CN106758280B - PVC (polyvinyl chloride) wide seamless wall cloth and manufacturing method thereof - Google Patents

PVC (polyvinyl chloride) wide seamless wall cloth and manufacturing method thereof Download PDF

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CN106758280B
CN106758280B CN201710065606.7A CN201710065606A CN106758280B CN 106758280 B CN106758280 B CN 106758280B CN 201710065606 A CN201710065606 A CN 201710065606A CN 106758280 B CN106758280 B CN 106758280B
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pvc
cloth
coating
printing
parts
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CN106758280A (en
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卜晓华
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Zhejiang Leadshow Smart Home Co ltd
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Zhejiang Leadshow Smart Home Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0013—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using multilayer webs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0036—Polyester fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D06N3/005—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers obtained by blowing or swelling agent
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/06—Building materials
    • D06N2211/063—Wall coverings

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention belongs to the technical field of decorative materials, and particularly relates to a PVC (polyvinyl chloride) wide seamless wall cloth and a manufacturing method thereof. The technical scheme adopted by the invention for solving the technical problems is as follows: comprises a polyester cloth layer; completely covering the wallpaper raw paper layer on the back of the polyester cloth layer; the water-based adhesive layer is arranged between the back surface of the polyester cloth layer and the raw paper layer of the wallpaper; coating a PVC (polyvinyl chloride) foaming coating on the front surface of the polyester fabric; and the surface printing coating is arranged on the surface of the PVC foaming coating. The PVC wide seamless wallcovering can realize the wide manufacturing of the PVC wallcovering, the width can reach 2.7 to 3.2 meters, the width can be larger according to the requirement, even can reach 5 to 10 meters, the continuous production of the whole batch of cloth can be realized in the length direction, the requirement of the seamless width is integrally realized, and the seamless paving and pasting of the decorative space in the up-down direction and the circumferential direction are realized.

Description

PVC (polyvinyl chloride) wide seamless wall cloth and manufacturing method thereof
Technical Field
The invention belongs to the technical field of decorative materials, and particularly relates to a PVC (polyvinyl chloride) wide seamless wall cloth and a manufacturing method thereof.
Background
The PVC coating has the functions of easy cleaning, water resistance and mildew resistance. In the prior art, PVC wallpaper directly coated with PVC on a paper surface is available, and the paper surface is easy to crack when the width or the length of the paper surface is larger due to limited toughness of the paper surface, so that the width and the length of a PVC wallpaper product are limited, the maximum width of the common PVC wallpaper is about 0.8-1 meter, and continuous seamless paving and pasting on a wall surface cannot be realized. The PVC wall cloth is directly coated on one surface of the cloth, but because the cloth has the characteristics of good toughness and insufficient rigidity, the PVC coating, the printing after coating and the embossing need to apply tension to the cloth, and the cloth can deform differently under the action of the tension, so that after the PVC coating, the printing and the embossing are finished, the problems that the PVC coating is not uniform, the printing and the embossing patterns deform and cannot match the patterns with the printing patterns exist after the tension of the cloth is released, in addition, the printing often involves multicolor overprinting, if the cloth is deformed inconsistently under the action of the tension, the problems can be gradually aggravated along with the increase of the width of the cloth, the quality and the impression of the PVC wall cloth are seriously influenced, and therefore, the width of the existing PVC wall cloth is greatly limited, generally only about 0.8-1 meter, and can not be continuously pasted on a wall surface like a wall paper without continuous wall surface seams.
Disclosure of Invention
The invention provides the PVC wide-width seamless wallcovering which can realize larger breadth, can ensure the even coating of PVC and the quality of wallcovering, can realize multicolor overprinting on the surface of a PVC coating, has better impression effect, and can realize continuous up-down direction and circumferential direction paving and pasting, and the manufacturing method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
comprises a polyester cloth layer;
completely covering the wallpaper raw paper layer on the back of the polyester cloth layer;
the water-based adhesive layer is arranged between the back surface of the polyester cloth layer and the raw paper layer of the wallpaper;
a PVC foaming coating coated on the front surface of the polyester fabric;
and the surface printing coating is arranged on the surface of the PVC foaming coating.
The invention conforms to the raw paper layer of the wallpaper on the back of the cloth layer, so that the product has rigidity and toughness, thereby ensuring that when the product is subjected to tension action in the procedures of PVC coating, printing, embossing and the like on the front of the cloth layer in the manufacturing process, the deformation of each part of the cloth layer is consistent, the tension is released after the procedures of PVC coating, printing, embossing and the like are completed, the uniformity of each part of the PVC coating on the front of the cloth layer can be ensured, the printed pattern and the embossed pattern are consistent with the design, in addition, under the rigid action of the raw paper layer of the wallpaper on the back of the cloth layer, the deformation of each part of the cloth layer under the tension action can be ensured to be consistent, thereby realizing the multicolor overprinting on the surface of the PVC foaming coating, and the matching of the embossed pattern and the printed pattern, thereby realizing the large-width manufacturing of the PVC wallcovering cloth, the width can reach 2.7 to 3.2 meters, according to needs, the width can be larger, even can reach 5 to 10 meters, the continuous production of the whole batch of the cloth can be realized, and the seamless pasting can be realized in the up-down direction and the circumferential direction of the decorative space.
Preferably, the wallpaper base paper layer is of a continuous uninterrupted structure, and the width of the wallpaper base paper layer is the same as that of the polyester cloth layer, so that the cloth layer can be continuously covered by the wallpaper base paper in the width direction and the length direction, the cloth layer and the wallpaper base paper can keep the same deformation under the action of tension in the width direction and the length direction after being compounded, and the quality and the integral impression of the PVC wall cloth are further ensured.
Preferably, the surface printing coating is a printed or embossed or a combination of printed and embossed structure. The structural design of the invention can realize continuous printing and embossing on four sides on the surface of the PVC foaming coating, and simultaneously, the embossed pattern can match with the printed pattern after printing.
Preferably, the width of the polyester cloth layer is 2.7 to 3.2 meters, and under the effect of compounding the wallpaper base paper and the cloth layer, the width of the PVC wall cloth can be 2.7 to 3.2 meters, so that the seamless paving and pasting in the vertical and circumferential directions on most occasions is realized.
The invention also provides a manufacturing method of the PVC wide seamless wallcovering, which comprises the following steps in sequence:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous adhesive, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth;
b, PVC coating: c, continuously and uniformly coating a paste containing PVC paste resin on the front side of the cloth of the product obtained in the step a, coating the paste on grey cloth, drying the grey cloth by hot air, cooling the dried cloth, and rolling the dried cloth for later use, wherein the back side of the cloth of the product obtained in the step a is provided with continuous composite wallpaper base paper, the front side of the cloth is provided with a uniform PVC coating, and the thickness of the PVC coating is 120-300g/m 2 (ii) a The coating is to uniformly coat the paste on the front surface of the cloth layer by using a coating knife. The drying is to use a gas heater to dry the surface coating of the cloth layer through a hot air circulating system so as to enable the PVC coating to be gelled. Between drying and printing, the hotter web is cooled to harden by circulating chilled water through two cooling wheels.
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern; the printing is to use a printing wheel and circulating ink, different patterns adopt different printing wheels, and the required wallhanging patterns are printed on the surface of the fabric. The ink is scraped by a special printing scraper. In the production process, the viscosity of the ink is measured by using a caliber measuring cup, and is controlled within 25-40 seconds, and the viscosity of the pearl powder, the gold powder and the ink can be properly relaxed to be within 60 seconds. During multicolor printing, the printing plates need to be dried, namely, between each printing plate, an independent gas heater is utilized, and the patterns printed each time are dried through hot air circulation, so that the ink confusion of the front printing plate and the rear printing plate is prevented.
d. Embossing: and c, heating the product obtained in the step c to soften and foam the PVC coating, pressing concave-convex embossing on the surface of the PVC coating by combining the printing pattern in the step c, applying tension to the cloth in the embossing process according to the design distinction between the embossing and the non-embossing, and cooling the embossed product to obtain the final product. The softening is to utilize the foaming oven to heat the surface fabric before the knurling to make it soften to be equipped with supplementary electrical heating cover, foaming oven heating system adopts the gas heating, and through hot air circulating system, the knurling is to utilize the knurling wheel oppress the surface fabric after the surface fabric softens the foaming, produces corresponding unsmooth impressed watermark effect. Embossing is divided into two types, i.e. register and non-register. The surface temperature is controlled to be a proper temperature between 168 and 185 ℃ at the moment that the fabric is contacted with the embossing wheel according to the embossing depth of the surface of the product, and the surface temperature is controlled to be within the range of plus or minus 10 percent in the whole batch production process after the temperature value is determined. After softening and embossing, the fabric is cooled and hardened by circulating chilled water through an air cooling system and two cooling wheels.
And c, continuously feeding the products obtained in the steps a, b and c into the next step through a production line without rolling.
Preferably, the paste component containing the PVC paste resin of step b is:
90-110 parts of PVC paste resin; 50-70 parts of DOP plasticizer; 65-85 parts of calcium carbonate; 2-4 parts of a stabilizer; 12-21 parts of titanium dioxide; 10-20 parts of a viscosity reducer; 1-3 parts of a foaming agent; 10-15 parts of D-80 solvent oil.
Wherein the stabilizer is PVC stabilizer, and can be potassium zinc stabilizer MGS-9303 or K-Zn (9004-2) or JL1501 or potassium zinc liquid stabilizer KZ-3608. The viscosity reducer is MGS-9301 or M-III (9211). The foaming agent is azophthalein ammonium potassium formate (AP) or Azodicarbonamide (AC). If flame-retardant wallpaper needs to be produced, 10-15 parts by weight of flame retardant is added. In addition, other components such as whitening agent, antioxidant and the like can be added according to different use requirements of the product. PVC powder, DOP and calcium carbonate are used as main parts of raw materials, wherein the calcium carbonate is used as a filling component. The three raw materials are transparent after being gelled, so that the titanium dioxide is required to be added to create a white base color to play a role in covering, the gelling process can be slowly carried out by the stabilizer, and the viscosity reducer is used for adjusting the viscosity of the paste. The viscosity of the paste during production is measured by using an 8MM caliber measuring cup and is controlled to be about 8-25 seconds.
Paste preparation and feeding sequence: (1) Weighing the DOP plasticizer and the viscosity reducer, and respectively putting into a charging basket; (2) Starting the stirrer, respectively adding the stabilizer, the foaming agent and the titanium dioxide, stirring at the speed of 1000rpm for 20 minutes, and then adding the materials; (3) Adding PVC paste resin powder while stirring, and continuously stirring; (4) adding calcium carbonate powder, and stirring for 10-15 minutes; (5) And D-80 solvent oil is added according to the appropriate viscosity of the paste to adjust the viscosity. The paste viscosity can be measured using an NDJ-1 rotational viscozer. (6) Adding the prepared paste into a three-roller grinding machine, grinding, filtering by using a metal net with more than 120 meshes, and filling into a charging basket for later use.
Preferably, the paste component containing the PVC paste resin of step b is:
95-105 parts of PVC paste resin; 55-65 parts of DOP plasticizer; 70-80 parts of calcium carbonate; 2.5-3.5 parts of a stabilizer; 15-18 parts of titanium dioxide; 12-18 parts of a viscosity reducer; 1.5-2.5 parts of foaming agent; 11-14 parts of D-80 solvent oil.
Preferably, the cloth is applied with a tension of 25 to 35Kgf before embossing and 17 to 30Kgf after embossing in the step d. The pre-embossing tension is 28-35Kgf and the post-embossing tension is 20-30Kgf when embossing is performed in a register, and the pre-embossing tension is 28-35Kgf and the post-embossing tension is 17-20Kgf when embossing is performed in a non-register.
Preferably, the printing tension control range in the step c is as follows: tension of discharging is 10-15Kgf, tension of discharging traction is 15-18Kgf, and tension of leading-out is 15-25Kgf.
Preferably, the hot air drying in the step b is divided into five zones: the temperature of the first zone is 150 +/-10 ℃, the temperature of the second zone is 170 +/-10 ℃, the temperature of the third zone is 200 +/-10 ℃, the temperature of the fourth zone is 200 +/-10 ℃ and the temperature of the fifth zone is 160 +/-10 ℃.
The wallpaper base paper is a conventional wallpaper base material and is not used as PVC coated or printed paper.
The invention has the advantages that:
the PVC wide-width seamless wallcovering can realize large-width manufacture of the PVC wallcovering, the width can reach 2.7 to 3.2 meters, the width can be larger according to the requirement, even 5 to 10 meters can be realized, the continuous production of the whole batch of cloth can be realized in the length direction, the requirement of seamless width can be integrally realized, and the seamless paving and pasting can be realized in the vertical direction and the circumferential direction of a decorative space.
Drawings
FIG. 1 is a schematic structural view of the PVC wallcovering of the invention;
FIG. 2 is a schematic view of the structure of the present invention after being attached to a wall;
in the figure: 1. 2, a PVC foaming coating, 2, a cloth layer, 3, a water-based adhesive layer, 4, a wallpaper raw paper layer, 5, a glue layer paving and pasting, 6, a paved wall body, 7, and a surface printing coating.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the invention is not limited to the following examples, and that any changes and/or modifications may be made to the invention as described herein.
In the invention, all parts and percentages are weight units, and all equipment and raw materials can be purchased from the market or commonly used in the industry.
Example 1:
the PVC wide seamless wallhanging shown in figure 1 comprises a polyester fabric layer 2; the wallpaper raw paper layer 4 completely covers the back surface of the polyester cloth layer 2; the water-based adhesive layer 3 is arranged between the back surface of the polyester cloth layer and the raw paper layer of the wallpaper; the PVC foaming coating 1 coated on the front surface of the polyester fabric, and the surface printing coating 7 is arranged on the surface of the PVC foaming coating 1. The surface printing coating 7 is a printing layer and an embossing structure, and the patterns and the embossing of the printing layer are arranged in a matching way.
As shown in figure 2, when the PVC wall cloth is paved, cold glue is coated on the leveled surface of the paved wall body, then the cold glue is combined with the wall paper raw paper layer, and the wall body is leveled after being paved.
The manufacturing method of the PVC wall cloth is carried out according to the following steps in sequence:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous adhesive, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth; the obtained product continuously enters the next step through a production line without being rolled.
b, PVC coating: c, continuously and uniformly coating a paste containing PVC paste resin on the front side of the cloth of the product obtained in the step a, coating the paste on the grey cloth, and then drying the grey cloth by hot air, wherein the hot air drying is divided into five areas: the first zone is at 150 ℃ +/-10 ℃, the second zone is at 170 ℃ +/-10 ℃, the third zone is at 200 ℃ +/-10 ℃, the fourth zone is at 200 ℃ +/-10 ℃ and the fifth zone is at 160 ℃ +/-10 ℃. The dried cloth is cooled and hardened by circulating chilled water through two cooling wheels, the back of the cloth product obtained in the step is provided with continuous composite wallpaper base paper, the front of the cloth product is provided with a uniform PVC coating, and the thickness of the PVC coating is 120g/m & lt 2 > the coating is to uniformly coat the paste on the front surface of the cloth layer by using a coating knife. The drying is to use a gas heater to dry the surface coating of the cloth layer through a hot air circulating system so as to enable the PVC coating to be gelled. The obtained product continuously enters the next step through a production line without being rolled.
The paste composition comprising the PVC paste resin was: 90 parts of PVC paste resin; 50 parts of DOP plasticizer; 65 parts of calcium carbonate; 2 parts of a potassium zinc stabilizer MGS-9303; 12 parts of titanium dioxide; 10 parts of viscosity reducer with the model number of MGS-9301; 1 part of azo potassium methanesulfonate (AP) foaming agent; 10 parts of D-80 solvent oil. (the stabilizers, viscosity reducers, and foaming agents in the examples are suggested to indicate specific substances that might otherwise be disclosed inadequately)
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern; the printing is to use a printing wheel and circulating ink, different patterns adopt different printing wheels, and the required wallhanging patterns are printed on the surface of the fabric. The ink is scraped by a special printing scraper. In the production process, the viscosity of the ink is measured by using a caliber measuring cup, and is controlled within 25-40 seconds, and the viscosity of the pearl powder, the gold powder and the ink can be properly relaxed to be within 60 seconds. During multicolor printing, the printing plates need to be dried, namely, between each printing plate, an independent gas heater is utilized, and the patterns printed each time are dried through hot air circulation, so that the ink confusion of the front printing plate and the rear printing plate is prevented. The obtained product continuously enters the next step through a production line without being rolled.
d. Embossing: heating the product obtained in the step c to soften and foam the PVC coating, pressing embossing on the surface of the PVC coating by combining the printing pattern in the step c, aligning the embossing with the printing pattern in the step c, applying tension to the cloth in the embossing process, wherein the tension before embossing is 28-35Kgf, the tension after embossing is 20-30Kgf, and cooling the embossed product to obtain a final product; the softening is to utilize the foaming oven to heat the surface fabric before the knurling to make it soften to be equipped with supplementary electrical heating cover, foaming oven heating system adopts the gas heating, and through hot air circulating system, the knurling is to utilize the knurling wheel oppress the surface fabric after the surface fabric softens, produces corresponding impressed watermark effect. The surface temperature is controlled to be a proper temperature between 168 ℃ and 185 ℃ at the moment that the fabric is contacted with the embossing wheel according to the embossing depth of the surface of the product, and the surface temperature is controlled to be within the range of plus or minus 10% in the whole batch of product production process after the temperature value is determined. After softening and embossing, the fabric is cooled and hardened by circulating chilled water through an air cooling system and two cooling wheels.
And (5) rolling and warehousing the printed products after the printing is qualified through inspection.
Example 2:
the PVC wide seamless wallhanging shown in figure 1 comprises a polyester fabric layer 2; the wallpaper raw paper layer 4 completely covers the back surface of the polyester cloth layer 2; a water-based adhesive layer 3 arranged between the back of the polyester cloth layer and the raw paper layer of the wallpaper; the PVC foaming coating 1 coated on the front surface of the polyester fabric, and the surface printing coating 7 is arranged on the surface of the PVC foaming coating 1. The surface printing coating 7 is a printing layer and an embossing structure, and the patterns and the embossing of the printing layer are arranged in a matching way.
As shown in figure 2, when the PVC wall cloth is paved, cold glue is coated on the leveled surface of the paved wall body, then the cold glue is combined with the wall paper raw paper layer, and the wall body is leveled after being paved.
The manufacturing method of the PVC wall cloth is carried out according to the following steps in sequence:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous glue, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth;
b, PVC coating: c, continuously and uniformly coating a paste containing PVC paste resin on the front side of the cloth of the product obtained in the step a, coating the paste on the grey cloth, and then drying the grey cloth by hot air, wherein the hot air drying is divided into five areas: the temperature of the first zone is 150 +/-10 ℃, the temperature of the second zone is 170 +/-10 ℃, the temperature of the third zone is 200 +/-10 ℃, the temperature of the fourth zone is 200 +/-10 ℃ and the temperature of the fifth zone is 160 +/-10 ℃. The dried cloth is cooled and hardened by circulating chilled water through two cooling wheels, the back of the cloth product obtained in the step is provided with continuous composite wallpaper base paper, the front of the cloth product is provided with a uniform PVC coating, and the thickness of the PVC coating is 300g/m & lt 2 > the coating is to uniformly coat the paste on the front surface of the cloth layer by using a coating knife. And the drying is to use a gas heater to dry the surface coating of the cloth layer through a hot air circulation system so as to gelatinize the PVC coating.
110 parts of PVC paste resin; 70 parts of DOP plasticizer; 85 parts of calcium carbonate; 4 parts of a potassium zinc stabilizer MGS-9303; 21 parts of titanium dioxide; 20 parts of viscosity reducer with the model number of MGS-9301; 3 parts of Azodicarbonamide (AC) foaming agent; 15 parts of D-80 solvent oil.
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern; the printing is to use a printing wheel and circulating ink, different patterns adopt different printing wheels, and the required wallhanging patterns are printed on the surface of the fabric. The scraping ink adopts a special printing scraper. In the production process, the viscosity of the ink is measured by using a caliber measuring cup, and is controlled within 25-40 seconds, and the viscosity of the pearl powder, the gold powder and the ink can be properly relaxed to be within 60 seconds. During multicolor printing, the printing plates need to be dried, namely, between each printing plate, an independent gas heater is utilized, and the patterns printed each time are dried through hot air circulation, so that the ink confusion of the front printing plate and the rear printing plate is prevented.
d. Embossing: c, heating the product obtained in the step c to soften and foam the PVC coating, pressing embossing on the surface of the PVC coating by combining the printing pattern in the step c, aligning the embossing with the printing pattern in the step c, applying tension to the cloth in the embossing process, wherein the tension before embossing is 28-35Kgf, the tension after embossing is 20-30Kgf, and cooling the embossed product to obtain a final product; the softening is to heat the fabric by a foaming oven before embossing to soften the fabric, and an auxiliary electric heating cover is arranged, the heating mode of the foaming oven adopts gas heating, and embossing is to press the fabric by an embossing wheel after the fabric is softened by a hot air circulation system to generate a corresponding embossing effect. The surface temperature is controlled to be a proper temperature between 168 ℃ and 185 ℃ at the moment that the fabric is contacted with the embossing wheel according to the embossing depth of the surface of the product, and the surface temperature is controlled to be within the range of plus or minus 10% in the whole batch of product production process after the temperature value is determined. After softening and embossing, the fabric is cooled and hardened by circulating chilled water through an air cooling system and two cooling wheels.
And (5) rolling and warehousing the printed products after inspection and qualification.
Example 3:
the PVC wide seamless wallhanging shown in figure 1 comprises a polyester fabric layer 2; the wallpaper raw paper layer 4 completely covers the back of the polyester cloth layer 2; a water-based adhesive layer 3 arranged between the back of the polyester cloth layer and the raw paper layer of the wallpaper; the PVC coating 1 coated on the front surface of the terylene fabric and the surface of the PVC foaming coating 1 are provided with surface printing coatings 7. The surface printing coating 7 is a printing layer and an embossing structure, and the patterns and the embossing of the printing layer are arranged in a non-register way.
As shown in figure 2, when the PVC wallcovering is laid and attached, cold glue is coated on the leveled surface of the laid and attached wall, then the cold glue is combined with the wallpaper raw paper layer, and the PVC wallcovering is laid and attached continuously in the vertical direction and the circumferential direction of the surface of the laid and attached wall, and after the PVC wallcovering is laid and attached, redundant wallcoverings on the upper edge and the lower edge of the wall are cut by a craft knife.
The manufacturing method of the PVC wall cloth is carried out according to the following steps in sequence:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous glue, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth;
b, PVC coating: c, continuously and uniformly coating a paste containing PVC paste resin on the front side of the cloth of the product obtained in the step a, coating the paste on the grey cloth, and then drying the grey cloth by hot air, wherein the hot air drying is divided into five areas: the first zone is at 150 ℃ +/-10 ℃, the second zone is at 170 ℃ +/-10 ℃, the third zone is at 200 ℃ +/-10 ℃, the fourth zone is at 200 ℃ +/-10 ℃ and the fifth zone is at 160 ℃ +/-10 ℃. The cloth after drying is cooled and hardened by circulating chilled water through two cooling wheels, the back of the cloth product obtained in the step is provided with continuous composite wallpaper base paper, the front of the cloth product is provided with an even PVC coating, and the thickness of the PVC coating is 180g/m 2 (ii) a The coating is to uniformly coat the paste on the front surface of the cloth layer by using a coating knife. The drying is to use a gas heater to dry the surface coating of the cloth layer through a hot air circulating system so as to enable the PVC coating to be gelled.
95 parts of PVC paste resin; 55 parts of DOP plasticizer; 70 parts of calcium carbonate; 2.5 parts of K-Zn (9004-2) stabilizer; 15 parts of titanium dioxide; 12 parts of M-III (9211) viscosity reducer; 1.5 parts of azo potassium formamide (AP) foaming agent; 11 parts of D-80 solvent oil.
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern; the printing is to use a printing wheel and circulating ink, different patterns adopt different printing wheels, and the required wallcovering patterns are printed on the surface of the fabric. The ink is scraped by a special printing scraper. In the production process, the viscosity of the ink is measured by using a caliber measuring cup, and is controlled within 25-40 seconds, and the viscosity of the pearl powder, the gold powder and the ink can be properly relaxed to be within 60 seconds. During multicolor printing, the printing plates need to be dried, namely, between each printing plate, an independent gas heater is utilized, and the patterns printed each time are dried through hot air circulation, so that the ink confusion of the front printing plate and the rear printing plate is prevented.
d. Embossing: and c, heating the product obtained in the step c to soften and foam the PVC coating, pressing embossing on the surface of the PVC coating by combining the printing pattern in the step c, and aligning the embossing with the printing pattern in the step c, wherein tension is applied to the cloth in the embossing process, the tension before pressing and embossing is 28-35Kgf, and the tension after embossing is 17-20Kgf. Cooling the embossed product to obtain a final product; the softening is to utilize the foaming oven to heat the surface fabric before the knurling to make it soften to be equipped with supplementary electrical heating cover, foaming oven heating system adopts the gas heating, and through hot air circulating system, the knurling is to utilize the knurling wheel oppress the surface fabric after the surface fabric softens, produces corresponding impressed watermark effect. The surface temperature is controlled to be a proper temperature between 168 ℃ and 185 ℃ at the moment that the fabric is contacted with the embossing wheel according to the embossing depth of the surface of the product, and the surface temperature is controlled to be within the range of plus or minus 10% in the whole batch of product production process after the temperature value is determined. After softening and embossing, the fabric is cooled and hardened by circulating chilled water through an air cooling system and two cooling wheels.
And (5) rolling and warehousing the printed products after the printing is qualified through inspection.
Example 4:
the PVC wide seamless wallhanging shown in figure 1 comprises a polyester cloth layer 2; the wallpaper raw paper layer 4 completely covers the back surface of the polyester cloth layer 2; the water-based adhesive layer 3 is arranged between the back surface of the polyester cloth layer and the raw paper layer of the wallpaper; the PVC coating 1 coated on the front surface of the polyester fabric, and the surface of the PVC foaming coating 1 are provided with a surface printing coating 7. The surface printing coating 7 is a printing layer and an embossing structure, and the pattern and the embossing of the printing layer are arranged in a non-register way.
As shown in figure 2, when the PVC wall cloth is paved, cold glue is coated on the leveled surface of the paved wall body, then the cold glue is combined with the wall paper raw paper layer, and the wall body is leveled after being paved.
The manufacturing method of the PVC wall cloth is carried out according to the following steps in sequence:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous adhesive, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth;
PVC coating: c, continuously and uniformly coating a paste containing PVC paste resin on the front side of the cloth of the product obtained in the step a, coating the paste on the grey cloth, and then drying the grey cloth by hot air, wherein the hot air drying is divided into five areas: the first zone is at 150 ℃ +/-10 ℃, the second zone is at 170 ℃ +/-10 ℃, the third zone is at 200 ℃ +/-10 ℃, the fourth zone is at 200 ℃ +/-10 ℃ and the fifth zone is at 160 ℃ +/-10 ℃. The cloth after drying is cooled and hardened by circulating chilled water through two cooling wheels, the back of the cloth product obtained in the step is provided with continuous composite wallpaper base paper, the front of the cloth product is provided with a uniform PVC coating, and the thickness of the PVC coating is 240g/m 2 (ii) a The coating is to uniformly coat the paste on the front surface of the cloth layer by using a coating knife. The drying is to use a gas heater to dry the surface coating of the cloth layer through a hot air circulating system so as to enable the PVC coating to be gelled.
105 parts of PVC paste resin; 65 parts of DOP plasticizer; 80 parts of calcium carbonate; JL1501 3.5 parts of stabilizer; 18 parts of titanium dioxide; 18 parts of viscosity reducer with the model number of MGS-9301; 3 parts of azo potassium methanesulfonate (AP) foaming agent; 14 parts of D-80 solvent oil.
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern; the printing is to use a printing wheel and circulating ink, different patterns adopt different printing wheels, and the required wallcovering patterns are printed on the surface of the fabric. The ink is scraped by a special printing scraper. In the production process, the viscosity of the ink is measured by using a caliber measuring cup, and is controlled within 25-40 seconds, and the viscosity of the pearl powder, the gold powder and the ink can be properly relaxed to be within 60 seconds. During multicolor printing, the printing plates need to be dried, namely, between each printing plate, an independent gas heater is utilized, and the patterns printed each time are dried through hot air circulation, so that the ink confusion of the front printing plate and the rear printing plate is prevented.
d. Embossing: and c, heating the product obtained in the step c to soften and foam the PVC coating, pressing embossing on the surface of the PVC coating by combining the printing pattern in the step c, and aligning the embossing with the printing pattern in the step c, wherein tension is applied to the cloth in the embossing process, the tension before pressing and embossing is 28-35Kgf, and the tension after embossing is 17-20Kgf. Cooling the embossed product to obtain a final product; the softening is to heat the fabric by a foaming oven before embossing to soften the fabric, and an auxiliary electric heating cover is arranged, the heating mode of the foaming oven adopts gas heating, and embossing is to press the fabric by an embossing wheel after the fabric is softened by a hot air circulation system to generate a corresponding embossing effect. The surface temperature is controlled to be a proper temperature between 168 and 185 ℃ at the moment that the fabric is contacted with the embossing wheel according to the embossing depth of the surface of the product, and the surface temperature is controlled to be within plus or minus 10 percent in the whole batch production process after the temperature value is determined. After softening and embossing, the fabric is cooled and hardened by circulating chilled water through an air cooling system and two cooling wheels.
And (5) rolling and warehousing the printed products after inspection and qualification.
Example 5:
the PVC wide seamless wallhanging shown in figure 1 comprises a polyester cloth layer 2; the wallpaper raw paper layer 4 completely covers the back surface of the polyester cloth layer 2; a water-based adhesive layer 3 arranged between the back of the polyester cloth layer and the raw paper layer of the wallpaper; the PVC coating 1 coated on the front surface of the polyester fabric, and the surface of the PVC foaming coating 1 are provided with a surface printing coating 7. The surface printing coating 7 is a printing layer and an embossing structure, and the patterns and the embossing of the printing layer are arranged in a matching way.
As shown in figure 2, when the PVC wall cloth is paved, cold glue is coated on the leveled surface of the paved wall body, then the cold glue is combined with the wall paper raw paper layer, and the wall body is leveled after being paved.
The manufacturing method of the PVC wall cloth is carried out according to the following steps in sequence:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous adhesive, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth;
PVC coating: in the step ofa, continuously and uniformly coating a paste containing PVC paste resin on the front surface of the cloth of the obtained product, coating the paste on the grey cloth, and then drying the grey cloth by hot air, wherein the hot air drying is divided into five areas: the first zone is at 150 ℃ +/-10 ℃, the second zone is at 170 ℃ +/-10 ℃, the third zone is at 200 ℃ +/-10 ℃, the fourth zone is at 200 ℃ +/-10 ℃ and the fifth zone is at 160 ℃ +/-10 ℃. The cloth after drying is cooled and hardened by circulating chilled water through two cooling wheels, the back of the cloth product obtained in the step is provided with continuous composite wallpaper base paper, the front of the cloth product is provided with a uniform PVC coating, and the thickness of the PVC coating is 210g/m 2 (ii) a The coating is to uniformly coat the paste on the front surface of the cloth layer by using a coating knife. And the drying is to use a gas heater to dry the surface coating of the cloth layer through a hot air circulation system so as to gelatinize the PVC coating.
100 parts of PVC paste resin; 60 parts of DOP plasticizer; 75 parts of calcium carbonate; 3 parts of potassium-zinc liquid KZ-3608 stabilizer; 16 parts of titanium dioxide; 15 parts of viscosity reducer with the model number of MGS-9301; 2.5 parts of azo potassium methanesulfonate (AP) foaming agent; 12 parts of D-80 solvent oil.
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern; the printing is to use a printing wheel and circulating ink, different patterns adopt different printing wheels, and the required wallcovering patterns are printed on the surface of the fabric. The scraping ink adopts a special printing scraper. In the production process, the viscosity of the ink is measured by using a caliber measuring cup, and is controlled within 25-40 seconds, and the viscosity of the pearl powder, the gold powder and the ink can be properly relaxed to be within 60 seconds. During multicolor printing, the printing plates need to be dried, namely, between each printing plate, an independent gas heater is utilized, and the patterns printed each time are dried through hot air circulation, so that the ink confusion of the front printing plate and the rear printing plate is prevented.
d. Embossing: c, heating the product obtained in the step c to soften and foam the PVC coating, pressing embossing on the surface of the PVC coating by combining the printing pattern in the step c, aligning the embossing with the printing pattern in the step c, applying tension to the cloth in the embossing process, wherein the tension before embossing is 28-35Kgf, the tension after embossing is 20-30Kgf, and cooling the embossed product to obtain a final product; the softening is to heat the fabric by a foaming oven before embossing to soften the fabric, and the fabric is provided with an auxiliary electric heating cover, wherein the heating mode of the foaming oven adopts gas heating and passes through a hot air circulating system. The embossing means that after the fabric is softened, the fabric is pressed by an embossing wheel to generate a corresponding embossing effect. The surface temperature is controlled to be a proper temperature between 168 ℃ and 185 ℃ at the moment that the fabric is contacted with the embossing wheel according to the embossing depth of the surface of the product, and the surface temperature is controlled to be within the range of plus or minus 10% in the whole batch of product production process after the temperature value is determined. After softening and embossing, the fabric is cooled and hardened by circulating chilled water through an air cooling system and two cooling wheels.
And (5) rolling and warehousing the printed products after inspection and qualification.

Claims (10)

1. The utility model provides a seamless wallhanging of PVC broad width which characterized in that:
comprises a polyester cloth layer;
completely covering the wallpaper raw paper layer on the back of the polyester cloth layer;
the water-based adhesive layer is arranged between the back surface of the polyester cloth layer and the raw paper layer of the wallpaper;
a PVC foaming coating coated on the front surface of the polyester fabric;
and the surface printing coating is arranged on the surface of the PVC foaming coating.
2. The PVC wide width seamless wallcovering of claim 1, wherein: the wallpaper raw paper layer is of a continuous uninterrupted structure, and the width of the wallpaper raw paper layer is the same as that of the polyester cloth layer.
3. The PVC broad width seamless wallcovering according to claim 1 or 2, wherein: the surface printing coating is a printing structure or an embossing structure or a printing and embossing combined structure.
4. The PVC broad width seamless wallcovering according to claim 1 or 2, wherein: the breadth of the polyester cloth layer is 2.7-3.2 meters.
5. The method for manufacturing the PVC broad width seamless wallcovering according to any one of claims 1 to 4, which comprises the following sequential steps:
a. compounding gray fabric and a wallpaper raw paper layer: compounding a whole roll of cloth with the width of 2.7-3.2 meters with a whole roll of wallpaper base paper by using aqueous adhesive, wherein the width of the wallpaper base paper is the same as that of the cloth, the wallpaper base paper is compounded on the back of the cloth, and the wallpaper base paper is continuously compounded on the back of the cloth;
PVC coating: c, continuously and uniformly coating a paste containing PVC paste resin on the front side of the cloth of the product obtained in the step a, coating the paste on grey cloth, drying the grey cloth by hot air, cooling the dried cloth, and rolling the dried cloth for later use, wherein the back side of the cloth of the product obtained in the step a is provided with continuous composite wallpaper base paper, the front side of the cloth is provided with a uniform PVC coating, and the thickness of the PVC coating is 120-300g/m 2 ；
c. Printing: b, printing a required pattern on the surface of the PVC coating obtained in the step b, drying the printed pattern after printing the pattern, and applying tension to the cloth to flatten the surface of the PVC coating when printing the pattern;
d. embossing: and c, heating the product obtained in the step c to soften and foam the PVC coating, pressing concave-convex embossing on the surface of the PVC coating by combining the printing pattern in the step c, distinguishing embossing from non-embossing according to design, applying tension to the cloth in the embossing process, and cooling the embossed product to obtain the final product.
6. The method for manufacturing the PVC wide width seamless wallcovering according to claim 5, wherein the paste composition containing the PVC paste resin of the step b is:
90-110 parts of PVC paste resin; 50-70 parts of DOP plasticizer; 65-85 parts of calcium carbonate; 2-4 parts of a stabilizer; 12-21 parts of titanium dioxide; 10-20 parts of a viscosity reducer; 1-3 parts of a foaming agent; 10-15 parts of D-80 solvent oil.
7. The method for manufacturing the PVC wide width seamless wallcovering according to claim 6, wherein the paste composition containing the PVC paste resin of the step b is:
95-105 parts of PVC paste resin; 55-65 parts of DOP plasticizer; 70-80 parts of calcium carbonate; 2.5-3.5 parts of a stabilizer; 15-18 parts of titanium dioxide; 12-18 parts of a viscosity reducer; 1.5-2.5 parts of foaming agent; 11-14 parts of D-80 solvent oil.
8. The method for manufacturing PVC broad width seamless wallcovering according to claim 5, 6 or 7, wherein in the step d, tension of 25-35Kgf is applied to the cloth before embossing, and tension of 17-30Kgf is applied after embossing.
9. The method for manufacturing PVC broad width seamless wallcovering according to claim 5, 6 or 7, wherein the printing tension control range in the step c is as follows: the tension of discharging is 10-15Kgf, the tension of discharging traction is 15-18Kgf, and the drawing tension is 15-25Kgf.
10. The method for manufacturing the PVC broad width seamless wallcovering according to the claim 5, 6 or 7, characterized in that the temperature of the hot air drying in the step b is divided into five zones: the temperature of the first zone is 150 +/-10 ℃, the temperature of the second zone is 170 +/-10 ℃, the temperature of the third zone is 200 +/-10 ℃, the temperature of the fourth zone is 200 +/-10 ℃ and the temperature of the fifth zone is 160 +/-10 ℃.
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