CN113373703B - Nonwoven material for wall decoration - Google Patents

Nonwoven material for wall decoration Download PDF

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Publication number
CN113373703B
CN113373703B CN202010160776.5A CN202010160776A CN113373703B CN 113373703 B CN113373703 B CN 113373703B CN 202010160776 A CN202010160776 A CN 202010160776A CN 113373703 B CN113373703 B CN 113373703B
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nonwoven material
coating
wall decoration
wall
polyester filament
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CN113373703A (en
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彭鹏
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Toray Fibers and Textiles Research Laboratories China Co Ltd
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Toray Fibers and Textiles Research Laboratories China 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
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0002—Wallpaper or wall covering on textile basis
    • 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
    • D06N3/0011—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 non-woven fabrics
    • 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
    • D06N3/0056—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
    • 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
    • D06N3/042—Acrylic polymers
    • 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
    • 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
    • D06N3/12—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 otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—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 otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/30—Ink jet printing
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/10—Properties of the materials having mechanical properties
    • D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/14—Properties of the materials having chemical properties
    • D06N2209/142—Hydrophobic
    • 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)
  • Dispersion Chemistry (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a nonwoven material for wall decoration, which comprises a polyester filament non-woven fabric substrate layer and a coating layer on at least one surface of the substrate layer, wherein the surface evenness of the material is 1-10 mu m, and the effective width of the material is 2.8-3.1 m. The nonwoven material for wall decoration has the characteristics of good water resistance, vivid printing effect and seamless adhesion.

Description

Nonwoven material for wall decoration
Technical Field
The invention relates to a nonwoven material for wall decoration.
Background
Wall decoration materials such as wallpaper, wall cloth and the like are paper or cloth sheet-shaped base materials attached to the inner walls and ceilings of buildings and the like, and mainly play roles in preventing wall mildew and decoration.
However, most of wallpaper materials in the current market are paper materials, so that the wallpaper materials have low strength and poor waterproof effect, and cannot be made into wide-width materials. The clean height of the common house in China family is 2.6-3.2 m, and the wallpaper material in the market is narrower in width, so that joints can be generated when the common house is attached, the joints are easy to warp, the attractiveness can be affected, and the joints have no protection effect on the wall.
In addition, the seamless wall cloth materials appearing on the market at present mainly comprise woven fabrics and non-woven fabrics, and most of the seamless wall cloth materials are manufactured by laminating fabrics and spunlaced non-woven fabrics, and can meet the requirement of wide width, but the waterproof performance of the materials is general, and compared with the wallpaper materials, the patterns of the wall cloth are single, and the color patterns are not rich. Moreover, since the surface flatness cannot be as flat as paper, the printing effect is poor, and thus, the favorite shape and pattern cannot be freely selected. In addition, because the wall cloth has heavier gram weight and thicker thickness, the construction difficulty can be correspondingly increased, and the trace can be obvious at the unavoidable joint, thereby influencing the appearance. On the other hand, the elongation rate of the wall cloth material prepared by laminating the fabric and the spunlaced non-woven fabric is generally large, and when the wall cloth material is in laminating construction, the stretching elongation can lead to deformation and elongation of the cloth surface pattern, so that the pattern distribution is irregular, and the attractiveness is influenced.
Aiming at the problems of wall decoration materials such as wallpaper wall cloth, product developers are also continuously exploring good solutions, such as Chinese patent publication No. CN104141370A discloses a wide digital printing polyester wall cloth, which is prepared by padding materials with waterproof finishing agents to ensure that the materials have good waterproof and oil-proof effects, but the polyester wall cloth is formed by common fabrics, has great restrictions on colors and patterns, has overlarge product thickness and large elongation, is easy to deform in pasting construction, has no excellent water pressure resistance, and has a certain bottleneck on the protection effect of the wall surface.
As another example, chinese patent CN108505216a discloses a method for producing a spun-bonded nonwoven fabric of polyester filaments, which solves the problem of product strength, but the material has poor surface flatness due to the adoption of the needling reinforcement mode, does not have good printing effect, and has poor concealment due to no processing such as compounding.
Disclosure of Invention
The invention aims to provide a nonwoven material for wall decoration, which has good waterproof property, vivid printing effect and seamless adhesion.
The technical scheme of the invention is as follows: the nonwoven material for wall decoration comprises a polyester filament nonwoven fabric substrate layer and a coating layer on at least one surface of the substrate layer, wherein the surface flatness of the material is 1-10 mu m, and the effective width of the material is 2.8-3.1 m.
The coating layer preferably contains 5 to 50% by weight of titanium dioxide powder.
The viscosity average relative molecular weight of the polyester filaments constituting the polyester filament nonwoven fabric substrate layer is preferably 35000 to 45000.
The diameter of the polyester filaments constituting the polyester filament nonwoven fabric substrate layer is preferably 5 to 20. Mu.m.
The surface flatness of the polyester filament non-woven fabric substrate layer is preferably 3-7 mu m.
The coating amount of the coating layer is preferably 30 to 200g/m 2 。
The gram weight of the nonwoven material for wall decoration is preferably 100-400 g/m 2 。
The nonwoven material for wall decoration of the present invention preferably comprises a printed layer.
The strength of the nonwoven material for wall decoration of the present invention is preferably 50 to 500N/5cm.
The elongation of the nonwoven material for wall decoration of the present invention is preferably 2 to 20%.
The invention has the beneficial effects that: compared with the existing wallpaper material, the invention adopts the terylene filament non-woven fabric with excellent waterproof and strength properties, the prepared non-woven material for wall decoration has good waterproof property, and the non-woven material has wider breadth, so that the non-woven material can be adhered to the wall surface in a seamless way; on the other hand, the non-woven fabric material for wall decoration has vivid printing effect due to the adoption of the non-woven fabric material with water resistance, flat surface and low elongation, and the product has the characteristics of regular pattern and no deformation due to the low elongation of the material.
Detailed Description
The nonwoven material for wall decoration comprises a polyester filament nonwoven fabric substrate layer and a coating layer on at least one surface of the substrate layer, wherein the surface flatness of the material is 1-10 mu m, and the effective width of the material is 2.8-3.1 m. The base material layer is formed by polyester filament non-woven fabrics, and the aperture of the obtained base material is smaller due to the adoption of the polyester filament non-woven fabrics with fine fineness, so that fine water drops can be blocked, and the prepared non-woven material for wall decoration has excellent waterproof performance. In addition, due to the filament structure, when the prepared base material is acted by force, entanglement, slippage and falling off among fibers are not generated, so that the strong performance of the base material is better. The gram weight of the polyester filament non-woven fabric substrate layer is preferably 50-200 g/m 2 If the gram weight of the polyester filament non-woven fabric substrate layer is too low, the prepared non-woven material for wall decoration is too light and thin, the strength is limited to a certain extent, and when at least one surface of the substrate contains a coating layer, the coating layer processing needs great engineering tension, so that the substrate layer with too low gram weight has the hidden trouble of breakage; if the gram weight of the polyester filament non-woven fabric substrate layer is too high, the prepared non-woven material for wall decoration is too thick and too hard, the package material cannot be spread flatly after being unfolded, andeven after spreading, the difficulty of the wall surface pasting construction is greatly increased due to the large width during the seamless pasting and the too thick material.
The substrate layer of the invention is provided with a coating layer on at least one surface, and the purpose of the coating layer is to improve the shielding property of the material and endow the material with certain functionality. The coating agent on the coating layer is preferably polyacrylate, polyurethane or polyvinyl chloride, wherein the polyacrylate coating agent is a polymer formed by copolymerizing polyacrylate, methyl polyacrylate and other unsaturated monomers, the hardness degree of the polyacrylate coating agent can be adjusted according to the composition proportion, and the polyacrylate coating agent has the advantages of softness, dry cleaning resistance, wear resistance, aging resistance and the like, also has good light heat resistance, and can be subjected to foaming coating processing, so the coating agent on the coating layer is more preferably polyacrylate. In addition, in order to make the nonwoven material for wall decoration of the present invention have a certain functionality, a functional finishing agent such as water-proof, flame-retardant, formaldehyde-removing, antistatic, antibacterial, antifouling, wear-resistant, negative ion and the like may be further added to the coating agent.
The surface evenness of the nonwoven material for wall decoration is 1-10 mu m, the common textile material comprises nonwoven materials, the surface evenness is more than 15 mu m, if the surface of the material is uneven, the surface of the material has a plurality of water storage pores, so that the water resistance of the material is poor, in addition, the printability of the material is poor due to the uneven surface of the material, the pattern is printed, and the pattern effect is greatly reduced. The substrate layer is formed by polyester filament non-woven fabrics, and the performance and the surface flatness of the prepared non-woven material for wall decoration are greatly improved by adopting resin raw materials with narrow molecular weight distribution and a special process. The special process adopts a smooth roller method, the surface of the material is free of rolling points and embossing, so that the surface of the material is smooth like a film, the smooth roller can be made of a steel roller or a rubber roller, and the smooth roller has certain elasticity due to high friction force of the rubber roller and can be matched with the steel roller for use, and the flatness can be optimized. In general, the material of the spun-bonded non-woven fabric is composed of polypropylene filaments, and when the spun-bonded non-woven fabric is reinforced, the polypropylene material is soft and easy to form a film, so that in order to ensure the air permeability of the spun-bonded non-woven fabric, only the reinforcing and forming can be performed by adopting a rolling point embossing or needling and water needling mode, and the result is uneven surface of the material. The flatness of the nonwoven material for wall decoration must be controlled within a certain range, if the surface flatness of the nonwoven material is less than 1 mu m, the surface of the material is very compact, so that the air permeability of the material is greatly reduced, and gas can not escape during use, thereby causing the phenomenon of foaming on the surface of the nonwoven material; if the surface evenness of the nonwoven material is more than 10 μm, there are very many water-storing pores on the surface of the material, resulting in poor water repellency of the material, and in addition, the printability of the material is deteriorated due to the unevenness of the surface of the material, the pattern is printed, and the pattern effect is not realistic. In view of the realistic printing effect and excellent water repellency of the nonwoven material for wall decoration of the present invention, the nonwoven material preferably has a surface evenness of 3 to 7. Mu.m, more preferably 4 to 6. Mu.m.
The effective width of the nonwoven material for wall decoration is 2.8-3.1 m, and the nonwoven material can be subjected to mass production processing with large width and is applied to seamless wallpaper. The legal requirements of the layer height of the Chinese family house are above 2.7m, and the allowance of the trimming and alignment is considered, so that the effective width of the material is above 2.8 m; the visibility of the naked eyes is 124 degrees, but the part exceeding 30 degrees can be called the afterlight of the sight, the optimal ornamental visibility is 10-20 degrees, if the length and width directions are both beyond the optimal visibility range of the human eyes, the naked eyes can be tired due to frequent rotation when the patterns of the wall cloth are appreciated, and the eyesight is affected, so that the effective width of the material is required to be below 3.1m. If the effective width of the nonwoven material is higher than 3.1m, people can easily feel tired when watching patterns, and meanwhile, the difficulty of production, transportation and construction of the material can be greatly improved.
The coating layer preferably contains 5 to 50% by weight of titanium dioxide powder. Titanium dioxide is commonly called titanium dioxide, and can be classified into anatase type titanium dioxide and rutile type titanium dioxide according to the crystal form, wherein the anatase type titanium dioxide powder has higher whiteness and better concealment, and the stability of the anatase type titanium dioxide is enough to meet the use requirement when the titanium dioxide is used indoors, so the titanium dioxide powder in the coating layer is preferably the anatase type titanium dioxide powder. The titanium dioxide powder content in the coating layer of the present invention is preferably 5 to 50% by weight. When the content of the titanium dioxide powder reaches more than 5%, the light shielding effect of the material is obviously improved, and the shielding effect is better when the content is more; however, for coating processing, most importantly, the uniformity and stability of processing are also a critical factor, and when the content of titanium dioxide powder is below 50%, the content of the glue in the coating layer is dominant, so that the uniformity and firmness of the coating processing can be ensured. The titanium dioxide powder content of the present invention is more preferably 15 to 40% by weight in view of the concealment of the nonwoven material of the present invention and the uniformity and fastness of the coating process. The coating method of the present invention is preferably a doctor blade coating method.
The viscosity average relative molecular weight of the polyester filaments constituting the polyester filament nonwoven fabric substrate layer is preferably 35000 to 45000. The viscosity-average relative molecular weight also determines the strength of the obtained fiber to a great extent, the relative molecular weight makes the polymer show different properties, only a melt with proper viscosity can spin the polyester filament with excellent strength, and the viscosity-average relative molecular weight plays an extremely important role in determining the melt spinning characteristic of the polymer and the mechanical property of the spun fiber, and can characterize the viscosity of the polymer melt and the relative molecular weight distribution to a certain extent. The viscosity flow of the polymer is greatly influenced by the viscosity-average molecular mass of the polymer, and the increase of the viscosity-average molecular mass can cause the sharp increase of apparent viscosity and the great reduction of melt index, so that the polymer cannot be normally spun or the spinning diameter cannot be controlled. If the viscosity-average molecular weight of the polyester filaments constituting the polyester filament nonwoven fabric substrate layer is too large, drawing during spinning becomes difficult, the spinning diameter becomes too large, the desired fine fineness cannot be achieved, the pores of the obtained material become large, and the water resistance becomes poor; if the viscosity-average molecular weight of the polyester filaments forming the polyester filament non-woven fabric substrate layer is too small, the fiber strength is reduced, and the strength of the prepared substrate is also reduced, so that the material has potential safety hazards of breakage during subsequent processing and construction use.
The diameter of the polyester filaments constituting the polyester filament nonwoven fabric substrate layer is preferably 5 to 20. Mu.m. The finer the diameter of the polyester filament yarn is, the smaller the aperture is, and the better the waterproof performance of the obtained base material is, but if the diameter of the polyester filament yarn is too thin, the draft ratio during spinning is greatly increased, the uniformity of the fiber is reduced, weak knots are generated, and the strength of the obtained base material is greatly reduced; on the other hand, although the improvement of the fiber diameter can improve the strength of the material and ensure the normal production and use of the material when the width is larger, if the diameter of the polyester filament yarn is too large, the pore diameter of the obtained base material becomes large, fine water drops easily pass through the material, so that the water resistance is affected, and meanwhile, if the diameter is too large, the bending rigidity of the fiber is also increased, the bending after the fiber reinforcement is easily restored, and the smoothness of the surface is deteriorated due to the concave-convex effect. The average diameter of the polyester filaments of the present invention is more preferably 12 to 18 μm in view of the water repellency, printability of the base material layer and securing the strength of the material.
The surface evenness of the polyester filament yarn non-woven fabric substrate layer is preferably 3-7 mu m. The surface flatness of the substrate layer is also critical, if the flatness of the polyester filament non-woven fabric substrate layer is too low, the film forming phenomenon of the surface is necessarily caused to a certain extent, the ventilation degree of the material is reduced, so that the problems of air bubbles and the like are easily generated during construction are caused, moreover, if the surface flatness of the substrate layer is too high, the surface of the obtained non-woven material for wall decoration is in a rough state after coating processing, if the flatness is improved through coating processing, the coating amount of the coating layer is increased, and the ventilation degree of the final non-woven material is reduced. The surface smoothness of the polyester filament nonwoven fabric substrate layer of the present invention is more preferably 4 to 6 μm in view of the smoothness and breathability of the final nonwoven material.
The coating amount of the coating layer is preferably 30 to 200g/m 2 . The invention preferably uses a doctor blade coating method to process the coating, if the coating amount of the coating layer is too low, uneven coating can be easily caused, uneven surface of the material can be caused, when the surface of the prepared material is uneven, the obtained nonwoven material is applied to wall decoration materials, the printability of the material is poor and the concealment is reduced due to uneven surface and uneven coating; if the coating amount of the coating layer is too high, it is easy to cause the surface of the base material layer to contain too much coating agent, the coating agent is too thick, the surface is dried but the inside is not completely dried, then when the inside is dried, gas is difficult to escape, and at this time, the dried part of the surface is foamed, so that the drying is uneven to cause foaming. In addition, when the prepared base material layer is coated with excessive paint, the obtained nonwoven material is applied to wall decoration materials, and the problem of foaming is easy to occur, so that the surface of the material is uneven, and the appearance is influenced; and too large coating amount can reduce the air permeability of the nonwoven material, which can cause the problems of no dissipation of water vapor in the wall surface, mold and the like. In view of the excellent water repellency of the nonwoven material for wall decoration of the present invention, the coating amount of the coating layer is preferably 40 to 100g/m 2 More preferably 45 to 70g/m 2 。
The gram weight of the nonwoven material for wall decoration is preferably 100-400 g/m 2 The thickness is preferably 0.15 to 0.30mm. The gram weight of the material is closely related to the strength and concealment of the material, when the gram weight of the material is low, the strength of the material is correspondingly reduced, when the gram weight is high, the air permeability of the material is reduced, the hardness of the material is also increased, and when the wall surface is adhered to the thick and difficult-to-spread material, the construction difficulty is very high. Therefore, the nonwoven material of the present invention is more preferably 120 to 300g/m in gram weight 2 Further preferably 150 to 200g/m 2 . The thickness variation range and gram weight of the material are consistent, and the nonwoven material has better surface evenness and relatively higher thickness compared with common textile fabric and spunlaced nonwoven materialThe nonwoven material of the present invention preferably has a thickness of 0.18 to 0.28mm, more preferably 0.20 to 0.25mm.
The strength of the nonwoven material for wall decoration of the present invention is preferably 50 to 500N/5cm. If the strength of the nonwoven material is too low, the nonwoven material is extremely easy to damage when being subjected to large-width wall surface pasting processing; if the strength of the nonwoven material is too high, the hardness, thickness and gram weight of the material are correspondingly increased, and if the pasting processing is carried out on a flat wall surface, the construction difficulty and the fastness requirements on glue are increased, and the strength of the nonwoven material for wall decoration is preferably 100-400N/5 cm.
The elongation of the nonwoven material for wall decoration of the present invention is preferably 2 to 20%. If the elongation of the nonwoven material is too low, the toughness and energy absorbing capacity of the material is also low, i.e., commonly known as "brittle" materials, which are very susceptible to breakage and breakage upon impact; if the elongation of the nonwoven material is too high, the material is correspondingly easy to deform, which can cause deformation of the printed pattern on the surface of the material in the processes of production, transportation, construction and use, no matter which engineering is stressed unevenly. Therefore, the elongation of the nonwoven material for wall decoration of the present invention is more preferably 5 to 18% in view of maintaining the toughness and the pattern of the material without deformation.
The nonwoven material for wall decoration has good waterproof property, can play a good role in protecting a wall surface, has the water pressure resistance of 50-500 mm water column, has poor waterproof property when the water pressure resistance of the nonwoven material is too low, and cannot play a sufficient role in protecting the wall surface; when the water pressure resistance of the nonwoven material is too high, the pore diameter of the material and the fineness of the fiber are correspondingly reduced, and the gram weight of the material is increased and the air permeability is reduced, so that the workability is affected. The nonwoven material for wall decoration of the present invention is more preferably 100 to 300mm water column in terms of the water repellency of the nonwoven material and the workability of the material.
The transparency of the nonwoven material for wall decoration reaches 92-100%, the better the transparency is, the better the effect of the material on covering stains on the original wall is, and the transparency of the nonwoven material is more preferably 95-100%.
The nonwoven material for wall decoration of the present invention may further comprise a printed working layer. The printed pattern may be selected according to market demand or user demand. The printing processing layer can be arranged on the coating surface layer or the substrate layer. The printing mode can adopt a direct printing mode such as screen printing, magnetic bar printing, digital ink-jet printing and the like, or an indirect printing mode such as transfer printing and the like.
The present invention is further illustrated by the following examples, but the scope of the present invention is not limited to the examples, and each physical property parameter in the examples is measured by the following method.
[ surface smoothness ]
The sample was subjected to humidity control under standard experimental conditions (20 ℃ x 65%), and then the flatness of the sample was measured using a MarSurf PS1 type flatness measuring instrument from marhr, taking 10 measurements at different places, taking the average of the 10 measurements as the measurement result of the surface flatness.
[ effective breadth ]
The whole cloth roll is cut into a sample with the length of 1m, the sample is subjected to humidity adjustment under standard experiment conditions (20 ℃ multiplied by 65%), and the effective width of the sample is measured by a tape measure under the condition of no tension.
[ filament diameter ]
And shooting a sample by adopting an SEM (scanning electron microscope), wherein the shooting magnification is 1000 times, randomly measuring the diameter of the polyester filament with stripes on the surface, and taking the average value of 30 measurement results, wherein the average value is the diameter of the polyester filament.
[ relative molecular mass of the viscous phases ]
Stripping the coating layer on the surface of the nonwoven material, and adopting an Ubbelohde viscometer to obtain a stripped sample, wherein the weight ratio is 1:1 and tetrachloroethane to obtain the intrinsic viscosity [ eta ] of the fiber. Since the intrinsic viscosity of the fiber has the following empirical relationship with molecular weight:
[η]＝KM a
wherein: intrinsic viscosity of [ eta ] -fiber; viscosity average molecular weight of the M-fiber;
in addition, a and K are constants, which vary with the solvent used and the temperature measured, and the test solvents of the present invention employ phenol: tetrachloroethane = 1:1 (weight ratio) having a K value of 2.1X10 at a temperature of 25 DEG C -4 The value of a is 0.86.
According to the above relation, the viscous relative molecular mass of the fiber is calculated.
[ substrate surface flatness ]
And (3) stripping the coating layer on the surface of the non-woven material, namely stripping the polyacrylate coating agent with the aid of tetrahydrofuran, measuring the flatness of the stripped sample by using a Marsurf PS1 type flatness measuring instrument of a Mark (Mahr) company, taking 10 measurements at different places, and taking the average value of the 10 measurements as the measurement result of the flatness of the surface of the substrate.
[ coating amount ]
The grammage of the whole nonwoven material is measured and is denoted as M1, then the coating layer on the surface of the substrate is peeled off, the peeled substrate is weighed, and the measured grammage is denoted as M2. The coating amount formula is as follows: coating amount (g/m) 2 ）=M1-M2。
[ gram weight ]
Sample size was taken: 200mm×200mm, sampling position: 3 samples are taken from the left, middle and right positions in the width direction of the sample, the weights of the 3 samples are respectively tested by an electronic balance after the laboratory is subjected to humidity adjustment for 24 hours at 20+/-2 ℃ multiplied by 65+/-4%, and the average value is calculated and used as the gram weight value of the sample.
[ thickness ]
Sample size was taken: 200mm×200mm, sampling position: 3 samples are taken from the left, middle and right positions in the width direction of the sample respectively, after the laboratory with the temperature of 20+/-2 ℃ multiplied by 65+/-4% is subjected to humidity adjustment for 24 hours, the thickness of the material is measured by using a TECLOCK SM-114 thickness gauge with the diameter of a measuring seed of 10mm and the measuring pressure of less than 2.5N, and the sampling test number N: n=9, test results: two bits after the decimal point.
[ Strong ] A method for producing a composite material
According to JIS T8124: the 2014 test method is used for measuring that the longitude and latitude sampling size is 50 multiplied by 300mm, the stretching speed is 200mm/min, the stretching clamp distance is 200mm, a stretching strength machine is used for stretching, the maximum stretching strength of the material is recorded, the longitudinal and transverse directions are respectively tested for 5 times, and the average value of 10 times of measurement is calculated and used as the strength value of the material.
[ elongation ]
According to JIS T8124: the 2014 test method is used for measuring the longitudinal and latitudinal sampling size of 50X 300mm, the stretching speed of 200mm/min and the stretching clamp distance of 200mm, a stretching strength machine is used for stretching, the elongation value of the material at the maximum stretching strength is recorded, the longitudinal and latitudinal testing is carried out for 5 times, and the average value of 10 times is calculated and used as the elongation value of the material.
[ Water pressure resistance ]
The water pressure resistance of the material was measured by the JIS L1092A method (low water pressure method), and the conditions of the measurement were as follows:
the device comprises: special equipment for water pressure test (TEXTEST FX 3000)
Speed of: 600mmwc/min
Sample size: 20 cm. Times.20 cm actual test area: 100cm 2
Measuring the number N: n=5
When 3 points of water permeability appear on the surface of the material, the water pressure resistance value at that time is recorded, and the average value of 5 times of measurement is calculated and is taken as the water pressure resistance value of the material.
[ Titania content ]
And stripping the coating layer of the non-woven material by adopting a physical and mechanical stripping mode, and then measuring the titanium dioxide content of the stripped coating layer by using a metal aluminum reduction method. After weighing a coating layer sample m, dissolving the coating layer sample m by adopting concentrated sulfuric acid and ammonium sulfate, reducing titanium (IV) into titanium (III) by adopting metallic aluminum under the action of carbon dioxide, titrating the reduced solution by adopting ammonium thiocyanate as an indicator and adopting an ammonium ferric sulfate standard titration solution, and finally measuring the content of titanium dioxide in terms of mass percent, wherein the calculation formula is as follows: tiO (titanium dioxide) 2 =100%×(0.0799×c×V 2 )/m，
Wherein: c is the actual concentration of the ammonium iron sulfate standard titration solution and mol/L;
V 2 the volume of standard titration solution of ammonium ferric sulfate consumed for titration, ml;
m is the mass of the sample, g;
0.0799 represents the equivalent mass of titanium dioxide in grams of 1.00ml of ferric ammonium sulphate standard titration solution.
[ anti-permeability ]
The whiteness of natural color is represented by L value, the numerical range of L value is between 0 and 100, when L value is 0, it represents full black, when L value is 100, it represents pure white, the larger the number, the larger the whiteness of the object tested.
Ｌ Whiteboard + nonwoven material : the pure white board is stuck to the non-woven material to be tested, and the whiteness of the pure white board is tested by a Datacolor tester from one side of the non-woven material to be tested;
Ｌ black board + nonwoven material : the pure blackboard is stuck with the non-woven material to be tested, and the whiteness of the pure blackboard is tested from one side of the non-woven material to be tested;
Ｌ white board : measuring whiteness of the pure white board independently;
Ｌ black board : whiteness of the pure black board was measured alone.
The better the barrier properties of the nonwoven material, the lower the light transmittance, L Whiteboard + nonwoven material And L is equal to Black board + nonwoven material The smaller the numerical difference of (c). According to the change of the L value, the anti-permeability of the nonwoven material is calculated, and the calculation formula is as follows:
barrier (%) =1- (L) Whiteboard + nonwoven material -L Black board + nonwoven material )/(L White board -L Black board )×100%。
[ printing Effect ]
And 4, printing the material, wherein the 4 people score the printing effect by 1-10, and the closer to the picture effect, the more true the grading is. Taking the average value of 4 persons as the final score of the printing effect evaluation, wherein the printing effect is excellent in 8-10 minutes; 5-7 minutes of printing effect is good; 3-6 minutes of printing effect is general; printing is difficult to be performed below 3 minutes.
[ construction ]
The environment-friendly cold glue or hot glue is adopted to carry out wall seamless adhesion on the material, and in the construction process, the construction difficulty is evaluated, and the evaluation method is as follows: preferably: the construction is free from wrinkling and swelling, light and easy to mount, and the construction is rapid; good: the problems of wrinkling, foaming and the like during construction are solved, but the problems of thick pasting and the like are solved by treatment, the operation of a plurality of people is needed, and the construction time is long; the difference is: the construction is extremely difficult, and the problems of wrinkling, foaming and the like cannot be completely removed.
Example 1
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.0m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is dried to finally prepare the wall decoration nonwoven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective breadth of 2.8m in the coating layer. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 2
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the breadthIs 3.0m and the gram weight is 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 3 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 1 mu m and the effective width of 2.8 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 3
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.0m and the gram weight of 90g/m 2 Using 7 μm surface evenness polyester filament spun-bonded non-woven fabric as base material, and coating one side of the base material with a coating amount of 60g/m by doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 10 mu m and the effective width of 2.8 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 4
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with a viscosity average relative molecular weight of 45000 and a diameter of 20 mu m, and adopting a width of 3.0m and a gram weight of 90g/m 2 Spun-bonded nonwoven fabric of polyester filaments with surface flatness of 5 μmIs a base material, and a layer of coating weight of 60g/m is coated on one side of the base material by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective width of 2.8 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 5
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 30000 and the diameter of 3 mu m, and adopting the width of 3.0m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective width of 2.8 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 6
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.0m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 180g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective width of 2.8 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 7
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.0m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 28g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective width of 2.8 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 8
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.2m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The coating agent of polyacrylate containing titanium dioxide powder is finally prepared into the dioxygen in the coating layerThe titanium oxide content is 8%, the surface flatness is 5 mu m, and the effective width is 3.0 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 9
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.2m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration non-woven material with the titanium dioxide content of 50%, the surface flatness of 5 mu m and the effective width of 3.0 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 10
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.3m and the gram weight of 90g/m 2 Using 7 μm surface evenness polyester filament spun-bonded non-woven fabric as base material, and respectively coating 30g/m on two sides of the base material by doctor blade method 2 The polyurethane coating agent containing titanium dioxide powder is printed with a printing layer on a coating layer by adopting a digital ink-jet method, and finally the polyurethane coating agent containing titanium dioxide powder is prepared, wherein the titanium dioxide content in the coating layer is 40%, the surface flatness is 7 mu m and the polyurethane coating agent is effectiveA nonwoven material for wall decoration with a width of 3.1m. The physical properties of the nonwoven material for wall decoration are shown in Table 1.
Example 11
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.3m and the gram weight of 50g/m 2 Using 7 μm surface evenness polyester filament spun-bonded non-woven fabric as base material, and coating one side of the base material with a coating amount of 60g/m by doctor blade coating method 2 The polyurethane coating agent containing titanium dioxide powder is printed with a printing layer on a coating layer by adopting a digital ink-jet method, and finally the wall decoration nonwoven material with the titanium dioxide content of 40%, the surface flatness of 7 mu m and the effective width of 3.1m in the coating layer is prepared. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 12
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.3m and the gram weight of 50g/m 2 Using 7 μm surface evenness polyester filament spun-bonded non-woven fabric as base material, and coating one side of the base material with a coating amount of 60g/m by doctor blade coating method 2 The titanium dioxide powder-containing polyvinyl chloride coating agent is finally prepared into a wall decoration nonwoven material with the titanium dioxide content of 40 percent, the surface flatness of 7 mu m and the effective width of 3.1m in the coating layerAnd (5) material. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Example 13
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 3.2m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration nonwoven material with the titanium dioxide content of 2 percent, the surface flatness of 5 mu m and the effective breadth of 3.0 m. The physical properties of the nonwoven material for wall decoration of the present invention are shown in table 1.
Comparative example 1
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming webs by taking high-speed air flow as a medium, finally carrying out hot melt reinforcement by an embossing roller to obtain a polyester filament spun-bond non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting a polyester filament with the breadth of 3.0m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 70 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is finally prepared into a wall decoration nonwoven material with the titanium dioxide content of 40 percent, the surface flatness of 50 mu m and the effective breadth of 2.8 m. The physical properties of the nonwoven material for wall decoration are shown in Table 2.
Comparative example 2
The wood pulp fiber and the polyester staple fiber with the fiber diameter of 15 μm are made into the wet nonwoven fabric by a wet papermaking process, and the maximum breadth of the wet nonwoven fabric can not exceed 1m due to low strength. Then the effective breadth is 0.55m, and the gram weight is 90g/m 2 The terylene wet papermaking non-woven fabric with the surface flatness of 5 mu m is taken as a base material, and one side of the base material is coated with a layer of coating weight of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is dried to finally prepare the non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective breadth of 0.5m in the coating layer. The physical properties of the nonwoven material are shown in Table 2.
Comparative example 3
Drying polyester polymer slices at 120 ℃, when the moisture content of the slices is lower than 0.01%, carrying out melt extrusion processing, spinning out by a spinning component, cooling and drawing the filaments by an air-flow drawing device, separating and forming the filaments into webs by taking high-speed air flow as a medium, carrying out hot melt reinforcement by a smooth surface roller matched with a steel roller and a rubber roller to obtain polyester filament spun-bonded non-woven fabric with the viscosity average relative molecular weight of 40000 and the diameter of 15 mu m, and adopting the width of 1.2m and the gram weight of 90g/m 2 Using polyester filament spun-bonded non-woven fabric with surface flatness of 5 μm as a base material, and coating one side of the base material with a coating amount of 60g/m by adopting a doctor blade coating method 2 The polyacrylate coating agent containing titanium dioxide powder is dried to finally prepare the non-woven material with the titanium dioxide content of 40 percent, the surface flatness of 5 mu m and the effective breadth of 1.0m in the coating layer. The physical properties of the nonwoven material are shown in Table 2.
TABLE 1
TABLE 2
。
From the above table, (1) it is clear that, under the same conditions, the smaller the surface flatness of the nonwoven material in example 2, the better the printing effect of the nonwoven material for wall decoration, but the film forming phenomenon occurs on the surface, the workability is moderate, and the surface flatness of the nonwoven material in example 1 is in the preferable range, and the obtained nonwoven material for wall decoration has good printing effect and excellent workability.
(2) As is clear from examples 1, 4 and 5, the polyester filaments constituting the polyester filament nonwoven fabric base layer in example 5 had a viscosity average relative molecular weight and a polyester filament diameter not within the preferred ranges under the same conditions, and the nonwoven fabric obtained in example 5 had a slightly lower strength due to a slightly lower molecular weight, and was moderate in workability.
(3) As is clear from examples 6 and 7, the coating amount of the coating layer in example 6 was in the preferable range under the same conditions, and the resultant nonwoven material was excellent in permeation resistance and printing effect as compared with the latter.
(4) As is clear from examples 8 and 9 and example 13, under the same conditions, the titanium dioxide content in the coating layer in example 13 was not within the preferred range, and the resulting nonwoven material was low in permeation resistance, i.e., moderate in hiding effect.
(5) As is clear from example 1 and comparative example 1, the nonwoven material of comparative example 1 had too high surface flatness, and the nonwoven material had lower water resistance, i.e., the material had poor water repellency, and had poor printing effect, as compared with the former.
(6) As is clear from example 1 and comparative example 2, under the same conditions, the base material layer in comparative example 2 was formed of a wet laid nonwoven fabric, and the obtained nonwoven material was low in strength, and was narrow in width, easy to break, poor in workability, unable to be applied without seams, and low in water resistance, i.e., poor in water resistance.
(7) As is clear from examples 1 and 3, under the same conditions, the nonwoven material of comparative example 3 has too small effective width, and the material cannot be adhered to the wall surface without any seam, which results in easy warping at the seam of the material and reduced service life.

Claims (7)

1. A nonwoven material for wall decoration, which is characterized in that: the material comprises a polyester filament non-woven fabric substrate layer and a coating layer on at least one side of the substrate layer, wherein the surface evenness of the material is 1-10 mu m, the effective breadth of the material is 2.8-3.1 m, the coating layer contains 5-50 wt% of titanium dioxide powder, and the coating amount of the coating layer is 30-200 g/m 2 The surface flatness of the polyester filament yarn non-woven fabric substrate layer is 3-7 mu m.
2. The wall-finishing nonwoven material according to claim 1, wherein: the viscosity average relative molecular weight of the polyester filaments forming the polyester filament non-woven fabric substrate layer is 35000-45000.
3. The wall-finishing nonwoven material according to claim 1 or 2, characterized in that: the diameter of the polyester filaments forming the polyester filament non-woven fabric substrate layer is 5-20 mu m.
4. The wall-finishing nonwoven material according to claim 1, wherein: the material comprises a printed layer.
5. The wall-finishing nonwoven material according to claim 1, wherein: the gram weight of the material is 100-400 g/m 2 The thickness is 0.15-0.30 mm.
6. The wall-finishing nonwoven material according to claim 1, wherein: the strength of the material is 50-500N/5 cm.
7. The wall-finishing nonwoven material according to claim 1, wherein: the elongation of the material is 2-20%.
CN202010160776.5A 2020-03-10 2020-03-10 Nonwoven material for wall decoration Active CN113373703B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004270081A (en) * 2003-03-10 2004-09-30 Toray Ind Inc Nonwoven fabric for wall decoration, and wall-decoration material
KR20050103376A (en) * 2004-04-26 2005-10-31 주식회사 코오롱 Polyester spunbonded non-woven fabric
JP2008142911A (en) * 2006-12-06 2008-06-26 Toray Ind Inc Nonwoven fabric for wall trim material and wall trim material
CN104141370A (en) * 2014-07-30 2014-11-12 湖州巧布师数码科技有限公司 Wide digitally-printed terylene wall cloth
CN104302478A (en) * 2013-03-14 2015-01-21 惠普发展公司，有限责任合伙企业 Wall covering
CN106758280A (en) * 2017-02-06 2017-05-31 浙江联翔家居装饰股份有限公司 PVC wide cuts are seamless wall cloth and its manufacture method
JP2019098603A (en) * 2017-11-30 2019-06-24 ダイニック株式会社 Wall covering material
TW201934206A (en) * 2018-02-05 2019-09-01 德商特薩股份有限公司 Structured rollers in the calendering and post-calendering process

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004270081A (en) * 2003-03-10 2004-09-30 Toray Ind Inc Nonwoven fabric for wall decoration, and wall-decoration material
KR20050103376A (en) * 2004-04-26 2005-10-31 주식회사 코오롱 Polyester spunbonded non-woven fabric
JP2008142911A (en) * 2006-12-06 2008-06-26 Toray Ind Inc Nonwoven fabric for wall trim material and wall trim material
CN104302478A (en) * 2013-03-14 2015-01-21 惠普发展公司，有限责任合伙企业 Wall covering
CN104141370A (en) * 2014-07-30 2014-11-12 湖州巧布师数码科技有限公司 Wide digitally-printed terylene wall cloth
CN106758280A (en) * 2017-02-06 2017-05-31 浙江联翔家居装饰股份有限公司 PVC wide cuts are seamless wall cloth and its manufacture method
JP2019098603A (en) * 2017-11-30 2019-06-24 ダイニック株式会社 Wall covering material
TW201934206A (en) * 2018-02-05 2019-09-01 德商特薩股份有限公司 Structured rollers in the calendering and post-calendering process

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