WO2023232098A1 - 一种超薄超透的微孔膜的制备方法 - Google Patents

一种超薄超透的微孔膜的制备方法 Download PDF

Info

Publication number
WO2023232098A1
WO2023232098A1 PCT/CN2023/097669 CN2023097669W WO2023232098A1 WO 2023232098 A1 WO2023232098 A1 WO 2023232098A1 CN 2023097669 W CN2023097669 W CN 2023097669W WO 2023232098 A1 WO2023232098 A1 WO 2023232098A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultra
water
micro
coating
thin
Prior art date
Application number
PCT/CN2023/097669
Other languages
English (en)
French (fr)
Inventor
汪明星
沈红霞
陈玉林
Original Assignee
吴江市汉塔纺织整理有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 吴江市汉塔纺织整理有限公司 filed Critical 吴江市汉塔纺织整理有限公司
Publication of WO2023232098A1 publication Critical patent/WO2023232098A1/zh

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • 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
    • D06N3/0004—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 ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
    • 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
    • D06N3/0006—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 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
    • D06N3/0056—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
    • D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/02—Properties of the materials having acoustical properties
    • D06N2209/025—Insulating, sound absorber
    • 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
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/121—Permeability to gases, adsorption
    • 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
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/126—Permeability to liquids, absorption
    • D06N2209/128—Non-permeable
    • 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
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1635—Elasticity
    • 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
    • D06N2211/10—Clothing

Definitions

  • the invention belongs to the technical field of textile finishing coating and relates to a method for preparing an ultra-thin and ultra-transparent microporous film.
  • Down jackets, duvets, and many outdoor textiles are popular among people because of their good thermal insulation properties.
  • down fillings such as duck down, goose down, and hollow chemical fibers will move out of the fabric through the needle holes, causing the phenomenon of velvet drilling, which affects the quality of the fabric.
  • Wear effect. The existing technology often improves the anti-down drill effect of fabrics through coating.
  • the coating refers to applying a layer of anti-down glue or PU glue on the surface of the fabric to block the pores between fibers and prevent down drill. It turns out that although the coating can improve the anti-downing effect of the fabric, it will lead to a decrease in the breathability of the fabric. On the one hand, it will affect the comfort.
  • the coating in the existing technology usually adopts direct coating method, and the thickness of the coating is relatively large, which will not only affect the breathability of the fabric, but also cause the clothing to have a strong sense of weight.
  • Micro-nano foaming machines and micro-nano foaming coating technology have been widely used in the coating industry, setting off an environmentally friendly technological revolution in foam coating.
  • Micro-nano foaming machines can produce micro-nano aerosol bubbles under certain conditions.
  • Micro-nano aerosol bubbles refer to bubbles with a diameter ranging from about 10 microns to hundreds of nanometers when bubbles occur. This kind of bubble is between micron bubbles and nano-bubbles, and has physical and chemical properties that conventional glue does not have. .
  • the micro-nano foaming technology of water-based glue is an emerging environmentally friendly foam coating technology in recent years.
  • the purpose of the present invention is to solve the problems existing in the prior art and provide a method for preparing an ultra-thin and ultra-transparent microporous membrane.
  • a method for preparing ultra-thin and ultra-transparent microporous membranes A micro-nano foaming machine is used to foam water-based foam glue to obtain bubbles, and then micro-concave high-precision coating is performed (the current method of ultra-thin coating is relatively stable:
  • the micro-concave high-precision coating method is a high-precision coating method that controls the thickness by accurately calculating the amount of liquid in the micro-concave holes and transferring it to the cloth surface) to obtain an ultra-thin and ultra-transparent microporous film;
  • water-based foam glue includes 100 parts of water-based glue (such as PU, PE, PP, PET and other polymer materials), 0 to 15 parts of functional additives, and 0.1 to 5 parts of water-based foaming agent.
  • water-based glue such as PU, PE, PP, PET and other polymer materials
  • functional additives such as PU, PE, PP, PET and other polymer materials
  • 0.1 to 5 parts of water-based foaming agent 0.1 ⁇ 5 parts of silicone polyether emulsion (MPS) water-based foam stabilizer and n parts of water (the number of water depends on the parts of other components (number and viscosity of the mixture of water-based glue, functional additives and water), the viscosity of the mixture of water-based glue, functional additives and water is 500CPS;
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 350 ⁇ 700g/L, mixing head working speed 250 ⁇ 400 rpm, pump output 100 ⁇ 500L/hour;
  • the diameter of the bubble (the diameter of the bubble in the present invention is the outer diameter of the bubble) is below 5 ⁇ m;
  • the thickness of the coating is less than 5 ⁇ m and is greater than or equal to the diameter of the bubble;
  • Ultra-thin and ultra-transparent microporous membrane is a membrane containing micropores.
  • the thickness of the membrane is less than 5 ⁇ m, and the pore size of the micropores is less than 5 ⁇ m.
  • a micro-nano foaming machine is used to foam water-based foam rubber, and the diameter of the bubbles obtained is often above 10 ⁇ m, and it is difficult to reach below 10 ⁇ m.
  • a micro-nano foaming machine is used to foam the water-based foam rubber.
  • the diameter of the bubbles obtained by the treatment can reach less than 5 ⁇ m.
  • the present invention reasonably sets the foaming control parameters of the micro-nano foaming machine, in which the specific gravity of the bubbles is 350 ⁇ 700 g/L, the working speed of the mixing head is 250 ⁇ 400 rpm, and the output of the pump is 100 ⁇ 500L/ hour; the specific gravity of the bubble is the ratio of gas and liquid. If the specific gravity of the bubble is small, the diameter of the bubble will be small. If the specific gravity of the bubble is small, the diameter of the bubble will be large. If the working speed of the stirring head is high, the amount of foam will be large. If the working speed of the stirring head is high, the amount of foam will be small. Pump The output volume depends on the coating requirements. The output volume of the pump required for different water-based adhesives is different. If a pre-production sample is to be made before production, a foaming debugging parameter test must be carried out to scrape a small sample for electron microscopy analysis. It must be below 5 ⁇ m. Can produce large quantities of goods;
  • water-based foaming agent is added to the water-based foaming glue.
  • the water-based foaming agent can narrow the foaming pore size range.
  • the dosage of the water-based foaming agent is appropriate. If the dosage is too large, although the diameter of the bubbles is small, it will affect the formation of the foam. hole, if the dosage is too small, the diameter of the bubble will be larger;
  • silicone polyether emulsion water-based foam stabilizer is added to the water-based foam rubber.
  • the silicone polyether emulsion water-based foam stabilizer can control the structural stability of the bubble liquid film and make the surfactant molecules in the bubbles. The orderly distribution of the liquid film gives the bubbles good elasticity and self-healing ability.
  • the silicone polyether emulsion water-based foam stabilizer has obvious foam stabilizing effect and is easy to use. It can extend the existence time of small bubbles and reduce the fusion of small bubbles into large ones. The occurrence of bubbles keeps the diameter of the bubbles at the micro-nano level.
  • the thickness of the coating is greater than the diameter of the bubbles.
  • the diameter of the bubbles is often above 10 ⁇ m, it can only be used for simple thick coating (such as 25 ⁇ 50 ⁇ m doctor blade coating), and cannot be used for micro-dimple coating.
  • High-precision coating is used to prepare ultra-thin microporous membranes with a thickness of less than 5 ⁇ m.
  • the diameter of bubbles is less than 5 ⁇ m
  • ultra-thin microporous membranes with a thickness of less than 5 ⁇ m can be prepared by micro-concave high-precision coating.
  • Existing coatings usually use direct coating. Not only is the thickness of the coating large, but the anti-velvet glue or PU glue will also directly penetrate into the yarn fibers of the cloth, causing the fabric to harden and cause a squeaking sound when shaking. Noise;
  • the coating of the present invention adopts a micro-concave high-precision coating method. Not only is the thickness of the coating thin, but the water-based glue will not excessively penetrate into the yarn fibers of the cloth, so the fabric is soft and comfortable, and the mute effect is better.
  • the thickness of the membrane is 0.5 ⁇ 5 ⁇ m, and the pore size of the micropores is 0.1 ⁇ 5 ⁇ m;
  • the air permeability of the membrane is in accordance with GB/T 5453 "Breathability of Textile Fabrics" Test” standard test conforms to national standards.
  • the anti-drilling properties of the membrane are tested in accordance with GB/T14272-2011 "Down Clothing” standard.
  • the membrane has excellent mute effect and no sound from friction; the length of natural fibers such as cotton and wool It is about 1,000 to 3,000 times its diameter. The length of cotton fiber is 1 ⁇ 5 cm and the diameter is about 20 ⁇ m.
  • Silk is the finest natural fiber with a cross-sectional diameter of about 10 ⁇ m.
  • the fineness range of cashmere fiber is very narrow (13 ⁇ 19 ⁇ m), and down fibers with a fineness of 14 ⁇ m or less, and the length is basically no more than 30mm.
  • the diameter of down is high in air content and low in breathability in down jackets. Down is generally made from duck or goose breast feathers, and the average diameter of down’s hair fibers is greater than 5 ⁇ m. , so the micropores of the present invention with a pore diameter below 5 ⁇ m can have good anti-lint properties.
  • the micro-concave high-precision coating uses a high-precision micro-concave coating that forms a uniform film when the coating thickness is 1 ⁇ 5 ⁇ m and the film surface is uniform without blind spots in the coating film. cloth machine.
  • the method for preparing an ultra-thin and ultra-transparent microporous film is the base cloth or base film.
  • the cloth is called “base.”
  • base film if you want to apply a film on a base film with a peeling effect and then peel off the base film, this base film is called “base film”.
  • the base fabric or base film is also subjected to electron beam irradiation treatment in order to improve the surface of the base fabric or base film.
  • the ability to affinity-graft water-based glue allows the surface of the base fabric or base film to actively adsorb the water-based glue, thereby solving the problem of the difficulty of high-precision transfer of the liquid micron film from the micro-concave coating roller to the base fabric or base film and the difficulty of the liquid micron film.
  • the lateral uniformity is a key factor affecting the quality of the coating.
  • the key factor that determines the uniformity of application is the flow of bubbles to the base fabric or base film.
  • the transverse paths of the base film must be consistent. This is because the bubbles are affected by time and continue to decay. If the paths are inconsistent, the concentration of bubbles flowing to the surface of the base fabric or base film will be inconsistent, resulting in inconsistencies in the amount of glue carried, resulting in a deterioration in coating quality. unstable, the present invention effectively ensures the stability of coating quality by performing electron beam irradiation scanning processing on the base fabric or base film.
  • the preparation method of an ultra-thin and ultra-transparent microporous membrane is based on a calendered ultra-fine denier filament fabric (such as ultra-fine denier and ultra-thin pongee and nylon fibers, etc.), Since the cloth surface is a woven surface, there will be interlaced warp and weft undulations on the cloth surface. If the amount of undulation is large, there will be more glue in the depressions and less glue in the protrusions.
  • the present invention It is preferably used as the base cloth.
  • the present invention performs calendering treatment on the ultra-fine denier filament cloth to reduce the uneven structure on the cloth surface.
  • the roller in contact with the base fabric is a high-mirror alloy roller, and the supporting roller is a high-flat rubber roller;
  • the calender Preferably, it is a machine with high-precision intelligent temperature control and pressure control.
  • photoelectric induction is used to sense the linear speed of each contact roller surface, and the linear speed of each roller surface is controlled to be synchronized, so that the ultra-fine film is only subject to vertical pressure during calendering.
  • the coating surface of the base fabric or base film is also hot-pressed or cold-pressed, and the hot-pressing temperature is lower than
  • the melting point of the water-based glue that is, the film-forming material
  • the temperature of cold pressing is room temperature, and the pressure of hot pressing or cold pressing is 0.5 ⁇ 1MPa (the The value is the value displayed on the pressure gauge), the speed of hot pressing or cold pressing is 15 ⁇ 50 meters/minute; the purpose of hot pressing or cold pressing is to allow the walls of the microporous membrane to collapse through the micro-nanopores and then slowly rebound.
  • the purpose of hot pressing or cold pressing is to allow the walls of the microporous membrane to collapse through the micro-nanopores and then slowly rebound.
  • the reason why hot pressing is used is to allow the air in the pores to expand due to heat and pass through the outside Pressure makes the micropores penetrate and increase breathability. Hot pressing makes some micropores collapse and penetrate, making the film thinner and softer. It changes the internal structure of the micropores to achieve the effects of ultra-thin, fracturing, penetration and super-soft pores with slow rebound. If you are concerned that the hot pressing temperature is not well controlled, you can also use cold pressing multiple times as an alternative process.
  • the good air permeability of the microporous membrane of the present invention is on the one hand because the pore size of the micropores is smaller, and on the other hand because the walls of the microporous membrane are connected with micro-nanopores that are collapsed and penetrated.
  • the microporous membrane prepared using the method of the prior art There are fewer wall connections and through holes, so the air permeability is relatively poor.
  • the base fabric or the coating surface of the base film is also subjected to hydrophobic treatment.
  • the hydrophobic treatment can be performed by adding the base fabric to Or the base film is immersed in a hydrophobic finishing agent solution and then dried, or the hydrophobic finishing agent solution is sprayed on the coating surface of the base fabric or base film and then dried.
  • the hydrophobic finishing agent can be a fluorine-containing hydrophobic agent finishing, carbon-containing hydrophobic finishing agent, etc., preferably environmentally friendly hydrophobic finishing agents.
  • the purpose of hydrophobic treatment is to give the microporous membrane excellent water pressure resistance;
  • the ultra-thin and ultra-permeable microporous membrane is distributed with 1 ⁇ 5wt% hydrophobic finishing agent.
  • the anti-water level of the membrane (tested in accordance with the standard of GB/T 4745-2012 "Waterproof Method for Detection and Evaluation of Waterproof Performance of Textiles") is greater than Equal to level 4, the water pressure resistance of the membrane (tested in accordance with the standard GB/T 4744-2013 "Testing and Evaluation of Textile Waterproof Performance by Hydrostatic Pressure Method" is greater than or equal to 5KPa.
  • Hot pressing (or cold pressing) and hydrophobic treatment are both performed after micro-concave high-precision coating.
  • the order of the two is not limited. Hot pressing (or cold pressing) can be performed first, and then hydrophobic treatment can be performed. Hydrophobic treatment can be performed first and then hot pressing (or cold pressing).
  • the ultra-thin and ultra-permeable microporous film can be first combined with the base fabric or base cloth.
  • the base film can be separated and then rolled up, or it can be rolled up directly without separation.
  • the roller in the winding equipment that is in contact with the ultra-thin and ultra-transparent microporous film is a high-precision mirror roller. The purpose is to prevent the surface of the microporous film from being damaged.
  • the winding equipment can control the winding tension, and the preferred winding equipment can perform tension-free winding to reduce the impact on the microporous membrane.
  • the present invention obtains bubbles with a diameter of less than 5 ⁇ m by reasonably setting the foaming control parameters of the micro-nano foaming machine and rationally designing the formula of the water-based foam glue, and then obtains bubbles with a thickness of less than 5 ⁇ m through micro-concave high-precision coating. , ultra-thin and ultra-transparent microporous membranes with micropore diameters below 5 ⁇ m, filling the gaps in existing technology;
  • the coating surface of the base fabric or base film is hot-pressed or cold-pressed so that the wall-connected micro-nanopores in the microporous membrane collapse and penetrate and then slowly rebound, forming a thinner and more flexible membrane than the original one.
  • the ultra-thin film layer with slow rebound properties can produce ultra-thin, highly transparent, and silent micro-nanoporous membranes;
  • the present invention gives the microporous membrane excellent water pressure resistance by performing hydrophobic treatment on the coating surface of the base fabric or base film;
  • the thickness of the microporous membrane of the present invention is smaller, which weakens the heaviness of the clothing and increases the lightness of the clothing.
  • the microporous membrane of the present invention has excellent air permeability, increases the comfort and perspiration effect of the human body, and improves the comfort of the clothing.
  • the breathable comfort of the microporous film of the present invention is excellent; the microporous film of the present invention has excellent lint-proof performance, which improves the wearing effect of the fabric; the microporous film of the present invention has excellent waterproof performance, which increases the resistance of the product when it is used outdoors in bad weather such as rain and snow. Excellent weather resistance, providing users with all-weather protection;
  • the ultra-thin and ultra-permeable microporous membrane of the present invention has excellent performance and has broad prospects for application in down jackets, outdoor products and high-permeability, high-downproof and high-waterproof technologies.
  • Figure 1 is a schematic flow diagram of the preparation process of the ultra-thin and ultra-transparent microporous membrane according to Embodiment 1 of the present invention:
  • Figures 2 to 3 are SEM images of the ultra-thin and ultra-transparent microporous membrane of Example 3 of the present invention.
  • Figure 4 is an SEM image of the cross-section of the ultra-thin and ultra-transparent microporous membrane in Example 3 of the present invention.
  • Figure 5 is a partial SEM image of the ultra-thin and ultra-transparent microporous membrane of Example 3 of the present invention after the slow rebound is completed in 24 hours after hot pressing at 100°C.
  • the order of steps (2) and (3) is not limited and can be reversed or performed at the same time without affecting the structure and performance of the final product; steps (3) and (4) can be performed at the same time. ;
  • the electron beam irradiation treatment can be performed first and then the calendering treatment, or the calendering treatment can be performed first and then the electron beam irradiation is performed.
  • the processing has no impact on the structure and performance of the final product;
  • the order of steps (6) and (7) is not limited and can be reversed or performed at the same time, and has no impact on the structure and performance of the final product.
  • Water-based foaming agent Shenzhen Guangsiyuan polyurethane soft foaming agent GSYPU G-595 silicone oil;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Yousu Chemical modified silicone polyether microemulsion FM-550;
  • Base fabric super fine denier filament fabric
  • Hydrophobic finishing agent Shanghai Huzheng colorless transparent hydrophobic coating additive SSJ-FG3/SSJ-F181;
  • the base fabric is subjected to electron beam irradiation treatment and calendering treatment.
  • the roller in contact with the base fabric is a high mirror alloy roller, and the supporting roller is a high-flat rubber roller;
  • the micro-nano foaming machine automatically extracts water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 500 g/L, and the working speed of the mixing head is 330 rpm, the output of the pump is 150L/hour;
  • the diameter of the bubbles obtained by the foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • Cloth loading Complete the loading of the entire machine with the base fabric according to the machine's cloth guide direction requirements.
  • the coated product i.e. ultra-thin and ultra-transparent microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • the hot pressing temperature is 155°C
  • the hot pressing pressure is 1MPa
  • the hot pressing speed is 35 meters/minute
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 4.5 ⁇ m
  • the pore size of the micropores is 1 ⁇ 4 ⁇ m
  • the average pore size is 2.5 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453
  • the "Testing of Breathability of Textile Fabrics" standard test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with the GB/T14272-2011 "Down Clothing" standard.
  • the membrane's water resistance level is above level 4, and the membrane's water resistance
  • the pressure is greater than 5KPa.
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is basically the same as Example 1, except that step (6) is omitted.
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 5 ⁇ m
  • the pore size of the micropores is 1-5 ⁇ m
  • the average pore size is 3 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453 "Textiles" Fabric Breathability Test” standard test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with GB/T14272-2011 "Down Clothing” standard.
  • the membrane's anti-water level is above level 4, and the membrane's water pressure resistance is greater than KPa.
  • Example 1 Comparing Example 1 with Example 2, it can be seen that the thickness of the ultra-thin and ultra-transparent microporous membrane of Example 2 that has not been hot-pressed is slightly thicker than that of the ultra-thin and ultra-transparent microporous membrane of Example 1 that has been hot-pressed. The thickness is large, and the hand feel is not as soft as that of Example 1. This is because the ultra-thin and ultra-transparent microporous membrane of Example 1 has been hot-pressed, and the hard supports of the internal wall-connected holes are removed during the hot-press treatment. There is cracking and slow rebound effect after hot pressing.
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is as follows:
  • Water-based foaming agent Shenzhen Guangsiyuan polyurethane soft foaming agent GSYPU G-595 silicone oil;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Yousu Chemical modified silicone polyether microemulsion FM-550;
  • Hydrophobic finishing agent Shanghai Huzheng colorless transparent hydrophobic coating additive SSJ-FG3/SSJ-F181;
  • the micro-nano foaming machine automatically extracts water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 500 g/L, and the working speed of the mixing head is 330 rpm, the pump output is 150L/hour;
  • the diameter of the bubbles obtained by the foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • the coated product i.e. ultra-thin and ultra-permeable microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • the hot pressing temperature is 100°C
  • the hot pressing pressure is 0.8MPa
  • the hot pressing speed is 25 meters/minute
  • the ultra-thin and ultra-transparent microporous membrane finally produced is a membrane containing micropores (as shown in Figures 2 to 3).
  • many micro-nano micropores can be seen on the membrane surface, as shown in Figure 4.
  • the thickness of the membrane is 4 ⁇ m
  • the pore size of the micropores is 1 ⁇ 4 ⁇ m
  • the average pore size is 2 ⁇ m
  • the air permeability of the membrane is in accordance with GB/T 5453 "Testing of Air Permeability of Textile Fabrics" standard
  • the test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with the GB/T14272-2011 "Down Clothing" standard.
  • the membrane's anti-water level is above level 4, and the membrane's water pressure resistance is greater than 5KPa.
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is as follows:
  • Water-based foaming agent Jinan Guolan New Materials Co., Ltd. F-8805 silicone foam stabilizer foaming agent;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Mobel Chemical modified silicone polyether microemulsion FM-550;
  • PE film PE film
  • Hydrophobic finishing agent Shanghai Huzheng colorless and transparent anti-graffiti additive FTY-FG3;
  • the micro-nano foaming machine automatically extracts the water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 550 g/L, and the working speed of the mixing head is 330 rpm, the output of the pump is 100L/hour;
  • the diameter of the bubbles obtained by foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • the coated product i.e. ultra-thin and ultra-permeable microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • the temperature of cold pressing is 25°C
  • the pressure of cold pressing is 0.8MPa
  • the speed of cold pressing is 30 meters/minute
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 4 ⁇ m
  • the pore size of the micropores is 1 ⁇ 4 ⁇ m
  • the average pore size is 2 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453 "Textiles" Fabric Breathability Test” standard test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with GB/T14272-2011 "Down Clothing” standard.
  • the membrane's anti-water level is above level 4, and the membrane's water pressure resistance is greater than 5KPa.
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is as follows:
  • Water-based foaming agent Jinan Guolan New Materials Co., Ltd. F-8805 silicone foam stabilizer foaming agent;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Mobel Chemical modified silicone polyether microemulsion FM-550;
  • PE film PE film
  • Hydrophobic finishing agent Shanghai Huzheng colorless and transparent anti-graffiti additive FTY-FG3;
  • the micro-nano foaming machine automatically extracts the water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 550 g/L, and the working speed of the mixing head is 330 rpm, the pump output is 200L/hour;
  • the diameter of the bubbles obtained by the foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • the coated product i.e., ultra-thin and ultra-transparent microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • step (3) Transport the product in step (3) to the slightly concave coating trough through the hose, so that the coating roller is submerged in it, and the submersion depth is 1/4 ⁇ 1/2 of the diameter of the coating roller (because The additives in the tank are dynamic, so the submersion depth is within a range);
  • step (4) Perform hydrophobic treatment on the coating surface of the base film treated in step (4), so that 8wt% hydrophobic finishing agent is distributed on the ultra-thin and ultra-transparent microporous film.
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 5 ⁇ m
  • the pore size of the micropores is 1 ⁇ 4 ⁇ m
  • the average pore size is 2 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453 "Textiles" Fabric Breathability Test” standard test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with GB/T14272-2011 "Down Clothing” standard.
  • the membrane's anti-water level is above level 4, and the membrane's water pressure resistance is greater than 5KPa.
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is as follows:
  • Water-based foaming agent Shenzhen Dudao United Chemical Co., Ltd. 9002-84-0 synthetic leather foaming agent;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Yousu Chemical modified silicone polyether microemulsion FM-550;
  • Base fabric super fine denier filament fabric
  • the micro-nano foaming machine automatically extracts water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 500 g/L, and the working speed of the mixing head is 330 rpm, the pump output is 200L/hour;
  • the diameter of the bubbles obtained by the foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • Cloth loading Complete the loading of the entire machine with the base fabric according to the machine's cloth guide direction requirements.
  • the coated product i.e., ultra-thin and ultra-transparent microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • step (3) Transport the product in step (3) to the slightly concave coating trough through the hose, so that the coating roller is submerged in it, and the submersion depth is 1/4 ⁇ 1/2 of the diameter of the coating roller (because The additives in the tank are dynamic, so the submersion depth is within a range);
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 5 ⁇ m
  • the pore size of the micropores is 1 ⁇ 4 ⁇ m
  • the average pore size is 2 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453 "Textiles" Fabric Breathability Test” standard test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with GB/T14272-2011 "Down Clothing” standard.
  • the membrane's anti-water level is above level 4, and the membrane's water pressure resistance is greater than 5KPa.
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is as follows:
  • Water-based foaming agent Shenzhen Dudao United Chemical Co., Ltd. 9002-84-0 synthetic leather foaming agent;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Yousu Chemical modified silicone polyether microemulsion FM-550;
  • Base fabric super fine denier filament fabric
  • the base fabric is subjected to electron beam irradiation treatment and calendering treatment.
  • the roller in contact with the base fabric is a high mirror alloy roller, and the supporting roller is a high-flat rubber roller;
  • the micro-nano foaming machine automatically extracts water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 500 g/L, and the working speed of the mixing head is 330 rpm, the pump output is 300L/hour;
  • the diameter of the bubbles obtained by the foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • Cloth loading Complete the loading of the entire machine with the base fabric according to the machine's cloth guide direction requirements.
  • the coated product i.e. ultra-thin and ultra-transparent microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • the temperature of cold pressing is 27°C
  • the pressure of cold pressing is 1MPa
  • the speed of cold pressing is 30 meters/minute.
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 5 ⁇ m
  • the pore size of the micropores is 1 ⁇ 5 ⁇ m
  • the average pore size is 3 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453 "Textiles" Fabric Breathability Test” standard test complies with national standards.
  • the membrane's anti-downing properties are tested in accordance with GB/T14272-2011 "Down Clothing” standard.
  • the membrane's anti-water level is level 4, and the membrane's water pressure resistance is 5KPa. .
  • a method for preparing an ultra-thin and ultra-permeable microporous membrane is as follows:
  • Water-based foaming agent Shenzhen Dudao United Chemical Co., Ltd. 9002-84-0 synthetic leather foaming agent;
  • Silicone polyether emulsion water-based foam stabilizer Shandong Yousu Chemical modified silicone polyether microemulsion FM-550;
  • Hydrophobic finishing agent Shanghai Huzheng colorless and transparent anti-graffiti additive FTY-FG3;
  • the micro-nano foaming machine automatically extracts water-based foam glue from the glue barrel and foams the water-based foam glue.
  • the foaming control parameters of the micro-nano foaming machine include: bubble specific gravity 500 g/L, and the working speed of the mixing head is 330 rpm, the pump output is 250L/hour;
  • the diameter of the bubbles obtained by the foaming treatment is less than 5 ⁇ m, and the average diameter is 3 ⁇ m;
  • Micro-concave high-precision coating uses a high-precision micro-concave coating machine that forms a uniform film when the coating thickness is 5 ⁇ m and the film surface is uniform without blind spots in the coating film.
  • the specific steps are as follows:
  • the coated product i.e. ultra-thin and ultra-permeable microporous film
  • the roller in contact with the ultra-thin and ultra-transparent microporous membrane is a high-precision mirror roller;
  • the hot pressing temperature is 100°C
  • the hot pressing pressure is 0.8MPa
  • the hot pressing speed is 35 meters/minute
  • the ultra-thin and ultra-permeable microporous membrane finally produced is a membrane containing micropores.
  • the thickness of the membrane is 4.5 ⁇ m
  • the pore size of the micropores is 1 ⁇ 4 ⁇ m
  • the average pore size is 2 ⁇ m.
  • the air permeability of the membrane is in accordance with GB/T 5453 " The test of "Test of Breathability of Textile Fabrics" is in line with the national standard.
  • the anti-downing property of the membrane is tested in accordance with the GB/T14272-2011 "Down Clothing" standard.
  • the anti-water level of the membrane is level 4, and the water pressure resistance of the membrane is 5KPa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

一种超薄超透的微孔膜的制备方法，超薄超透的微孔膜为含有微孔的膜，膜的厚度在5μm以下，微孔的孔径在5μm以下；制备方法为：采用微纳米发泡机对水性发泡胶进行发泡处理得到气泡后进行微凹高精涂布得到超薄超透的微孔膜；水性发泡胶主要由水性胶、水性匀泡剂、硅树脂聚醚乳液类水性稳泡剂和水组成；微纳米发泡机的发泡控制参数包括：气泡比重350~700克/L，搅拌头工作转速250~400转/分，泵的输出量100~500L/小时；气泡的直径在5μm以下；微凹高精涂布时涂层的厚度在5μm以下，同时大于等于气泡的直径。该方法简单，制得的产品的厚度小，透气性和防钻绒性好。

Description

一种超薄超透的微孔膜的制备方法 技术领域
本发明属于纺织品后整理涂布技术领域，涉及一种超薄超透的微孔膜的制备方法。
 背景技术
羽绒服、羽绒被和很多户外纺织品等由于具有良好的保暖性能深受人们的喜欢，然而鸭绒、鹅绒、中空化纤等羽绒填充物会透过针眼移动到面料之外，出现钻绒现象，影响织物的穿着效果。现有技术往往是通过涂层的方式提高面料的防钻绒效果，其中涂层是指在面料表面涂抹一层防绒胶或PU胶，把纤维和纤维之间的孔隙挡住，不让羽绒钻出来，涂层虽然能够提高面料的防钻绒效果，然而会导致面料的透气性下降，一方面影响舒适性，另一方面会导致羽绒在湿热的环境下滋生大量细菌，使用效果不理想，此外，现有技术的涂层通常是采用直涂的方式，涂层的厚度较大，不仅会影响面料的透气性，还会导致服装的厚重感较强。
近年来微纳米发泡机和微纳米发泡涂布技术在涂布行业运用广泛，掀起了发泡涂布的一个环保技术革命，微纳米发泡机可在一定条件下产生微纳米气溶胶泡，微纳米气溶胶泡是指气泡发生时直径在10微米左右到数百纳米之间的气泡，这种气泡是介于微米气泡和纳米气泡之间，具有常规涂胶不具备的物理与化学特性。水性胶的微纳米发泡技术是近年新兴的一个环保发泡涂膜涂布技术，随着水性胶的微纳米发泡技术的引进和发展，环保水性发泡涂布技术也得到了广泛的运用，生产技术也日趋成熟。然而水性环保超微发泡（5μm以下）和超薄（5μm以下）涂布一直是行业内难以解决的难题，如能解决该难题，将有望通过超微纳米发泡得到内部通联网状高透超薄微纳米孔膜，进而解决现有技术的面料难以兼顾优良的防钻绒效果、较好的透气性能和较小的厚度的难题。
 技术问题
本发明的目的是解决现有技术中存在的问题，提供一种超薄超透的微孔膜的制备方法。
为达到上述目的，本发明采用的技术方案如下：
 一种超薄超透的微孔膜的制备方法，采用微纳米发泡机对水性发泡胶进行发泡处理得到气泡后进行微凹高精涂布（目前超薄涂布比较稳定的方式是微凹高精涂布方式，是通过精确计算微凹孔中的带液量转涂到布面，来控制厚薄的高精涂布方式）得到超薄超透的微孔膜；
 按重量份数计，水性发泡胶包括100份水性胶（如PU、PE、PP、PET等各种材质高分子材料）、0~15份功能性助剂、0.1~5份水性匀泡剂（硅油类水性匀泡剂或非硅油类水性匀泡剂）、0.1~5份硅树脂聚醚乳液类（MPS）水性稳泡剂和n份水（水的份数取决于其他组分的份数和水性胶、功能性助剂和水的混合物的粘度），水性胶、功能性助剂和水的混合物的粘度为500CPS；
 微纳米发泡机的发泡控制参数包括：气泡比重350~700克/L，搅拌头工作转速250~400转/分，泵的输出量100~500L/小时；
 气泡的直径（本发明中气泡的直径都为气泡的外径）在5μm以下；
 微凹高精涂布时涂层的厚度在5μm以下，同时大于等于气泡的直径；
 超薄超透的微孔膜为含有微孔的膜，膜的厚度在5μm以下，微孔的孔径在5μm以下。
现有技术采用微纳米发泡机对水性发泡胶进行发泡处理得到的气泡的直径往往在10μm以上，很难达到10μm以下，本发明采用微纳米发泡机对水性发泡胶进行发泡处理得到的气泡的直径却可以达到5μm以下，主要原因在于：
 ①本发明合理设置了微纳米发泡机的发泡控制参数，其中，气泡比重为350~700克/L，搅拌头工作转速为250~400转/分，泵的输出量为100~500L/小时；气泡比重即气体和液体的比例，气泡比重大则气泡直径小，气泡比重小则气泡直径大；搅拌头工作转速高则成泡量大，搅拌头工作转速高低则成泡量小；泵的输出量根据涂布需求而定，不同的水性胶所需的泵的输出量都有差异，生产前要做产前试样的，做发泡调试参数试验刮小样电镜分析，达到5μm以下才可以大货生产；
 ②水性发泡胶中加入了一定量的水性匀泡剂，水性匀泡剂能够收窄发泡的孔径区间，水性匀泡剂的用量适宜，用量过大虽然气泡的直径较小但会影响成孔，用量过小则气泡的直径较大；
 ③水性发泡胶中加入了一定量的硅树脂聚醚乳液类水性稳泡剂，硅树脂聚醚乳液类水性稳泡剂能够控制气泡液膜的结构稳定性，使表面活性剂分子在气泡的液膜有秩序的分布，赋予气泡良好的弹性和自修复能力，硅树脂聚醚乳液类水性稳泡剂的稳泡效果明显，使用方便，可延长小气泡的存在时间，减少小气泡融合成大气泡的情况的发生，使气泡的直径性状一直保持微纳米级别。
一般而言，涂层的厚度要大于气泡的直径，现有技术由于气泡的直径往往在10μm以上，因此只能用在简单的厚涂上（比如25~50μm刮刀涂布），无法通过微凹高精涂布来制备厚度在5μm以下的超薄微孔膜，本发明由于气泡的直径在5μm以下，因此可以通过微凹高精涂布来制备厚度在5μm以下的超薄微孔膜。
现有技术的涂层通常是采用直涂的方式，不仅涂层的厚度较大，防绒胶或PU胶也会直接渗入布的纱线纤维中，使面料变硬造成抖动时发出哗哗的响声；本发明的涂层采用微凹高精涂布的方式，不仅涂层的厚度较薄，水性胶也不会过分渗入布的纱线纤维中，因而面料柔软舒适，静音效果较好。
作为优选的技术方案：
 如上所述的一种超薄超透的微孔膜的制备方法，膜的厚度为0.5~5μm，微孔的孔径为0.1~5μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的静音效果优良，摩擦无声响；棉花、羊毛之类的天然纤维的长度约为其直径的1千倍到3千倍，棉花纤维长度在1~5厘米，直径在20μm左右，蚕丝是最细的天然纤维，截面直径约10μm，羊绒纤维的细度范围很窄（13~19μm），且细度14μm以下绒纤维，长度基本不超过30mm，羽绒直径在羽绒服含气性高、透气性小，羽绒一般是选用鸭或者鹅胸部的羽毛，羽绒的毛纤维平均直径大于5μm，所以本发明的微孔的孔径在5μm以下的微孔孔可以有很好的防绒性能。
如上所述的一种超薄超透的微孔膜的制备方法，微凹高精涂布采用在涂层厚度为1~5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机。
如上所述的一种超薄超透的微孔膜的制备方法，微凹高精涂布的对象为基布或基膜，一般如果要在布的表面上涂膜，布就叫作“基布”，如果要在有剥离效果的底膜上涂膜后再剥离这个底膜，这个底膜就叫作“基膜”。
如上所述的一种超薄超透的微孔膜的制备方法，微凹高精涂布前，还对基布或基膜进行电子束辐照处理，目的是提高基布或基膜的表面亲和接枝水性胶的能力，使得基布或基膜的表面能够主动吸附水性胶，进而解决了液态微米膜难以从微凹涂布辊高精转移到基布或基膜以及液态微米膜难以维持静态稳定的问题；气泡从发泡机里出来，施加到基布或基膜表面，横向的均匀性是影响涂层品质的关键因素，决定施加均匀性的关键因素是气泡流到基布或基膜横向的路径要一致，这是因为气泡受时间影响，在一直衰减，若路径不一致，则流到基布或基膜表面的气泡浓度不一致，导致携带胶量的不一致，造成涂层品质的不稳定，本发明通过对基布或基膜进行电子束辐照扫描处理有效保证了涂层品质的稳定性。
如上所述的一种超薄超透的微孔膜的制备方法，基布为经过压光处理的超细旦长丝面料（比如超细旦超薄的春亚纺和尼丝纺等），由于布面是织造面，会有经纬交错布面起伏，如果是起伏量大会有凹陷处存胶多、凸出位置存胶少，鉴于超细旦长丝布表面的凹凸变化小，因而本发明优选将其作为基布，同时为了尽可能地降低布面凹凸结构对涂布平整性产生不良影响，本发明对超细旦长丝布进行了压光处理，以减少布面凹凸结构。
如上所述的一种超薄超透的微孔膜的制备方法，压光处理采用的压光机中，与基布接触的辊为高镜面合金辊，托辊为高平橡胶辊；压光机优选为高精智能温控和压力控制的机器，同时用光电感应各个接触辊面的线速度，控制各个辊面线速度同步，实现压光工作时超微膜只受到垂直面的压力。
如上所述的一种超薄超透的微孔膜的制备方法，微凹高精涂布后，还对基布或基膜的涂层面进行热压或冷压，热压的温度低于水性胶（即成膜的材质）的熔点且高于室温，同时不超过基布或基膜的最高耐温值，冷压的温度为室温，热压或冷压的压力为0.5~1MPa（该值为压力表显示的数值），热压或冷压的速度为15~50米/分钟；热压或冷压的目的是微孔膜内的壁连微纳米孔塌陷贯通后再慢回弹，形成比原来更薄、而且更柔具有慢回弹性质的超薄膜层，可以得到超薄、高透、静音的微纳米孔膜，之所以采用热压是为了让孔内空气受热膨胀，通过外部压力作用让微孔贯通增加透气性，热压让部分微孔塌陷和贯通让成膜更加轻薄柔软，改变微孔的内部结构达到超薄、压裂、贯穿和超柔孔径慢回弹的效果，如果担心热压温度把握不好也可以采用冷压多次的方法替代工艺。
本发明的微孔膜的透气性好一方面是因为微孔的孔径较小，另一方面是因为微孔膜内的壁连微纳米孔塌陷贯通，采用现有技术的方法制备的微孔膜的壁连和贯穿孔较少，所以透气性相对较差。
如上所述的一种超薄超透的微孔膜的制备方法，微凹高精涂布后，还对基布或基膜的涂层面进行疏水性处理，疏水性处理可以采用将基布或基膜浸渍在疏水整理剂溶液中后烘干的方式，也可以采用将疏水整理剂溶液喷涂在基布或基膜的涂层面后烘干的方式，疏水整理剂可以是含氟系疏水剂整理、含碳系疏水整理剂等，优选为环保疏水整理剂，疏水性处理的目的是赋予微孔膜优良的抗水压性能；
 超薄超透的微孔膜上分布有1~5wt%的疏水整理剂，膜的防沾水等级（按照GB/T 4745-2012《纺织品 防水性能的检测和评价 沾水法》标准检测）大于等于4级，膜的耐水压（按照GB/T 4744-2013《纺织品 防水性能的检测和评价 静水压法》标准检测）大于等于5KPa。
热压（或冷压）和疏水性处理都是在微凹高精涂布后进行的，二者的先后次序不限，可以先进行热压（或冷压），再进行疏水性处理，也可以先进行疏水性处理，再进行热压（或冷压）。
如上所述的一种超薄超透的微孔膜的制备方法，得到超薄超透的微孔膜后，还需进行收卷，可以先将超薄超透的微孔膜与基布或基膜分离后再收卷，也可以不经分离直接收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊，目的是防止微孔膜的表面被破坏，收卷设备可以控制收卷张力，优选的收卷设备可进行无张力收卷，以降低对微孔膜的影响。
有益效果：
 （1）本发明通过合理设置微纳米发泡机的发泡控制参数以及合理设计水性发泡胶的配方制得了直径在5μm以下的气泡，进而通过微凹高精涂布制得了厚度在5μm以下、微孔的孔径在5μm以下的超薄超透的微孔膜，填补了现有技术的空白；
 （2）本发明通过对基布或基膜的涂层面进行热压或冷压使得微孔膜内的壁连微纳米孔塌陷贯通后再慢回弹，形成比原来更薄、而且更柔具有慢回弹性质的超薄膜层，可以得到超薄、高透、静音的微纳米孔膜；
 （3）本发明通过对基布或基膜的涂层面进行疏水性处理，赋予了微孔膜优良的抗水压性能；
 （4）本发明的微孔膜的厚度较小，减弱了服装的厚重感，增加了服装的轻薄性；本发明的微孔膜的透气性能优良，增加了人体舒适排汗效果，提高了服装的透气舒适性；本发明的微孔膜的防钻绒性能优良，改善了织物的穿着效果；本发明的微孔膜的防水性能优良，增加了产品户外使用中遇到雨雪天等恶劣天气的耐候性，能够给使用者全天候的保护；
 （5）本发明的超薄超透的微孔膜的性能优良，在羽绒服、户外用品和高透、高防绒及高防水技术运用有着广泛的前景。
 附图说明
图1为本发明的实施例1的超薄超透的微孔膜的制备工艺流程示意图：
 图2~3为本发明的实施例3的超薄超透的微孔膜的SEM图；
 图4为本发明的实施例3的超薄超透的微孔膜的断面的SEM图；
 图5为本发明的实施例3的超薄超透的微孔膜经过100℃热压后24小时慢回弹完成后膜内局部SEM图。
 具体实施方式
下面结合具体实施方式，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
以下各实施例中步骤（2）和步骤（3）的先后次序不限，可对调，也可同时进行，对最终产品的结构和性能无影响；步骤（3）和步骤（4）可同时进行；步骤（3）中对基布进行电子束辐照处理和压光处理时，可以先进行电子束辐照处理，再进行压光处理，也可以先进行压光处理，再进行电子束辐照处理，对最终产品的结构和性能无影响；步骤（6）和步骤（7）的先后次序不限，可对调，也可同时进行，对最终产品的结构和性能无影响。
实施例1
 一种超薄超透的微孔膜的制备方法，如图1所示，具体步骤如下：
 （1）原料准备；
 水性胶：PU；
 功能性助剂：上海沪正无色透明纳米银溶液，牌号为AGS-WM1000A/B/C；
 水性匀泡剂：深圳广思远聚氨酯软泡匀泡剂 GSYPU G-595 硅油；
 硅树脂聚醚乳液类水性稳泡剂：山东优素化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基布：超细旦长丝面料；
 疏水整理剂：上海沪正无色透明疏水涂料助剂SSJ-FG3/SSJ-F181；
 （2）调胶；
 按重量份数计，将100份水性胶、2份功能性助剂和水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）处理基布；
 对基布进行电子束辐照处理和压光处理，压光处理采用的压光机中，与基布接触的辊为高镜面合金辊，托辊为高平橡胶辊；
 （4）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重500克/L，搅拌头工作转速330转/分，泵的输出量150L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （5）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （5.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （5.2）上布：将基布按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （5.3）涂布：将步骤（4）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （5.4）烘干：将涂布后的基布以50米/分钟的速度输送至四节烘箱中进行烘干，按基布进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、130℃、155℃、155℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒；
 （6）热压；
 对经过步骤（5）处理的基布的涂层面进行热压；
 热压的温度为155℃，热压的压力为1MPa，热压的速度为35米/分钟；
 （7）疏水性处理；
 对经过步骤（5）处理的基布的涂层面进行疏水性处理，使得超薄超透的微孔膜上分布有8wt%的疏水整理剂。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为4.5μm，微孔的孔径为1~4μm，平均孔径为2.5μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级以上，膜的耐水压大于5KPa。
实施例2
 一种超薄超透的微孔膜的制备方法，基本同实施例1，不同之处仅在于省略步骤（6）。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为5μm，微孔的孔径为1-5μm，平均孔径为3μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级以上，膜的耐水压大于KPa。
将实施例1与实施例2对比可以看出，实施例2的未经过热压的超薄超透的微孔膜的厚度略微比经过热压的实施例1的超薄超透的微孔膜的厚度大，同时手感也没有实施例1的手感轻柔，这是因为实施例1的超薄超透的微孔膜经过了热压处理，热压处理过程中内部的壁连孔的硬支撑被热压后有破裂和慢回弹效果。
实施例3
 一种超薄超透的微孔膜的制备方法，具体步骤如下：
 （1）原料准备；
 水性胶：PU；
 功能性助剂：上海沪正无色透明纳米银溶液，牌号为AGS-WM1000A/B/C；
 水性匀泡剂：深圳广思远聚氨酯软泡匀泡剂 GSYPU G-595 硅油；
 硅树脂聚醚乳液类水性稳泡剂：山东优素化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基膜：opp膜；
 疏水整理剂：上海沪正无色透明疏水涂料助剂SSJ-FG3/SSJ-F181；
 （2）调胶；
 按重量份数计，将100份水性胶、2份功能性助剂和水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）处理基膜；
 对基膜进行电子束辐照处理；
 （4）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重500克/L，搅拌头工作转速330转/分，泵的输出量150L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （5）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （5.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （5.2）上布：将基膜按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （5.3）涂布：将步骤（4）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （5.4）烘干：将涂布后的基膜以25米/分钟的速度输送至四节烘箱中进行烘干，按基膜进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、105℃、110℃、110℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒；
 （6）热压；
 对经过步骤（5）处理的基膜的涂层面进行热压；
 热压的温度为100℃，热压的压力为0.8MPa，热压的速度为25米/分钟；
 热压后24小时慢回弹完成后膜内局部SEM图如图5所示，从图中可以明显看到孔径有贯穿扁平塌陷效果，这样可以增加膜的柔软舒适和静音效果；
 （7）疏水性处理；
 对经过步骤（5）处理的基膜的涂层面进行疏水性处理，使得超薄超透的微孔膜上分布有8wt%的疏水整理剂。
最终制得的超薄超透的微孔膜为含有微孔的膜（如图2~3所示，在高倍电镜图中，可以看到膜面很多微纳米微孔，如图4所示，在高倍电镜下断面有很多微纳米孔），膜的厚度为4μm，微孔的孔径为1~4μm，平均孔径为2μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级以上，膜的耐水压大于5KPa。
实施例4
 一种超薄超透的微孔膜的制备方法，具体步骤如下：
 （1）原料准备；
 水性胶：PE；
 功能性助剂：上海沪正无色透明纳米锌离子溶液，牌号为ZNS-WP20；
 水性匀泡剂：济南国蓝新材料有限公司F-8805有机硅泡沫稳定剂匀泡剂；
 硅树脂聚醚乳液类水性稳泡剂：山东摩贝尔化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基膜：pe膜；
 疏水整理剂：上海沪正无色透明防涂鸦助剂FTY-FG3；
 （2）调胶；
 按重量份数计，将100份水性胶、2份功能性助剂和水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）处理基膜；
 对基膜进行电子束辐照处理；
 （4）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重550克/L，搅拌头工作转速330转/分，泵的输出量100L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （5）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （5.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （5.2）上布：将基膜按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （5.3）涂布：将步骤（4）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （5.4）烘干：将涂布后的基膜以25米/分钟的速度输送至四节烘箱中进行烘干，按基膜进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、105℃、110℃、110℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒；
 （6）冷压；
 对经过步骤（5）处理的基膜的涂层面进行冷压；
 冷压的温度为25℃，冷压的压力为0.8MPa，冷压的速度为30米/分钟；
 （7）疏水性处理；
 对经过步骤（5）处理的基膜的涂层面进行疏水性处理，使得超薄超透的微孔膜上分布有8wt%的疏水整理剂。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为4μm，微孔的孔径为1~4μm，平均孔径为2μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级以上，膜的耐水压大于5KPa。
实施例5
 一种超薄超透的微孔膜的制备方法，具体步骤如下：
 （1）原料准备；
 水性胶：PP；
 功能性助剂：上海沪正纳米二氧化钛水性分散液，牌号为TIO-WPR010；
 水性匀泡剂：济南国蓝新材料有限公司F-8805有机硅泡沫稳定剂匀泡剂；
 硅树脂聚醚乳液类水性稳泡剂：山东摩贝尔化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基膜：pe膜；
 疏水整理剂：上海沪正无色透明防涂鸦助剂FTY-FG3；
 （2）调胶；
 按重量份数计，将100份水性胶、1份功能性助剂和水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重550克/L，搅拌头工作转速330转/分，泵的输出量200L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （4）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （4.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （4.2）上布：将基膜按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （4.3）涂布：将步骤（3）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （4.4）烘干：将涂布后的基膜以25米/分钟的速度输送至四节烘箱中进行烘干，按基膜进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、105℃、110℃、110℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒；
 （5）疏水性处理；
 对经过步骤（4）处理的基膜的涂层面进行疏水性处理，使得超薄超透的微孔膜上分布有8wt%的疏水整理剂。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为5μm，微孔的孔径为1~4μm，平均孔径为2μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级以上，膜的耐水压大于5KPa。
实施例6
 一种超薄超透的微孔膜的制备方法，具体步骤如下：
 （1）原料准备；
 水性胶：PET；
 功能性助剂：上海沪正纳米铜水性分散液，牌号为CUS-WM1000；
 水性匀泡剂：深圳市杜道联合化工有限公司9002-84-0合成革匀泡剂；
 硅树脂聚醚乳液类水性稳泡剂：山东优素化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基布：超细旦长丝面料；
 （2）调胶；
 按重量份数计，将100份水性胶、10份上海沪正纳米铜水性分散液和水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重500克/L，搅拌头工作转速330转/分，泵的输出量200L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （4）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （4.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （4.2）上布：将基布按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （4.3）涂布：将步骤（3）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （4.4）烘干：将涂布后的基布以40米/分钟的速度输送至四节烘箱中进行烘干，按基布进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、130℃、155℃、155℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为5μm，微孔的孔径为1~4μm，平均孔径为2μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级以上，膜的耐水压大于5KPa。
实施例7
 一种超薄超透的微孔膜的制备方法，具体步骤如下：
 （1）原料准备；
 水性胶：PE；
 水性匀泡剂：深圳市杜道联合化工有限公司9002-84-0合成革匀泡剂 ；
 硅树脂聚醚乳液类水性稳泡剂：山东优素化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基布：超细旦长丝面料；
 （2）调胶；
 按重量份数计，将100份水性胶、水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）处理基布；
 对基布进行电子束辐照处理和压光处理，压光处理采用的压光机中，与基布接触的辊为高镜面合金辊，托辊为高平橡胶辊；
 （4）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重500克/L，搅拌头工作转速330转/分，泵的输出量300L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （5）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （5.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （5.2）上布：将基布按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （5.3）涂布：将步骤（4）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （5.4）烘干：将涂布后的基布以45米/分钟的速度输送至四节烘箱中进行烘干，按基布进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、130℃、155℃、155℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒；
 （6）冷压；
 对经过步骤（5）处理的基布的涂层面进行冷压；
 冷压的温度为27℃，冷压的压力为1MPa，冷压的速度为30米/分钟。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为5μm，微孔的孔径为1~5μm，平均孔径为3μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级，膜的耐水压为5KPa。
实施例8
 一种超薄超透的微孔膜的制备方法，具体步骤如下：
 （1）原料准备；
 水性胶：PP；
 水性匀泡剂：深圳市杜道联合化工有限公司9002-84-0合成革匀泡剂；
 硅树脂聚醚乳液类水性稳泡剂：山东优素化工改性硅树脂聚醚微乳液 FM-550；
 水；
 基膜：opp膜；
 疏水整理剂：上海沪正无色透明防涂鸦助剂FTY-FG3；
 （2）调胶；
 按重量份数计，将100份水性胶、水在胶桶中混合得到粘度为500CPS的混合物后，向混合物中加入0.1份水性匀泡剂和0.5份硅树脂聚醚乳液类水性稳泡剂，得到水性发泡胶；
 （3）处理基膜；
 对基膜进行电子束辐照处理；
 （4）微纳米发泡；
 微纳米发泡机自动从胶桶中抽取水性发泡胶后对水性发泡胶进行发泡处理，微纳米发泡机的发泡控制参数包括：气泡比重500克/L，搅拌头工作转速330转/分，泵的输出量250L/小时；
 发泡处理得到的气泡的直径为5μm以下，平均直径为3μm；
 （5）微凹高精涂布；
 微凹高精涂布采用在涂层厚度为5μm时成膜均匀且膜面均匀没有涂膜盲点的高精微凹涂布机，具体步骤如下：
 （5.1）清理料槽选装微凹涂布轴：把生产用的微凹涂布料槽清理干净，选取网纹辊线数150根，设计涂层厚度为5μm的微凹棍按照规范操作流程安装在料槽中；
 （5.2）上布：将基膜按照机器的导布走向要求完成整个机器的上布，涂布后的产品（即超薄超透的微孔膜）在收卷处收卷，收卷设备中与超薄超透的微孔膜接触的辊为高精镜面辊；
 （5.3）涂布：将步骤（4）的产品通过输胶管输送到微凹涂布料槽，使得涂布辊淹没在其中，淹没深度为涂布辊直径的1/4~1/2（因为水槽里助剂是动态，所以淹没深度是一个范围）；
 （5.4）烘干：将涂布后的基膜以25米/分钟的速度输送至四节烘箱中进行烘干，按基膜进入的先后次序，涂布第一至四节烘箱的温度分别为100℃、105℃、110℃、110℃，第一至四节烘箱的风速分别为3m/秒、4m/秒、5m/秒、5m/秒；
 （6）热压；
 对经过步骤（5）处理的基膜的涂层面进行热压；
 热压的温度为100℃，热压的压力为0.8MPa，热压的速度为35米/分钟；
 （7）疏水性处理；
 对经过步骤（5）处理的基膜的涂层面进行疏水性处理，使得超薄超透的微孔膜上分布有8wt%的疏水整理剂。
最终制得的超薄超透的微孔膜为含有微孔的膜，膜的厚度为4.5μm，微孔的孔径为1~4μm，平均孔径为2μm；膜的透气性按照GB/T 5453《纺织品织物透气性的测试》标准检测符合国家标准，膜的防钻绒性按照GB/T14272-2011《羽绒服装》标准检测符合国家标准，膜的防沾水等级为4级，膜的耐水压为5KPa。

Claims (7)

  1. 一种超薄超透的微孔膜的制备方法，其特征在于，采用微纳米发泡机对水性发泡胶进行发泡处理得到气泡后进行微凹高精涂布得到超薄超透的微孔膜；
    按重量份数计，水性发泡胶包括100份水性胶、0~15份功能性助剂、0.1~5份水性匀泡剂、0.1~5份硅树脂聚醚乳液类水性稳泡剂和n份水，水性胶、功能性助剂和水的混合物的粘度为500CPS；
    微纳米发泡机的发泡控制参数包括：气泡比重350~700克/L，搅拌头工作转速250~400转/分，泵的输出量100~500L/小时；
    气泡的直径在5μm以下；
    微凹高精涂布时涂层的厚度在5μm以下，同时大于等于气泡的直径；
    超薄超透的微孔膜为含有微孔的膜，膜的厚度在5μm以下，微孔的孔径在5μm以下。
  2. 根据权利要求1所述的一种超薄超透的微孔膜的制备方法，其特征在于，微凹高精涂布的对象为基布或基膜。
  3. 根据权利要求2所述的一种超薄超透的微孔膜的制备方法，其特征在于，微凹高精涂布前，还对基布或基膜进行电子束辐照处理。
  4. 根据权利要求2所述的一种超薄超透的微孔膜的制备方法，其特征在于，基布为经过压光处理的超细旦长丝面料。
  5. 根据权利要求4所述的一种超薄超透的微孔膜的制备方法，其特征在于，压光处理采用的压光机中，与基布接触的辊为高镜面合金辊，托辊为高平橡胶辊。
  6. 根据权利要求2所述的一种超薄超透的微孔膜的制备方法，其特征在于，微凹高精涂布后，还对基布或基膜的涂层面进行热压或冷压，热压的温度低于水性胶的熔点且高于室温，同时不超过基布或基膜的最高耐温值，冷压的温度为室温，热压或冷压的压力为0.5~1MPa，热压或冷压的速度为15~50米/分钟。
  7. 根据权利要求2所述的一种超薄超透的微孔膜的制备方法，其特征在于，微凹高精涂布后，还对基布或基膜的涂层面进行疏水性处理。
PCT/CN2023/097669 2022-06-02 2023-06-01 一种超薄超透的微孔膜的制备方法 WO2023232098A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210619637.3A CN114703673B (zh) 2022-06-02 2022-06-02 一种超薄超透的微孔膜的制备方法
CN202210619637.3 2022-06-02

Publications (1)

Publication Number Publication Date
WO2023232098A1 true WO2023232098A1 (zh) 2023-12-07

Family

ID=82178031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/097669 WO2023232098A1 (zh) 2022-06-02 2023-06-01 一种超薄超透的微孔膜的制备方法

Country Status (2)

Country Link
CN (1) CN114703673B (zh)
WO (1) WO2023232098A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114703673B (zh) * 2022-06-02 2022-08-09 吴江市汉塔纺织整理有限公司 一种超薄超透的微孔膜的制备方法
CN115216136A (zh) * 2022-08-12 2022-10-21 吴江市汉塔纺织整理有限公司 抗菌聚氨酯软质泡沫体、制备方法及应用

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863788A (en) * 1988-02-16 1989-09-05 Micropore Waterproof breathable microporous membrane with cellular foam adhesive
CN103866579A (zh) * 2012-12-14 2014-06-18 东丽纤维研究所（中国）有限公司 一种透气防水透湿湿法涂层面料及其加工方法和用途
KR101482874B1 (ko) * 2013-08-07 2015-01-21 다이텍연구원 미세다공형코팅막을 가지는 초경량 나일론 직물의 제조방법
CN108774898A (zh) * 2018-05-31 2018-11-09 石狮市三益织造染整有限公司 一种新型透气防钻绒纺织品涂层工艺
CN110105744A (zh) * 2019-04-18 2019-08-09 四川大学 一种微孔水性防水透气膜、水性防水透气纺织品及其制备方法
CN110938385A (zh) * 2019-12-24 2020-03-31 吴江市汉塔纺织整理有限公司 一种1μm-4.9μm高透超薄PU膜
CN111021082A (zh) * 2019-11-19 2020-04-17 吴江市汉塔纺织整理有限公司 一种静音透气防钻绒涂层及其制备方法
CN114703673A (zh) * 2022-06-02 2022-07-05 吴江市汉塔纺织整理有限公司 一种超薄超透的微孔膜的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104264497B (zh) * 2014-09-09 2016-04-20 利达科技（福建）有限公司 一种合成革用水性聚氨酯发泡浆料的制备方法
CN110184825A (zh) * 2019-05-30 2019-08-30 陕西科技大学 一种环保型微纳米发泡水性聚氨酯超细纤维合成革及其制造方法
CN110920194A (zh) * 2019-12-24 2020-03-27 吴江市汉塔纺织整理有限公司 一种1μm-4.9μm的超薄PU膜

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4863788A (en) * 1988-02-16 1989-09-05 Micropore Waterproof breathable microporous membrane with cellular foam adhesive
CN103866579A (zh) * 2012-12-14 2014-06-18 东丽纤维研究所（中国）有限公司 一种透气防水透湿湿法涂层面料及其加工方法和用途
KR101482874B1 (ko) * 2013-08-07 2015-01-21 다이텍연구원 미세다공형코팅막을 가지는 초경량 나일론 직물의 제조방법
CN108774898A (zh) * 2018-05-31 2018-11-09 石狮市三益织造染整有限公司 一种新型透气防钻绒纺织品涂层工艺
CN110105744A (zh) * 2019-04-18 2019-08-09 四川大学 一种微孔水性防水透气膜、水性防水透气纺织品及其制备方法
CN111021082A (zh) * 2019-11-19 2020-04-17 吴江市汉塔纺织整理有限公司 一种静音透气防钻绒涂层及其制备方法
CN110938385A (zh) * 2019-12-24 2020-03-31 吴江市汉塔纺织整理有限公司 一种1μm-4.9μm高透超薄PU膜
CN114703673A (zh) * 2022-06-02 2022-07-05 吴江市汉塔纺织整理有限公司 一种超薄超透的微孔膜的制备方法

Also Published As

Publication number Publication date
CN114703673B (zh) 2022-08-09
CN114703673A (zh) 2022-07-05

Similar Documents

Publication Publication Date Title
WO2023232098A1 (zh) 一种超薄超透的微孔膜的制备方法
EP0832318B1 (en) Controlling the porosity and permeation of a web
JP4931938B2 (ja) 透湿性防水シート及びその製造方法
CN111286993B (zh) 一种热轧贴合代替衍缝的羽绒服面料处理方法
JP2002509994A (ja) 処理されたテキスタイルファブリック
US20130312236A1 (en) Method for preparing high-grade and casual fabric with special leather feel using biologically corn-based fibres
CN107988799A (zh) 一种防红外监测的防水阻燃聚酰胺纤维织物的制备工艺
CN106476353B (zh) 一种会呼吸的舒适吸湿排汗降温的面料及其制备方法
CN109322158B (zh) 一种单面防水织物及其制备方法
TW201812136A (zh) 一種雙層羽絨服面料
CN109972399A (zh) 仿真皮超细纤维合成革及其制备方法和应用
CN112663399A (zh) 一种用于水处理反渗透膜支撑体基材的湿法无纺布及其制备方法
US3846156A (en) Process for producing a soft,drapable artificial leather
CN116289173A (zh) 一种抗菌防钻绒面料及其制备方法
CN110106696A (zh) 一种符合人体皮肤柔软舒适度的气凝胶布及制备方法
CN109183437A (zh) 一种用水刺非织造基布制备保温隔热可吸附甲醛墙纸的方法
US3524755A (en) Process for applying a coating composition to a microporous material
CN114889260A (zh) 一种透气保暖的羽绒服面料及其制备方法
CN115262238B (zh) 一种防水透气聚氨酯涂层及其海岛湿法制备方法
US3516883A (en) Process for preparing composite sheet material
CN109267216B (zh) 一种芳纶单向导湿面料及其制备方法
JPS6017871B2 (ja) 皮革様シ−ト物の製造方法
CN113043705A (zh) 一种石墨烯导电面料及由该面料制成的服装
CN112663202A (zh) 一种用于沙滩巾的柔软速干面料及其制备方法
US3536553A (en) Process for preparing composite sheet material

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23815275

Country of ref document: EP

Kind code of ref document: A1