[go: up one dir, main page]

WO2019221370A1 - Feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur et son procédé de fabrication - Google Patents

Feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur et son procédé de fabrication Download PDF

Info

Publication number
WO2019221370A1
WO2019221370A1 PCT/KR2019/001917 KR2019001917W WO2019221370A1 WO 2019221370 A1 WO2019221370 A1 WO 2019221370A1 KR 2019001917 W KR2019001917 W KR 2019001917W WO 2019221370 A1 WO2019221370 A1 WO 2019221370A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
nonwoven fabric
vinyl acetate
acetate copolymer
ethylene vinyl
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2019/001917
Other languages
English (en)
Korean (ko)
Inventor
나용일
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2019221370A1 publication Critical patent/WO2019221370A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • 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
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • B32B2509/00—Household appliances
    • B32B2509/10—Refrigerators or refrigerating equipment

Definitions

  • the present invention relates to a nonwoven laminated sheet attached to an inner surface of a door outer plate for a refrigerator and a method of manufacturing the same.
  • the refrigerator is to store the things that need to be stored at a low temperature, the cold air is injected into the inside and the refrigerator itself prevents the loss of cold air through the insulation.
  • Insulation applied to the refrigerator is applied to the case or panel having a space and foamed while injecting a foam insulation (mainly foamed urethane foam) to fill the space is cured to apply a heat insulating material.
  • the door for a refrigerator has a door outer plate which forms the exterior of the door, and a door inner plate which is arranged with a filling section of urethane foam from the door outer plate.
  • the door outer plate and the door inner plate are made of a thin iron plate in consideration of the weight of the door.
  • a nonwoven fabric having a cushioning effect is provided on the inner surface of the door shell so that the door shell forming the exterior of the refrigerator is not deformed by the foaming pressure.
  • Nonwoven fabric refers to sheet-like fabrics that are bonded to each other by appropriately arranging the fibers using adhesive or the adhesion of the fibers themselves or the entanglement of the fibers. These nonwoven fabrics are light, breathable and warm, and the cutting parts are not loosened. It is used as a disposable cloth for materials, building materials, realistic clothing, surgical clothing, lab clothes, or other disposable products. This nonwoven fabric may be used alone or in combination with other materials by utilizing the characteristics of the nonwoven fabric.
  • non-woven fabrics used in the refrigerator door manufacturing is generally produced by bonding paper to one side of the non-woven fabric with an adhesive, applying an adhesive to the other side and then releasing the release paper.
  • the reason why the paper is attached to the nonwoven fabric is to prevent the nonwoven fabric from being damaged by the chemical action of the urethane foam during foam filling of the urethane foam.
  • Synthetic rubber adhesive must be used as an adhesive for attaching paper to one side of the nonwoven fabric, which not only causes an unpleasant odor, but also has a problem such as volatile organic substances (VOC) volatilized to discharge substances harmful to the human body.
  • VOC volatile organic substances
  • the paper used for manufacturing the nonwoven fabric is required for strong durability, kraft paper is mainly used, there is a problem that the production cost of the nonwoven fabric is increased due to the high price of the kraft paper.
  • Patent Document 1 Korean Patent Publication No. 10-2017-0046618
  • Patent Document 2 Republic of Korea Patent Registration No. 10-1809058
  • An object of the present invention is a nonwoven laminated sheet attached to an inner surface of a door outer plate for a refrigerator, comprising: a polyethylene or polyethylene terephthalate film layer; A first adhesive layer coated with an ethylene vinyl acetate copolymer (EVA); Nonwoven layer; And a second adhesive layer; to provide a non-woven laminated sheet laminated in this order.
  • EVA ethylene vinyl acetate copolymer
  • Another object of the present invention is to provide a method for producing the nonwoven fabric laminated sheet.
  • the present invention is a non-woven laminated sheet attached to the inner surface of the door outer plate for the refrigerator, polyethylene or polyethylene terephthalate film layer; A first adhesive layer coated with an ethylene vinyl acetate copolymer (EVA); a nonwoven layer; And a second adhesive layer; provides a non-woven laminated sheet laminated in this order.
  • EVA ethylene vinyl acetate copolymer
  • nonwoven fabric laminated sheet may be one in which a release paper is additionally laminated to the second adhesive layer.
  • the second adhesive layer may be an ethylene vinyl acetate copolymer (EVA) film.
  • EVA ethylene vinyl acetate copolymer
  • the film layer may have a thickness of 5 to 40 ⁇ m.
  • the first adhesive layer may have a surface density of 10 to 35 g / m 2 .
  • the nonwoven layer may have a thickness of 2 to 10mm.
  • the exposed surface of the ethylene vinyl acetate copolymer film of the manufactured nonwoven fabric laminated sheet including the refrigerator It provides a method of manufacturing a door outer plate for a refrigerator comprising the step of thermally bonding the inner surface of the door outer plate.
  • the present invention replaces the paper and synthetic rubber adhesive used in the existing nonwoven fabric with polyethylene or polyethylene terephthalate film and ethylene vinyl acetate copolymer (EVA) adhesive, so that no unpleasant odor occurs, It has the effect of not being released.
  • EVA ethylene vinyl acetate copolymer
  • FIG. 1 is a cross-sectional view of a nonwoven laminate sheet produced by the present invention.
  • FIG. 2 is a cross-sectional view of another nonwoven laminate sheet produced by the present invention.
  • Figure 3 is an illustration of a device for producing a nonwoven laminate sheet of the present invention.
  • Figure 4 is an illustration of another apparatus for producing a nonwoven laminate sheet of the present invention.
  • the present invention provides a nonwoven fabric laminated sheet attached to an inner surface of a door outer plate for a refrigerator, comprising: a polyethylene or polyethylene terephthalate film layer (1); A first adhesive layer 2 coated with an ethylene vinyl acetate copolymer (EVA); Nonwoven fabric layer 3; And a second adhesive layer (4); provides a non-woven laminated sheet laminated in this order.
  • a polyethylene or polyethylene terephthalate film layer (1) A first adhesive layer 2 coated with an ethylene vinyl acetate copolymer (EVA); Nonwoven fabric layer 3;
  • EVA ethylene vinyl acetate copolymer
  • Nonwoven fabric layer 3 Nonwoven fabric layer 3
  • a second adhesive layer (4) provides a non-woven laminated sheet laminated in this order.
  • Existing refrigerator foam non-woven laminated sheet is manufactured by bonding paper to non-woven fabric using synthetic rubber adhesive.It has an unpleasant odor due to the nature of synthetic rubber adhesive and volatilizes volatile organic materials, resulting in the release of harmful substances.
  • the present invention used an ethylene vinyl acetate copolymer (EVA), which is harmless to the human body, as an adhesive instead of a synthetic rubber adhesive, and a polyethylene or polyethylene terephthalate film that is well adhered with an ethylene vinyl acetate copolymer (EVA) adhesive instead of paper. .
  • EVA ethylene vinyl acetate copolymer
  • the non-woven fabric laminated sheet may be one in which the release paper 5 is additionally laminated to the second adhesive layer (4).
  • 1 is a cross-sectional view of the nonwoven laminated sheet, and after removing the release paper 5 of the nonwoven laminated sheet of FIG. 1 may be attached to the inner surface of the refrigerator door outer plate.
  • the second adhesive layer 4 may be an ethylene vinyl acetate copolymer (EVA) film (2).
  • EVA ethylene vinyl acetate copolymer
  • 2 is a cross-sectional view of the non-woven laminate sheet, the surface exposed by the ethylene vinyl acetate copolymer (EVA) film (2) of Figure 2 can be attached to the inner surface of the door outer plate for the refrigerator.
  • Ethylene vinyl acetate copolymer (EVA) films are made by copolymers of ethylene and vinyl acetate.
  • Ethylene vinyl acetate copolymer has a low melting point of 50 to 110 °C depending on the content of vinyl acetate and is used as a main component of the hot melt adhesive because of the properties such as adhesion, rigidity, flexibility.
  • the ethylene vinyl acetate copolymer (EVA) film 2 of the nonwoven laminated sheet is placed on the inner surface of the door outer plate of the refrigerator and heated to a temperature of 80 to 110 ° C using a hot air blower. You can easily bond by just Compared to the existing method of removing the release paper and then attaching the nonwoven fabric sheet, the nonwoven fabric sheet can be bonded only by applying heat, thereby simplifying the process and reducing the cost.
  • the film layer 1 may be characterized by having a thickness of 5 to 40 ⁇ m, preferably 15 to 20 ⁇ m thickness.
  • the thickness of the film layer is 5 ⁇ m If it is less than the film is too thin and there is a risk of breakage, if the thickness exceeds 40 ⁇ m undesired due to the economic loss of using a thick film.
  • the first adhesive layer 2 may be characterized in that it has a surface density of 10 to 35g / m 2 , preferably has a surface density of 20 to 25g / m 2 .
  • the nonwoven fabric layer 3 may be characterized in that it has a thickness of 2 to 10mm, preferably has a thickness of 3 to 5mm. If the thickness of the nonwoven fabric is less than 2 mm, the cushioning capacity is insufficient to protect the door of the refrigerator door. If the thickness of the nonwoven fabric exceeds 10 mm, the amount of foaming agent inside the door of the refrigerator decreases due to the thickness of the nonwoven fabric, thereby reducing the insulation effect of the refrigerator door. Undesirable due to the economic loss of using thick nonwovens.
  • the present invention comprises the steps of: thermally bonding an ethylene vinyl acetate copolymer (EVA) film having a melting point of 80 ° C to 110 ° C on a lower surface of a polyethylene or polyethylene terephthalate film layer; Thermally bonding a nonwoven fabric layer on a lower surface of the ethylene vinyl acetate copolymer film (EVA); Applying an adhesive on the lower surface of the nonwoven fabric layer; And attaching a release paper to the surface to which the pressure-sensitive adhesive is applied.
  • EVA ethylene vinyl acetate copolymer
  • FIG. 3 An example of a method of manufacturing a nonwoven fabric laminated sheet according to the present invention is shown in FIG. 3.
  • the example of FIG. 3 relates to a roll-to-roll process and is an example of a process of manufacturing the nonwoven laminate sheet shown in FIG. 1.
  • the polyethylene or polyethylene terephthalate film (1) and the ethylene vinyl acetate copolymer (EVA) film (2) are supplied while being unrolled on the feed roller (10).
  • the supplied polyethylene or polyethylene terephthalate film 1 and the ethylene vinyl acetate copolymer (EVA) film 2 are bonded while passing through the heating roller 20 and the adhesion roller 30 which rotate together.
  • the heating roller 20 has a heater built therein to generate heat at a temperature of 80 to 110 °C.
  • the nonwoven fabric 3 is supplied to the lower surface by the supply roller 10, and passes through the heating roller 20 and the adhesion roller 30, which also rotate together, and the ethylene vinyl acetate copolymer (EVA) film (2). It is adhered to the lower surface.
  • the release paper 5 is supplied by the feed roller 10 to adhere to the surface on which the pressure-sensitive adhesive 4 is applied.
  • the present invention comprises the steps of heat-bonding an ethylene vinyl acetate copolymer (EVA) film having a melting point of 80 °C to 110 °C on the lower surface of the polyethylene or polyethylene terephthalate film layer to prepare a first layer; Preparing a second layer by combining needle-punching an ethylene vinyl acetate copolymer (EVA) film having a melting point of 80 ° C. to 110 ° C. on the bottom surface of the nonwoven fabric layer and the nonwoven fabric layer; And laminating and thermally bonding the nonwoven layer of the second layer on the lower surface of the ethylene vinyl acetate copolymer (EVA) film of the first layer.
  • EVA ethylene vinyl acetate copolymer
  • FIG. 4 An example of a method for manufacturing a nonwoven fabric laminated sheet according to the present invention is shown in FIG. 4.
  • the example of FIG. 4 also relates to a roll-to-roll process and is an example of a process of manufacturing the nonwoven laminate sheet shown in FIG. 2.
  • the polyethylene or polyethylene terephthalate film (1) and the ethylene vinyl acetate copolymer (EVA) film (2) are supplied while being unrolled on the feed roller (10).
  • the supplied polyethylene or polyethylene terephthalate film (1) and the ethylene vinyl acetate copolymer (EVA) film (2) are bonded while passing through the heating roller (20) and the adhesion roller (30), which rotate together, to prepare a first layer.
  • the heating roller 20 has a heater built therein to generate heat at a temperature of 80 to 110 °C.
  • the nonwoven fabric layer 3 and the ethylene vinyl acetate copolymer (EVA) film 2 are supplied by the supply roller 10, and through the needle punching process 50, ethylene vinyl acetate air is applied to the lower surface of the nonwoven fabric 3
  • the coalescence (EVA) film 2 is bonded to form a second layer.
  • the first layer and the second layer pass through the heating roller and the contact roller, in which the ethylene vinyl acetate copolymer (EVA) film surface of the first layer is in contact with the nonwoven fabric layer of the second layer, Bonded by heat.
  • the heating roller 20 must be located only in the upper surface of the sheet, that is, the direction in which the polyethylene or polyethylene terephthalate film (1) is exposed, the ethylene vinyl acetate copolymer (EVA) film (2) located on the lower surface of the nonwoven fabric Heat must not be transferred.
  • the nonwoven fabric laminated sheet of FIG. 2 is completed.
  • the needle punching refers to a three-dimensional felt as a method of intertwining fibers in a web using a needle having a nose.
  • the desired result is obtained according to the number of punching and the punching density, the density of the needle, and the punching angle. You can get it.
  • EVA ethylene vinyl acetate copolymer
  • needle punching is performed from the nonwoven fabric toward the EVA film, and the punching density of the needle punching is 100 To 1000 times / cm 2 and preferably 400 to 500 times / cm 2.
  • the surface of the nonwoven fabric is not smooth, which makes it difficult to manufacture laminated sheets in the future. You will not.
  • the reason for bonding the nonwoven fabric layer and the ethylene vinyl acetate copolymer (EVA) film by needle punching is to apply heat to bond the finished nonwoven laminate sheet to the door shell, whereby the nonwoven layer and the ethylene vinyl acetate copolymer ( EVA) film to ensure a strong bond to prevent detachment.
  • the present invention comprises the steps of heat-bonding an ethylene vinyl acetate copolymer film having a melting point of 80 °C to 110 °C on the lower surface of the polyethylene or polyethylene terephthalate film layer to prepare a first layer; Bonding a ethylene vinyl acetate copolymer film having a melting point of 80 ° C. to 110 ° C. on the bottom surface of the nonwoven fabric layer and the nonwoven fabric layer by needle punching to prepare a second layer; And laminating and thermally bonding the nonwoven fabric layer of the second layer on the bottom surface of the ethylene vinyl acetate copolymer film of the first layer.
  • the exposed surface of the ethylene vinyl acetate copolymer film of the manufactured nonwoven fabric laminated sheet including the refrigerator It provides a method of manufacturing a door outer plate for a refrigerator comprising the step of thermally bonding the inner surface of the door outer plate.
  • the lower surface of the adhesive laminated sheet of FIG. 2, that is, the surface where the ethylene vinyl acetate copolymer (EVA) film is exposed, is placed on the door outer plate for a refrigerator, and heated to the door outer plate using a hot air blower, and the like to a temperature of 80 ° C to 110 ° C.
  • the door outer plate for a refrigerator can be manufactured by the simple process of heating up. As a result, the process of unnecessarily sticking and removing the release paper can be omitted. The cost can be reduced by the simplification of the process, and the time required for manufacturing the door shell is shortened.
  • a 165 mm ⁇ 165 mm nonwoven laminated sheet specimen was placed in a test chamber at 25 ° C. and a humidity of 50%, and the outlet air was collected at 7 days and the released TVOC content was measured.
  • Example 1-3 and the comparative example After attaching Example 1-3 and the comparative example to the door outer plate for a refrigerator, foamed urethane foam was produced to produce a door for the refrigerator, and the maximum value was described by measuring the amount of bending for each part of the completed door.
  • a first layer was prepared by thermally bonding an polyethylene film having a thickness of 18 ⁇ m to an EVA film as shown in FIG. 2.
  • the second layer was manufactured by combining a 5 mm thick nonwoven fabric and an EVA film by needle punching under a punching density of 400 times / cm 2.
  • the EVA film surface of the 1st layer and the nonwoven fabric surface of the 2nd layer were laminated
  • the TVOC test and the maximum bending measurement were tested and shown in Table 1 below.
  • the nonwoven fabric was prepared in the same manner as in Example 1 except that the nonwoven fabric was fabricated using a nonwoven fabric having a thickness of 1 mm.
  • the TVOC test and the maximum bending measurement were tested and shown in Table 1 below.
  • the nonwoven fabric was prepared in the same manner as in Example 1 except that the nonwoven fabric was fabricated using a 10 mm thick nonwoven fabric.
  • the TVOC test and the maximum bending measurement were tested and shown in Table 1 below.
  • a nonwoven fabric sheet was prepared by attaching kraft paper to one surface of a 5 mm thick nonwoven fabric using a synthetic rubber bond, and attaching a release paper to another surface using an acrylic adhesive.
  • the TVOC test and the maximum bending measurement were tested and shown in Table 1 below.
  • Example 1 Example 2
  • Example 3 Comparative example TVOC emission amount (mg / m2h) 0.00124 0.00122 0.00154 0.09546 Maximum bending amount measured value (mm) 0.03 0.12 0 0.01
  • Examples 1-3 showed a very low TVOC emission amount compared to Comparative Example, while the TVOC emission amount of Comparative Example was very high compared to Examples 1-3.
  • Example 1 As a result of measuring the maximum value of the bending amount actually measured value of a door exterior plate, it turns out that the value becomes small, so that the thickness of the nonwoven fabric used is large.
  • Example 1 and Comparative Example was manufactured using the same thickness non-woven fabric of the same 5mm, it can be seen that Example 1 has a larger maximum bending value measured value, which is the needle punching of the nonwoven fabric and EVA film It can be presumed that the nonwoven fabric is compressed in the process of joining and the buffering force is reduced.
  • Example 1 the amount of curvature measured in Example 1 is also not a problem as a very small value that does not cause a failure of the door shell for a refrigerator, and Example 3, which uses a thick nonwoven fabric having a thickness of 10 mm, has a smaller amount of curvature than the comparative example.
  • EVA Ethylene Vinyl Acetate Copolymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Refrigerator Housings (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur et son procédé de fabrication. La présente invention concerne une feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur, dans laquelle une couche de film de polyéthylène ou de polyéthylène téréphtalate ; une première couche adhésive revêtue d'un copolymère d'éthylène-acétate de vinyle (EVA) ; une couche de tissu non-tissé ; et une seconde couche sont stratifiées séquentiellement. Selon la présente invention, la présente invention remplace un film de polyéthylène ou de polyéthylène téréphtalate et un copolymère éthylène-acétate de vinyle (EVA) adhésif pour des adhésifs en papier et en caoutchouc synthétique utilisés conventionnellement dans des tissus non tissés, présentant ainsi l'avantage de ne pas générer d'odeur déplaisante et de ne pas émettre de matériau nocif. De plus, l'utilisation d'un film de polyéthylène ou de polyéthylène téréphtalate peu coûteux, au lieu d'un papier kraft onéreux, apporte l'avantage de réduire le coût de production des tissus. En outre, un processus de fixation et d'élimination d'une feuille de libération devient inutile et n'est donc pas nécessaire, de telle sorte que la présente invention simplifie la procédure et réduit le temps nécessaire pour fabriquer des portes de réfrigérateur.
PCT/KR2019/001917 2018-05-15 2019-02-18 Feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur et son procédé de fabrication Ceased WO2019221370A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0055224 2018-05-15
KR1020180055224A KR102114288B1 (ko) 2018-05-15 2018-05-15 냉장고용 도어외판의 내부면에 부착되는 부직포 적층시트 및 그 제조 방법

Publications (1)

Publication Number Publication Date
WO2019221370A1 true WO2019221370A1 (fr) 2019-11-21

Family

ID=68540538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/001917 Ceased WO2019221370A1 (fr) 2018-05-15 2019-02-18 Feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur et son procédé de fabrication

Country Status (2)

Country Link
KR (1) KR102114288B1 (fr)
WO (1) WO2019221370A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114736623A (zh) * 2021-01-07 2022-07-12 韩华道达尔有限公司 热层压膜

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102502397B1 (ko) 2022-02-24 2023-02-24 주식회사 보광산자 Ldpe 부직포 완충 시트 제조장치
KR102481499B1 (ko) * 2022-03-14 2022-12-26 주식회사 라크인더스트리 선재 코일용 포장재

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000318094A (ja) * 1999-05-06 2000-11-21 Dainippon Printing Co Ltd 通気性包装材
KR100841042B1 (ko) * 2007-07-20 2008-06-24 (주)메인일렉콤 부직포를 이용한 초박형 전도성 양면테이프의 제조방법 및그 제조방법에 의한 전도성 양면테이프
WO2014204245A2 (fr) * 2013-06-19 2014-12-24 주식회사 아모그린텍 Feuille isolante hybride et équipement électronique doté de cette dernière
KR20150060582A (ko) * 2013-11-26 2015-06-03 삼성전자주식회사 진공 단열재 및 이를 포함하는 냉장고
KR20170112760A (ko) * 2016-04-01 2017-10-12 영보화학 주식회사 기재의 부직포 점착 공정

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170046618A (ko) 2017-04-11 2017-05-02 주식회사 보광산자 종이가 일체된 복합부직포의 제조 방법 및 그 제조 방법으로 제조된 복합부직포

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000318094A (ja) * 1999-05-06 2000-11-21 Dainippon Printing Co Ltd 通気性包装材
KR100841042B1 (ko) * 2007-07-20 2008-06-24 (주)메인일렉콤 부직포를 이용한 초박형 전도성 양면테이프의 제조방법 및그 제조방법에 의한 전도성 양면테이프
WO2014204245A2 (fr) * 2013-06-19 2014-12-24 주식회사 아모그린텍 Feuille isolante hybride et équipement électronique doté de cette dernière
KR20150060582A (ko) * 2013-11-26 2015-06-03 삼성전자주식회사 진공 단열재 및 이를 포함하는 냉장고
KR20170112760A (ko) * 2016-04-01 2017-10-12 영보화학 주식회사 기재의 부직포 점착 공정

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114736623A (zh) * 2021-01-07 2022-07-12 韩华道达尔有限公司 热层压膜
CN114736623B (zh) * 2021-01-07 2024-01-26 韩华道达尔能源有限公司 热层压膜

Also Published As

Publication number Publication date
KR102114288B1 (ko) 2020-05-22
KR20190130742A (ko) 2019-11-25

Similar Documents

Publication Publication Date Title
WO2019221370A1 (fr) Feuille stratifiée de tissu non tissé destinée à être fixée à la surface interne d'un panneau externe de porte d'un réfrigérateur et son procédé de fabrication
US5848509A (en) Encapsulated insulation assembly
US20150216603A1 (en) Nonwoven fabric and polyurethane composite materials and methods for producing the same
KR20170140103A (ko) 성형체 및 그의 제조방법
WO2014061901A1 (fr) Film d'isolation thermique pour permettre un moulage à haute température, isolant thermique sous vide qui utilise ce dernier et procédé permettant de fabriquer un isolant thermique sous vide
CN107407097A (zh) 垂直铺网纤维地板
CN109501406A (zh) 汽车顶棚聚氨酯复合板材及其制备方法、汽车
JPH04220337A (ja) 医用目的の支持材料
WO2020091349A1 (fr) Membrane imperméable à l'eau et respirante pouvant être thermocollée, et son procédé de fabrication
JP2002046545A (ja) 車両用成形天井材及びその製造方法
JP3785315B2 (ja) 建築用内装材とその製造方法
WO2018151460A1 (fr) Support comprenant une couche adhésive et procédé de fabrication de support
JPH0948460A (ja) 粘着テープ
JPH09506016A (ja) 医療用接着テープに発泡コーティングを施すための方法
WO2014073792A1 (fr) Carreau de sol et procédé de fabrication
JP2004204604A (ja) 複合パネル及びその製造方法
US20060019562A1 (en) Water and stain repellent ''barrier'' substrate
EP4331832B1 (fr) Matériau multicouche pour isolation thermique
JPS58176866A (ja) 蓄電池用ガラスマツトの製造方法
JP3060660U (ja) 抗菌、防カビまたは防虫粘着性断熱シ―ト
JP2004115927A (ja) 壁紙
JP3008087B2 (ja) 断熱材用積層紙
US20060019563A1 (en) "Barrier" substrate
JP2001018242A (ja) 成形プレス用耐熱クッション材
WO2017213479A1 (fr) Corps moulé et son procédé de production

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: 19803574

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19803574

Country of ref document: EP

Kind code of ref document: A1