Wall cloth with aldehyde removing, peculiar smell removing and bacterium inhibiting functions and preparation method thereof
阅读说明：本技术 一种兼具除醛、除异味和抑菌功能的墙布及其制备方法 (Wall cloth with aldehyde removing, peculiar smell removing and bacterium inhibiting functions and preparation method thereof ) 是由 梁静静 罗祎玮 盛健 傅华康 于 2019-10-25 设计创作，主要内容包括：本发明公开了一种兼具除醛、除异味和抑菌功能的墙布及其制备工艺,墙布包括面层、复合纤维吸附层、纳米颗粒催化分解层、抑菌纤维层、点分布胶层。该墙布通过其表面形成的负离子除味层产生负离子,提高墙布的保健作用,去除室内异味,通过设有的复合纤维吸附层和纳米颗粒催化分解层,既能够降低墙布自身有害气体和异味的产生,又能够对外界有害气体和异味进行吸附、分解,通过设有的抑菌纤维层,能有效减少细菌的滋生,提高居住的安全性,该制备工艺是在现有的熔喷、涂刮和喷涂工艺的基础上进行调整,制作工艺先进,易于实施,产业化复制能力强。(The invention discloses wall cloth with aldehyde removing, peculiar smell removing and bacteriostatic functions and a preparation process thereof. This wall cloth removes the flavor layer through the anion that its surface formed and produces the anion, improve wall cloth's health care effect, get rid of indoor peculiar smell, through composite fiber adsorbed layer and the nanoparticle catalytic decomposition layer that is equipped with, can enough reduce the production of wall cloth self harmful gas and peculiar smell, can adsorb again to external harmful gas and peculiar smell, decompose, through the antibacterial fiber layer that is equipped with, can effectively reduce breeding of bacterium, improve the security of living, this preparation technology is that melt the present, scribble to scrape and adjust on the basis of spraying technology, advanced manufacturing process, easy to carry out, the industrialization replicateing ability reinforce.)
1. The utility model provides a have concurrently and remove aldehyde, remove peculiar smell and antibacterial function's wall cloth which characterized in that: including surface course, composite fiber adsorbed layer, nanoparticle catalytic decomposition layer, antibacterial fiber layer, point distribution glue film, the surface course surface forms anion through high-pressure atomization spraying multiple-effect smell removal agent and removes the flavor layer, the surface course with be equipped with site hot melt adhesive film layer between the composite fiber adsorbed layer, the fibre surface loading of composite fiber adsorbed layer has high-efficient adsorbed layer, the fibre surface loading of antibacterial fiber layer has the bacteriostat.
2. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 1, which is characterized in that: the surface layer is one of non-woven fabric, hot-rolled cloth, cotton and composite cloth; the multi-effect deodorant comprises the following components in parts by mass: 10-20 parts of anion powder, 10-20 parts of biological enzyme and 60-80 parts of deionized water.
3. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 2, which is characterized in that: the anion powder is one or more of diatomite, sepiolite and tourmaline powder; the biological enzyme is one or more of amino acid extract, polypeptide extract, protein extract, lactobacillus extract and lysozyme extract.
4. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 1, which is characterized in that: the composite fiber adsorption layer is one or more of glass fiber, polypropylene fiber, polyethylene fiber, polyester fiber, bamboo charcoal fiber and active carbon fiber; the efficient adsorption layer is a composition of porous nano-particles, and the composition of the porous nano-particles is one or more of zeolite, molecular sieve, diatomite, montmorillonite, chitin, nano silicon wafer, sepiolite, attapulgite and activated carbon; the mass ratio of the composition of the porous nano particles in the composite fiber adsorption layer is 2-10%.
5. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 1, which is characterized in that: the nano-particle catalytic decomposition layer is an emulsion of nano-catalytic particles and comprises the following components in parts by mass: 20-40 parts of nano catalytic particles and 60-80 parts of film forming agent; the nano catalytic particles are one or more of nano zinc oxide, nano titanium dioxide, nano manganese dioxide, nano iron oxide or metal nano particle loaded nano iron oxide; the film forming agent is one of acrylic resin, epoxy resin and polyurethane resin.
6. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 5, which is characterized in that: the metal nano-particles are one or more of Pt, Pd, Ag, Ru and Au.
7. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 1, which is characterized in that: the antibacterial fiber layer is one or more of glass fiber, polypropylene fiber, polyethylene fiber, polyester fiber, bamboo charcoal fiber and activated carbon fiber; the bacteriostatic agent is one or more of nano silver, nano copper, nano zinc, nano titanium dioxide, nano zinc oxide, nano manganese dioxide and nano aluminum oxide bacteriostatic agent, and the mass percentage of the bacteriostatic agent in the bacteriostatic fiber layer is 2-10%.
8. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 1, which is characterized in that: the point distribution adhesive layer is a hot melt adhesive layer distributed in a point shape and comprises the following components in parts by mass: 30-70 parts of plant gum and 30-70 parts of PA gum.
9. The wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in claim 1, which is characterized in that: the mesh point hot melt adhesive film layer is one or a mixture of polypropylene, polyethylene and polyester, the aperture ratio of the mesh point hot melt adhesive film layer is 10-60%, and the length of meshes is 10-20 mm.
10. A method for preparing the wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria as claimed in any one of claims 1 to 9, which comprises the following steps:
1) the surface layer non-woven fabric is sprayed with a multi-effect deodorant through high-pressure atomization, an anion deodorant layer is formed on the surface, then the surface layer non-woven fabric is tiled on a crawler belt, and a dot hot melt adhesive film layer is laid above the crawler belt;
2) mixing the porous nano-particle composition with polymer slices according to the mass percentage of 2-10%, mixing, extruding and melt-blowing by melt-blowing non-woven forming equipment, rapidly stretching and solidifying the just extruded glue material melt into filaments by high-speed hot air flow at the outlet of an extruder, and flatly laying the spun filaments on the surface of the dot hot-melt adhesive film layer by using a filament swinging and forming machine to form a composite fiber adsorption layer;
3) adding the nano catalytic particles and the film forming agent into a stirrer according to the mass ratio of 30:70, stirring for 15-30 minutes to form emulsion of the nano catalytic particles, and scraping the surface of the composite fiber adsorption layer by adopting a direct dry coating method to form a nano particle catalytic decomposition layer with the gram weight of 20-150 g/m 2;
4) mixing a bacteriostatic agent with polymer slices according to the mass percentage of 2-10%, mixing, extruding and melt-blowing by melt-blowing non-woven forming equipment, rapidly stretching and solidifying the just extruded glue material melt into filaments by high-speed hot air flow at an outlet of an extruder, and flatly laying the spun filaments into a net on the surface of the nanoparticle catalytic decomposition layer by using a swing-wire net forming machine to form a bacteriostatic fiber layer;
5) rolling under 0.5-10MPa at 50-120 deg.C for 30-120s, and naturally cooling;
6) and (3) coating a hot melt adhesive on the surface of the antibacterial fiber layer by adopting a spot coating mode, spraying the vegetable adhesive, and spraying the PA adhesive powder on the vegetable adhesive to prepare the wall cloth for final pasting.
Technical Field
The invention belongs to the technical field of decorative materials, and particularly relates to wall cloth with aldehyde removal, peculiar smell removal and bacteriostatic functions and a preparation method thereof.
Background
With the continuous improvement of the quality of life of people, the problem of indoor air quality gradually becomes the key point of attention of people. In daily life, the average inhalation is 12m per day3The air of (2) and people spend more than 80% of the time indoors on average every day, however, the house after being decorated often has many poisonous and harmful gases, mainly including five items: benzene, toluene, xylene, formaldehyde, TVOC (total volatile organic compounds), which are the five toxic carcinogenic substances widely existing in common home materials or home finished products, such as adhesive components in wallpaper, wall cloth, furniture, paint, etc. The long-time contact of the low-concentration multi-component pollutants can cause great damage to the skin, the respiratory system and the cardiovascular system of people, particularly formaldehyde, the main harm of the formaldehyde is the stimulation effect on skin mucosa, when the formaldehyde reaches a certain concentration indoors, people feel uncomfortable, and the formaldehyde with higher concentration can cause various diseases and even cause cancers.
In recent years, people are keen to adopt wall cloth and wallpaper to replace emulsion paint materials to beautify and decorate wall surfaces. In the past, people paint the wall surface to ensure that the wall surface is clean and beautiful, but the paint contains a large amount of substances harmful to human bodies, and in addition, the project of painting the wall surface is complicated, and the wall surface is not resistant to dirt and is not easy to repair after the dirt is removed. In order to solve the problems, wallpaper is more and more popular and is popular with people, however, a large amount of pollution can be generated in the wallpaper manufacturing process, a large amount of glue is needed when the wallpaper is pasted, meanwhile, the indoor environment is polluted, and in humid weather, the wallpaper is easy to fall off, mildew and deform after moisture absorption, and the attractiveness of the wall surface is damaged. Subsequently, people begin to use fabrics to decorate the wall surface, the wall cloth is often used as a material for decorating the indoor wall, the wall cloth is bright in color, rich in patterns and textured, and the environmental protection performance and the moisture resistance performance of the wall cloth are better than those of wallpaper. However, the wall covering needs glue during construction, which is easily affected with damp and mildewed, and in addition, the rapid development of the market also leads to the good and uneven quality of some home decoration materials, and the inferior materials can release a large amount of toxic substances such as formaldehyde, TVOC, benzene series, ammonia, radon and the like continuously, and most of the substances are confirmed to be carcinogenic substances and mutagenic substances, which are harmful to human bodies.
Disclosure of Invention
The invention aims to provide a wall cloth with aldehyde removal, peculiar smell removal and antibacterial functions and a technical scheme of a preparation method thereof, aiming at the defects in the prior art, the wall cloth can generate negative ions through a negative ion smell removal layer formed on the surface of the wall cloth, improve the health care effect of the wall cloth and remove indoor peculiar smell, can reduce the generation of harmful gas and peculiar smell of the wall cloth and adsorb and decompose the external harmful gas and peculiar smell through a composite fiber adsorption layer and a nanoparticle catalytic decomposition layer, can effectively reduce the breeding of bacteria and improve the safety of living through the antibacterial fiber layer, and is adjusted on the basis of the existing wet impregnation, melt-blowing and spraying processes, the preparation process is advanced, the implementation is easy, and the industrial reproduction capability is strong.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a have concurrently and remove aldehyde, remove peculiar smell and antibacterial function's wall cloth which characterized in that: including surface course, composite fiber adsorbed layer, nano-particle catalytic decomposition layer, antibacterial fibrous layer, point distribution glue film, the surface course surface forms anion through high-pressure atomizing spraying multiple-effect smell removal agent and removes the flavor layer, is equipped with site hot melt adhesive film layer between surface course and the composite fiber adsorbed layer, and the fibre surface load of composite fiber adsorbed layer has high-efficient adsorbed layer, and the fibre surface load of antibacterial fibrous layer has the bacteriostat.
Further, the surface layer is one of non-woven fabric, hot-rolled fabric, cotton and composite fabric, preferably non-woven fabric. The gram weight of the surface layer is 20-60 g/m2Preferably, the grammage is 35g/m2. The multi-effect deodorant comprises the following components in parts by mass: 10-20 parts of anion powder, 10-20 parts of biological enzyme and 60-80 parts of deionized water, wherein the anion powder is selected from the following components: biological enzyme: deionized water is 10:15:75, and the gram weight of the multi-effect deodorant is 10-50g/m2Preferably, the grammage is 20g/m2。
Further, the anion powder is one or more of diatomite, sepiolite and tourmaline powder, and tourmaline powder is preferred. The biological enzyme is one or more of amino acid extract, polypeptide extract, protein extract, lactobacillus extract, and lysozyme extract, preferably polypeptide extract.
Further, the composite fiber adsorption layer is one or more of glass fiber, polypropylene fiber, polyethylene fiber, polyester fiber, bamboo charcoal fiber and activated carbon fiber, and polypropylene fiber is preferred. The gram weight of the composite fiber adsorption layer is 20-100 g/m2Preferably, the grammage is 30g/m2. The efficient adsorption layer is a composition of porous nano-particles, the composition of the porous nano-particles is one or more of zeolite, molecular sieve, diatomite, montmorillonite, chitin, nano silicon wafer, sepiolite, attapulgite and activated carbon, and preferably 70% by mass of coconut shell activated carbon subjected to surface chemical modification treatment and having an iodine adsorption value of more than 1300mg/g and 30% by mass of diatomite. The mass ratio of the composition of the porous nanoparticles in the composite fiber adsorption layer is 2-10%, preferably 4%.
Further, the nano-particle catalytic decomposition layer is an emulsion of nano-catalytic particles, comprisingThe composition comprises the following components in parts by mass: 20-40 parts of nano catalytic particles and 60-80 parts of a film forming agent, wherein the nano catalytic particles are specifically one or more of nano zinc oxide, nano titanium dioxide, nano manganese dioxide, nano iron oxide or metal nano particle loaded nano iron oxide; the film forming agent is one of acrylic resin, epoxy resin and polyurethane resin, preferably aqueous acrylic resin, preferably nano catalytic particles: the mass ratio of the film forming agent to the nano-particle catalytic decomposition layer is 30:70, and the gram weight of the nano-particle catalytic decomposition layer is 20-150 g/m2Preferably, the grammage is 40g/m2。
Further, the metal nano-particles are one or more of Pt, Pd, Ag, Ru and Au, and Pd-supported nano-iron oxide is preferred, wherein the mass ratio of Pd is 0.01-1%, and 0.5% is preferred.
Further, the bacteriostatic fiber layer is one or more of glass fiber, polypropylene fiber, polyethylene fiber, polyester fiber, bamboo charcoal fiber and activated carbon fiber, preferably polyester fiber. The gram weight of the antibacterial fiber layer is 40-150 g/m2Preferably, the grammage is 60g/m2. The bacteriostatic agent is one or more of nano silver, nano copper, nano zinc, nano titanium dioxide, nano zinc oxide, nano manganese dioxide and nano aluminum oxide bacteriostatic agent, and preferably nano zinc oxide. The mass percentage of the bacteriostatic agent in the bacteriostatic fiber layer is 2-10%, preferably 4%.
Further, the point distribution adhesive layer is a hot melt adhesive layer distributed in a point shape, and comprises the following components in parts by mass: 30-70 parts of vegetable gum and 30-70 parts of PA gum, preferably vegetable gum: the mass ratio of the PA glue is 40:60, and the gram weight of the point distribution glue layer is 20-100 g/m2Preferably, the grammage is 40g/m2。
Further, the mesh point hot melt adhesive film layer is one or a mixture of polypropylene, polyethylene and polyester, preferably a graft modified polypropylene mesh point hot melt adhesive film, and the gram weight is 20-60 g/m2Preferably, the grammage is 30g/m2. The aperture ratio of the dot hot melt adhesive film layer is 10-60%, the length of the mesh is 10-20 mm, and the shape of the mesh is circular, rhombic or slit-shaped.
The method for preparing the wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria is characterized by comprising the following steps:
1) the surface layer non-woven fabric is sprayed with a multi-effect deodorant through high-pressure atomization, an anion deodorant layer is formed on the surface, then the surface layer non-woven fabric is tiled on a crawler belt, and a dot hot melt adhesive film layer is laid above the crawler belt;
2) mixing the porous nano-particle composition with polymer slices according to the mass percentage of 2-10%, mixing, extruding and melt-blowing by melt-blowing non-woven forming equipment, rapidly stretching and solidifying the just extruded glue material melt into filaments by high-speed hot air flow at the outlet of an extruder, and flatly laying the spun filaments on the surface of the dot hot-melt adhesive film layer by using a filament swinging and forming machine to form a composite fiber adsorption layer;
3) adding the nano catalytic particles and the film forming agent into a stirrer according to the mass ratio of 30:70, stirring for 15-30 minutes to form emulsion of the nano catalytic particles, and coating and scraping the surface of the composite fiber adsorption layer by adopting a direct dry coating method to form the nano catalytic particle with the gram weight of 20-150 g/m2A nanoparticle catalytic decomposition layer;
4) mixing a bacteriostatic agent with polymer slices according to the mass percentage of 2-10%, mixing, extruding and melt-blowing by melt-blowing non-woven forming equipment, rapidly stretching and solidifying the just extruded glue material melt into filaments by high-speed hot air flow at an outlet of an extruder, and flatly laying the spun filaments into a net on the surface of the nanoparticle catalytic decomposition layer by using a swing-wire net forming machine to form a bacteriostatic fiber layer;
5) rolling under 0.5-10MPa at 50-120 deg.C for 30-120s, and naturally cooling;
6) and (3) coating a hot melt adhesive on the surface of the antibacterial fiber layer by adopting a spot coating mode, spraying the vegetable adhesive, and spraying the PA adhesive powder on the vegetable adhesive to prepare the wall cloth for final pasting. The wall surface only needs simple processing during installation, can paste the wall paper through simple pressfitting, the construction of being convenient for, safety ring protects.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. multiple-effect deodorant is sprayed on the surface of the wall cloth through high-pressure atomization to form an anion deodorant layer, anions are generated, the health-care effect of the wall cloth is improved, and the wall cloth is beneficial to human health. In addition, biological enzyme with light aromatic smell is added into the multi-effect deodorant, so that indoor peculiar smell is effectively removed, and the deodorant is healthy and comfortable.
2. The mesh hot melt adhesive film is adopted between the surface layer and the composite fiber adsorption layer, so that the mesh has good air permeability, strong bonding force, no toxicity and no peculiar smell.
3. The fiber surface of the composite fiber adsorption layer is loaded with the efficient adsorption layer, so that the generation of harmful gas and peculiar smell substances of the wall cloth can be reduced, and the external harmful gas and the peculiar smell substances can be efficiently adsorbed. The coconut shell activated carbon has high specific surface area and high porosity, takes micropores as main materials, forms hydroxyl groups on the surface of the coconut shell activated carbon after surface chemical modification, can firmly adsorb formaldehyde, acetaldehyde, benzene and other harmful gases, and the diatomite is a porous adsorption material taking mesopores as main materials, and the diatomite and the mesoporous adsorption material are combined to complement each other so as to carry out efficient and firm adsorption on harmful gases and peculiar smell substances with different molecular sizes and realize the removal of the formaldehyde, the benzene, the TVOC and other harmful gases and the peculiar smell substances.
4. Through the nano-particle catalytic decomposition layer that sets up, can degrade the harmful chemical substance in the room air, especially have stronger catalytic decomposition ability to harmful substance such as formaldehyde, benzene, TVOC. The nano catalytic particles are Pd supported nano iron oxide particles, formaldehyde can be completely oxidized at room temperature, and harmful gases such as formaldehyde, acetaldehyde and benzene can be rapidly captured and decomposed into harmless carbon dioxide and water without the help of the action of light. The surface of the fiber of the bacteriostatic fiber layer is loaded with the bacteriostatic agent, thereby inhibiting the breeding of bacteria, having excellent environmental protection performance and being beneficial to the safety of living.
5. The preparation process of the wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria is adjusted on the basis of the existing blade coating, melt-blowing and spraying processes, and has the advantages of advanced preparation process, easy implementation and strong industrialized replication capacity.
Description of the drawings:
the invention will be further described with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of the wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria and the preparation method thereof.
In the figure: 1-surface layer; 2-dot hot melt adhesive film layer; 3-a composite fiber adsorption layer; 4-a nanoparticle catalytic decomposition layer; 5-bacteriostatic fiber layer; 6-point distribution of a glue layer; 7-mesh; 8-high efficiency adsorption layer; 9-nano catalytic particles; 10-vegetable gum; 11-PA glue.
Detailed Description
As shown in fig. 1, the wall cloth of the present invention has the functions of removing aldehyde, removing odor and inhibiting bacteria, and the structure of the wall cloth sequentially comprises a surface layer 1, a dot hot melt adhesive film layer 2, a composite fiber adsorption layer 3, a nanoparticle catalytic decomposition layer 4, an inhibiting fiber layer 5 and a dot distribution adhesive layer 6 from bottom to top.
The surface layer 1 is one of non-woven fabric, hot-rolled fabric, cotton and composite fabric, preferably non-woven fabric. The gram weight of the surface layer 1 is 20-60 g/m2Preferably, the grammage is 35g/m2. The surface of the surface layer 1 is sprayed with a multi-effect deodorant through high-pressure atomization to form a negative ion deodorant layer, wherein the multi-effect deodorant comprises the following components in parts by mass: 10-20 parts of anion powder, 10-20 parts of biological enzyme and 60-80 parts of deionized water, wherein the anion powder is selected from the following components: biological enzyme: the deionized water is 10:15: 75. The gram weight of the multi-effect deodorant is 10-50g/m2Preferably, the grammage is 20g/m2. The anion powder is one of diatomite, sepiolite and tourmaline powder, preferably tourmaline powder. The biological enzyme is one or more of amino acid extract, polypeptide extract, protein extract, lactobacillus extract, and lysozyme extract, preferably polypeptide extract.
The dot hot melt adhesive film layer 2 is one or a mixture of polypropylene, polyethylene and polyester, preferably a graft modified polypropylene dot hot melt adhesive film, and the gram weight is 20-60 g/m2Preferably, the grammage is 30g/m2. The aperture ratio of the dot hot melt adhesive film layer is 10-60%, the length of the mesh 7 is 10-20 mm, and the shape of the mesh 7 is circular, rhombic or slit-shaped.
The composite fiber adsorption layer 3 is one or more of glass fiber, polypropylene fiber, polyethylene fiber, polyester fiber, bamboo charcoal fiber and active carbon fiber, preferably polypropylene fiber. The gram weight of the composite fiber adsorption layer 3 is 20-100 g/m2Preferably gramThe weight is 30g/m2. The high-efficiency adsorption layer 8 is a composition of porous nano particles, specifically is one or more of zeolite, molecular sieve, diatomite, montmorillonite, chitin, nano silicon wafer, sepiolite, attapulgite and activated carbon, and is preferably a mixture of 70% by mass of coconut shell activated carbon subjected to surface chemical modification treatment and having an iodine adsorption value of more than 1300mg/g and 30% by mass of diatomite. The mass percentage of the composition of the porous nanoparticles in the composite fiber adsorption layer 3 is 2 to 10%, preferably 4%.
The nano-particle catalytic decomposition layer 4 is an emulsion of nano-catalytic particles 9 and comprises the following components in parts by mass: 20-40 parts of nano catalytic particles 9 and 60-80 parts of a film forming agent, wherein the nano catalytic particles are one or more of nano zinc oxide, nano titanium dioxide, nano manganese dioxide, nano iron oxide or metal nano particle loaded nano iron oxide; the metal nano particles are one or more of Pt, Pd, Ag, Ru and Au, and are preferably Pd-supported nano iron oxide, wherein the mass ratio of Pd is 0.01-1%, and is preferably 0.5%; the film forming agent is one of acrylic resin, epoxy resin and polyurethane resin, preferably aqueous acrylic resin, preferably nano catalytic particles: the film forming agent is 30:70, and the gram weight of the nano-particle catalytic decomposition layer 4 is 20-150 g/m2Preferably, the grammage is 40g/m2。
The bacteriostatic fiber layer 5 is one or more of glass fiber, polypropylene fiber, polyethylene fiber, polyester fiber, bamboo charcoal fiber and active carbon fiber, preferably polyester fiber. The gram weight of the bacteriostatic fiber layer 5 is 40-150 g/m2Preferably, the grammage is 60g/m2. The bacteriostatic agent is one or more of nano silver, nano copper, nano zinc, nano titanium dioxide, nano zinc oxide, nano manganese dioxide and nano aluminum oxide bacteriostatic agent, and preferably nano zinc oxide. The mass ratio of the bacteriostatic agent in the bacteriostatic fiber layer 5 is 2-10%, preferably 4%.
The point distribution adhesive layer 6 is a hot melt adhesive layer distributed in a point shape and comprises the following components in parts by mass: 30-70 parts of vegetable gum 10 and 30-70 parts of PA gum 11, preferably 10: the PA glue 11 is 40:60, and the gram weight of the point distribution glue layer 6 is 20-100 g/m2Preferably, the grammage is 40g/m2。
The method for preparing the wall cloth with the functions of removing aldehyde, removing peculiar smell and inhibiting bacteria comprises the following steps:
1) the non-woven fabric of the surface layer 1 is sprayed with a multi-effect deodorant through high-pressure atomization, an anion deodorant layer is formed on the surface, then the surface is tiled on a crawler belt, and a dot hot melt adhesive film layer 2 is laid above the crawler belt;
2) mixing the porous nano-particle composition with polymer slices according to the mass percentage of 2-10%, mixing, extruding and melt-blowing by melt-blowing non-woven forming equipment, rapidly stretching and solidifying the just extruded glue material melt into filaments by high-speed hot air flow at the outlet of an extruder, and flatly laying the spun filaments on the surface of the dot hot-melt glue film layer 2 by using a filament swinging and forming machine to form a composite fiber adsorption layer 3;
3) adding the nano catalytic particles 9 and the film forming agent into a stirrer according to the mass ratio of 30:70, stirring for 15-30 minutes to form emulsion of the nano catalytic particles 9, and coating and scraping the surface of the composite fiber adsorption layer 3 by adopting a direct dry coating method to form the composite fiber adsorption layer with the gram weight of 20-150 g/m2A nanoparticle catalytic decomposition layer 4;
4) mixing a bacteriostatic agent with polymer slices according to the mass percentage of 2-10%, mixing, extruding and melt-blowing by melt-blowing non-woven forming equipment, rapidly stretching and solidifying the just extruded glue material melt into filaments by high-speed hot air flow at an outlet of an extruder, and flatly laying the spun filaments on the surface of the nanoparticle catalytic decomposition layer 4 by using a filament swinging and forming machine to form a bacteriostatic fiber layer 5;
5) rolling under 0.5-5MPa at 50-120 deg.C for 30-120s, and naturally cooling;
6) the surface of the bacteriostatic fiber layer 5 is coated with hot melt adhesive by a spot coating method, the plant glue 10 is firstly sprayed, and then the PA glue 11 powder is sprayed on the plant glue 10.
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