear resistance, tensile resistance and antibacterial performance of the obtained wrinkle-resistant and stretch-resistant curtain fabric.

[0048] It can be seen from Example 2 that the wrinkle-resistant and stretch-resistant curtain fabric prepared in the present application has good anti-wrinkle effect, good tear resistance and stretch resistance, and strong antibacterial performance.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wrinkle-resistant and stretch-resistant curtain fabric. It is characterized in that From inside to outside, there are a fabric base layer, a flexible layer and an anti-wrinkle coating; The flexible layer comprises the following raw materials in parts by weight: 60-90 parts of TPU, 10-20 parts of ethylene-vinyl acetate copolymer, 4-7 parts of hyperbranched resin, 6-11 parts of hydroxymethyl cellulose, 2-4 parts of nanosilver, and 20-50 parts of organic solvent; The anti-wrinkle coating comprises the following raw materials in parts by weight: 30-50 parts of TPU, 15-30 parts of ethyl methacrylate, 4-8 parts of acrylamide, 3-8 parts of vanillin, 10-20 parts of silicon dioxide-titanium dioxide composite aerogel powder, 0.5 parts of initiator, and 20-50 parts of organic solvent.

2. The wrinkle-resistant and stretch-resistant curtain fabric according to claim 1, It is characterized in that The raw materials of the silicon dioxide-titania composite aerogel powder include ethyl orthosilicate, titanium dioxide and solvent in a weight ratio of 1-2:1:

10.

3. The wrinkle-resistant and stretch-resistant curtain fabric according to claim 2, It is characterized in that The solvent is ethanol and emulsified silicone oil in a weight ratio of 1:

1.

4. The wrinkle-resistant and stretch-resistant curtain fabric according to claim 1, It is characterized in that The preparation method of the silica-titania composite aerogel powder comprises the following steps: mixing ethyl orthosilicate and titanium dioxide, adding a solvent and stirring to obtain a mixture; diluting the mixture with water at a ratio of 1:1 to form a mixed solution, adding 10wt% ammonia water dropwise until the pH value of the mixed solution is 8-9, stirring for 30 minutes to form a sol, aging, supercritical drying, and grinding to obtain the silica-titania composite aerogel powder.

5. The wrinkle-resistant and stretch-resistant curtain fabric according to claim 1, It is characterized in that The cloth base layer comprises the following raw materials in parts by weight: 60-80 parts of polyester fiber, 10-20 parts of cotton fiber, and 5-10 parts of polyacrylonitrile fiber.

6. The wrinkle-resistant and stretch-resistant curtain fabric according to claim 1, It is characterized in that The thickness of the cloth base layer is 0.6-1.2 mm, the thickness of the flexible layer is 0.3-0.6 mm, and the thickness of the anti-wrinkle coating is 0.5-1 mm.

7. The wrinkle-resistant and stretch-resistant curtain fabric according to claim 1, It is characterized in that The hyperbranched resin includes one or more of hyperbranched polyester, hyperbranched polyamide, hyperbranched polyesteramide, hyperbranched polyimide or hyperbranched polysiloxane.

8. A process for preparing the wrinkle-resistant and stretch-resistant curtain fabric according to any one of claims 1 to 7, It is characterized in that The following steps are involved: S1. Mixing polyester fiber, cotton fiber and polyacrylonitrile fiber to form a fabric base; S2, pre-forming, pad-dyeing, and drying the fabric base obtained in step S1 to obtain a pretreated fabric base; S3, mixing the components of the raw materials of the flexible layer, heating to 120-140° C., stirring for 30 min, applying to one surface of the pretreated fabric base obtained in step S2, and drying to form a flexible layer; S4. Mix the components of the raw materials of the anti-wrinkle coating except the initiator, heat up to 130-150° C., stir for 30 min, cool down to 70-85° C., add the initiator, stir for 30 min, apply on the flexible layer prepared in step S3, dry to form an anti-wrinkle coating, roll and wash to obtain anti-wrinkle and stretch-resistant curtain fabric.

9. The preparation process of the wrinkle-resistant and stretch-resistant curtain fabric according to claim 8, It is characterized in that The preparation of the cloth base layer in step S1 includes the following steps: opening each raw material into a single fiber, removing impurities, and combing them on a carding machine respectively; blending 40-50 parts of polyester fiber and 10-20 parts of cotton fiber as warp yarn; blending 10-40 parts of polyester fiber and 5-10 parts of polyacrylonitrile fiber as weft yarn; and weaving the warp yarn and the weft yarn into the cloth base layer according to the set warp and weft density of the organizational structure.

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