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WO2020091175A1 - 감성품질 향상을 위한 자동차 시트용 원단 합포방법 - Google Patents

감성품질 향상을 위한 자동차 시트용 원단 합포방법 Download PDF

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Publication number
WO2020091175A1
WO2020091175A1 PCT/KR2019/007146 KR2019007146W WO2020091175A1 WO 2020091175 A1 WO2020091175 A1 WO 2020091175A1 KR 2019007146 W KR2019007146 W KR 2019007146W WO 2020091175 A1 WO2020091175 A1 WO 2020091175A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
pattern
fabric
coating
line
Prior art date
Application number
PCT/KR2019/007146
Other languages
English (en)
French (fr)
Inventor
유광윤
한광덕
유진영
한윤대
오충식
권태완
Original Assignee
주식회사 유엠에스
대원산업 주식회사
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 주식회사 유엠에스, 대원산업 주식회사 filed Critical 주식회사 유엠에스
Publication of WO2020091175A1 publication Critical patent/WO2020091175A1/ko

Links

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
    • 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
    • B32B37/1284—Application of adhesive
    • B32B37/1292—Application of adhesive selectively, e.g. in stripes, in patterns
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • the present invention relates to a method for fabricating a car seat fabric for manufacturing a car seat by applying a liquid adhesive on one side of a foam member or fabric, and combining fabrics such as leather and fabric on the top surface.
  • cow leather used as leather for automobile seats has fine pores.
  • the technique of applying the adhesive in the form of a dot on one side of the fabric is disclosed, but this technique of applying the adhesive in the form of a dot is also used for automobiles.
  • the fabric is fabricated using cowhide used as leather for automobile seats.
  • the application method of the liquid adhesive is improved, thereby improving the breaking strength of adhesive members such as sponges, and softness of leather in surface adhesion.
  • adhesive members such as sponges, and softness of leather in surface adhesion.
  • the method for fabric bonding of fabrics for automobile seats using the liquid adhesive of the present invention which solves the above-mentioned problems is to apply a liquid adhesive on one side of the foam member or fabric, and supply fabrics such as leather fabric or crops to the side of the applied adhesive.
  • the liquid adhesive is coated using a pattern roller or pattern mask coating device, but the pattern of the adhesive applied by the pattern roller or pattern mask coating device has a constant length and width and a coating thickness in the length direction of the roller.
  • the first vertical adhesive coating line and the first horizontal adhesive coating line are repeated and arranged regularly.
  • the first horizontal adhesive coating line is formed by being coated so as to be positioned at the center of the first vertical adhesive coating line.
  • a second horizontal adhesive system foreline which is applied to be positioned in the center direction to the lower side of the first vertical adhesive system, and a second vertical adhesive system foreline formed by being applied under the first horizontal adhesive system foreline Repeatedly arranged regularly, the second coating line is formed so that the second horizontal adhesive system foreline is coated and positioned so as to be positioned at the center of the second vertical adhesive system foreline.
  • the second application line is alternated to form a repeat in the longitudinal direction of the foam member or the fabric.
  • the first horizontal adhesive agent foreline and the second horizontal adhesive agent foreline are characterized in that one end is formed to be partially overlapped when the coating layer is formed.
  • It is characterized by being formed to have a length, a width of 0.1 to 11 wave 11, and a thickness of 10 to 100 intentional fabric.
  • the first vertical adhesive system foreline and the first horizontal adhesive system foreline are characterized in that two or more lines can be viewed as an application line.
  • the application pattern of the adhesive is any one of the patterns shown below.
  • It is characterized by being formed by applying a pattern.
  • the pattern mask coating device comprises a cylindrical screen pattern coating plate
  • a liquid adhesive is installed on the inside of the cylindrical screen pattern coating plate.
  • the adhesive injection device head provided with the adhesive inlet to supply
  • an adhesive recovery means configured on one side or both sides of the adhesive injection hole and recovering the adhesive remaining on the cylindrical screen pattern coating plate after being sprayed by the adhesive injection hole; and located on the upper side of the adhesive injection device head, Includes a cleaning roller that is installed on the outer surface of the pattern coating plate;
  • the liquid phase adhesive is applied to the foam member or one side of the fabric by the pattern mask coating device to form a pattern.
  • the method of fabric fabrication of the present invention is designed to determine the breaking strength of adhesive members such as sponges.
  • FIG. 1 is a process diagram showing an embodiment of the fabric fabrication method of the present invention.
  • Figure 2 shows a fabric in the form of an adhesive coated according to an embodiment of the present invention
  • Fig. 3 shows a pattern of forming an adhesive agent that may be formed according to an embodiment of the present invention.
  • FIG. 4 is a process diagram showing another embodiment of the fabric fabrication method of the present invention.
  • FIG. 5 shows the 503 ⁇ 4 88 and peel strength of the composite fabric according to an embodiment of the present invention.
  • FIG. 1 is a process diagram showing an embodiment of the fabric fabrication method of the present invention
  • Figure 2 shows a photograph in the form of an adhesive applied according to an embodiment of the present invention
  • Figure 3 is the present invention
  • An adhesive agent formation pattern that can be formed according to an embodiment is illustrated
  • FIG. 4 is a process diagram showing another embodiment of the fabric synthesis method of the present invention
  • FIG. 5 is 80 ⁇ of the fabric fabric according to an embodiment of the present invention It shows the test method of 688 ⁇ peel strength and the test report showing the test result.
  • the present invention applies a liquid adhesive to one side of a foam member or fabric, and
  • the method of combining the fabric for a car seat using the liquid adhesive of the present invention is based on one surface of the base fabric 30 or one surface of the foam member.
  • the liquid adhesive 50 is coated using a pattern roller 60 or a pattern mask coating device 300.
  • the liquid adhesive 50 melts the thermoplastic adhesive in the form of particles into a liquid in the melting device 50 and supplies it to the pattern roller 60 at room temperature through an ejector.
  • the supplied liquid adhesive 50 is inserted into the pattern groove 62 formed by being engraved in the pattern roller 60 to be positioned, rotated according to the feed speed of the base fabric 30 or the pain member, and the pattern roller ( 60) while the coating roller 80 is positioned on the other side, and the base fabric or the pain member passes through the coating roller 80 and the pattern roller 60,
  • the liquid adhesive 50 is coated to have a certain pattern on the top surface of the base material fabric 30.
  • a raw material is supplied between the fixed roller 70 and the patterned roller 60, and the knife attached to the fixed roller 70 scrapes the surface of the coating roller 60 to coat the coated roller 60 ) In the intaglio portion only enters the liquid adhesive (50)
  • a structure in which the surface of the coating roller 60 is arranged in such a way that the liquid adhesive 50 is also applied to the foam member can also be used.
  • the pattern roller 60 is preferably heated to a predetermined temperature in order to prevent the provided liquid adhesive 50 from being hardened.
  • the first vertical adhesive with a pattern of adhesive applied by the roller having a certain length and width and a coating thickness in the longitudinal direction of the roller
  • the coating line (12) and the first horizontal adhesive coating line (14) are repeated and arranged regularly, and the first horizontal adhesive coating line (14) is coated and formed to be positioned at the center of the first vertical adhesive coating line (12).
  • the second vertical adhesive agent forming line (24) which is formed by being applied to the lower side, is repeated and arranged regularly, but the second horizontal adhesive agent forming line (22) is coated so as to be located at the center of the second vertical adhesive agent forming line (24).
  • the second coating line 20 formed by forming is formed, and the
  • the pattern of the coating form of the liquid adhesive is formed so that the first application line 10 and the second application line 20 are alternately crossed and formed repeatedly in the longitudinal direction of the foam member or the fabric.
  • the pressing roller By supplying the leather fabric 40 or foam member, it passes through the pressing rollers 42 and 14 to be combined. At this time, it is recommended that the pressing roller use a heating roller that maintains a predetermined temperature, so that the fabric is well-formed.
  • Unexplained drawing number 70 is a fixed roller and is attached to the pattern roller (60). 2020/091175 1 »(: 1 ⁇ 3 ⁇ 42019 / 007146 Liquid adhesive (50) to be fixed, to form a certain partial step (72)
  • the cutting portion 74 has a formed shape.
  • the fixed roller is in a fixed state without rotating, and the stepped portion 72 of the fixed roller is rotated to the pattern roller 60 while the pattern roller 60 rotates. It induces the liquid adhesive to be evenly drawn into the formed engraved pattern, and also on the surface other than the engraved pattern of the pattern roller 60.
  • the liquid adhesive 50 performs a function of not remaining.
  • the first horizontal adhesive coating line 14 and the second horizontal adhesive coating line 22 have one end ( ⁇ , w2) at the time of forming the coating layer. It is desirable to be coated so that they overlap so that if they come off without overlapping, the uncoated portion of the adhesive forms a certain line and is relatively weak compared to the applied portion when the load is applied. There is a problem that wrinkles are formed in the part.
  • the overlapping portion (0) at the one end is preferably applied to satisfy the range of 0.1 to 3111111.
  • the application line task 1 horizontal adhesive application line is 1 ⁇ 10_ And 10 ⁇ 100 ⁇
  • the coating thickness of the adhesive varies depending on the material to be adhered, and there is a disadvantage that the peel strength is significantly lower when it is less than 10 or 111, and 80 yo 11 ⁇ 288 of natural leather when exceeding 100 or III.
  • the disadvantage is that emotional quality such as lecture intensity and ventilation performance are significantly lowered and the curing time is longer, which can lead to problems caused by uncured in an emergency response.
  • the application of the adhesive is from 5 to 50 per inch.
  • the application pattern of the adhesive is any of the patterns shown below.
  • the patterns 1, 2, 3 to 5 are designed according to the blade direction of the coating machine.
  • the coating amount can be changed so as not to change the coating amount
  • the pattern 3 is a pattern in which projections are added to improve the peel strength of pattern 1, and the adhesive line can have projections at both ends, and the projections can be applied to the first horizontal distribution line.
  • the projection is not larger than the first vertical application line, and when the projection is formed on the first vertical application line, it is preferable to be formed smaller than the second horizontal application line at the bottom. More preferably, the projection is 1/3 the length of the application line. It is better to be formed to have the following length, and its width and thickness are preferably formed to be the same as the above-mentioned coating line.
  • the 11 vertical adhesive line and the 1 horizontal adhesive line are two or more lines. It can have an aggregated shape and this set shape can be seen as an application line.
  • the forms of the first horizontal adhesive system and the first vertical adhesive system are explained based on the letters I and 1, but one of the letters and symbols such as I, I, ⁇ ,, +, or Two or more can be used in a mixed arrangement.
  • the pattern mask coating device 300 is a cylindrical screen pattern coating plate 250 and a device installed on the inside of the cylindrical screen pattern coating plate 250
  • Adhesive injection device head (100) equipped with an adhesive inlet port (110) for supplying a low-liquid adhesive; and an adhesive injection port (130) configured to be integrally coupled to the adhesive injection device head and spraying ink; and of the adhesive injection port It is configured on one side or both sides, and then sprayed by the adhesive injection port.
  • Adhesive recovery means 120 for recovering the adhesive remaining on the cylindrical screen pattern coating plate 250; It is located on the upper side of the adhesive injection device head, the
  • a cleaning roller 220 that is tightly installed on the outer surface of the cylindrical screen pattern coating plate 250;
  • the pattern mask coating device 300 and the pressure cylinder 260 are in close contact with the fabric 160 to be coated and transferred simultaneously, and the liquid adhesive is formed of a foam member or fabric by the pattern mask coating device 300. It is also spread on one side to form a pattern.
  • the head portion 150 is integrally formed on the adhesive recovery means 120,
  • the adhesive coating head device 270 is composed of an adhesive injection device head 100 and a head portion 150 on the adhesive recovery means 120.
  • [5 is also another embodiment according to the present invention, as shown in FIG.
  • the pattern mask coating device 300 is used to form the adhesive pattern coating pattern, and the subsequent process is to apply the fabric to the same conditions as the method using the pattern roller.
  • the coating strength was 50 ⁇ m
  • the coating ratio was 13.5%, 18.5%, 23.5%, and 30.5%. Measure and see the softness.
  • test sample in Table 1 was prepared with leather non-ventilated specification / foam 3413 ⁇ 4 101 olefin.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

본 발명은 자동차용 시트를 가공하는 액상접착제를 이용한 자동차 시트용 원단 합포방법에 관한것으로, 본 발명에서는 원단의 일면에 액상접착제를 도포하고, 도포된 접착제의 상면으로 가죽원단을 공급하여 가압롤러로 합포시키는 원단의 합포 방법에 있어서, 상기 액상접착제를 패턴롤러 또는 패턴마스크도포장치를 사용하여 도포하되, 상기 패턴롤러에 의해 도포되는 접착제의 패턴이 롤러의 길이방향으로 일정길이 및 폭과 도포두께를 가지는 제1수직접착제 도포라인과 제1수평접착제 도포라인이 반복되어 규칙적으로 배열되되, 상기 제1수평접착제 도포라인이 상기 제1수직접착제 도포라인의 중심에 위치되도록 도포되어 형성되는 제1도포라인과; 상기 제1수직접착제 도포라인의 하측으로 그 중심방향에 위치되도록 도포되는 제2수평접착제 도포라인과, 상기 제1수평접착제 도포라인의 하측으로 도포되어 형성되는 제2수직접착제 도포라인이 반복되어 규칙적으로 배열되되, 상기 제2수평접착제 도포라인이 상기 제2수직접착제 도포라인의 중심에 위치되도록 도포되어 형성되는 제2도포라인이 형성되며, 상기 제1도포라인과 제2도포라인이 상호 교차되어 원단의 길이방향으로 반복형성되는 것을 특징으로 하는 액상접착제를 이용한 자동차 시트.

Description

2020/091175 1»（：1/10公019/007146
명세서
발명의명칭:감성품질향상을위한자동차시트용원단합포방법 기술분야
[1] 본발명은폼부재또는원단의일면에액상접착제를도포하고,그상면에가죽, 직물등의원단을합포하여자동차용시트를제조하기위한자동차시트용원단 합포방법에관한것이다.
배경기술
[2] 기존합포기술은폼부재또는원단을접착하는표면에접착제를도포한후,
2개의직물원단을상하바로접하는가압롤러사이에통과시켜 2개의
직물원단을합포하는것을특징으로한다.
[3] 그러나원단기능의복합화를위해원단층간에삽입되는망사형원단은
신장률이없어，상하바로접하는가압롤러사이를연속적으로통과하면원단 좌우장력을균일하게할수없어느슨하게되는일단이접히는문제가있다.
[4] 특히자동차시트용가죽으로사용되는소가죽은미세한모공이존재하고
주변환경의온습도변화에민감하게반응하여수축과이완현상이발생하게 된다.이러한현상으로기존의접착방식을적용하여전면접착할경우주름이나 면뜸등의품질문제를유발하는문제가있었다.
[5] 이러한문제점을해소하기위하여대한민국등록특허제 ½-0419240호에
개시된바와같이원단의일면에접착제를도트형태로도포하는기술이 개시되어있으나，이러한도트형태의접착제도포기술을자동차용
시트제조공정에적용할경우,접착제의점접착으로합포원단의파단강도가 저하되는단점이있다.
[6] 따라서,자동차시트용가죽으로사용되는소가죽을사용하여원단합포시
수축과이완현상에의한주름형성，면뜸등의품질문제를해소할수있는원단 합포방법개발이필요하다.
발명의상세한설명
기술적과제
] 본발명에서는상기한종래기술의문제점을해소하기위하여안출한
것으로서，내피로사용되는원단또는폼부재의일면에패턴롤러를사용하여 액상접착제의도포방식을개선함으로써，점접착에서스펀지등의접착부재의 파단강도를향상시키고，면접착에서가죽의소프트니스
Figure imgf000003_0001
등의품질을 향상시키며，일정한접착제도포패턴에서생길수있는골주름등을개선하기 위하여，접착제의최적도포두께，최적의도포비율및도포패턴을개선한 감성품질향상을위한자동차시트용원단합포방법을제공하는것을그 해결과제로한다.
과제해결수단 2020/091175 1»（：1^1{2019/007146
[8] 상기한과제를해결한본발명의 액상접착제를이용한자동차시트용원단 합포방법은폼부재또는원단의일면에 액상접착제를도포하고,도포된 접착제의쪽에가죽원단또는작물등의원단을공급하여가압롤러로
합포시키는원단의합포방법에 있어서，
[9] 상기 액상접착제를패턴롤러또는패턴마스크도포장치를사용하여도포하되， 상기패턴롤러또는패턴마스크도포장치에의해도포되는접착제의패턴이 롤러의길이방향으로일정길이및폭과도포두께를가지는제 1수직접착제 도포라인과제 1수평접착제도포라인이반복되어규칙적으로배열되되，상기 제 1수평접착제도포라인이상기제 1수직접착제도포라인의중심에위치되도록 도포되어형성되는제 1도포라인과，
[10] 상기제 1수직접착제도포라인의하측으로그중심방향에위치되도록도포되는 제 2수평접착제도포라인과,상기제 1수평접착제도포라인의하측으로도포되어 형성되는제 2수직접착제도포라인이반복되어규칙적으로배열되되,상기 제 2수평접착제도포라인이상기제 2수직접착제도포라인의중심에위치되도록 도포되어형성되는제 2도포라인이형성되며，상기제 1도포라인과
제 2도포라인이상호교차되어폼부재또는원단의길이방향으로반복형성되는 것을특징으로한다.
[11] 여기서，상기제 1수평접착제도포라인과제 2수평접착제도포라인은그도포층 형성시 일끝단이일정부분중첩되게도포되어형성되는것을특징으로한다.
[12] 여기서，상기제 1수직접착제도포라인과저 11수평접착제도포라인은
Figure imgf000004_0001
길이와 0.1~11파11의폭및 10~100 의도포두께를가지도록형성되는 것을특징으로한다.
[13] 상기제 1수직접착제도포라인과제 1수평접착제도포라인은 2개이상라인의 집합형상을각도포라인으로볼수있는것을특징으로한다.
[14] 여기서 ,상기접착제의도포패턴은하기에도시된패턴중어느하나의
패턴으로도포하여형성되는것을특징으로한다.
[15]
[16]
Figure imgf000004_0002
á패턴 1> á패턴 2> <패턴 3> á패턴 4 ñ á패턴 5>
[17] 여기서,상기패턴마스크도포장치는원통형스크린패턴도포판과;
[18] 상기원통형스크린패턴도포판의내측에설치되는장치로액상접착제를
공급하는접착제투입구가구비된접착제분사장치헤드와;상기
접착제분사장치헤드에 일체로결합되어구성되며잉크를분사하는
접착제분사구와; 2020/091175 1»（：1^1{2019/007146
[19] 상기접착제분사구의 일측또는양측에구성되여상기접착제분사구에의해 분사된후상기원통형스크린패턴도포판에잔존하는접착제를회수하는접착제 회수수단과;상기접착제분사장치헤드의상측에위치하며,상기패턴도포판의 외면에밀착설치되는클리닝롤러;를포함하며，
[2이 상기패턴마스크도포장치와압통사이에피도포체인원단을밀착시킴과
동시에이송시키며,상기패턴마스크도포장치에의해액상접착제가폼부재 또는원단의 일면에도포되어패턴을형성하는것을특징으로하는
액상접착제를이용한자동차시트용원단합포방법에의하여달성된다.
[21] 상기제 1수평접착제도포라인과제 1수직접착제도포라의형태가 자 , 그,丁, +중선택된하나또는 2개이상을혼합배열하여이루어진것을특징으로하는 액상접착제를이용한자동차시트용원단합포방법에의하여달성된다.
발명의효과
[22] 본발명의원단합포방법은점접착에서스펀지등접착부재의파단강도를
확보하고，면접착에서가죽의소프트니스（80免½88）품질을향상시키며,일정한 패턴에서생길수있는골주름등을개선함으로써고품질의자동차용
가죽시트를제공할수있다.
도면의간단한설명
[23] 도 1은본발명의원단합포방법의 일실시예를도시한공정도이다.
[24] 도 2는본발명의 일실시예에따라접착제가도포된형태의원단을도시한
것이다.
[25] 도 3은본발명의 일실시예에따라형성될수있는접착제도포형성패턴을
도시한것이다.
[26] 도 4는본발명의원단합포방법의다른실시형태를도시한공정도이다.
[2刀 도 5는본발명의 일실시예에따른합포원단의 50¾ 88와박리강도의
시험방법과그시험결과를나타내는성적서를도시한것이다.
발명의실시를위한최선의형태
[28] 이하，본발명을첨부된도면을참조하여보다상세히설명하기로한다.
[29] 첨부도면도 1은본발명의원단합포방법의 일실시예를도시한공정도이고, 도 2는본발명의일실시예에따라접착제가도포된형태의사진을도시한 것이며,도 3은본발명의 일실시예에따라형성될수있는접착제도포형성 패턴을도시한것이며,도 4는본발명의원단합포방법의다른실시형태를 도시한공정도이며,도 5는본발명의 일실시예에따른합포원단의 80^688^ 박리강도의시험방법과그시험결과를나타내는성적서를도시한것이다.
[30] 본발명은폼부재또는원단의 일면에 액상접착제를도포하고，도포된
접착제의상면으로가죽원단을공급하여가압롤러로합포시키는종래의원단의 합포방법을개선하기위한것으로，스펀지또는직물지등의 일면에
액상접착제를일정패턴을가지도록도포하고，그상면에가죽을합포하여 2020/091175 1»（：1^1{2019/007146
자동차용시트를가공하는액상접착제를이용한자동차시트용원단
합포방법을제공하기위한것으로，보다구체적으로첨부도면도 1및도 2를 참조하여살펴보면,본발명의 액상접착제를이용한자동차시트용원단 합포방법은기재원단 (30)의 일면또는폼부재의 일면에 액상접착제 (50)를 패턴롤러 (60)또는패턴마스크도포장치 (300)를사용하여도포한다.
[31] 이때，상기 액상접착제 (50)는입자상태의열가소성접착제를용융장치 (50)에서 액상으로녹이고，이를배출기를통해상온에서패턴롤러 (60)에공급한다.
공급된액상접착제 (50)는상기패턴롤러 (60)에음각되어형성된패턴홈 (62)에 삽입되어위치되게되며,기재원단 (30)또는픔부재의 이송속도에 맞추어 회전하며,상기패턴롤러 (60)의타측으로코팅롤러 (80)가위치되고，상기 코팅롤러 (80)와패턴롤러 (60)를기재원단또는픔부재가통과하면서
액상접착제 (50)가기재원단 (30)의상면에 일정패턴을가지도록도포된다.
[32] 도면에는도시되어 있지않으나고정롤러 (70)와패턴롤러 (60)사이에원료가 공급되고고정롤러 (70)에부착된나이프가코팅롤러 (60)의표면을긁어내어 코팅롤러 (60)에음각부분에만액상접착제 (50)가들어가고상기
액상접착제 (50)가다시폼부재에도포되는방식으로코팅롤러 (60)의표면을 정리하는구조도사용할수있다.
[33] 바람직하게상기패턴롤러 (60)는제공된액상접착제 (50)가굳음현상이발생할 수있는것을방지하기위하여소정의온도로가열시키는것이좋다.도 2에 도시된바와같이,상기패턴롤러에의해도포되는접착제의 패턴이롤러의 길이방향으로일정길이및폭과도포두께를가지는제 1수직접착제
도포라인 (12)과제 1수평접착제도포라인 (14)이반복되어규칙적으로배열되되， 상기제 1수평접착제도포라인 (14)이상기제 1수직접착제도포라인 (12)의중심에 위치되도록도포되어형성되는제 1도포라인 (10)과，상기제 1수직접착제 도포라인 (12)의하측으로그중심방향에위치되도록도포되는제 2수평접착제 도포라인 (22)과,상기제 1수평접착제도포라인 (14)의하측으로도포되어 형성되는제 2수직접착제도포라인 (24)이반복되어규칙적으로배열되되,상기 제 2수평접착제도포라인 (22)이상기제 2수직접착제도포라인 (24)의중심에 위치되도록도포되어형성되는제 2도포라인 (20)이형성되며，상기
제 1도포라인 (10)과제 2도포라인 (20)이상호교차되어폼부재또는원단의 길이방향으로반복형성되도록액상접착제의도포형태의패턴이 형성되는것에 기술적특징이 있는것이다.
[34] 이와같이，액상접착제 (50)를도포하여접착제층패턴을형성한다음,
가죽원단 (40)또는폼부재를공급하여가압롤러 (42, 14)에통과시켜합포시킨다. 이때,상기가압롤러는합포가잘이루어지도록바람직하게일정온도를 유지하는히팅롤러를사용하는것이좋다.합포된합포원단 (90)은
가이드롤러 (92)에의해가이드되어권취롤러 (94)로권취하여완성된다.
[3到 설명되지않은도면부호 70은고정롤러로상기패턴롤러 (60)와접착된부분에 2020/091175 1»（：1^¾2019/007146 액상접착제 (50)가고일수있도록，일정부분단턱부 (72)를형성하도록
절단부 (74)가형성되어진형태를가진다.이때,상기고정롤러는회전하지않고 고정된상태로있으며，상기고정롤러의단턱부 (72)는패턴롤러 (60)가 회전하면서패턴롤러 (60)에 형성되어 있는음각패턴에 액상접착제가고르게 인입되도록유도하며，또한패턴롤러 (60)의음각패턴외의표면에
액상접착제 (50)가잔류하지않도록하는기능을수행하게된다.
[36] 본발명에따르면,바람직하게도 2에도시된바와같이，상기제 1수평접착제 도포라인 (14)과제 2수평접착제도포라인 (22)은그도포층형성시 일끝단 (\ ， w2)이일정부분중첩되게형성되도록도포되는것이바람직하다.만일,이 부분의중첩이되지않고벗어날경우에는접착제가도포되지않은부분이 일정 선상을이루게되고，하중이가해졌을때도포된부분에비해상대적으로약한 이부분에골주름이형성되는문제가있다.뿐만아니라온/습도에민감한 천연가죽인경우하중을가하지않아도주변환경에따라가죽이수축과이완을 하고，이완시마찬가지로이부분에주금이형성되외관품질문제와가죽변형을 악화시킬수있다.보다바람직하게상기 일끝단의중첩부 (0)는 0.1〜 3111111의 범위내를만족하도록도포되는것이좋다.
[37] 본발명에따르면, 도포라인과제 1수평접착제 도포라인은 1~10_
Figure imgf000007_0001
및 10~100炯의
도포두께 ((13)를가지도록형성되는것이다.
[38] 만일，상기접착제도포라인이 1 미만일경우에는패턴자체가작아
감성품질면에서전면도포별차이가없으며 10111111을초과할경우에는시트용 가죽피스접착물에서모서리부미도포부위가많아져봉제시박리를유발할수 있다는단점이 있다.
[39] 또한，상기폭이 0.1_미만일경우에는원하는만큼의도포두께가나오지 않아박리강도가약해진다는단점이 있고， 1_을초과할경우에는반복적인 가중가압상황에서접착제도포층의자국이가죽외부로보일수있다는단점이 있다.
[40] 또한,상기접착제의도포두께는접착하고자하는소재에따라다르며통상 10나111미만일경우에는박리강도가현저히낮아진다는단점이있고， 100나 III을 초과할경우에는천연가죽의 80요1½88와강연도등감성품질과통풍성능이 현격히낮아지고경화시간이길어져긴급대응시미경화로인한문제를야기할 수있다는단점이 있다.
[41] 본발명에따르면,바람직하게상기접착제의도포는 1인치당 5~50의
도포밀도를가지도록도포되거나，혹은상기접착제의도포는픔부재또는 원단면적 대비 23~35%의도포비율로도포되는것이바람직하다.만일，상기 도포밀도또는도포비율의 임계치를벗어날경우에는박리강도어)가
나빠지거나혹은 80^8871-나빠지는문제가있을수있다.
[42] 2020/091175 1»（：1/10公019/007146
[43] 본발명에따르면，상기접착제의도포패턴은하기에도시된패턴중어느
하나의패턴으로도포하여형성될수있다. (도 3참조)
Figure imgf000008_0001
á패턴 1> á패턴 2> á패턴 3> á패턴 4> <패턴 5>
[4到 상기패턴 1과 2, 3내지 5는코팅머신의칼날방향에따라원하는설계된
도포량의변화를주지않도록변화를줄수있으며,패턴 3은패턴 1의박리강도 향상을위해돌기를추가한패턴으로,상기접착제도포라인은양끝단에돌기를 가질수있고,이돌기가제 1수평도포라인에형성될경우그크기는
제 1수직도포라인보다커질수없고,해당돌기가제 1수직도포라인에형성될 경우하단의제 2수평도포라인보다작게형성되는것이바람직하다.보다 바람직하게는상기돌기는도포라인길이대비 1/3이하의길이를가지도록 형성되는것이좋으며，그폭과두께는상기도포라인과동일하게형성되도록 하는것이좋다.또한패턴 5와같이저 11수직접착제도포라인과제 1수평접착제 도포라인은 2개이상라인의집합화된형상을가질수있으며이집합형상을 도포라인으로볼수있다.
[46] 한편본발명의편의상제 1수평접착제도포라인과제 1수직접착제도포라인의 형태를 I와一자를기본으로설명하고있으나사, I·，丄， , +등의문자및기호 중선택된하나또는 2개이상을혼합배열하여사용할수있다.
[4刀 본발명에따르면,도 4에도시된바와같이 ,상기패턴마스크도포장치 (300)는 원통형스크린패턴도포판 (250)과;상기원통형스크린패턴도포판 (250)의내측에 설치되는장치로액상접착제를공급하는접착제투입구 (110)가구비된 접착제분사장치헤드 (100)와;상기접착제분사장치헤드에일체로결합되어 구성되며잉크를분사하는접착제분사구 (130)와;상기접착제분사구의일측 또는양측에구성되여상기접착제분사구에의해분사된후상기
원통형스크린패턴도포판 (250)에잔존하는접착제를회수하는접착제 회수수단 (120)과;상기접착제분사장치헤드의상측에위치하며,상기
원통형스크린패턴도포판 (250)의외면에밀착설치되는클리닝롤러 (220);를 포함하며，
[48] 상기패턴마스크도포장치 (300)와압통 (260)사이에피도포체인원단 (160)을 밀착시킴과동시에이송시키며，상기패턴마스크도포장치 (300)에의해 액상접착제가폼부재또는원단의일면에도포되어패턴을형성할수있는 것이다.헤드부 (150)는접착제회수수단 (120)상에일체로구성되며
접착제도포헤드장치 (270)는접착제분사장치헤드 (100)와접착제회수수단 (120) 상의헤드부 (150)로구성된다. [49] 이상과같은본발명에따른접착제도포패턴형성방법을이용하여 기재원단으로자동차용시트가공에사용되는스펀지원단을준비하고,상기 스펀지원단을도 1의패턴롤러 (60)를통과시켜상기 (패턴 1)의형태로접착제 도포패턴을형성하고，가죽을합포한합포원단을가공하였다.가공된합포원단 5개의시료로준비하였다.이때,도포두께는 50/zra,도포바율은 13.5%, 18.5%, 23.5%및 30.5%의비율로총 4가지의셈플로준비하여박리강도와
소프트니스 (Softness)를측정하여보았다.
[5이 또한,본발명에따른다른실시형태로도 4에도시된바와같은
패턴마스크도포장치 (300)를사용하여접착제도포패턴을형성하고，이후의 공정은상기패턴롤러를사용한방법과동일한조건으로합포원단을
가공하였다.가공된합포원단 5개의시료를준비하였다.이때,도포두께는 50^m, 도포비율은 13.5%, 18.5%, 23.5%및 30.5%의비율로총 4가지의셈플로준비하여 박리강도와소프트니스 (Softness)를측정하여보앙다.
[51] 상기준비된두합포원단의외관형태,물성등을시험하여보았으며,그결과， 하기표 1과같은제품특성을나타내었다.시험결과는모두각각의케이스별로 5개의시료를테스트한후그결과값을평균하여나타내었다.
[52] 표 1에서 4의테스트에사용된시료중가죽은비통풍사양 (softness 2.0-2.1 )， 폼은 34kg 10T (Olefin coating)으로모두동일하다.
[53] [표 1]
Figure imgf000009_0001
[54] 상기표 1의결과로도포두께 50//111 /도포비율 23.5%,또는 30.5%일때가장 바람직한물성을나타내는것을알수있었다.특히，도포두께 50쌘! /도포비율 23.5%일때최적품질을나타내는것을알수있었고，이때 50요1^8는
약 0.3증가되는것을알수있었다. (도포량환산시 약 11抑/ )한편，도포비율이 18.5%, 13.5%일때는소프트니스는향상되나,박리강도가현저하게저하되는 것을알수있었다.그결과를종래방법에따라전체면적에 액상접착제를 도포하는방법을적용한합포원단 (표 2참조)과，등록특허제 10-0419240호의 방법에따른도트형태의접착제도포방법을적용한합포원단 (표 3및 4)을 준비하여본발명의합포원단의물성시험법과동일한방법으로시험하여 보았으며，그결과는하기표 2내지 4에나타내었다. [55] [표 2]
Figure imgf000010_0001
[56] 위표 1의테스트시료는가죽비통풍사양 /폼 341¾ 101올레핀을준비하였다.
_ _상기표 1로부타알수있듯이 ,액상접착제전면도포시박리강도테스트결과 스펀지파단이일어나는도포량은 4 / 이상에서일어나는것을알수있었다. 롤투롤방식의설비편차는약 1.5 으로약 1¾/ 으로이를고려하여최적 도포량은 50 로설정하였고,사용된원료의비중은약 1.06 으로도포 두께로환산시약 47_/ 이다.
[57] 도포두께 50 （도포량 5均/ ）이상에서스펀지파단이일어나는것을알수 있었다.
[58] [표 3]
Figure imgf000010_0002
[59] 상기표 3의결과로적정조건은도포두께 50 /패 /도포비율 40%인것을알수 있었다.（도포량환산시약 2¾/110즉,표 3과같이정삼각형의일정한반복패턴 적용시도포두께 50） /도포비율 40%에서최적품질을보이고이때 80요1½88는 약 0.2가증가되는것을알수있었다. [6이 [표 4]
Figure imgf000011_0002
[61] 적정조건은도포두께 50 /패/도포비율 32%인것을알수있었다. (도포량
환산시약 16 1^)즉,표 3의도트패턴적용시 50쌔! /도포비율 32%에서최적 품질을보이고이때가죽/폼접착물의 80¾ 88는약 0.1증가되는것을알수 있었다.이러한결과로살펴본바，본발명에따른방법에의해가공된 합포원단이종래의합포원단대비박리강도는크게차이가나지않았으며，종래 방법에따른합포원단은상대적으로박리강도가높을경우
Figure imgf000011_0001
가저하되는 경향이있는것을알수있으나，본발명에따른합포원단은오히려 가 향상되는결과를나타내어보다우수한제품을제공할수있음을알수있었다.
[62]
[63] [부호의설명]
[64] 10:제 1도포라인
[65] 20:제 2도포라인
[66] 12:제 1수직접착제도포라인
[6刀 14:제 1수평접착제도포라인
[68] 22:제 2수평접착제도포라인
[69] 24:제 2수직접착제도포라인
0] 30:기재원단
[71] 40:가죽원단
[72] 42, 14:가압롤러
[73] 50:용융장치
[74] 50:액상접착제
5] 60:패턴롤러
[76] 62:패턴홈
[7刀 70:고정롤러
[78] 80:코팅롤러
[79] 92:가이드롤러

Claims

2020/091175 1»（：1/10公019/007146
청구범위
［청구항 1］ 픔부재또는원단의일면에액상접착제를도포하고，도포된접착제의 상면으로가죽，직물로이루어진원단을공급하여가압롤러로
합포시키는원단의합포방법에있어서，
상기액상접착제를패턴롤러또는패턴마스크도포장치를사용하여 도포하되，상기패턴롤러에의해도포되는접착제의패턴이롤러의 길이방향으로일정길이및폭과도포두께를가지는제 1수직접착제 도포라인과제 1수평접착제도포라인이반복되어규칙적으로배열되되， 상기제 1수평접착제도포라인이상기제 1수직접착제도포라인의중심에 위치되도록도포되어형성되는제 1도포라인과，
상기제 1수직접착제도포라인의하측으로그중심방향에위치되도록 도포되는제 2수평접착제도포라인과,상기제 1수평접착제도포라인의 하측으로도포되어형성되는저［2수직접착제도포라인이반복되어 규칙적으로배열되되,상기제 2수평접착제도포라인이상기 제 2수직접착제도포라인의중심에위치되도록도포되어형성되는 제 2도포라인이형성되며,
상기제 1도포라인과제 2도포라인이상호교차되어폼부재또는원단의 길이방향으로반복형성되는것을특징으로하는감성품질향상을위한 자동차시트용원단합포방법 .
［청구항幻 제 1항에있어서，
상기제 1수평접착제도포라인과제 2수평접착제도포라인은그도포층 형성시일끝단이일정부분중첩되게도포되어형성되는것을특징으로 하는감성품질향상을위한자동차시트용원단합포방법 .
［청구항 3］ 제 1항에있어서，
상기제 1수직접착제도포라인과제 1수평접착제도포라인은 1니 0_의 길이 (바)와 0.1~1_의폭 ((12)및 10 1001X1111의도포두께 ((13)를가지도록 형성되는것을특징으로하는감성품질향상을위한자동차시트용원단 합포방법.
［청구항 4］ 제 1항에있어서，
상기제 1수직접착제도포라인과제 1수평접착제도포라인은 2개이상 라인의집합형상으로형성되는것을특징으로하는감성품질향상을 위한자동차시트용원단합포방법 .
［청구항 5］ 제 1항에있어서,
상기접착제의도포패턴은하기에도시된패턴중어느하나의패턴으로 도포하여형성되는것을특징으로하는감성품질향상을위한자동차 시트용원단합포방법 . 2020/091175 1»（：1/10公019/007146
Figure imgf000013_0001
<패턴 1 ñ á패턴 2> á패턴 3> <패턴 4> <패턴 5 ñ
[청구항 6] 제 1항에있어서，
상기패턴마스크도포장치는원통형스크린패턴도포판과; 상기원통형스크린패턴도포판의내측에설치되는장치로액상접착제를 공급하는접착제투입구가구비된접착제분사장치헤드와;상기 접착제분사장치헤드에일체로결합되어구성되며잉크를분사하는 접착제분사구와;
상기접착제분사구의일측또는양측에구성되여상기접착제분사구에 _ 의해분사된후상기원통형스크린패턴도포판에잔존하는접착제를
회수하는접착제회수수단과;상기접착제분사장치헤드의상측에 위치하며，상기패턴도포판의외면에밀착설치되는클리닝롤러;를 포함하며，
상기패턴마스크도포장치와압통사이에피도포체인원단을밀착시킴과 동시에이송시키며，상기패턴마스크도포장치에의해액상접착제가 픔부재또는원단의일면에도포되어패턴을형성하는것을특징으로 하는액상접착제를이용한자동차시트용원단합포방법 .
[청구항 7] 제 1항에있어서，
상기제 1수평접착제도포라인과제 1수직접착제도포라인의형태가사， 丄， 7% +중선택된하나또는 2개이상을혼합배열하여이루어진 것을특징으로하는액상접착제를이용한자동차시트용원단합포방법 . [청구항 8] 청구항제 1항내지제 6항중어느한항기재의합포방법에의해합포된 자동차시트용합포원단.
PCT/KR2019/007146 2018-11-02 2019-06-13 감성품질 향상을 위한 자동차 시트용 원단 합포방법 WO2020091175A1 (ko)

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