CN107663783B - Non-woven fabric coated with hot melt adhesive and hot glue process of non-woven fabric - Google Patents

Non-woven fabric coated with hot melt adhesive and hot glue process of non-woven fabric Download PDF

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Publication number
CN107663783B
CN107663783B CN201710845360.5A CN201710845360A CN107663783B CN 107663783 B CN107663783 B CN 107663783B CN 201710845360 A CN201710845360 A CN 201710845360A CN 107663783 B CN107663783 B CN 107663783B
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roller
cooling
woven fabric
rotating
hot melt
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CN107663783A (en
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叶书怀
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Jiangsu Hehe New Material Co ltd
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Jiangsu Hehe New Material Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04—Homopolymers or copolymers of ethene
    • C09J123/08—Copolymers of ethene
    • C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C09J123/0853—Vinylacetate
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042—Acrylic polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • 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
    • 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
    • D06N2209/1642—Hardnes
    • 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
    • D06N2209/1664—Releasability

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a non-woven fabric coated with hot melt adhesive and a hot-melt adhesive process of the non-woven fabric, wherein the surface of the non-woven fabric is coated with the hot melt adhesive, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 50-60 parts of ethylene-vinyl acetate EVA; 30-60 parts of modified EVA; 15-20 parts of tackifying resin; 5-10 parts of a plasticizer; 0.1-5 parts of functional auxiliary agent; a hot glue process of non-woven fabric coated with hot melt glue comprises the following specific steps: (1) constructing low-temperature hot-melt adhesive film production equipment; (2) preparing EVA particles; (3) running production equipment on the non-woven fabric; (4) blanking EVA particles; (5) casting extrusion and pressing shaping; (6) and cooling and rolling. The invention has the following advantages: time and labor are saved, the environmental protection is improved, the width of the hot melt adhesive film is ensured to exceed 2 meters, and the stability of the product and the thickness uniformity are improved.

Description

Non-woven fabric coated with hot melt adhesive and hot glue process of non-woven fabric
Technical Field
The invention belongs to the field of hot glue of non-woven fabrics and wall cloth, and particularly relates to a non-woven fabric coated with hot melt glue and a hot glue process of the non-woven fabric.
Background
The hot glue field of non-woven fabrics and wall cloth receives people's attention more and more, laminates with liquid glue between current non-woven fabrics and the wall cloth, brushes one deck liquid glue on the surface of non-woven fabrics promptly, pastes one deck hot melt adhesive again on the non-woven fabrics, goes up the wall through the iron heating, and this kind of hot glue technology has following shortcoming: 1. liquid glue is used between the non-woven fabric and the wall cloth, peculiar smell is easily generated during heating, the environment friendliness is poor, the viscosity is low, and the liquid glue is easy to permeate into the wall cloth through the non-woven fabric, so that glue shortage is caused between the non-woven fabric and the wall cloth; 2. when the non-woven fabric and the wall cloth are subjected to hot glue processing, the brushing of the liquid glue consumes time and labor, meanwhile, the rapid processing cannot be realized, the time and the quality cannot be controlled and guaranteed, and the brushing of the liquid glue is not easy to store and increases the accumulation of the stock; 3. the traditional one deck hot melt adhesive that pastes on the non-woven fabrics adopts the high temperature melting case, makes through coating process, and coating process is for covering the hot melt adhesive film raw materials with the plastics thin layer on the base cloth with liquid form, and the hot melt adhesive film breadth that this kind of production facility made can't exceed 2 meters, and thickness degree of consistency is low, product poor stability.
Disclosure of Invention
The invention aims to provide the non-woven fabric coated with the hot melt adhesive and the hot-melt adhesive process thereof, aiming at the defects of the prior art, wherein the non-woven fabric is time-saving and labor-saving, improves the environmental protection property, ensures that the width of the hot melt adhesive film exceeds 2 meters, and improves the product stability and the thickness uniformity precision.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a non-woven fabrics of coating hot melt adhesive, non-woven fabrics surface subsides have the hot melt adhesive, and the raw materials of hot melt adhesive is the EVA particle, the EVA particle includes the component of following part by weight: 50-60 parts of ethylene-vinyl acetate EVA; 30-60 parts of modified EVA; 15-20 parts of tackifying resin; 5-10 parts of a plasticizer; 0.1-5 parts of functional additive.
Further, the tackifying resin is terpene resin or petroleum resin.
A hot glue process of non-woven fabric coated with hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: the low-temperature hot-melt adhesive film production equipment comprises
The unwinding mechanism comprises an unwinding support, a rotating disc arranged above the unwinding support and unwinding rollers arranged on the rotating disc from left to right, non-woven fabrics are wound on the unwinding rollers, a first rotating roller, a second rotating roller and a third rotating roller are arranged at the lower side of the unwinding support, and the non-woven fabrics are sequentially wound on the first rotating roller, the second rotating roller and the third rotating roller;
the sizing and pressing mechanism comprises a sizing and pressing support, a sizing roller, a pressing roller and a cooling rubber roller, wherein the sizing roller, the pressing roller and the cooling rubber roller are arranged on the sizing and pressing support, the diameters of the sizing roller, the pressing roller and the cooling rubber roller are gradually smaller from left to right, the cooling rubber roller is arranged close to the unwinding mechanism, and meanwhile, non-woven fabrics sequentially wound on the first rotating roller, the second rotating roller and the third rotating roller are respectively wound on the cooling rubber roller, the pressing roller and the sizing roller;
a raw material extruding mechanism, the raw material extruding mechanism comprises an extruding support, a motor arranged on the extruding support, a screw rod connected with the motor and transversely arranged, a raw material feeding barrel arranged at one end of the screw rod close to the motor, the raw material feeding barrel is vertically arranged, the outside of the screw rod is of a spiral structure, a cooling pipe a is arranged inside the screw rod, the extending direction of the cooling pipe a is consistent with the extending direction of the screw rod, the cooling pipe a is arranged at the central position inside the screw rod, the length of the cooling pipe a is smaller than that of the screw rod, one end of the screw rod is connected with the motor, the other end of the screw rod is provided with an extruder, the outlet end of the extruder is close to the position between a sizing roller and a pressing roller, the raw material in the raw material feeding barrel is rotated to the extruder through the screw rod and extruded to a non-woven fabric, and is pressed through the sizing roller;
the cooling mechanism comprises a cooling support, and a first cooling roller, a second cooling roller, a third cooling roller, a fourth cooling roller, a fifth cooling roller and a sixth cooling roller which are arranged in the cooling support from left to right in sequence, wherein the first cooling roller, the second cooling roller and the third cooling roller are sequentially arranged in a vertically staggered manner, the fourth cooling roller, the fifth cooling roller and the sixth cooling roller are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials pressed on the non-woven fabric by the shaping rollers are sequentially cooled by the first cooling roller, the second cooling roller, the third cooling roller, the fourth cooling roller, the fifth cooling roller and the sixth cooling roller;
the winding mechanism comprises a winding support, a fourth rotating roller, a fifth rotating roller, a sixth rotating roller, a cutter and a winding roller, wherein the fourth rotating roller, the fifth rotating roller, the sixth rotating roller, the cutter and the winding roller are arranged in the winding support;
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 50-60 parts of ethylene-vinyl acetate EVA, 30-60 parts of modified EVA, 15-20 parts of tackifying resin, 5-10 parts of plasticizer and 0.1-5 parts of functional auxiliary agent, putting the mixture into a stirrer, stirring and mixing the mixture, putting the mixture into a granulator for granulation, and drying the granules after the granulation is finished to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving non-woven fabrics on an unwinding roller, a first rotating roller, a second rotating roller, a third rotating roller, a shaping roller, a pressing roller, a cooling rubber roller, a first cooling roller, a second cooling roller, a third cooling roller, a fourth cooling roller, a fifth cooling roller, a sixth cooling roller, a fourth rotating roller, a fifth rotating roller, a sixth rotating roller and a winding roller of low-temperature hot-melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material barrel, driving a screw rod to rotate by a motor, and enabling the EVA particles to enter an extruder in a flowing state along with the rotation of the screw rod;
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to a non-woven fabric between a shaping roller and a pressing roller by an extruder, and pressing and shaping the EVA particles by the shaping roller, wherein the pressing time of the pressing roller is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric coated with the hot melt adhesive is sequentially cooled by a first cooling roller, a second cooling roller, a third cooling roller, a fourth cooling roller, a fifth cooling roller and a sixth cooling roller, the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric coated with the hot melt adhesive is rolled by a fourth rotating roller, a fifth rotating roller, a sixth rotating roller and a wind-up roller to obtain the non-woven fabric coated with the hot melt adhesive.
Further, the length of the cooling pipe a in the step (1) is 10% -20% of the length of the screw rod.
Furthermore, a connecting roller is arranged at the position, close to one side of the shaping roller and far away from the pressing roller, of the shaping pressing support in the step (1).
A hot glue process for non-woven fabric and wall cloth coated with hot melt glue comprises the following specific steps: and (3) heating the surface, containing the hot melt adhesive, of the non-woven fabric coated with the hot melt adhesive by a hot-pressing machine at the temperature of less than or equal to 120 ℃, and then bonding the non-woven fabric with wall cloth.
The invention has the following beneficial effects:
1. the surface of the non-woven fabric is adhered with the hot melt adhesive, the raw material of the hot melt adhesive is EVA particles, the hot melt adhesive process of the traditional liquid glue is changed, the time and labor are saved, no peculiar smell is generated, the environmental protection is improved, meanwhile, the EVA particles comprise 50-60 parts of ethylene-vinyl acetate EVA, 30-60 parts of modified EVA, 15-20 parts of tackifying resin, 5-10 parts of plasticizer and 0.1-5 parts of functional auxiliary agent, the hot melt adhesive can be adhered to the surface of the non-woven fabric after being pressed and shaped, the viscosity of the hot melt adhesive is kept in a moderate range, the situation that the viscosity of the hot melt adhesive is too low, the hot melt adhesive easily penetrates through the non-woven fabric and permeates into the wall cloth is avoided, the adhesion between the non-woven fabric and the wall cloth is reduced, the situation that the viscosity of the hot melt adhesive is too high and is solidified sufficiently, and the hot melt adhesive needs to be heated for a long time when being adhered to the wall cloth, therefore, the content of the EVA particles in the formula ensures that the hot melt adhesive is arranged at the zero boundary point of liquid and the solid, and the hot melt adhesive are kept at a moderate viscosity when being adhered to the non-woven fabric, is convenient for later storage and collection.
2. The tackifying resin is terpene resin or petroleum resin, and the terpene resin or petroleum resin has the advantages of low odor, high hardness, high adhesive force, oxidation resistance and good thermal stability.
3. The non-woven fabric process for coating the hot melt adhesive has simple process steps, adopts low-temperature hot melt adhesive film production equipment, keeps proper viscosity of the hot melt adhesive when the hot melt adhesive is coated with the non-woven fabric through the specific process steps of low-temperature extrusion, press coating shaping and cooling rolling, changes the production steps of the traditional melting box coating process, uses a low-temperature extrusion casting method to expand the width of the hot melt adhesive film and ensure that the width of the hot melt adhesive film exceeds 2 meters, the low-temperature extrusion casting method of the invention drives a screw rod through a motor, the spiral structure on the outer surface of the screw rod enables the raw material in a barrel to be pushed towards an extruder, the hot melt adhesive film raw material is cooled through a cooling pipe a in the screw rod, the hot melt adhesive film raw material is melted into a non-liquid flowing state along with the rotation of the screw rod and the higher temperature is close to the extruder, and the hot melt adhesive film raw material is extruded onto the non-woven fabric through the extruder, and then the whole production process of the hot melt adhesive film is finished by shaping and covering through a shaping roller and cooling and rolling in sequence, so that the stability of the hot melt adhesive film product and the precision of the thickness uniformity are improved.
4. The length of cooling tube a is 10% -20% of the length of screw rod, the length of cooling tube a should not be overlength, the length overlength of cooling tube a, then hot melt adhesive film raw materials can't be the mobile state, just can't high-efficient extrude from the extruder fast, when cooling tube a length is too short or even do not have cooling tube a, hot melt adhesive film increases along with the rotation temperature of screw rod gradually, hot melt adhesive film raw materials is because the high-temperature becomes the liquid state when extruding from the extruder, lie in the pressure of non-woven fabrics and cover the in-process, can't stereotype, and glue easily on each roller, lead to the unable normal operating work of whole production facility, consequently, the length of cooling tube a is the optimum design length for 10% -20% of the length of screw rod.
5. The connecting rod plays the effect of tensioning between unwinding mechanism and design pressure cover mechanism, improves the stationarity of non-woven fabrics, prevents to crumple, improves the planarization that the hot melt adhesive membrane pasted, the precision of thickness degree of consistency.
6. A hot-melt adhesive coating process for non-woven fabrics and wall cloth comprises the steps of heating the non-woven fabrics with hot-melt adhesive on the surface of the non-woven fabrics with the hot-melt adhesive by a hot-pressing machine, wherein the temperature is less than or equal to 120 ℃, and then bonding the non-woven fabrics with the wall cloth, so that the non-woven fabrics are prevented from being too high in temperature, the hot-melt adhesive is liquefied and easily overflows from the non-woven fabrics, and the degumming phenomenon is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a low-temperature hot-melt adhesive film production apparatus with expanded width according to the present invention.
FIG. 2 is a schematic structural diagram of a screw of the low-temperature hot-melt adhesive film production apparatus with enlarged width according to the present invention.
Reference numbers in the figures: 1-unreeling support, 2-rotating disc, 3-unreeling roller, 4-non-woven fabric, 5-first rotating roller, 6-second rotating roller, 7-third rotating roller, 8-sizing press-coating support, 9-sizing roller, 10-press-coating roller, 11-cooling rubber roller, 12-extruding support, 13-motor, 14-screw, 15-raw material barrel, 16-cooling pipe a, 17-extruder, 18-cooling support, 19-first cooling roller, 20-second cooling roller, 21-third cooling roller, 22-fourth cooling roller, 23-fifth cooling roller, 24-sixth cooling roller, 25-reeling support, 26-fourth rotating roller, 27-fifth rotating roller, 28-sixth rotating roller, 29-cutter, 30-wind-up roll, 31-connecting roll.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The non-woven fabric coated with the hot melt adhesive is coated with the hot melt adhesive on the surface, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 50-60 parts of ethylene-vinyl acetate EVA; 30-60 parts of modified EVA; 15-20 parts of tackifying resin; 5-10 parts of a plasticizer; 0.1-5 parts of functional additive.
Wherein, the tackifying resin is terpene resin or petroleum resin, and the terpene resin or the petroleum resin has the advantages of low odor, high hardness, high adhesive force, oxidation resistance and good thermal stability.
A hot glue process of non-woven fabric coated with hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: as shown in FIG. 1 and FIG. 2, the low-temperature hot-melt adhesive film production equipment comprises
The unwinding mechanism comprises an unwinding support 1, a rotating disc 2 arranged above the unwinding support 1 and unwinding rollers 3 arranged on the rotating disc 2 from left to right, non-woven fabrics 4 are wound on the unwinding rollers 3, a first rotating roller a5, a second rotating roller b6 and a third rotating roller c7 are arranged at the lower side of the unwinding support 1, and the non-woven fabrics 4 are sequentially wound on the first rotating roller a5, the second rotating roller b6 and the third rotating roller c 7;
the shaping and pressing mechanism comprises a shaping and pressing support 8, a shaping roller 9, a pressing roller 10 and a cooling rubber roller 11, wherein the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are arranged on the shaping and pressing support 8, the diameters of the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are gradually smaller from left to right, the cooling rubber roller 11 is arranged close to the unwinding mechanism, and meanwhile, the non-woven fabric 4 sequentially wound around the first rotating roller a5, the second rotating roller b6 and the third rotating roller c7 is respectively wound around the cooling rubber roller 11, the pressing roller 10 and the shaping roller 9;
a raw material extruding mechanism, which comprises an extruding bracket 12, a motor 13 arranged on the extruding bracket 12, a screw 14 connected with the motor 13 and transversely arranged, and a raw material feeding barrel 15 arranged at one end of the screw 14 close to the motor 13, wherein the raw material feeding barrel 15 is vertically arranged, the outer part of the screw 14 is of a spiral structure, a cooling pipe a16 is arranged inside the screw 14, the extending direction of the cooling pipe a16 is consistent with the extending direction of the screw 14, the cooling pipe a16 is arranged at the central position inside the screw 14, the length of the cooling pipe a16 is smaller than that of the screw 14, one end of the screw 14 is connected with the motor 13, the other end of the screw is provided with an extruder 17, the outlet end of the extruder 17 is arranged close to the position between the sizing roller 9 and the pressing roller 10, and the raw material in the raw material feeding barrel 15 is rotated to the extruder 7 through the screw 14 and extruded to the non-woven fabric 4 and is pressed and covered by the sizing roller 9;
the cooling mechanism comprises a cooling bracket 18, and a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24 which are arranged in the cooling bracket 18 from left to right in sequence, wherein the first cooling roller a19, the second cooling roller b20 and the third cooling roller c21 are sequentially arranged in a vertically staggered manner, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f24 are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials coated on the non-woven fabric 4 by the sizing roller 9 are sequentially cooled by the first cooling roller a19, the second cooling roller b20, the third cooling roller c21, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f 24;
the winding mechanism comprises a winding support 25, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28, a cutter 29 and a winding roller 30, wherein the fourth rotating roller d26, the fifth rotating roller e27, the sixth rotating roller f28, the cutter 29 and the winding roller 30 are arranged in the winding support 25, the non-woven fabric 4 cooled by the cooling mechanism is cooled and flattened by the fourth rotating roller d26, the fifth rotating roller e27 and the sixth rotating roller f28 in sequence, and then is wound on the winding roller 30, and the cutter 29 is arranged between the winding roller 30 and the sixth rotating roller f 28;
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 50-60 parts of ethylene-vinyl acetate EVA, 30-60 parts of modified EVA, 15-20 parts of tackifying resin, 5-10 parts of plasticizer and 0.1-5 parts of functional auxiliary agent, putting the mixture into a stirrer, stirring and mixing the mixture, putting the mixture into a granulator for granulation, and drying the granules after the granulation is finished to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving the non-woven fabric on an unwinding roller 3, a first rotating roller a5, a second rotating roller b6, a third rotating roller c7, a sizing roller 9, a pressing roller 10, a cooling rubber roller 11, a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23, a sixth cooling roller f24, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a winding roller 30 of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel 15, driving a screw 14 to rotate by a motor 13, and feeding the EVA particles into an extruder 17 in a flowing state along with the rotation of the screw 14;
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric 4 between the shaping roller 9 and the pressing roller 10 by the extruder 17, and pressing and shaping the EVA particles by the shaping roller 9, wherein the pressing time of the pressing roller 10 is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric 4 coated with the hot melt adhesive is sequentially cooled by a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24, the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric coated with the hot melt adhesive is rolled by a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a rolling roller 30 to obtain the non-woven fabric coated with the hot melt adhesive.
In the step 1), the length of the cooling pipe a16 is 10% -20% of the length of the screw 14, the length of the cooling pipe a16 is not too long, and the length of the cooling pipe a16 is too long, so that the hot melt adhesive film raw material cannot be in a flowing state and cannot be efficiently and quickly extruded from the extruder 17, when the length of the cooling pipe a16 is too short or even does not have the cooling pipe a16, the hot melt adhesive film gradually increases along with the rotation temperature of the screw 14, and the hot melt adhesive film raw material is in a liquid state due to too high temperature when being extruded from the extruder 17, and cannot be shaped in the process of laminating the non-woven fabric, and is easily adhered to each roller, so that the whole production equipment cannot normally operate, and therefore, the length of the cooling pipe a16 is 10% -20% of the length of the screw 14, which is the optimal design length.
The position of the shaping pressing support close to one side of the shaping roller 9 and far away from the pressing roller 10 in the step 1) is provided with the connecting roller 31, the connecting roller 31 plays a tensioning role between the unwinding mechanism and the shaping pressing mechanism, the stability of the non-woven fabric is improved, the wrinkling is prevented, and the smoothness and thickness uniformity of the hot melt adhesive film is improved.
A hot glue process for non-woven fabric and wall cloth coated with hot melt glue comprises the following specific steps: the surface of the non-woven fabric with the hot melt adhesive is heated by a hot-pressing machine, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth, so that the phenomenon that the hot melt adhesive is liquefied and easily overflows from the non-woven fabric, and degumming is avoided.
Example 1
The non-woven fabric coated with the hot melt adhesive is coated with the hot melt adhesive on the surface, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 50 parts of ethylene-vinyl acetate EVA; 30 parts of modified EVA; 15 parts of tackifying resin; 5 parts of a plasticizer; 0.1 part of functional auxiliary agent.
A hot glue process of non-woven fabric coated with hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: as shown in FIG. 1 and FIG. 2, the low-temperature hot-melt adhesive film production equipment comprises
The unwinding mechanism comprises an unwinding support 1, a rotating disc 2 arranged above the unwinding support 1 and unwinding rollers 3 arranged on the rotating disc 2 from left to right, non-woven fabrics 4 are wound on the unwinding rollers 3, a first rotating roller a5, a second rotating roller b6 and a third rotating roller c7 are arranged at the lower side of the unwinding support 1, and the non-woven fabrics 4 are sequentially wound on the first rotating roller a5, the second rotating roller b6 and the third rotating roller c 7;
the shaping and pressing mechanism comprises a shaping and pressing support 8, a shaping roller 9, a pressing roller 10 and a cooling rubber roller 11, wherein the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are arranged on the shaping and pressing support 8, the diameters of the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are gradually smaller from left to right, the cooling rubber roller 11 is arranged close to the unwinding mechanism, and meanwhile, the non-woven fabric 4 sequentially wound around the first rotating roller a5, the second rotating roller b6 and the third rotating roller c7 is respectively wound around the cooling rubber roller 11, the pressing roller 10 and the shaping roller 9;
a raw material extruding mechanism, which comprises an extruding bracket 12, a motor 13 arranged on the extruding bracket 12, a screw 14 connected with the motor 13 and transversely arranged, and a raw material feeding barrel 15 arranged at one end of the screw 14 close to the motor 13, wherein the raw material feeding barrel 15 is vertically arranged, the outer part of the screw 14 is of a spiral structure, a cooling pipe a16 is arranged inside the screw 14, the extending direction of the cooling pipe a16 is consistent with the extending direction of the screw 14, the cooling pipe a16 is arranged at the central position inside the screw 14, the length of the cooling pipe a16 is smaller than that of the screw 14, one end of the screw 14 is connected with the motor 13, the other end of the screw is provided with an extruder 17, the outlet end of the extruder 17 is arranged close to the position between the sizing roller 9 and the pressing roller 10, and the raw material in the raw material feeding barrel 15 is rotated to the extruder 7 through the screw 14 and extruded to the non-woven fabric 4 and is pressed and covered by the sizing roller 9;
the cooling mechanism comprises a cooling bracket 18, and a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24 which are arranged in the cooling bracket 18 from left to right in sequence, wherein the first cooling roller a19, the second cooling roller b20 and the third cooling roller c21 are sequentially arranged in a vertically staggered manner, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f24 are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials coated on the non-woven fabric 4 by the sizing roller 9 are sequentially cooled by the first cooling roller a19, the second cooling roller b20, the third cooling roller c21, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f 24;
the winding mechanism comprises a winding support 25, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28, a cutter 29 and a winding roller 30, wherein the fourth rotating roller d26, the fifth rotating roller e27, the sixth rotating roller f28, the cutter 29 and the winding roller 30 are arranged in the winding support 25, the non-woven fabric 4 cooled by the cooling mechanism is cooled and flattened by the fourth rotating roller d26, the fifth rotating roller e27 and the sixth rotating roller f28 in sequence, and then is wound on the winding roller 30, and the cutter 29 is arranged between the winding roller 30 and the sixth rotating roller f 28;
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 50-60 parts of ethylene-vinyl acetate EVA, 30-60 parts of modified EVA, 15-20 parts of tackifying resin, 5-10 parts of plasticizer and 0.1-5 parts of functional auxiliary agent, putting the mixture into a stirrer, stirring and mixing the mixture, putting the mixture into a granulator for granulation, and drying the granules after the granulation is finished to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving the non-woven fabric on an unwinding roller 3, a first rotating roller a5, a second rotating roller b6, a third rotating roller c7, a sizing roller 9, a pressing roller 10, a cooling rubber roller 11, a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23, a sixth cooling roller f24, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a winding roller 30 of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel 15, driving a screw 14 to rotate by a motor 13, and feeding the EVA particles into an extruder 17 in a flowing state along with the rotation of the screw 14;
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric 4 between the shaping roller 9 and the pressing roller 10 by the extruder 17, and pressing and shaping the EVA particles by the shaping roller 9, wherein the pressing time of the pressing roller 10 is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric 4 coated with the hot melt adhesive is sequentially cooled by a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24, the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric coated with the hot melt adhesive is rolled by a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a rolling roller 30 to obtain the non-woven fabric coated with the hot melt adhesive.
A hot glue process for non-woven fabric and wall cloth coated with hot melt glue comprises the following specific steps: the surface of the non-woven fabric with the hot melt adhesive is heated by a hot-pressing machine, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth, so that the phenomenon that the hot melt adhesive is liquefied and easily overflows from the non-woven fabric, and degumming is avoided.
Example 2
The non-woven fabric coated with the hot melt adhesive is coated with the hot melt adhesive on the surface, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 60 parts of ethylene-vinyl acetate EVA; 60 parts of modified EVA; 20 parts of tackifying resin; 10 parts of a plasticizer; and 5 parts of a functional assistant.
A hot glue process of non-woven fabric coated with hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: as shown in FIG. 1 and FIG. 2, the low-temperature hot-melt adhesive film production equipment comprises
The unwinding mechanism comprises an unwinding support 1, a rotating disc 2 arranged above the unwinding support 1 and unwinding rollers 3 arranged on the rotating disc 2 from left to right, non-woven fabrics 4 are wound on the unwinding rollers 3, a first rotating roller a5, a second rotating roller b6 and a third rotating roller c7 are arranged at the lower side of the unwinding support 1, and the non-woven fabrics 4 are sequentially wound on the first rotating roller a5, the second rotating roller b6 and the third rotating roller c 7;
the shaping and pressing mechanism comprises a shaping and pressing support 8, a shaping roller 9, a pressing roller 10 and a cooling rubber roller 11, wherein the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are arranged on the shaping and pressing support 8, the diameters of the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are gradually smaller from left to right, the cooling rubber roller 11 is arranged close to the unwinding mechanism, and meanwhile, the non-woven fabric 4 sequentially wound around the first rotating roller a5, the second rotating roller b6 and the third rotating roller c7 is respectively wound around the cooling rubber roller 11, the pressing roller 10 and the shaping roller 9;
a raw material extruding mechanism, which comprises an extruding bracket 12, a motor 13 arranged on the extruding bracket 12, a screw 14 connected with the motor 13 and transversely arranged, and a raw material feeding barrel 15 arranged at one end of the screw 14 close to the motor 13, wherein the raw material feeding barrel 15 is vertically arranged, the outer part of the screw 14 is of a spiral structure, a cooling pipe a16 is arranged inside the screw 14, the extending direction of the cooling pipe a16 is consistent with the extending direction of the screw 14, the cooling pipe a16 is arranged at the central position inside the screw 14, the length of the cooling pipe a16 is smaller than that of the screw 14, one end of the screw 14 is connected with the motor 13, the other end of the screw is provided with an extruder 17, the outlet end of the extruder 17 is arranged close to the position between the sizing roller 9 and the pressing roller 10, and the raw material in the raw material feeding barrel 15 is rotated to the extruder 7 through the screw 14 and extruded to the non-woven fabric 4 and is pressed and covered by the sizing roller 9;
the cooling mechanism comprises a cooling bracket 18, and a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24 which are arranged in the cooling bracket 18 from left to right in sequence, wherein the first cooling roller a19, the second cooling roller b20 and the third cooling roller c21 are sequentially arranged in a vertically staggered manner, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f24 are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials coated on the non-woven fabric 4 by the sizing roller 9 are sequentially cooled by the first cooling roller a19, the second cooling roller b20, the third cooling roller c21, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f 24;
the winding mechanism comprises a winding support 25, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28, a cutter 29 and a winding roller 30, wherein the fourth rotating roller d26, the fifth rotating roller e27, the sixth rotating roller f28, the cutter 29 and the winding roller 30 are arranged in the winding support 25, the non-woven fabric 4 cooled by the cooling mechanism is cooled and flattened by the fourth rotating roller d26, the fifth rotating roller e27 and the sixth rotating roller f28 in sequence, and then is wound on the winding roller 30, and the cutter 29 is arranged between the winding roller 30 and the sixth rotating roller f 28;
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 50-60 parts of ethylene-vinyl acetate EVA, 30-60 parts of modified EVA, 15-20 parts of tackifying resin, 5-10 parts of plasticizer and 0.1-5 parts of functional auxiliary agent, putting the mixture into a stirrer, stirring and mixing the mixture, putting the mixture into a granulator for granulation, and drying the granules after the granulation is finished to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving the non-woven fabric on an unwinding roller 3, a first rotating roller a5, a second rotating roller b6, a third rotating roller c7, a sizing roller 9, a pressing roller 10, a cooling rubber roller 11, a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23, a sixth cooling roller f24, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a winding roller 30 of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel 15, driving a screw 14 to rotate by a motor 13, and feeding the EVA particles into an extruder 17 in a flowing state along with the rotation of the screw 14;
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric 4 between the shaping roller 9 and the pressing roller 10 by the extruder 17, and pressing and shaping the EVA particles by the shaping roller 9, wherein the pressing time of the pressing roller 10 is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric 4 coated with the hot melt adhesive is sequentially cooled by a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24, the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric coated with the hot melt adhesive is rolled by a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a rolling roller 30 to obtain the non-woven fabric coated with the hot melt adhesive.
A hot glue process for non-woven fabric and wall cloth coated with hot melt glue comprises the following specific steps: the surface of the non-woven fabric with the hot melt adhesive is heated by a hot-pressing machine, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth, so that the phenomenon that the hot melt adhesive is liquefied and easily overflows from the non-woven fabric, and degumming is avoided.
Example 3
The non-woven fabric coated with the hot melt adhesive is coated with the hot melt adhesive on the surface, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 55 parts of ethylene-vinyl acetate EVA; 45 parts of modified EVA; 18 parts of tackifying resin; 8 parts of a plasticizer; and 3 parts of a functional assistant.
A hot glue process of non-woven fabric coated with hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: as shown in FIG. 1 and FIG. 2, the low-temperature hot-melt adhesive film production equipment comprises
The unwinding mechanism comprises an unwinding support 1, a rotating disc 2 arranged above the unwinding support 1 and unwinding rollers 3 arranged on the rotating disc 2 from left to right, non-woven fabrics 4 are wound on the unwinding rollers 3, a first rotating roller a5, a second rotating roller b6 and a third rotating roller c7 are arranged at the lower side of the unwinding support 1, and the non-woven fabrics 4 are sequentially wound on the first rotating roller a5, the second rotating roller b6 and the third rotating roller c 7;
the shaping and pressing mechanism comprises a shaping and pressing support 8, a shaping roller 9, a pressing roller 10 and a cooling rubber roller 11, wherein the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are arranged on the shaping and pressing support 8, the diameters of the shaping roller 9, the pressing roller 10 and the cooling rubber roller 11 are gradually smaller from left to right, the cooling rubber roller 11 is arranged close to the unwinding mechanism, and meanwhile, the non-woven fabric 4 sequentially wound around the first rotating roller a5, the second rotating roller b6 and the third rotating roller c7 is respectively wound around the cooling rubber roller 11, the pressing roller 10 and the shaping roller 9;
a raw material extruding mechanism, which comprises an extruding bracket 12, a motor 13 arranged on the extruding bracket 12, a screw 14 connected with the motor 13 and transversely arranged, and a raw material feeding barrel 15 arranged at one end of the screw 14 close to the motor 13, wherein the raw material feeding barrel 15 is vertically arranged, the outer part of the screw 14 is of a spiral structure, a cooling pipe a16 is arranged inside the screw 14, the extending direction of the cooling pipe a16 is consistent with the extending direction of the screw 14, the cooling pipe a16 is arranged at the central position inside the screw 14, the length of the cooling pipe a16 is smaller than that of the screw 14, one end of the screw 14 is connected with the motor 13, the other end of the screw is provided with an extruder 17, the outlet end of the extruder 17 is arranged close to the position between the sizing roller 9 and the pressing roller 10, and the raw material in the raw material feeding barrel 15 is rotated to the extruder 7 through the screw 14 and extruded to the non-woven fabric 4 and is pressed and covered by the sizing roller 9;
the cooling mechanism comprises a cooling bracket 18, and a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24 which are arranged in the cooling bracket 18 from left to right in sequence, wherein the first cooling roller a19, the second cooling roller b20 and the third cooling roller c21 are sequentially arranged in a vertically staggered manner, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f24 are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials coated on the non-woven fabric 4 by the sizing roller 9 are sequentially cooled by the first cooling roller a19, the second cooling roller b20, the third cooling roller c21, the fourth cooling roller d22, the fifth cooling roller e23 and the sixth cooling roller f 24;
the winding mechanism comprises a winding support 25, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28, a cutter 29 and a winding roller 30, wherein the fourth rotating roller d26, the fifth rotating roller e27, the sixth rotating roller f28, the cutter 29 and the winding roller 30 are arranged in the winding support 25, the non-woven fabric 4 cooled by the cooling mechanism is cooled and flattened by the fourth rotating roller d26, the fifth rotating roller e27 and the sixth rotating roller f28 in sequence, and then is wound on the winding roller 30, and the cutter 29 is arranged between the winding roller 30 and the sixth rotating roller f 28;
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 50-60 parts of ethylene-vinyl acetate EVA, 30-60 parts of modified EVA, 15-20 parts of tackifying resin, 5-10 parts of plasticizer and 0.1-5 parts of functional auxiliary agent, putting the mixture into a stirrer, stirring and mixing the mixture, putting the mixture into a granulator for granulation, and drying the granules after the granulation is finished to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving the non-woven fabric on an unwinding roller 3, a first rotating roller a5, a second rotating roller b6, a third rotating roller c7, a sizing roller 9, a pressing roller 10, a cooling rubber roller 11, a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23, a sixth cooling roller f24, a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a winding roller 30 of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel 15, driving a screw 14 to rotate by a motor 13, and feeding the EVA particles into an extruder 17 in a flowing state along with the rotation of the screw 14;
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric 4 between the shaping roller 9 and the pressing roller 10 by the extruder 17, and pressing and shaping the EVA particles by the shaping roller 9, wherein the pressing time of the pressing roller 10 is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric 4 coated with the hot melt adhesive is sequentially cooled by a first cooling roller a19, a second cooling roller b20, a third cooling roller c21, a fourth cooling roller d22, a fifth cooling roller e23 and a sixth cooling roller f24, the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric coated with the hot melt adhesive is rolled by a fourth rotating roller d26, a fifth rotating roller e27, a sixth rotating roller f28 and a rolling roller 30 to obtain the non-woven fabric coated with the hot melt adhesive.
A hot glue process for non-woven fabric and wall cloth coated with hot melt glue comprises the following specific steps: the surface of the non-woven fabric with the hot melt adhesive is heated by a hot-pressing machine, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth, so that the phenomenon that the hot melt adhesive is liquefied and easily overflows from the non-woven fabric, and degumming is avoided.
The non-woven fabric coated with the hot melt adhesive and the hot-melt adhesive process of the non-woven fabric in the embodiments 1 to 3 are compared with the traditional liquid glue and the hot melt adhesive as follows:
Figure GDA0003411558360000201
as can be seen from the above table, examples 1, 2 and 3 are superior to conventional liquid glues and conventional hot melts in all aspects, while the softening point gradually decreases and the viscosity gradually increases with the increase of the ethylene-vinyl acetate, the modified EVA, the tackifying resin and the plasticizer, and example 3 is the best example.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. A hot glue process for non-woven fabric and wall cloth coated with hot melt glue is characterized by comprising the following specific steps: the surface of the non-woven fabric coated with the hot melt adhesive and containing the hot melt adhesive is hot-pressed by a hot-pressing machine to heat the non-woven fabric, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth;
the bonding state of the hot melt adhesive and the non-woven fabric is only sticking;
the bonding state of the non-woven fabric coated with the hot melt adhesive and the wall cloth is free from seepage;
the non-woven fabrics coated with the hot melt adhesive are coated with the hot melt adhesive on the surfaces of the non-woven fabrics, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 50 parts of ethylene-vinyl acetate EVA; 30 parts of modified EVA; 15 parts of tackifying resin; 5 parts of a plasticizer; 0.1 part of functional auxiliary agent;
the hot glue process of the non-woven fabric coated with the hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: the low-temperature hot melt adhesive film production equipment comprises:
the unwinding mechanism comprises an unwinding support (1), a rotating disc (2) arranged above the unwinding support (1), and unwinding rollers (3) arranged on the rotating disc (2) in a left-right mode, wherein non-woven fabrics (4) are wound on the unwinding rollers (3), a first rotating roller (a5), a second rotating roller (b6) and a third rotating roller (c7) are arranged at the lower side position of the unwinding support (1), and the non-woven fabrics (4) are sequentially wound on the first rotating roller (a5), the second rotating roller (b6) and the third rotating roller (c 7);
the sizing and pressing mechanism comprises a sizing and pressing support (8), a sizing roller (9), a pressing roller (10) and a cooling rubber roller (11) which are arranged on the sizing and pressing support (8), wherein the diameters of the sizing roller (9), the pressing roller (10) and the cooling rubber roller (11) are gradually smaller from left to right, the cooling rubber roller (11) is arranged close to the unreeling mechanism, and meanwhile, the non-woven fabric (4) which is sequentially wound around the first rotating roller (a5), the second rotating roller (b6) and the third rotating roller (c7) is respectively wound on the cooling rubber roller (11), the pressing roller (10) and the sizing roller (9);
a raw material extruding mechanism, the raw material extruding mechanism comprises an extruding support (12), a motor (13) arranged on the extruding support (12), a screw (14) connected with the motor (13) and transversely arranged, a raw material inlet barrel (15) arranged at one end of the screw (14) close to the motor (13), the raw material inlet barrel (15) is vertically arranged, the outside of the screw (14) is of a spiral structure, a cooling pipe (a16) is arranged inside the screw (14), the extending direction of the cooling pipe (a16) is consistent with the extending direction of the screw (14), the cooling pipe (a16) is arranged at the central position inside the screw (14), the length of the cooling pipe (a16) is smaller than that of the screw (14), one end of the screw (14) is connected with the motor (13), the other end of the screw is provided with an extruder (17), the outlet end of the extruder (17) is close to the positions between a sizing roller (9) and a pressing roller (10), the raw materials in the raw material barrel (15) are rotated to the extruder (7) through the screw (14) and extruded to the non-woven fabric (4), and are pressed and covered through the sizing roller (9);
the cooling mechanism comprises a cooling bracket (18), and a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23) and a sixth cooling roller (f24) which are arranged in the cooling bracket (18) from left to right in sequence, wherein the first cooling roller (a19), the second cooling roller (b20) and the third cooling roller (c21) are sequentially arranged in a vertically staggered manner, the fourth cooling roller (d22), the fifth cooling roller (e23) and the sixth cooling roller (f24) are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials pressed on the non-woven fabric (4) by the shaping roller (9) sequentially pass through the first cooling roller (a19), the second cooling roller (b20), the third cooling roller (c21), the fourth cooling roller (d22), the fifth cooling roller (e23) and the sixth cooling roller (f 24);
the winding mechanism comprises a winding support (25), a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28), a cutter (29) and a winding roller (30), wherein the fourth rotating roller (d26), the fifth rotating roller (e27), the sixth rotating roller (f28), the cutter (29) and the winding roller (30) are arranged in the winding support (25), the non-woven fabric (4) cooled by the cooling mechanism sequentially passes through the fourth rotating roller (d26), the fifth rotating roller (e27) and the sixth rotating roller (f28) to be cooled and flattened and then wound on the winding roller (30), and the cutter (29) is arranged between the winding roller (30) and the sixth rotating roller (f 28);
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 50 parts of ethylene-vinyl acetate EVA; 30 parts of modified EVA; 15 parts of tackifying resin; 5 parts of a plasticizer; 0.1 part of functional auxiliary agent is put into a stirrer to be stirred and mixed, then put into a granulator to be granulated, and dried after the granulation is finished, so as to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving non-woven fabrics on an unwinding roller (3), a first rotating roller (a5), a second rotating roller (b6), a third rotating roller (c7), a sizing roller (9), a pressing roller (10), a cooling rubber roller (11), a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23), a sixth cooling roller (f24), a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28) and a winding roller (30) of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel (15), driving a screw (14) to rotate by a motor (13), and feeding the EVA particles into an extruder (17) in a flowing state along with the rotation of the screw (14);
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric (4) between the shaping roller (9) and the pressing roller (10) by an extruder (17), and pressing and shaping by the shaping roller (9), wherein the pressing time of the pressing roller (10) is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric (4) coated with the hot melt adhesive is sequentially cooled by a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23) and a sixth cooling roller (f24), the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric is wound by a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28) and a winding roller (30), so that the non-woven fabric coated with the hot melt adhesive is obtained.
2. A hot glue process for non-woven fabric and wall cloth coated with hot melt glue is characterized by comprising the following specific steps: the surface of the non-woven fabric coated with the hot melt adhesive and containing the hot melt adhesive is hot-pressed by a hot-pressing machine to heat the non-woven fabric, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth;
the bonding state of the hot melt adhesive and the non-woven fabric is only sticking;
the bonding state of the non-woven fabric coated with the hot melt adhesive and the wall cloth is free from seepage;
the non-woven fabrics coated with the hot melt adhesive are coated with the hot melt adhesive on the surfaces of the non-woven fabrics, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 60 parts of ethylene-vinyl acetate EVA; 60 parts of modified EVA; 20 parts of tackifying resin; 10 parts of a plasticizer; 5 parts of a functional assistant;
the hot glue process of the non-woven fabric coated with the hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: the low-temperature hot melt adhesive film production equipment comprises:
the unwinding mechanism comprises an unwinding support (1), a rotating disc (2) arranged above the unwinding support (1), and unwinding rollers (3) arranged on the rotating disc (2) in a left-right mode, wherein non-woven fabrics (4) are wound on the unwinding rollers (3), a first rotating roller (a5), a second rotating roller (b6) and a third rotating roller (c7) are arranged at the lower side position of the unwinding support (1), and the non-woven fabrics (4) are sequentially wound on the first rotating roller (a5), the second rotating roller (b6) and the third rotating roller (c 7);
the sizing and pressing mechanism comprises a sizing and pressing support (8), a sizing roller (9), a pressing roller (10) and a cooling rubber roller (11) which are arranged on the sizing and pressing support (8), wherein the diameters of the sizing roller (9), the pressing roller (10) and the cooling rubber roller (11) are gradually smaller from left to right, the cooling rubber roller (11) is arranged close to the unreeling mechanism, and meanwhile, the non-woven fabric (4) which is sequentially wound around the first rotating roller (a5), the second rotating roller (b6) and the third rotating roller (c7) is respectively wound on the cooling rubber roller (11), the pressing roller (10) and the sizing roller (9);
a raw material extruding mechanism, the raw material extruding mechanism comprises an extruding support (12), a motor (13) arranged on the extruding support (12), a screw (14) connected with the motor (13) and transversely arranged, a raw material inlet barrel (15) arranged at one end of the screw (14) close to the motor (13), the raw material inlet barrel (15) is vertically arranged, the outside of the screw (14) is of a spiral structure, a cooling pipe (a16) is arranged inside the screw (14), the extending direction of the cooling pipe (a16) is consistent with the extending direction of the screw (14), the cooling pipe (a16) is arranged at the central position inside the screw (14), the length of the cooling pipe (a16) is smaller than that of the screw (14), one end of the screw (14) is connected with the motor (13), the other end of the screw is provided with an extruder (17), the outlet end of the extruder (17) is close to the positions between a sizing roller (9) and a pressing roller (10), the raw materials in the raw material barrel (15) are rotated to the extruder (7) through the screw (14) and extruded to the non-woven fabric (4), and are pressed and covered through the sizing roller (9);
the cooling mechanism comprises a cooling bracket (18), and a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23) and a sixth cooling roller (f24) which are arranged in the cooling bracket (18) from left to right in sequence, wherein the first cooling roller (a19), the second cooling roller (b20) and the third cooling roller (c21) are sequentially arranged in a vertically staggered manner, the fourth cooling roller (d22), the fifth cooling roller (e23) and the sixth cooling roller (f24) are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials pressed on the non-woven fabric (4) by the shaping roller (9) sequentially pass through the first cooling roller (a19), the second cooling roller (b20), the third cooling roller (c21), the fourth cooling roller (d22), the fifth cooling roller (e23) and the sixth cooling roller (f 24);
the winding mechanism comprises a winding support (25), a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28), a cutter (29) and a winding roller (30), wherein the fourth rotating roller (d26), the fifth rotating roller (e27), the sixth rotating roller (f28), the cutter (29) and the winding roller (30) are arranged in the winding support (25), the non-woven fabric (4) cooled by the cooling mechanism sequentially passes through the fourth rotating roller (d26), the fifth rotating roller (e27) and the sixth rotating roller (f28) to be cooled and flattened and then wound on the winding roller (30), and the cutter (29) is arranged between the winding roller (30) and the sixth rotating roller (f 28);
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 60 parts of ethylene-vinyl acetate EVA; 60 parts of modified EVA; 20 parts of tackifying resin; 10 parts of a plasticizer; 5 parts of functional auxiliary agent are put into a stirrer to be stirred and mixed, then put into a granulator to be granulated, and dried after the granulation is finished, so as to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving non-woven fabrics on an unwinding roller (3), a first rotating roller (a5), a second rotating roller (b6), a third rotating roller (c7), a sizing roller (9), a pressing roller (10), a cooling rubber roller (11), a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23), a sixth cooling roller (f24), a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28) and a winding roller (30) of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel (15), driving a screw (14) to rotate by a motor (13), and feeding the EVA particles into an extruder (17) in a flowing state along with the rotation of the screw (14);
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric (4) between the shaping roller (9) and the pressing roller (10) by an extruder (17), and pressing and shaping by the shaping roller (9), wherein the pressing time of the pressing roller (10) is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric (4) coated with the hot melt adhesive is sequentially cooled by a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23) and a sixth cooling roller (f24), the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric is wound by a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28) and a winding roller (30), so that the non-woven fabric coated with the hot melt adhesive is obtained.
3. A hot glue process for non-woven fabric and wall cloth coated with hot melt glue is characterized by comprising the following specific steps: the surface of the non-woven fabric coated with the hot melt adhesive and containing the hot melt adhesive is hot-pressed by a hot-pressing machine to heat the non-woven fabric, the temperature is less than or equal to 120 ℃, and then the non-woven fabric is bonded with the wall cloth;
the bonding state of the hot melt adhesive and the non-woven fabric is only sticking;
the bonding state of the non-woven fabric coated with the hot melt adhesive and the wall cloth is free from seepage;
the non-woven fabrics coated with the hot melt adhesive are coated with the hot melt adhesive on the surfaces of the non-woven fabrics, the raw material of the hot melt adhesive is EVA particles, and the EVA particles comprise the following components in parts by weight: 55 parts of ethylene-vinyl acetate EVA; 45 parts of modified EVA; 18 parts of tackifying resin; 8 parts of a plasticizer; 3 parts of a functional assistant;
the hot glue process of the non-woven fabric coated with the hot melt glue comprises the following specific steps:
1) and constructing low-temperature hot melt adhesive film production equipment: the low-temperature hot melt adhesive film production equipment comprises:
the unwinding mechanism comprises an unwinding support (1), a rotating disc (2) arranged above the unwinding support (1), and unwinding rollers (3) arranged on the rotating disc (2) in a left-right mode, wherein non-woven fabrics (4) are wound on the unwinding rollers (3), a first rotating roller (a5), a second rotating roller (b6) and a third rotating roller (c7) are arranged at the lower side position of the unwinding support (1), and the non-woven fabrics (4) are sequentially wound on the first rotating roller (a5), the second rotating roller (b6) and the third rotating roller (c 7);
the sizing and pressing mechanism comprises a sizing and pressing support (8), a sizing roller (9), a pressing roller (10) and a cooling rubber roller (11) which are arranged on the sizing and pressing support (8), wherein the diameters of the sizing roller (9), the pressing roller (10) and the cooling rubber roller (11) are gradually smaller from left to right, the cooling rubber roller (11) is arranged close to the unreeling mechanism, and meanwhile, the non-woven fabric (4) which is sequentially wound around the first rotating roller (a5), the second rotating roller (b6) and the third rotating roller (c7) is respectively wound on the cooling rubber roller (11), the pressing roller (10) and the sizing roller (9);
a raw material extruding mechanism, the raw material extruding mechanism comprises an extruding support (12), a motor (13) arranged on the extruding support (12), a screw (14) connected with the motor (13) and transversely arranged, a raw material inlet barrel (15) arranged at one end of the screw (14) close to the motor (13), the raw material inlet barrel (15) is vertically arranged, the outside of the screw (14) is of a spiral structure, a cooling pipe (a16) is arranged inside the screw (14), the extending direction of the cooling pipe (a16) is consistent with the extending direction of the screw (14), the cooling pipe (a16) is arranged at the central position inside the screw (14), the length of the cooling pipe (a16) is smaller than that of the screw (14), one end of the screw (14) is connected with the motor (13), the other end of the screw is provided with an extruder (17), the outlet end of the extruder (17) is close to the positions between a sizing roller (9) and a pressing roller (10), the raw materials in the raw material barrel (15) are rotated to the extruder (7) through the screw (14) and extruded to the non-woven fabric (4), and are pressed and covered through the sizing roller (9);
the cooling mechanism comprises a cooling bracket (18), and a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23) and a sixth cooling roller (f24) which are arranged in the cooling bracket (18) from left to right in sequence, wherein the first cooling roller (a19), the second cooling roller (b20) and the third cooling roller (c21) are sequentially arranged in a vertically staggered manner, the fourth cooling roller (d22), the fifth cooling roller (e23) and the sixth cooling roller (f24) are sequentially arranged in a vertically staggered manner, and meanwhile, raw materials pressed on the non-woven fabric (4) by the shaping roller (9) sequentially pass through the first cooling roller (a19), the second cooling roller (b20), the third cooling roller (c21), the fourth cooling roller (d22), the fifth cooling roller (e23) and the sixth cooling roller (f 24);
the winding mechanism comprises a winding support (25), a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28), a cutter (29) and a winding roller (30), wherein the fourth rotating roller (d26), the fifth rotating roller (e27), the sixth rotating roller (f28), the cutter (29) and the winding roller (30) are arranged in the winding support (25), the non-woven fabric (4) cooled by the cooling mechanism sequentially passes through the fourth rotating roller (d26), the fifth rotating roller (e27) and the sixth rotating roller (f28) to be cooled and flattened and then wound on the winding roller (30), and the cutter (29) is arranged between the winding roller (30) and the sixth rotating roller (f 28);
2) and preparing EVA particles: the raw materials are matched according to the following proportion: 55 parts of ethylene-vinyl acetate EVA; 45 parts of modified EVA; 18 parts of tackifying resin; 8 parts of a plasticizer; 3 parts of functional auxiliary agent are put into a stirrer to be stirred and mixed, then put into a granulator to be granulated, and dried after the granulation is finished, so as to prepare EVA particles;
3) and the production equipment on the non-woven fabric operates: sequentially sleeving non-woven fabrics on an unwinding roller (3), a first rotating roller (a5), a second rotating roller (b6), a third rotating roller (c7), a sizing roller (9), a pressing roller (10), a cooling rubber roller (11), a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23), a sixth cooling roller (f24), a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28) and a winding roller (30) of low-temperature hot melt adhesive film production equipment;
4) feeding EVA particles: putting the EVA particles prepared in the step 2) into a raw material feeding barrel (15), driving a screw (14) to rotate by a motor (13), and feeding the EVA particles into an extruder (17) in a flowing state along with the rotation of the screw (14);
5) casting extrusion and pressing shaping: extruding the EVA particles in a flowing state to the non-woven fabric (4) between the shaping roller (9) and the pressing roller (10) by an extruder (17), and pressing and shaping by the shaping roller (9), wherein the pressing time of the pressing roller (10) is less than or equal to 30 s;
6) and cooling and rolling: the non-woven fabric (4) coated with the hot melt adhesive is sequentially cooled by a first cooling roller (a19), a second cooling roller (b20), a third cooling roller (c21), a fourth cooling roller (d22), a fifth cooling roller (e23) and a sixth cooling roller (f24), the cooling temperature is less than or equal to 100 ℃, and the non-woven fabric is wound by a fourth rotating roller (d26), a fifth rotating roller (e27), a sixth rotating roller (f28) and a winding roller (30), so that the non-woven fabric coated with the hot melt adhesive is obtained.
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