KR20110138046A - Manufacturing method of double adhesive sheet for clothes by using hot melt - Google Patents

Abstract

PURPOSE: A manufacturing method of both sides adhesive sheet for clothes using hot melt is provided to offer the optimized manufacturing method of release papers by enabling a user to effectively stick two or more folded clothes. CONSTITUTION: Hot melt powder(120) is uniformly sprayed to the coating surface of a first release paper(210) when the first release paper is moved. The one side of a fabric is accumulated on the coating surface. The first release paper is separated. Adhesive(220) is sprayed on the coating surface of the first release paper. When the release paper is moved, the hot melt powder is sprayed at the other side of the fabric. A manufactured object is cooled.

Description

MANUFACTURING METHOD OF DOUBLE ADHESIVE SHEET FOR CLOTHES BY USING HOT MELT}

TECHNICAL FIELD This invention relates to the manufacturing method of a double-sided adhesive sheet. Specifically, It is related with the manufacturing method of the double-sided adhesive sheet for coating which facilitates 2 or more layers of coating joining.

In general, two or more layers of coating, in particular, such as waterproof gloves may be made of the outer skin used for the waterproof material, the inner skin used for the insulation material and the middle skin used for absorbing sweat, discharge material.

In order to bond the inner and outer surfaces of the coating made in such a manner, there is a method of bonding and sewing the bonded part, but the manufacturing process is a difficult factor, and the manufacturing cost and the waterproofness are inferior.

The Utility Model No. 0398602 proposed a structure that facilitates the coupling of the inner and outer shells by using the bonding tab member mounted on the finger in relation to the sealing structure of the waterproof gloves, but when the inner and outer shells are disjoined. There are also many problems of cloth damage during sewing.

Patent No. 0903046 discloses a waterproof glove made of an inner skin, an outer skin, and an intermediate skin, wherein a waterproof glove using a bonding member composed of a release paper, an adhesive part, a fabric, and a hot melt part in order to bond an inner and an outer skin and a manufacturing method thereof. It is proposed for, but does not disclose a method for manufacturing the bonding member itself, which is the core material of the registered patent.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for producing a double-sided adhesive sheet to facilitate the bonding of two or more layers.

The present invention as a means for solving the above technical problem,

(1) (a) uniformly spraying hot melt powder on the coated surface of the first release paper while transferring the first release paper, laminating one surface of the fabric on the coated surface, and then heating, cooling and separating the first release paper step; (b) applying an adhesive to the coated surface of the second release paper; And (c) laminating the other surface of the fabric to which the hot melt powder of step (a) is bonded to the surface to which the pressure-sensitive adhesive is applied while transferring the release paper to which the pressure-sensitive adhesive of step (b) is applied; It provides a method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that.

(2) In the above (1), the heating of the step (a) is performed on a heating roller of 110 ~ 130 ℃, the cooling of the (a) step is performed on a cooling roller of -10 ~ -20 ℃ It provides a method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that.

(3) In the above (1), the hot melt powder of the step (a) provides a method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that the softening temperature is 79 ~ 81 ℃.

(4) The method for producing a double-sided adhesive sheet for coating using hot melt according to (1), wherein the pressure sensitive adhesive of step (b) is an acrylic pressure sensitive adhesive or an aqueous pressure sensitive adhesive.

(5) In the above (1), the step (b), the step of scraping for uniform application of the pressure-sensitive adhesive; It provides a method of producing a double-sided adhesive sheet for coating using a hot melt, characterized in that it further comprises; and drying.

(6) The method of (5), wherein the drying, the step of raising the temperature from 70 ~ 80 ℃ to 115 ~ 125 ℃; And it provides a method for producing a double-sided adhesive sheet for coating using a hot melt comprising the step of reducing the temperature from 115 ~ 125 ℃ to 70 ~ 80 ℃.

(7) In the above (1), the cooling of the step (c) provides a method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that carried out in a cooling roller of -10 ~ -20 ℃. .

According to the present invention, it is possible to provide an optimal method for producing a double-sided adhesive sheet that facilitates two or more layers of coating bonding.

1 is a cross-sectional view of a double-sided adhesive sheet for coating using a hot melt prepared according to an embodiment of the present invention,
Figure 2 is a schematic diagram showing a manufacturing process of the hot melt processed fabric according to an embodiment of the present invention,
3 is a schematic view showing a process for producing a second release paper coated with a pressure-sensitive adhesive according to an embodiment of the present invention, and a bonding process of a hot melt processed fabric and a second release paper coated with a pressure-sensitive adhesive,
Figure 4 is a photograph showing the surface of the double-sided adhesive sheet for coating using a hot melt prepared according to an embodiment of the present invention.

The present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

The present invention, (a) while uniformly spraying the hot melt powder 120 on the coating surface of the first release paper 110 while transporting the first release paper 110, one surface 131 of the fabric 130 to the coating surface ) Laminating the heating, cooling and separating the first release paper (110); (b) applying the pressure-sensitive adhesive 220 on the coated surface of the second release paper 210; And (c) the other surface of the fabric 130 to which the hot melt powder 120 of step (a) is adhered to the surface on which the pressure-sensitive adhesive is applied while transferring the release paper 210 to which the pressure-sensitive adhesive 220 of (b) is applied. It provides a method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that it comprises a; and then cooling the 132.

In the present invention, in particular, in bonding two or more layers of coatings such as waterproof gloves, the release paper 210, the adhesive 220, the fabric 130, and the hot melt powder 120 which can be used as materials excellent in coating bonding processability and coating quality. ) Is to provide an optimal manufacturing method for manufacturing the double-sided adhesive sheet 300 for coating using hot melt laminated in order. Hereinafter, the step-by-step process will be described. Here, the release papers (110, 120) in the step (a) and (b) is the same, but for clear separation the release paper of step (a) 'first release paper' (110), the release paper of step (b) ' The second release paper '210.

Step (a)- Hot melt  Powder-bonded Fabric Manufacturing Process

Step (a) in the present invention relates to a process for manufacturing a fabric (hereinafter referred to as a 'hot melt processing fabric') 100 to which the hot melt powder is laminated by stacking the fabric 130 and the hot melt powder 120.

In order to manufacture the hot melt fabric 100, the sheet is symmetrical to the fabric 130 with the hot melt powder 120 is required. As such sheets, release paper is used. Here, the release paper is also referred to as release paper, which is a paper that protects the surface by contacting the adhesive surface such as adhesive tape, label, etc., and the surface of the release paper is surface-treated so that the adhesive tape, label or the like can be peeled off. Generally, one side or both sides of kraft paper are made by applying silicone resin emulsion.

In order to adhere the hot melt to the fabric in the form of a powder, unlike applying liquid hot melt, cost reduction in heating, cooling, and release paper separation process, as well as coating adhesion and adhesion during coating adhesion using the prepared adhesive sheet It is because it adheres easily even at low temperature heat fusion temperature and is excellent also in workability.

Therefore, the present inventors first uniformly spray the hot melt powder 120 on the coating surface of the first release paper 110, and then coated (adhesive) the sprayed hot melt powder 120 on one surface 131 of the fabric (first adhesive paper) The method of separating only 110 is conceived.

Here, the hot melt powder 120 should be adhered to the fabric 130 so that one surface 131 of the fabric is laminated on the coated surface of the first release paper 110 to which the hot melt powder 120 is sprayed. In order to coat the hot melt powder 120 on the fabric 130, proper heating is required. At this time, when the hot melt powder 120 is heated to a molten state, it is not easy to separate from the coating surface of the first release paper 110, and even if it is coated on the fabric 130, the heat fusion temperature is high during coating adhesion, resulting in good workability. Will not. Therefore, while minimizing the crystallinity change of the hot melt powder 120, it is necessary to heat the degree of adhesiveness with the fabric 130 is higher than the adhesiveness with the coating surface of the first release paper 110. This heating was found to be possible by passing the laminated first release paper 110 and the fabric 130 through a heating roller 141 of 110 ~ 130 ℃. Preferably it passes through the heating roller 141 of 118-122 degreeC. When the temperature of the heating roller 141 is less than 110 ° C., the adhesiveness of the hot melt powder 120 is superior in the coating surface of the first release paper 110 so that the hot melt powder 120 does not adhere to the fabric 130, and the heating roller ( 141) If the temperature exceeds 130 ℃ hot melt powder 120 is melted is not preferred.

After heating the laminated first release paper 110 and the fabric 130, a cooling process is required to stably fix the hot melt powder 120 having some fluidity to the fabric 130. Such cooling is preferably performed by passing the laminated first release paper 110 and the fabric 130 through the first cooling roller 142 of -20 ℃ ~ -10 ℃. More preferably, it passes through the 1st cooling roller 142 of -16 degreeC--14 degreeC. When the temperature of the first cooling roller 142 is less than −20 ° C., the adhesiveness with the fabric 130 may not be good due to excessive hardening of the hot melt powder 120, and the temperature of the first cooling roller 142 may be − When the temperature exceeds 10 ° C., the hot melt powder 120 may not be completely adhered to the fabric 130 and thus may not be uniformly adhered to the fabric.

Through the above process, separation of the first release paper 110 is facilitated. Separation of the first release paper 110 is provided by the first release paper recovery roller 151 and the hot melt processing fabric recovery roller 152 separately, the first release paper 110 and the coated surface passing through the first cooling roller 142 Due to the difference in adhesion of the hot melt powder 120 on one side of the fabric 131 is automatically separated.

On the other hand, the hot melt powder 120 is preferably a softening temperature of 79 ~ 81 ℃. The heat fusion temperature at the time of coating adhesion using the double-sided adhesive sheet 300 manufactured by the manufacturing method according to the present invention depends on the properties of the hot melt powder. In general, the hot-melt powder used for the adhesive sheet for coating used a hot-melt powder having a high softening temperature of 120 ° C or higher. Therefore, when the hot melt powder having a low softening temperature is used, the heat fusion temperature can be lowered at the time of coating adhesion, thereby enabling a rapid process at a low temperature. According to the manufacturing method according to the present invention, even if the softening temperature of the hot-melt powder 120 is a high temperature of 120 ℃ or more, as well as a low temperature of about 80 ℃ it is possible to manufacture the adhesive sheet 300 without difficulty.

Step (b)-the adhesive Applied Release paper  Manufacture process

In the present invention, step (b) relates to a process of manufacturing the second release paper 200 to which the pressure-sensitive adhesive is applied by applying the pressure-sensitive adhesive 200 to the coating surface of the second release paper 210.

The pressure-sensitive adhesive 220 serves to bond with the other surface 132 of the hot melt processing fabric 100 manufactured in step (a), the second release paper 210 is a pressure-sensitive adhesive (bonded to the fabric 130) 220) to protect the role. In the present invention, since the pressure-sensitive adhesive 220 is used for coating, it is preferable that it is an acrylic pressure-sensitive adhesive or an aqueous pressure-sensitive adhesive that is harmless to the human body and has good adhesion.

Here, in order to apply the adhesive 220 to the coating surface of the second release paper 210 thinly and uniformly, the adhesive surface 220 passes through the coating surface of the second release paper 210 through the roller 232 to which the adhesive 220 is applied. It is preferable to scrape by using the scraper 240 after application, and further, the hot melt processing fabric prepared in step (a) after uniformly applying the adhesive 220 to the second release paper 210 coated surface by scraping. It is more preferable to go through the drying process before the lamination process with the hot-melt processing fabric 100 in order to improve the good adhesion and workability with the other surface 132 of (100).

The drying process is carried out under a heating atmosphere. First, in order to more uniformly apply the pressure-sensitive adhesive 220 coated on the second release paper 210 coated surface and improve the adhesiveness after drying, the temperature is dried from 70 ~ 80 ℃ to 115 ~ 125 ℃, then the adhesive 220 In order to prevent the weakening of the adhesiveness due to the rapid change in physical properties, the process of temperature-drying from 115 ~ 125 ℃ to 70 ~ 80 ℃.

(c) step- Hot melt  Processed fabric and adhesive Applied Release paper  Gluing process

In the present invention, step (c) relates to a process of adhering the hot melt processing fabric 100 prepared in step (a) and the second release paper 200 coated with the adhesive prepared in step (b).

The bonding process is to transfer the second release paper 200 coated with the pressure-sensitive adhesive prepared in step (b) while the other surface 132 of the hot melt fabric 100 in step (a) to the surface on which the pressure-sensitive adhesive 220 is applied ) And then cooling.

Here, the cooling is for a stable adhesion between the dried adhesive 220 and the other surface 132 of the fabric, this cooling is the hot melt processed fabric 100 and the second release paper 200 coated with the adhesive- It is preferably carried out by passing through a second cooling roller (261) of 20 ℃ ~ -10 ℃. More preferably, it passes through the 2nd cooling roller 261 of -16 degreeC--14 degreeC. When the temperature of the second cooling roller 261 is less than −20 ° C., the degree of adhesion to the other surface 132 of the fabric may be insufficient due to excessive curing of the acrylic bond 220, and the temperature of the second cooling roller 261 may be reduced. When the temperature exceeds -10 ° C, hardening of the acrylic bond 220 is insufficient, so that the side surface is stuck in the rolled final sheet 300 state, which is not good when used as a product. Thereafter, after passing through the second cooling roller 261, the final recovery roller 262 may be rolled to manufacture a double-sided adhesive sheet 300 for coating using hot melt.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

Example

1 is a cross-sectional view of a double-sided adhesive sheet for coating using a hot melt prepared according to an embodiment of the present invention, Figure 2 is a schematic diagram showing a manufacturing process of a hot melt processed fabric according to an embodiment of the present invention.

1 and 2, the first release paper 110 according to the embodiment of the present invention used a kraft paper coated with silicone resin emulsion on one surface, and the hot melt powder 120 had a softening temperature of 80 ° C. TAIWAN TPU Hot Melt Adhesive Powder from PU CORPORATION was used. As a preparation step of manufacturing the hot melt fabric 100, first, the coated kraft paper 110 and the fabric 130 wound around each take-out roller 161 and 162 are taken out and wound up to each of the recovery rollers 151 and 152. At this time, the coated surface of the coated kraft paper 110 is to be the upper surface. In addition, the hot melt powder 120 stored in the container is located on the upper surface of the outlet of the coated kraft paper 110 so as to be uniformly sprayed on the coated surface of the kraft paper 110 during the process, the heating roller 141 is 120 ℃, The first cooling roller 142 is set to be -15 ℃.

Hereinafter, a process of manufacturing the hot melt fabric 100 will be described.

The hot melt powder 120 is uniformly sprayed from the container 170 on the top of the coated kraft paper 110 and then laminated with the fabric 130 through the auxiliary roller 180 to heat the roller 141 and the first cooling roller 142. ) Is passed through the surface contact method. At this time, the surface contact time in the heating roller 141 and the first cooling roller 142 is preferably 3 to 5 seconds, respectively. When the surface contact time of the heating roller 141 is less than 3 seconds, the adhesiveness of the hot melt powder 120 predominates in the coating surface of the coated kraft paper 110 so that the hot melt powder 120 is not adhered to the fabric 130. If it is longer than 5 seconds, the hot melt powder 120 is melted, which is not preferable. In addition, when the surface contact time in the first cooling roller 142 is less than 3 seconds, the hot melt powder 120 is not completely adhered to the fabric 130 so that it is not uniformly adhered to the fabric 130, and 5 seconds If it exceeds the excessive melt of the hot melt powder 120, the adhesion with the fabric 130 is not good.

Subsequently, the coating kraft paper 110 and the hot melt processing fabric 100 are separated from the separation roller 190 and wound on the recovery rollers 151 and 152.

Figure 3 is a schematic diagram showing a second release paper manufacturing process and the adhesive process of the hot melt processing fabric and the second release paper coated with the adhesive according to an embodiment of the present invention, Figure 4 is in accordance with an embodiment of the present invention It is a photograph showing the surface of the coated double-sided adhesive sheet using the prepared hot melt.

3, 4 and 1, the second release paper 210 according to an embodiment of the present invention used the same as the first release paper 110 coated kraft paper, adhesive 220 is an acrylic pressure-sensitive acrylic Bond was used. In the preparation step as shown in FIG. 1, first, the coated kraft paper 210 and the hot melt processing fabric 100 wound on each take-out roller 251 and 252 are taken out and wound up to the final recovery roller 262. At this time, after passing through the lamination roller 270, the pressure-sensitive adhesive surface of the second release paper 200 coated with the adhesive and the other surface 132 of the hot melt fabric 100 is laminated. In addition, the acrylic bond 220 stored in the container 280 is placed in the ejection portion of the coated kraft paper 210, the first adhesive roller (A) so that the acrylic bond 220 is applied to the coated surface of the coated kraft paper 210 ( 231 and the second adhesive roller 232 are sequentially positioned on the upper portion of the container 280, and a scraper 240 is installed between the second adhesive roller 232 and the drying section 290. The drying section 290 is set at 75 ° C., 100 ° C. and 120 ° C. atmospheres 291, 292, and 293 for temperature rising drying in the process progress direction, and 80 ° C. and 75 ° C. atmospheres (294 and 295) for temperature drying. And the 2nd cooling roller 261 after passing the paper roller 270 is set to -15 degreeC.

Hereinafter, the manufacturing process according to Figure 3 will be described.

The coated surface of the extracted coated kraft paper 210 is coated with an acrylic bond 220 while being in surface contact with the second adhesive roller 232. The acrylic bond 220 is applied to the coating surface while being rotated in contact with the second adhesive roller 232 after being coated in the container 280 and the first adhesive roller 231. Thereafter, for uniform application of the acrylic bond 220 is passed through the scraper 240 and the remaining acrylic bond 220 scraped by the scraper 240 is dropped to the container 280 is reused.

Subsequently, after passing through the scraper 240, the auxiliary rollers 281 and 282 pass through the drying section 290. The drying sections 290 are all divided into five sections and are set to 75 ° C., 100 ° C., 120 ° C., 80 and 75 ° C. atmospheres 291 to 295 by the heating device (not shown) at the bottom of the drying section in order of the process progress direction. have.

The coated kraft paper 200 coated with the adhesive passing through the drying section 290 is laminated with the hot melt processed fabric 100 taken out of the hot melt processed fabric take-out roller 252 by the lamination roller 270. After lamination, the second cooling roller 261 passes through the surface contact and is rolled by the final recovery roller 262 to complete the double-faced adhesive sheet 300 for coating using hot melt.

100: hot melt processing fabric 110: first release paper
120: hot melt powder 130: fabric
141: heating roller 142: first cooling roller
151: first release paper recovery roller 152: hot melt processing fabric recovery roller
161: first release paper taking out roller 162: fabric taking out roller
170: hot melt powder container 200: second release paper coated with an adhesive
210: second release paper 220: adhesive
231: first adhesive roller 232: second adhesive roller
240: scraper 251: second release paper taking out roller
252: hot melt processing fabric take-out roller 261: second cooling roller
262: final recovery roller 270: lamination roller
280: pressure-sensitive adhesive container 290: drying section

Claims (7)

(a) uniformly spraying hot melt powder on the coated surface of the first release paper while transferring the first release paper, laminating one surface of the fabric on the coated surface, and then heating, cooling and separating the first release paper;
(b) applying an adhesive to the coated surface of the second release paper; And
(c) laminating the other surface of the fabric to which the hot melt powder of step (a) is bonded to the surface to which the pressure-sensitive adhesive is applied while transferring the release paper to which the pressure-sensitive adhesive of step (b) is applied;
Method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that it comprises a. The method of claim 1,
The heating of the step (a) is carried out on a heating roller of 110 ~ 130 ℃, the cooling of the step (a) for the coating using a hot melt, characterized in that performed on a cooling roller of -10 ~ -20 ℃ Method for producing double-sided adhesive sheet. The method of claim 1,
The hot melt powder of step (a), the softening temperature is 79 ~ 81 ℃ manufacturing method of the double-sided adhesive sheet for coating using a hot melt, characterized in that. The method of claim 1,
The method of manufacturing a double-sided adhesive sheet for coating using a hot melt, characterized in that the pressure-sensitive adhesive of step (b) is an acrylic pressure-sensitive adhesive or an aqueous pressure-sensitive adhesive. The method of claim 1,
Step (b), the step of scraping for uniform application of the pressure-sensitive adhesive; And drying;
Method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that it further comprises. The method of claim 5,
The drying, the step of raising the temperature from 70 ~ 80 ℃ to 115 ~ 125 ℃; And Method for producing a double-sided adhesive sheet for coating using a hot melt, characterized in that it comprises the step of reducing the temperature from 115 ~ 125 ℃ to 70 ~ 80 ℃. The method of claim 1,
The cooling of the step (c), the manufacturing method of the double-sided adhesive sheet for coating using a hot melt, characterized in that carried out in a cooling roller of -10 ~ -20 ℃.

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