阅读说明：本技术 一种耐折抗皱的基材、制备方法及墙布 (Folding-resistant and anti-wrinkle base material, preparation method and wall cloth ) 是由 张小琼 陆勇新 龙有恩 于 2020-06-19 设计创作，主要内容包括：本发明涉及墙布技术领域,具体涉及一种耐折抗皱的基材、制备方法及墙布；该基材包括依次贴合的布层、第一耐折抗皱层、胶粘剂层和面层,所述第一耐折抗皱层由耐折抗皱浆料制成,所述耐折抗皱浆料包括如下重量份的原料：成膜树脂80-100份、溶剂50-80份、增塑剂30-100份、填料10-20份、有机钛螯合物30-40份、成膜助剂3-10份、防霉抗菌剂0-3份。该基材一方面避免后续贴合于面层的图案层产生不可消除的折痕和褶皱；另一方面避免了后续印花的图案在基材上的呈现效果不佳,再在第一耐折抗皱层贴合胶粘剂层和面层,使基材形式更丰富。(The invention relates to the technical field of wall cloth, in particular to a folding-resistant and anti-wrinkle base material, a preparation method and wall cloth; the base material comprises a cloth layer, a first folding-resistant and anti-wrinkle layer, an adhesive layer and a surface layer which are sequentially attached, wherein the first folding-resistant and anti-wrinkle layer is made of folding-resistant and anti-wrinkle slurry, and the folding-resistant and anti-wrinkle slurry comprises the following raw materials in parts by weight: 80-100 parts of film-forming resin, 50-80 parts of solvent, 30-100 parts of plasticizer, 10-20 parts of filler, 30-40 parts of organic titanium chelate, 3-10 parts of film-forming additive and 0-3 parts of mildew-proof antibacterial agent. The substrate on one hand prevents the pattern layer which is subsequently attached to the surface layer from generating irremovable creases and wrinkles; on the other hand, the phenomenon that the appearance effect of the subsequent printed patterns on the base material is poor is avoided, and the adhesive layer and the surface layer are adhered to the first folding-resistant anti-wrinkle layer, so that the base material is more abundant in form.)

1. A folding-resistant and wrinkle-resistant base material is characterized in that: including cloth layer, the first crease-resistant anti-wrinkle layer of laminating in proper order, adhesive layer and surface course, the crease-resistant anti-wrinkle layer of first resistant is made by crease-resistant thick liquids, crease-resistant thick liquids include the raw materials of following part by weight:

2. a crease-resistant substrate according to claim 1, characterized in that: the organic titanium chelate is at least one of diisopropyl di (triethanolamine) titanate, titanium acetylacetonate, octanediol titanate, titanium tetra (acetylacetonate) and diisopropyl bis (ethylacetoacetate) titanate.

3. A crease-resistant substrate according to claim 1, characterized in that: the film-forming resin is at least one of vinyl chloride resin, polyurethane resin, acrylic resin, acrylonitrile resin, styrene resin and polymethacrylic resin; the solvent is dearomatization solvent oil; the filler is fumed silica; the film-forming assistant is dodecyl alcohol ester.

4. A crease-resistant substrate according to claim 1, characterized in that: the plasticizer is at least one of acetyl tri-n-butyl citrate, glycerol triacetate, tributyl citrate, trioctyl citrate, trinonyl trimellitate and phthalate.

5. A crease-resistant substrate according to claim 1, characterized in that: the mildew-proof antibacterial agent is at least one of 2- (4-thiazolyl) benzimidazole, sodium benzoate, N- (2-benzimidazolyl) -methyl carbamate, octyl isothiazolinone, (4, 5-dichloro-N-octyl-4-isothiazolinone-3-ketone) isothiazolinone and sodium diacetate.

6. A crease-resistant substrate according to claim 1, characterized in that: the surface layer is a rough effect surface layer, and the rough effect surface layer comprises a plurality of particles distributed on the adhesive layer.

7. A crease-resistant substrate according to claim 5, characterized in that: the particles are at least one of alumina particles, silica particles, calcium carbonate particles, zinc oxide particles and barium sulfate particles; the thickness of the surface layer is 0.05-0.3mm, and the average particle size of the particles is 200-1000 meshes.

8. A crease-resistant substrate according to claim 1, characterized in that: the adhesive layer is made of a water-based polyurethane adhesive.

9. Method for the production of a crease-resistant substrate according to any one of claims 1 to 8, characterised in that it comprises the following steps:

(S1) carrying out surface treatment on the cloth layer by adopting folding-resistant and anti-wrinkle slurry, and drying to form a first folding-resistant and anti-wrinkle layer;

(S2) coating the surface of the first anti-folding and anti-wrinkle layer formed in the step (S1) with a water-based polyurethane adhesive, and drying at 50-80 ℃ for 1-5 min;

(S3) blade coating the surface coated with the waterborne polyurethane adhesive in the step (S2), drying to respectively form an adhesive layer and a surface layer, and cleaning the surface to obtain the base material.

10. A wall cloth, its characterized in that: the crease-resistant substrate according to any one of claims 1 to 8, comprising a patterned layer attached to the upper surface of the facing layer.

Technical Field

The invention relates to the technical field of wall cloth, in particular to a folding-resistant and anti-wrinkle base material, a preparation method and the wall cloth.

Background

The wall cloth is an interior decoration material for pasting wall surfaces, and is widely used for interior decoration of houses, offices, hotels and the like because the wall cloth has the characteristics of various colors, rich patterns, luxury style, safety, environmental protection, convenient construction and proper price.

The base material of the wall cloth is generally woven cloth or non-woven cloth, and the wall cloth product is formed by printing and embossing on the base material. Because the existing non-woven fabric has lower price and better stiffness, the non-woven fabric becomes a preferred substrate for producing wall cloth by producers; with the increasing pursuit of consumers for wall cloth products, the wall cloth directly printed on the substrate is monotonous, and even the printed patterns are not harmonious on the substrate. At present, in order to solve the problems, manufacturers apply slurry on the substrate and perform surface treatment to enrich the form of the wall cloth, correspondingly, patterns which are matched with the substrate and the patterns can be obtained by printing on the substrate which is subjected to the slurry application treatment, the patterns have certain touch feeling and are deeply favored by consumers, but at the position of feeding, storing or conveying and checking in the production process of the wall cloth, the substrate or the wall cloth can be bent and stacked in a wave shape, so that the surface of the substrate is easy to crease or wrinkle when being pressed, particularly at the side of the substrate which is coated with the slurry, the slurry is internally stressed and broken, the generated crease is left on the surface of the substrate and the wall cloth and can not be recovered, and the produced wall cloth can generate flaws.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, one of the objects of the present invention is to provide a crease-resistant substrate, wherein a first crease-resistant layer made of crease-resistant slurry enhances the toughness of the substrate as a whole, and prevents the surface of the substrate from being pressed to cause that creases or wrinkles cannot be recovered, thereby preventing the pattern layer subsequently attached to the surface layer from causing unerasable creases and wrinkles; on the basis of the cloth layer, the first folding-resistant anti-wrinkle layer is added on the cloth layer for priming, so that adverse effects on the presentation effect of a subsequent pattern layer on the base material due to standing of surface fibers of the cloth layer caused by static electricity are reduced, the poor presentation effect of the subsequently printed pattern on the base material is avoided, and the adhesive layer and the surface layer are adhered on the first folding-resistant anti-wrinkle layer, so that the base material is more abundant in form.

The second purpose of the invention is to provide a preparation method of the folding-resistant and anti-wrinkle base material, which has the advantages of simple operation, convenient control, high production efficiency and low production cost and can be used for large-scale production.

The invention also aims to provide the wall cloth, the wall cloth obtained after the pattern layer is printed on the surface layer of the base material has more abundant forms than the traditional wall cloth; because the anti-crease and crease-resistant layer is added on the cloth layer for priming, the adverse effect on the presenting effect of the subsequent pattern layer on the base material due to the fact that surface fibers of the cloth layer stand up caused by static electricity is reduced, the discordance of the printed pattern on the base material is avoided, the pattern presenting effect is better, the first anti-crease and crease-resistant layer made of the anti-crease and crease-resistant slurry enhances the overall toughness of the base material, the subsequent crease and crease which are attached to the pattern layer of the surface layer are prevented from generating irremovable creases and creases, and the possibility that the produced wall cloth can have flaws is reduced.

The purpose of the invention is realized by the following technical scheme: the utility model provides a crease-resistant base material of rolling over, includes cloth layer, the first crease-resistant layer of rolling over, adhesive layer and the surface course of laminating in proper order, the first crease-resistant layer of rolling over is made by crease-resistant thick liquids of rolling over, crease-resistant thick liquids of rolling over include the raw materials of following parts by weight:

the folding-resistant and anti-wrinkle base material disclosed by the invention has the advantages that the first folding-resistant and anti-wrinkle layer prepared from the folding-resistant and anti-wrinkle slurry enhances the overall toughness of the base material, and avoids that creases or wrinkles generated by pressing the surface of the base material cannot be recovered, so that the situation that the creases and wrinkles which cannot be eliminated are generated in a pattern layer which is subsequently attached to a surface layer is avoided; on the basis of the cloth layer, the first folding-resistant anti-wrinkle layer is added on the cloth layer for priming, so that adverse effects on the presentation effect of a subsequent pattern layer on the base material due to standing of surface fibers of the cloth layer caused by static electricity are reduced, the poor presentation effect of the subsequently printed pattern on the base material is avoided, and the adhesive layer and the surface layer are adhered on the first folding-resistant anti-wrinkle layer, so that the base material is more abundant in form. The folding-resistant and anti-wrinkle slurry takes film-forming resin as a main body, and a plasticizer, a filler, an organic titanium chelate, a film-forming assistant and a mildew-proof antibacterial agent are added to improve the flexibility, the bending resistance, the adhesiveness and the antibacterial property of the first folding-resistant and anti-wrinkle layer; the cloth layer is non-woven fabric or woven fabric, the fiber for producing the non-woven fabric is mainly prepared by mixing one or more of polypropylene fiber, terylene, chinlon, viscose fiber and polyvinyl chloride, and the problem of poor adhesion is easily caused if common ink/slurry is directly used for printing on the surface of the cloth layer or surface treatment is carried out on the surface of the cloth layer due to the poor polarity of the cloth layer, particularly the terylene and the polyvinyl chloride; the plasticizer in the folding-resistant and anti-wrinkle slurry can effectively enhance the bending effect of the folding-resistant and anti-wrinkle layer. And adding the film-forming resin, the plasticizer, the filler, the organic titanium chelate, the film-forming assistant and the mildew-proof antibacterial agent into the solvent, and uniformly mixing to obtain the folding-resistant and crease-resistant slurry.

Preferably, the organic titanium chelate is at least one of diisopropyl di (triethanolamine) titanate, titanium acetylacetonate, octandiol titanate, titanium tetra (acetylacetonate) and diisopropyl bis (ethylacetoacetate) titanate.

According to the folding-resistant and crease-resistant slurry, the organic titanium chelate is added, and the organic titanium chelate contains active hydrogen groups such as hydroxyl, carboxyl and amino, so that when the folding-resistant and crease-resistant slurry is used for carrying out surface treatment on a cloth layer, active hydrogen in the hydroxyl of the cloth layer and the organic titanium chelate carry out crosslinking reaction, a strong-Ti-bond is formed between the cloth layer and the folding-resistant and crease-resistant slurry, and the adhesion fastness between the first folding-resistant and crease-resistant layer and the cloth layer can be effectively improved.

Preferably, the film-forming resin is at least one of a vinyl chloride resin, a polyurethane resin, an acrylic resin, an acrylonitrile resin, a styrene resin and a polymethacrylic resin; the solvent is dearomatization solvent oil; the filler is fumed silica; the film-forming assistant is dodecyl alcohol ester.

By adopting the film-forming resin, the elasticity and the flexibility of the first folding-resistant anti-wrinkle layer can be improved, and the bending resistance of the first folding-resistant anti-wrinkle layer is enhanced. The adoption of the dearomatization solvent oil can dissolve the film-forming resin, the plasticizer, the organic titanium chelate, the film-forming additive and the mildew-proof antibacterial agent, promote the mutual dissolution and dispersion of the raw materials, improve the stability, reduce corrosive substances and reduce the toxicity; more preferably, the dearomatization solvent oil is D80 solvent oil, D110 solvent oil or D130 solvent oil, so that the toxicity is low, and the environmental protection and safety of the base material are improved. The filler adopts fumed silica, so that the slurry can be whitened, the first fold-resistant anti-wrinkle layer covers the color of the cloth layer, the incompatibility of the traditional printed patterns on various cloth layers with different colors is effectively avoided, the reinforcing effect can be realized, under the specific dosage of 10-20 parts by weight, the uniform three-dimensional network structure is formed by mutual hydrogen bond association in dearomatization solvent oil, the medium-low shear viscosity of the system is improved, and the fold-resistant anti-wrinkle slurry is prevented from sagging in the curing process; if the using amount of the fumed silica is less than 10 parts by weight, a three-dimensional network structure is difficult to form sufficiently, and the action effect is greatly weakened; if the using amount of the fumed silica is more than 20 parts by weight, the integral thixotropic property of the folding-resistant and anti-wrinkle slurry is easily overlarge, so that the dispersion effect is poor. The film forming auxiliary agent adopts the dodecanol ester, has strong coalescence capability, and can promote the dispersion and dissolution of raw materials under the combined action of the dodecanol ester and the dearomatization solvent oil, effectively reduce the film forming temperature of the folding-resistant and anti-wrinkle slurry, promote the film forming of the folding-resistant and anti-wrinkle slurry, and improve the dispersion uniformity and stability of fillers in the folding-resistant and anti-wrinkle slurry, so that the surface roughness of the folding-resistant and anti-wrinkle slurry after the film forming is improved, and the glossiness and color uniformity of the film after the film forming are improved. Through increasing the crease-resistant thick liquids of first resistant book on the cloth layer, the crease-resistant thick liquids of first resistant book combines with the cloth layer surface, combines more to have the pliability than traditional thick liquids and cloth layer, and the fifty percent discount can resume smooth state in process of production.

Preferably, the plasticizer is at least one of acetyl tri-n-butyl citrate, glycerol triacetate, tributyl citrate, trioctyl citrate, trinonyl trimellitate and phthalate.

The plasticizer is low in toxicity or non-toxicity in animal experiments and has good biodegradability, and the bending effect of the first anti-folding and anti-folding layer can be effectively enhanced by adding the plasticizer into the anti-folding and anti-folding layer. More preferably, the plasticizer is acetyl tributyl citrate and acetyl tributyl citrate, and the weight ratio of the acetyl tributyl citrate to the acetyl tributyl citrate is 2: 1, and is better for improving the bending resistance and flexibility of the first anti-folding and anti-wrinkling layer.

Preferably, the mildew-proof antibacterial agent is at least one of 2- (4-thiazolyl) benzimidazole, sodium benzoate, N- (2-benzimidazolyl) -methyl carbamate, octyl isothiazolinone, (4, 5-dichloro-N-octyl-4-isothiazolin-3-one) isothiazolinone and sodium diacetate.

By adopting the technical scheme and controlling the dosage of the mildew-proof antibacterial agent to be 0.3-3 parts by weight, the harm caused by microorganisms is prevented, and the service life of the cloth layer is prolonged.

Preferably, the surface layer is a coarse effect surface layer, and the coarse effect surface layer comprises a plurality of particles distributed on the adhesive layer.

By adopting the technical scheme, the base material has rough hand feeling; the wall cloth that obtains behind the coarse effect surface course seal pattern layer of this substrate, because increase first resistant crease-resistant layer and play the end on the cloth layer of substrate, reduced on the cloth layer because of static arouses its surface fiber to stand and produce harmful effects to the subsequent pattern layer presentation effect on this substrate on the cloth layer, avoided the pattern layer to present on the substrate discordance, the pattern presentation effect is better, and has the coarse feeling, and is richer than traditional wall cloth form. Preferably, the grain area coverage of the coarse effect surface layer is 1-100%, and more preferably, in order to better present the coarse feel of the coarse effect surface layer, the grain area coverage of the coarse effect surface layer is 10%, 20%, 30%, 40%, 50%, 60%, 70%, 75%, 80%, or 90%.

Preferably, the particles are at least one of alumina particles, silica particles, calcium carbonate particles, zinc oxide particles and barium sulfate particles; the thickness of the surface layer is 0.05-0.3mm, and the average particle size of the particles is 200-1000 meshes.

The particles are white particles, and the air corrosion resistance of the particles is better. More preferably, the particles are alumina particles. The thickness of the rough effect surface layer is limited to be 0.05-0.3mm, the average particle size of the particles is limited to be 200-1000 meshes, the particles tend to be average, the particle size of a part of particles is prevented from being too large, and the rough hand feeling of the rough effect surface layer can be better presented. More preferably, the thickness of the coarse effect surface layer 4 is 0.05mm, 0.08mm, 0.1mm, 0.15mm, 0.2mm or 0.3mm, and the average particle diameter of the particles is 200 mesh, 400 mesh, 500 mesh, 600 mesh, 800 mesh or 1000 mesh.

Preferably, the adhesive layer is made of a water-based polyurethane adhesive.

By adopting the technical scheme, furthermore, the type of the waterborne polyurethane comprises but is not limited to Bayer Dispercoll U42, and the cracking of an adhesive layer caused by bearing bending stress in the production process of the base material is avoided under the condition of ensuring the strong bonding property of the adhesive; set up the surface course through the surface on adhesive layer, owing to adopted above-mentioned specific adhesive, when taking place crooked in cloth layer/substrate production process, because first crease-resistant layer has the pliability, then crease-resistant layer can be with the power dispersion that the bending produced, can slow down the fold generation on cloth layer effectively, when putting in order to the cloth layer, the position of taking place the bending under the effect on first crease-resistant layer can carry out elastic recovery, the granule is at the cushioning effect on first crease-resistant layer and under the strong viscidity effect on adhesive layer, the granule is difficult for taking place to drop. Further, the thickness of the adhesive layer is 0.1-0.3mm to ensure that the adhesive layer has enough adhesive dosage to adhere to the particles and prevent the particles from falling off, and more preferably, the thickness of the adhesive layer is 0.1mm, 0.15mm, 0.18mm, 0.2mm, 0.25mm or 0.3 mm. The thickness of the first fold-resistant and crease-resistant layer is 0.1-0.4mm, so that better priming is achieved, the color of the cloth covering layer is guaranteed, the phenomenon that the appearance effect of subsequent printed patterns on the base material is poor is avoided, and more preferably, the thickness of the first fold-resistant and crease-resistant layer is 0.1mm, 0.15mm, 0.2mm, 0.3mm or 0.4 mm.

The second purpose of the invention is realized by the following technical scheme: the preparation method of the folding-resistant and wrinkle-resistant base material comprises the following steps:

(S1) carrying out surface treatment on the cloth layer by adopting folding-resistant and anti-wrinkle slurry, and drying to form a first folding-resistant and anti-wrinkle layer;

(S2) coating the surface of the first anti-folding and anti-wrinkle layer formed in the step (S1) with a water-based polyurethane adhesive, and drying at 50-80 ℃ for 1-5 min;

(S3) blade coating the surface coated with the waterborne polyurethane adhesive in the step (S2), drying to respectively form an adhesive layer and a surface layer, and cleaning the surface to obtain the base material.

The preparation method of the base material is simple to operate, convenient to control, high in production efficiency and low in production cost, and can be used for large-scale production. Wherein, in the step (S1), the drying temperature is 120-150 ℃, and the drying time is 3-5 min; furthermore, the base material also comprises a second folding-resisting and anti-folding layer which is attached to one surface of the cloth layer away from the first folding-resisting and anti-folding layer; the second folding-resistant anti-wrinkle layer and the first folding-resistant anti-wrinkle layer are made of the same materials and have the same manufacturing method, so that the situation that when the cloth layer is used, the cloth layer is directly contacted with a wall surface and absorbs water in a damp environment to cause bacteria breeding is avoided; the thickness of the second anti-folding and anti-wrinkling layer is 0.1-0.4 mm; the bacterium breeding caused by the water absorption of the cloth layer in a damp environment due to the direct contact of the cloth layer and the wall surface in use is effectively avoided; more preferably, the second crease-resistant layer has a thickness of 0.1mm, 0.15mm, 0.2mm, 0.3mm or 0.4 mm; the surface treatment can be brush coating treatment, spraying treatment or padding treatment, more preferably, the surface treatment is padding treatment, the padding rate of the padding treatment on the cloth layer is 70-80%, and after drying, a first fold-resistant anti-wrinkle layer and a second fold-resistant anti-wrinkle layer can be respectively formed on two sides of the cloth layer, so that the production efficiency is improved. In the step (S2), drying for 1-3min at 50-80 ℃ to preheat the adhesive and primarily cure the adhesive, so as to prepare for forming an adhesive layer by completely curing in the step (S3); in the step (S3), the drying temperature is 100-150 ℃, and the drying time is 3-5 min; the coating process is to coat particles on the surface of the adhesive.

The third purpose of the invention is realized by the following technical scheme: the wall cloth comprises a pattern layer and the base material, wherein the pattern layer is attached to the surface layer of the base material.

Preferably, the pattern layer is at least one of a digital printing layer, a cylinder printing layer, a gravure printing layer, a flexographic printing layer, a hand-drawing layer and an embroidery layer.

The invention has the beneficial effects that: according to the folding-resistant and anti-wrinkle base material, the first folding-resistant and anti-wrinkle layer made of the folding-resistant and anti-wrinkle slurry enhances the overall toughness of the base material, and prevents the surface of the base material from being pressed to generate creases or wrinkles which cannot be recovered, so that the situation that the crease and the wrinkles cannot be eliminated are generated in the subsequent pattern layer attached to the surface layer is avoided; on the basis of the cloth layer, the first folding-resistant anti-wrinkle layer is added on the cloth layer for priming, so that adverse effects on the presentation effect of a subsequent pattern layer on the base material due to standing of surface fibers of the cloth layer caused by static electricity are reduced, the poor presentation effect of the subsequently printed pattern on the base material is avoided, and the adhesive layer and the surface layer are adhered on the first folding-resistant anti-wrinkle layer, so that the base material is more abundant in form.

The preparation method of the folding-resistant and anti-wrinkle base material is simple to operate, convenient to control, high in production efficiency and low in production cost, and can be used for large-scale production.

According to the wall cloth, the wall cloth obtained after the pattern layer is printed on the surface layer of the base material is richer than the traditional wall cloth in form; because the anti-crease and crease-resistant layer is added on the cloth layer for priming, the adverse effect on the presenting effect of the subsequent pattern layer on the base material due to the fact that surface fibers of the cloth layer stand up caused by static electricity is reduced, the discordance of the printed pattern on the base material is avoided, the pattern presenting effect is better, the first anti-crease and crease-resistant layer made of the anti-crease and crease-resistant slurry enhances the overall flexibility of the base material, the subsequent crease and crease which are attached to the pattern layer of the surface layer are prevented from generating irremovable creases and creases, and the possibility that the produced wall cloth can have flaws is reduced.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic structural view of example 2;

FIG. 3 is a schematic structural view of embodiment 3;

FIG. 4 is a schematic structural view of example 4.

The reference signs are: 1. a cloth layer; 2. a first fold-resistant and wrinkle-resistant layer; 3. an adhesive layer; 4. a coarse effect surface layer; 5. a second fold-resistant anti-wrinkle layer; 6. and (5) a pattern layer.

Detailed Description

For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.