Method for hemming clothing, method for manufacturing hemming tape, and hemming tape

Abstract

This invention provides a method for hemming clothing, a method for manufacturing hemming tape, and a hemming tape that allows for the secure attachment of the hem portion of clothing using a simple procedure. [Solution] An example of a hem tape to which the present invention is applied, hem tape A, comprises a heat-pressure double-sided tape 1 and a main tape 2. The heat-pressure double-sided tape 1 has a first adhesive layer made of polyamide adhesive on both sides of a paper base material. In addition, release paper 3 is attached to the upper surface of the heat-pressure double-sided tape 1. The main tape 2 has a second adhesive layer 20 made of nylon low-melting-point yarn adhesive on the upper surface of a polyester base material.

Description

Technical Field

[0006] ,

[0001] The present invention relates to a method for lifting the hem of clothing, a method for manufacturing a hem-lifting tape, and a hem-lifting tape. Specifically, it relates to a method for lifting the hem of clothing that can firmly adhere the hem-lifting part of the clothing with a simple procedure, a method for manufacturing a hem-lifting tape, and a hem-lifting tape.

Background Art

[0002] In clothing such as trousers and skirts, in order to adjust the length dimension, a method of folding back the hem to form a hem-lifting piece and fixing it to the main body part of the clothing with a hem-lifting tape is generally performed.

[0003] For example, in the hem-lifting tape described in Patent Document 1, a single-sided coating layer is provided on the tape body, and a low-melting-point hot-melt adhesive layer is provided on the entire surface of the coating layer. The tape body is ironed, and the tape body is adhered to straddle the hem-lifting piece and the main body part of the clothing with the melted adhesive to fix the end of the hem-lifting piece.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] [[ID=三十九]]However, in the hem-lifting tape described in Patent Document 1, the fixing force by the melted adhesive is insufficient, and there is a risk that the hem-lifting piece may peel off over time.

[0006] The present invention was devised in view of the above points, and an object thereof is to provide a method for lifting the hem of clothing, a method for manufacturing a hem-lifting tape, and a hem-lifting tape that can firmly adhere the hem-lifting part of the clothing with a simple procedure. [Means for solving the problem]

[0007] To achieve the above objective, the present invention provides a method for hemming a garment, comprising: a first tape body having a first adhesive layer made of a thermoplastic adhesive that generates adhesive strength in a first temperature range provided on both sides; and a second tape body having a second adhesive layer made of a predetermined adhesive that generates adhesive strength in a second temperature range with a lower limit higher than the lower limit temperature of the first temperature range and including a temperature range that overlaps with the first temperature range, provided on at least one side of a predetermined width, to form a hem tape, and fixing the hem portion of the garment with the hem tape, comprising a tape fitting step of aligning one side of the first tape body with the side of the second tape body on which the second adhesive layer is provided; and dissolving only the first adhesive layer on the other side of the first tape body. The method comprises: a first heating step of heating the second tape body from at least one side opposite to the side of the second tape body to which the second adhesive layer is provided, using a heating means at a temperature within the first temperature range and not overlapping with the second temperature range, thereby bonding the first tape body and the second tape body to form the hem tape; a tape placement step of positioning the other side of the first tape body in the hem tape so that it abuts against the area spanning the hem piece of the garment and the main body of the garment; and a second heating step of heating and pressurizing the hem tape from the side of the second tape body opposite to the side of the second tape body to which the second adhesive layer is provided, using a heating and pressurizing means at a second temperature that overlaps with the first and second temperature ranges, thereby bonding the hem tape to the garment.

[0008] Here, in the tape joining process, one side of the first tape body is joined with the side of the second tape body on which the second adhesive layer is provided. In the first heating process, the other side of the first tape body and the side of the second tape body opposite to the side on which the second adhesive layer is provided are heated using a heating means at a temperature within the first temperature range, which does not overlap with the second temperature range, so that only the first adhesive layer melts. This adheres the first tape body and the second tape body together, forming a hem tape. In this way, a hem tape can be formed from the first tape body and the second tape body. Furthermore, by heating with a heating means at a temperature within the first temperature range, which does not overlap with the second temperature range, no adhesive force is generated in the second adhesive layer, and only the first adhesive layer provided on both sides of the first tape body is melted (thermally melted), thereby generating adhesive force. In particular, the thermoplastic adhesive on one side can be melted (thermally melted), allowing the first tape body and the second tape body to be adhered and integrated. Furthermore, by adopting a temperature in which the predetermined adhesive constituting the second adhesive layer does not melt, the first tape can be bonded to the second tape using only the adhesive strength of the first adhesive layer, without melting the second adhesive layer. The heating means referred to here only needs to be able to heat the first tape, and can be a contact or non-contact heating method.

[0009] Furthermore, in the tape placement step, the other side of the first tape body of the hem tape is placed in contact with the area spanning the hem piece of the garment and the main body of the garment. In the second heating step, the hem tape is heated and pressurized from the side of the second tape body of the hem tape opposite to the side where the second adhesive layer is provided, using a heating and pressurizing means at a second temperature which overlaps the first and second temperature zones. By bonding the hem tape to the garment, the hem tape can be bonded to the hem piece of the garment and the main body of the garment, and the hem piece can be fixed to the main body. At this time, by heating with a heating and pressurizing means at a second temperature which overlaps the first and second temperature zones, the predetermined adhesive of the second adhesive layer is melted, and the hem tape can be strongly bonded to the garment. In addition, the thermoplastic adhesive of the first adhesive layer provided on both sides of the first tape is melted, and this adhesive of the first adhesive layer, together with the predetermined adhesive of the second adhesive layer, generates adhesive force to the garment, thereby increasing the adhesive strength of the hem tape. Furthermore, the adhesive of the first adhesive layer and the specified adhesive also function as primers to enhance their adhesion to each other, thereby significantly increasing the adhesion strength of the hem tape to the garment. More specifically, the thermoplastic adhesive on the other side of the first tape dissolves and penetrates into the fabric of the hem piece and the fabric of the garment's main body, integrating the fabric surfaces. Then, the thermoplastic adhesive on one side of the first tape and the adhesive of the second tape melt simultaneously, creating a state where they readily accept each other, resulting in strong adhesion and allowing them to exert a primer effect on each other.

[0010] Furthermore, if a release liner is attached to the other side of the first tape body, and in the first heating step, heating is performed by heating means from at least one side opposite to the upper surface of the release liner and the side of the second tape body opposite to the side on which the second adhesive layer is provided, then, for example, when the heating means contacts the first tape body to heat, the melted adhesive of the first adhesive layer does not adhere to the heating means side but adheres to the release liner side, making the heating process easier.

[0011] Furthermore, in the first heating step, if a heat-resistant sheet is placed on the other side of the first tape body and heated by a heating means from at least one side opposite to the upper surface of the sheet and the side of the second tape body on which the second adhesive layer is provided, for example, when the heating means contacts the first tape body to heat, the melted adhesive of the first adhesive layer does not adhere to the heating means side but adheres to the sheet side, making the heating process easier.

[0012] Furthermore, the second tape body has a second adhesive layer provided only in a predetermined width. In the first heating step, if the heating means heats an area that does not correspond to the predetermined width of the second tape body, the area of ​​the second adhesive layer on the second tape body is limited. By heating while avoiding this area, the adhesive of the first adhesive layer on the first tape body can be dissolved. As a result, even if the temperature of the heating means is increased relatively high, the predetermined adhesive of the second adhesive layer will not be dissolved, and only the adhesive of the first adhesive layer will be thoroughly dissolved, allowing the first tape body to be bonded to the second tape body.

[0013] Furthermore, if the second tape body has a second adhesive layer provided only in a predetermined width, and in the first heating step, the area of ​​the second tape body that does not correspond to the predetermined width is heated by a heating means at a temperature higher than the upper limit temperature of the first temperature range and a heating time longer than the predetermined heating time, in such a way that the re-adhesion force of the thermoplastic adhesive is lost, the melted thermoplastic adhesive will generate adhesive force during the first heating step, allowing the first tape body to adhere to the second tape body, and even if heated again afterward, it will not generate re-adhesion force. As a result, a non-adherent area is created between the hem portion of the garment and the main body, improving the flexibility of the fabric of the hem portion after the hem tape has been attached. In other words, it becomes possible to finish the hem portion of the garment with a soft texture. The predetermined heating time referred to here means an appropriate heating time at a heating temperature that can reversibly dissolve and solidify the thermoplastic resin.

[0014] Furthermore, if the second tape body has a second adhesive layer provided only over a predetermined width, and the first tape body is formed within a range corresponding to the predetermined width, the hem tape can be adhered to the garment mainly around the first tape body corresponding to the predetermined width, that is, within a limited range corresponding to the predetermined width, rather than the entire range of the second tape body. As a result, an area that is not adhered is created between the hem portion of the garment and the main body, which improves the flexibility of the fabric in the hem portion after the hem tape has been adhered. In other words, it becomes possible to finish the hem portion of the garment with a soft texture.

[0015] Furthermore, if the release paper has a heat-sensitive ink background, a first set of text information printed on the background in the same color as the release paper or in white, and a second set of text information printed in the same color as the heat-sensitive ink, the first and second sets of text information can be switched and displayed on the release paper before and after heating from above. That is, for example, before heating the release paper with an iron, the first set of text information, "Heat evenly throughout," can be displayed. When the release paper is heated with an iron, the heat-sensitive ink background disappears, the first set of text information also disappears, and the second set of text information, "Caution: High Temperature," can be displayed on the release paper. In this way, it is possible to switch and display different text information according to the heating process.

[0016] Furthermore, in order to achieve the above objectives, the present invention provides a method for manufacturing a hem tape, comprising: a tape fitting step of aligning one side of a first tape body, which has a first adhesive layer made of a thermoplastic adhesive that generates adhesive strength in a first temperature range, with the side of a second tape body on which the second adhesive layer is provided, which has a second adhesive layer made of a predetermined adhesive that generates adhesive strength in a second temperature range that has a lower limit higher than the lower limit temperature of the first temperature range and includes a temperature range that overlaps with the first temperature range; and a tape bonding heating step of heating the other side of the first tape body and the side of the second tape body opposite to the side on which the second adhesive layer is provided with a heating means at a first temperature that is within the first temperature range and does not overlap with the second temperature range, so as to dissolve only the first adhesive layer, thereby bonding the first tape body and the second tape body.

[0017] In the tape joining process, one side of a first tape body, which has a first adhesive layer made of a thermoplastic adhesive that generates adhesive force in a first temperature range, provided on both sides, is joined with the side of a second tape body, which has a second adhesive layer made of a predetermined adhesive that generates adhesive force in a second temperature range, with a lower limit higher than the lower limit temperature of the first temperature range and including a temperature range that overlaps with the first temperature range, provided on at least one side of one side of the second tape body for a predetermined width. In the tape bonding heating process, the first tape body and the second tape body are heated from at least one side of the other side of the first tape body and the side of the second tape body opposite to the side with the second adhesive layer, using a heating means at a temperature within the first temperature range and not overlapping with the second temperature range, so that only the first adhesive layer melts, thereby bonding the first tape body and the second tape body to form a hem tape. Furthermore, by heating with a heating means at a temperature within the first temperature range that does not overlap with the second temperature range, adhesive force is not generated in the second adhesive layer, and only the first adhesive layers provided on both sides of the first tape body are melted (thermally melted), thereby generating adhesive force. In particular, the thermoplastic adhesive on one side can be melted (thermally melted), allowing the first tape body and the second tape body to be bonded and integrated.

[0018] Furthermore, in order to achieve the above objective, the present invention provides a method for hemming a garment, which involves fixing the hem portion of a garment with a hem tape formed by bonding one side of a first tape body having a first adhesive layer made of a thermoplastic adhesive that generates adhesive force in a first temperature range on both sides, and one side of a second tape body having a second adhesive layer made of a predetermined adhesive that generates adhesive force in a second temperature range that has a lower limit higher than the lower limit temperature of the first temperature range and includes a temperature range that overlaps with the first temperature range, to at least one side of the second tape body, the method comprising: a tape placement step of positioning the other side of the first tape body of the hem tape in contact with the area spanning the hem piece of the garment and the main body of the garment; and a tape application heating step of heating and pressurizing the hem tape from the side of the second tape body opposite to the side on which the second adhesive layer is provided, using a heating and pressurizing means at a second temperature which is a temperature that overlaps with the first and second temperature ranges, to bond the hem tape to the garment.

[0019] In this process, the tape placement step involves positioning the other side of the first tape body of the hem tape so that it is in contact with the area spanning the hem piece of the garment and the main body of the garment. Then, in the tape application and heating step, the side of the second tape body of the hem tape opposite to the side where the second adhesive layer is provided is heated and pressurized using a heating and pressing means at a second temperature, which is a temperature that overlaps between the first and second temperature zones. By bonding the hem tape to the garment in this way, the hem tape can be bonded to the hem piece of the garment and the main body of the garment, and the hem piece can be fixed to the main body. In this process, heating and pressurizing using a heating and pressing means at a second temperature, which is a temperature that overlaps between the first and second temperature zones, dissolves the predetermined adhesive in the second adhesive layer, allowing the hem tape to be strongly bonded to the garment. Furthermore, by dissolving the thermoplastic adhesive of the first adhesive layer provided on both sides of the first tape, the adhesive of this first adhesive layer, together with the predetermined adhesive of the second adhesive layer, generates adhesive force to the garment, thereby increasing the adhesive strength of the hem tape. In addition, the adhesive of the first adhesive layer and the predetermined adhesive also function as primers that enhance each other's adhesion, thereby sufficiently increasing the adhesive strength of the hem tape to the garment. More specifically, the thermoplastic adhesive on the other side of the first tape dissolves and penetrates into the fabric of the hem piece and the fabric of the garment's main body, integrating the fabric surfaces. Then, the thermoplastic adhesive on one side of the first tape and the adhesive of the second tape melt simultaneously, becoming receptive to each other, resulting in strong adhesion and allowing them to exert a primer effect on each other.

[0020] Furthermore, in order to achieve the above objectives, the hemming tape of the present invention comprises a first tape body having a first adhesive layer made of a thermoplastic adhesive that generates adhesive strength in a first temperature range provided on both sides, and a second tape body having a second adhesive layer made of a predetermined adhesive that generates adhesive strength in a second temperature range having a lower limit temperature higher than the lower limit temperature of the first temperature range and including a temperature range that overlaps with the first temperature range, provided on at least one side for a predetermined width, with the one side being adhered to the first tape body.

[0021] Here, the first tape body has a first adhesive layer made of a thermoplastic adhesive on both sides, so that, for example, the first tape body can be bonded to the second tape body via the adhesive of the first adhesive layer on one side of the first tape body, thereby creating a unified structure.

[0022] Furthermore, the second tape body has a second adhesive layer provided on at least one side of a predetermined width, which consists of a predetermined adhesive that generates adhesive force in a second temperature range that has a lower limit higher than the lower limit temperature of the first temperature range and includes a temperature range that overlaps with the first temperature range. This allows the hem portion of the garment to be adhered to the main body of the garment and fixed in place via the predetermined adhesive of the second adhesive layer and the adhesive of the first adhesive layer on the other side of the first tape body.

[0023] Furthermore, the first tape body is provided with a first adhesive layer made of a thermoplastic adhesive that generates adhesive strength in a first temperature range, and the second tape body is provided with a second adhesive layer made of a predetermined adhesive that generates adhesive strength in a second temperature range that has a lower limit higher than the lower limit temperature of the first temperature range and includes a temperature range that overlaps with the first temperature range. As a result, the adhesive of the first adhesive layer, together with the adhesive of the second adhesive layer, generates adhesive strength to the garment, thereby increasing the adhesive strength of the hem tape. In addition, the adhesive of the first adhesive layer and the predetermined adhesive also function as primers that enhance each other's adhesion, thereby sufficiently increasing the adhesive strength of the hem tape to the garment. More specifically, the thermoplastic adhesive on the other side of the first tape body melts and penetrates into the fabric of the hem piece and the fabric of the garment body, integrating the fabric surfaces. Then, the thermoplastic adhesive on one side of the first tape body and the adhesive of the second tape body melt simultaneously, becoming receptive to each other, resulting in strong adhesion and allowing them to exert a primer effect on each other.

[0024] Furthermore, if a release liner is attached to the side of the first tape body opposite to the side that is adhered to the second tape body, it is possible to prevent foreign matter, dirt, etc. from adhering to the thermoplastic adhesive on the side of the first tape body opposite to the side that is adhered to the second tape body.

[0025] Also, the second tape body is provided with the second adhesive layer only in a predetermined width. When the second tape body is adhered to the first tape body in a range not corresponding to the predetermined width, it is possible to select the material of the first tape body regardless of the temperature at which the second adhesive layer melts. That is, not only materials that melt at a temperature lower than the temperature at which the second adhesive layer melts but also materials that melt at a relatively high temperature can be adopted, and the range of material selection for the first tape body can be widened.

[0026] Also, the second tape body is provided with the second adhesive layer only in a predetermined width. When the first tape body is formed in a range corresponding to the predetermined width, the hem-raising tape can be adhered to the clothing around the first tape body corresponding to the predetermined width, that is, in a limited range corresponding to the predetermined width rather than the entire range of the second tape body. According to this, an area where it does not adhere between the hem-raising part and the main body of the clothing can be formed, and the flexibility of the fabric of the hem-raising part after adhering the hem-raising tape can be improved. That is, it becomes possible to finish the hem-raising part of the clothing with a soft texture. Also, although a step due to a difference in thickness occurs between the hem-raising part and the main body of the clothing, by not adhering the hem-raising tape to this step part, the step can be made invisible from the side of the hem-raising tape.

Advantages of the Invention

[0027] The method for raising the hem of clothing according to the present invention is a method that can firmly adhere the hem-raising part of the clothing with a simple procedure. Also, the method for manufacturing the hem-raising tape according to the present invention is a method that can firmly adhere the hem-raising part of the clothing with a simple procedure. Also, the hem-raising tape according to the present invention is one that can firmly adhere the hem-raising part of the clothing with a simple procedure.

Brief Description of the Drawings

[0028] [Figure 1](a) and (b) are diagrams showing the process for manufacturing hemming tape A, which is an example of hemming tape to which the present invention is applied. [Figure 2] (a) and (b) are diagrams showing the process for manufacturing hemming tape A, which is an example of hemming tape to which the present invention is applied. [Figure 3] Figures (a) to (d) show the flow of the hemming method using hemming tape A. [Figure 4] (a) and (b) are diagrams showing the structure of a modified version of hemming tape. [Figure 5] Figures (a) to (c) show the process of switching the text information by heating a release paper on which text information has been printed with thermal ink. [Figure 6] (a) to (d) are diagrams showing modified examples of the hemming method to which the present invention is applied. [Figure 7] (a) to (d) are diagrams showing modified examples of the hemming method to which the present invention is applied. [Modes for carrying out the invention]

[0029] [Embodiments of the present invention] Hereinafter, embodiments of the present invention will be described with reference to the drawings to facilitate understanding of the present invention. The following describes an example of a garment hemming method, a hemming tape manufacturing method, and a hemming tape to which the present invention applies. The present invention is not limited to this, and can be modified as appropriate.

[0030] Furthermore, in the following explanation, using Figure 1(a) as a reference, the top of the figure will be referred to as "upper" or "above," and the bottom of the figure will be referred to as "lower" or "below."

[0031] As shown in Figure 1(a), an example of a hem tape to which the present invention is applied, hem tape A comprises a heat-pressure double-sided tape 1 and a main tape 2.

[0032] Here, the heat-pressure double-sided tape 1 is composed of a tape-like member consisting of a first adhesive layer made of polyamide adhesive on both sides (top and bottom). In other words, the heat-pressure double-sided tape 1 is a member formed in tape form from an adhesive component that melts when heated. Furthermore, a release paper 3 is attached to the top surface of the heat-pressure double-sided tape 1. That is, a layer of release paper 3 is provided on top of the first adhesive layer.

[0033] The polyamide adhesive in this first adhesive layer is a thermoplastic adhesive that melts (thermally melts) at temperatures of approximately 110°C to 160°C and solidifies after cooling. Furthermore, the temperature range in which the adhesive in the first adhesive layer melts includes the temperature range (140°C to 160°C) in which the second adhesive layer 20, described later, melts.

[0034] Furthermore, the main tape 2 has a second adhesive layer 20 made of nylon low-melting-point yarn adhesive on the upper surface of the polyester base material (see Figure 1(a)). In addition, two of the second adhesive layers 20 are provided for each base material, each formed in a strip shape of a certain width along the longitudinal direction of the base material.

[0035] The adhesive made of nylon low-melting-point yarn in this second adhesive layer 20 is a water-dispersible thermoactive adhesive.

[0036] This water-dispersible, heat-activated adhesive has solid adhesive components finely dispersed in water. When brought into contact with water and heated during use, the solid adhesive components dissolve and disperse, becoming liquid or semi-liquid.

[0037] Furthermore, when a water-dispersible thermoactivated adhesive is heated in a liquid or semi-liquid state, the molecular structure of the adhesive components changes, and thermal activation occurs, strengthening the chemical bond. This thermal activation also generates strong adhesive force, and the adhesive can fully cure, resulting in high adhesive strength.

[0038] Furthermore, the adhesive made of nylon low-melting-point yarn in the second adhesive layer 20 can be activated by contacting it with water and heating it at a temperature of approximately 140°C to 160°C.

[0039] Here, it is not necessarily required that both sides of the heat-pressure double-sided tape 1 be constructed of a first adhesive layer made of polyamide. For example, the first adhesive layer can be any thermoplastic adhesive that melts at a certain temperature and hardens after cooling, and it is sufficient that it has the property of being able to melt and harden multiple times due to the action of heat. The first adhesive layer can be, for example, polyester (PES), copolyester (Co-PES), polyamide (PA), polyamide copolymer (Co-PA), polyurethane (PU, TPU), ethylene vinyl acetate (EVA), polyolefin (PO) (attactic polypropylene (APP), amorphous polyalphaolefin (APAO), ethylene-ethyl acrylate copolymer (EEA), etc.), styrene block copolymer (SBS, etc.), acrylic hot melt, acrylic block copolymer, thermoplastic elastomer (TPE), polyvinyl butyral (PVB), nylon hot melt (PA6, PA66), thermoplastic polyether ester (TPEE), ethylene-methacrylic acid copolymer (EMAA), ethylene-vinyl acetate copolymer (EVA), polyester, polyurethane (thermoplastic grade), thermal polymer (composite resin), etc. Furthermore, the type of adhesive for the first adhesive layer is preferably selected appropriately depending on the material of the clothing and its compatibility with the second adhesive layer 20.

[0040] Furthermore, the heat-pressure double-sided tape 1 does not necessarily have to be a component formed by creating an adhesive component in the shape of a tape. For example, a configuration in which a first adhesive layer is provided on both sides of a heat-resistant substrate using an adhesive component to form a tape-like component can also be adopted.

[0041] Furthermore, the main tape 2 does not necessarily have to be constructed of a polyester base material and a second adhesive layer 20 made of nylon low-melting-point yarn. For example, the second adhesive layer 20 can be a water-dispersible thermoactivated adhesive. This water-dispersible thermoactivated adhesive is an adhesive that melts at a temperature higher than the temperature required to bond the heat-pressure double-sided tape 1 and the main tape 2, and is not affected by the heating required to bond the heat-pressure double-sided tape 1 and the main tape 2. It is also an adhesive that requires water for thermal activation. Additionally, polyester low-melting-point yarn can be used as the second adhesive layer 20. However, the second adhesive layer 20 must have the property of not melting at the temperature required to bond the heat-pressure double-sided tape 1 and the main tape 2 in order to ensure the adhesive strength when bonding the hem tape A to the garment. Furthermore, the base material can be any material that can withstand temperatures higher than the upper limit of the temperature required to thermally activate the adhesive constituting the second adhesive layer 20. Furthermore, it is preferable to appropriately select the type of adhesive for the second adhesive layer 20 based on its compatibility with the adhesive of the first adhesive layer and the substrate.

[0042] Furthermore, it is not necessarily required that two second adhesive layers 20 be provided on a single substrate, each formed in a strip of a certain width along the longitudinal direction of the substrate. For example, a structure in which the second adhesive layer 20 is provided along the entire upper surface of the substrate can also be adopted. However, by providing the second adhesive layer 20 in a strip of a certain width along the longitudinal direction of the substrate on the main tape 2, there will be areas on the upper surface of the substrate where the second adhesive layer 20 is not present. When the heat-pressure double-sided tape 1 is bonded to the main tape 2, these areas can be heated to a higher temperature, reducing the thermal impact on the second adhesive layer 20 while ensuring that the first adhesive layer is thoroughly melted.

[0043] Furthermore, the sizes of the heat-pressure double-sided tape 1 and the main tape 2 are not particularly limited. However, it is preferable to form the heat-pressure double-sided tape 1 to be slightly smaller than the main tape 2, taking into account that the main tape 2 will shrink when heated. This prevents the heat-pressure double-sided tape 1 from overflowing from the main tape 2 and contaminating the iron with the melted first adhesive layer, even if the main tape 2 shrinks when heated.

[0044] Furthermore, it is not always necessary for the release paper 3 to be attached to the upper surface of the heat-pressure double-sided tape 1. However, it is preferable for the release paper 3 to be attached to the upper surface of the heat-pressure double-sided tape 1, as this prevents the melted first adhesive layer from adhering to the release paper 3 when the heat-pressure double-sided tape 1 is heated, thus preventing contamination of the iron. Also, as will be described later, by applying water to the hem tape A and peeling off the release paper 3 in the area to be heated with the iron I, the moisture is retained by the release paper 3, ensuring that the moisture necessary for the water-dispersion heat activation that generates adhesive strength in the hem tape A is secured, thereby preventing poor adhesion due to insufficient moisture. For this reason, it is preferable for the release paper 3 to be attached to the upper surface of the heat-pressure double-sided tape 1.

[0045] Next, the manufacturing method for hem tape A will be described. This manufacturing method is an example of a manufacturing method for hem tape to which the present invention is applied.

[0046] As shown in Figure 1(a), prepare the heat-pressure double-sided tape 1 with release paper 3 attached and the main tape 2.

[0047] Then, with the side of the heat-pressure double-sided tape 1 with the release paper 3 attached (the top side) facing upwards, the bottom surface of the heat-pressure double-sided tape 1 is placed on the top surface of the main tape 2 (see Figure 1(b)). At this time, the bottom surface of the heat-pressure double-sided tape 1 comes into contact with the position of the second adhesive 20.

[0048] Furthermore, as shown in Figure 2(a), an iron I set to a temperature of approximately 110°C to 130°C is applied to the release paper 3 to heat it. This heating by the iron I melts only the first adhesive layer of the heat-pressure double-sided tape 1, generating adhesive force.

[0049] Furthermore, by heating the release paper 3 along the heat-pressure double-sided tape 1 with an iron I, the adhesive strength of the melted first adhesive layer causes the lower surface of the heat-pressure double-sided tape 1 to adhere to the upper surface of the main tape 2, integrating them and forming the hem tape A (see Figure 2(b)). Moreover, the heat-pressure double-sided tape 1 does not need to exert its full adhesive strength at this stage; it is sufficient for the heat-pressure double-sided tape 1 and the main tape 2 to become one.

[0050] Furthermore, when heating with iron I, the first adhesive layer is melted by heating at a temperature of approximately 110°C to 130°C. However, by heating at the same temperature range, it is possible to suppress the melting of the second adhesive layer 20 of the main tape 2 due to heat. This ensures the adhesive strength of the second adhesive layer 20 when the hem tape A is attached to the garment.

[0051] Here, it is not necessarily required to use an iron when heating the heat-pressure double-sided tape 1 from above the release paper 3; any known heating method, whether contact or non-contact, can be used as long as heating is possible. However, when using a water-dispersible heat-activated adhesive for the second adhesive layer 20 of the main tape 2, the heating method used to heat the heat-pressure double-sided tape 1 from above the release paper 3 must be one that does not generate moisture.

[0052] Furthermore, in another aspect of the present invention, when heating the release paper 3 along the heat-pressure double-sided tape 1 with an iron I, it is also possible to further heat the portion of the heat-pressure double-sided tape 1 corresponding to the area without the second adhesive layer 20 at a higher temperature to cause the first adhesive layer to lose its re-adhesion ability.

[0053] In this case, under conditions where the first adhesive layer made of polyamide does not reversibly develop adhesive strength, for example, Heating is performed under conditions that involve heating at a high temperature (higher than 160°C) exceeding the optimal operating temperature for dissolving the adhesive components, or under conditions that involve heating at or above the optimal operating temperature for a longer period of time than the optimal heating time for dissolving the adhesive components. As a result, the adhesive components of the first adhesive layer generate adhesive force only when the heat-pressurized double-sided tape 1 adheres to the main tape 2, and no further adhesive force is generated in subsequent processes even with heating.

[0054] As a result, when the hem tape A is later attached to the trousers P, the adhesive strength of the first adhesive layer is not generated, and there are areas where the hem tape A does not adhere to the trousers P. This improves the flexibility of the fabric in the hem portion after the hem tape has been attached. In other words, it becomes possible to finish the hem portion of the garment with a soft texture. Thus, it is also possible to use the first adhesive layer in a way that partially reduces its adhesive strength in order to increase the flexibility of the fabric.

[0055] Next, a method for hemming clothing using hemming tape A will be described. This method is an example of a method for hemming clothing to which the present invention is applied.

[0056] As shown in Figure 3(a), for the trousers P to be hemmed, the trousers P are turned inside out, a hem piece P1 of the desired hem length is placed on it, and the hem piece P1 is shaped by heating it with an iron.

[0057] Furthermore, the hem tape A described above is soaked in water, and the hem tape A is positioned so that the side with the release paper 3 (the upper surface of the heat-pressure double-sided tape 1) is in contact with the end of the hem piece P1 on the trousers P (the end on the main body side of the trousers) and the main body P2 of the trousers (see Figure 3(b)).

[0058] Next, with respect to the hem tape A positioned to straddle the end of the hem piece P1 and the main body P2, the release paper 3 is peeled off while applying an iron I, set to a temperature of approximately 140°C to 160°C, to the underside of the main body tape 2 (the side opposite to the side with the second adhesive layer 20) to heat and pressurize the hem tape A (see Figure 3(c)). That is, the release paper 3 is peeled off in accordance with the area being heated by the iron I.

[0059] Here, when the hem tape A, which has been soaked in water, is brought into contact with the trousers P, the release paper 3 is kept attached until just before heating with the iron I, thereby retaining moisture with the release paper 3. As a result, moisture is less likely to be absorbed into the fabric of the trousers P, ensuring that the moisture necessary for the water-dispersion heat activation that generates adhesive force in the hem tape A is secured, and preventing poor adhesion due to insufficient moisture.

[0060] The heating of the iron I activates the second adhesive layer 20 of the main tape 2 through water dispersion heat, and the pressure from the iron I causes it to penetrate the fabric of the trousers P. As the heated temperature drops while the melted adhesive is intricately intertwined, the adhesive components solidify in their complex shape, creating a strong adhesive force that allows the hem tape A to adhere to the hem piece P1 and the main body P2. Furthermore, the pressure pushes the adhesive into the base material of the main tape 2, and the adhesive penetrates both into the base material and the trouser fabric, thereby increasing the adhesive strength.

[0061] Furthermore, the heating and pressurizing of the iron I also melts the first adhesive layer of the heat-pressure double-sided tape 1, allowing the adhesive of the first adhesive layer on the side from which the release paper 3 has been peeled to penetrate into the fabric of the hem piece P1 and the main body P2, integrating the inside and surface of the fabric. In addition, the adhesive of the first adhesive layer and the adhesive of the second adhesive layer on the side of the heat-pressure double-sided tape 1 opposite to the side with the release paper 3 melt upon heating, creating a primer effect that makes them more receptive to each other's adhesive layers, allowing them to adhere strongly to one another.

[0062] In this way, by heating and pressing the hem tape A with an iron I, the hem tape A is firmly adhered to the trousers P, thereby firmly fixing the hem piece P1 to the main body P2, and the trousers P can be hemmed (see Figure 3(d)).

[0063] Here, it is not necessarily required to use an iron when heating the underside of the main tape 2 while peeling off the release paper 3 from the hem tape A; any known heating method that allows for heating and pressurization can be used. For example, a heating press machine can be used.

[0064] In the hem tape A to which the present invention is applied, a heat-pressure double-sided tape 1 having a first adhesive layer made of thermoplastic adhesive and a main tape 2 having a second adhesive layer 20 made of water-dispersible thermoactive adhesive can be combined to firmly adhere the hem tape A to the desired hem portion of the trousers P.

[0065] When hemming using this hemming tape A, the hemming piece P1 is less likely to peel off the main body P2 of the trousers P even after time has passed, and strong fixation can be achieved for a long period of time.

[0066] Next, we will explain a modified version of the hem tape A described above.

[0067] In the hem tape A1 shown in Figure 4(a), when the lower surface of the heat-pressure double-sided tape 1 is adhered to the upper surface of the main tape 2, the lower surface of the heat-pressure double-sided tape 1 is attached to the area 21 where the second adhesive layer 20 is not provided.

[0068] With this hem tape A1, when the heat-pressure double-sided tape is heated with an iron, it is heated in a range where the second adhesive layer 20 is not present. Therefore, it is possible to select the material of the heat-pressure double-sided tape 1 regardless of the melting temperature of the second adhesive layer 20. In other words, not only materials that melt at a temperature lower than the melting temperature of the second adhesive layer 20 can be used, but also materials that melt at relatively high temperatures, thus broadening the range of material selection for the heat-pressure double-sided tape 1. Furthermore, by broadening the range of material selection for the heat-pressure double-sided tape 1, the range of material selection for the second adhesive layer 20 can also be broadened. In addition, the adhesive components of the second adhesive layer 20 are not dissolved, and only the adhesive of the first adhesive layer is firmly dissolved, allowing the heat-pressure double-sided tape 1 to adhere to the main tape 2.

[0069] Furthermore, in the hem tape A2 shown in Figure 4(b), two heat-pressure double-sided tapes 10 are attached to one main tape 2. The heat-pressure double-sided tape 10 has a first adhesive layer on both sides, and its size is larger than the second adhesive layer 20. Also, taking into account that the base material of the main tape 2 shrinks due to heat, the heat-pressure double-sided tape 10 is formed smaller than the base material of the main tape 2.

[0070] In this hem tape A2, the area where the heat-pressure double-sided tape 10 is applied is attached separately from the hem piece P1 and main body P2 of the trousers. As a result, there is a non-adherent area between the hem tape A2 and the hem piece P1 and main body P2, which blocks the bending and twisting forces applied to the trousers P and ensures the flexibility of the fabric. As a result, it is possible to finish the hem of the garment with a soft texture.

[0071] Thus, in the hemming tape of the present invention, the area to which the heat-pressure double-sided tape adheres to the main tape may be the entire surface of the main tape or only a portion of it. It is sufficient that the structure can be attached to the garment as a single hemming tape in a later step. Furthermore, in the case of partial attachment, structures in which the tape is attached in scattered areas or in a dotted pattern may also be adopted.

[0072] Another variation involves printing text information using heat-sensitive ink on the release paper of the hem tape. For example, the release paper 30 shown in Figure 5(a) is used as the release paper to be attached to the upper surface of the heat-pressure double-sided tape 1.

[0073] This release paper 30 has a background 31 printed with black thermal ink on the upper surface of a substrate coated with a silicone polymer on paper or film, and white letters 32 are printed on the background 31 (see Figure 5(a)). In addition, black letters 33 are printed on a portion of the area on the upper surface of the substrate where the background 31 is provided (see Figures 5(b) and 5(c)).

[0074] Furthermore, the heat-sensitive ink in background 31 is a reversible heat-sensitive ink that becomes colorless and transparent in response to heat above 110°C, and returns to black when the temperature drops.

[0075] When the heat-pressure double-sided tape 1 is heated with an iron and adhered to the main tape 2, the release paper 30 has a black background 31 with white lettering 32 (in Figure 5(a), the words "(1) Heat the entire surface evenly with an iron") displayed on it before heating.

[0076] Furthermore, when the release paper 30 is heated with an iron, the heat-sensitive ink reacts to the heat, causing the black background 31 to disappear, and consequently the white letters 32 to vanish. In addition, black letters 33 appear in part of the area where the black background 31 has disappeared (see Figure 5(b)).

[0077] Furthermore, once the entire release paper 30 has been heated by the iron, the black background 31 and the white lettering 32 disappear completely, and black lettering 33 appears on the release paper 30 (see Figure 5(c)). The text information of the black lettering 33 (in Figure 5(c), the text reads "Caution: High Temperature (2) Allow to cool completely before working") is displayed.

[0078] In this way, the text information can be switched between white text 32 and black text 33 before and after heating, in accordance with the heating process on the release paper 30. Furthermore, by devising the content of the text information, it is possible to display work instruction comments or warning comments according to the heating status. In addition, by linking the ink reaction temperature with the work instruction temperature, it is possible to detect any heating leaks.

[0079] Next, a further modification of the method for hemming garments to which the present invention is applied will be explained with reference to the figures. The following explanation describes a method using the heat-pressure double-sided tape 1 and the main tape 2 described above.

[0080] First, as shown in Figure 6(a), the trousers P to be hemmed are turned inside out, a hem piece P1 of the desired hem length is placed on top, and the hem piece P1 is shaped by heating and pressing it with an iron.

[0081] In Figures 6(a), 6(c), 6(d), 7(a), and 7(c), a schematic side cross-sectional view showing the structure of the trousers and various tapes is shown on the right side of the figure.

[0082] Next, position the heat-pressure double-sided tape 1 so that its lower surface (the side opposite to the side with the release paper 3) is in contact with the end of the hem piece P1 of the trousers P and the main body P2 of the trousers (see Figure 6(b)).

[0083] Next, the heat-pressure double-sided tape 1, which is positioned to straddle the end of the hem piece P1 and the main body P2, is heated and pressurized by applying an iron I, set to a temperature of approximately 140°C to 160°C, to the release paper 3 on its upper surface (see Figure 6(c)).

[0084] The heating and pressurizing of the iron I melts the first adhesive layers on both sides of the heat-pressure double-sided tape 1, penetrating into the fabric of the hem piece P1 and the main body P2 of the trousers P, and integrating the inside and surface of the fabric of the hem piece P1 and the main body P2.

[0085] Furthermore, after the heat-pressure double-sided tape 1 is attached, the release paper 3 is peeled off, leaving only the heat-pressure double-sided tape 1 adhered to the hem piece P1 and the main body P2 (see Figure 7(a)). Here, the adhesive components of the first adhesive penetrate the fabric of the trousers P due to heating and pressurization, and as the temperature drops while the adhesive components are intricately intertwined, the adhesive components solidify, penetrating into the interior of the fabric of the hem piece P1 and the main body P2, covering the surface of the fabric with the adhesive components, and integrating the interior and surface of the fabric.

[0086] Furthermore, while the residual heat from the heat-pressure double-sided tape 1 is still present, the main tape 2 is positioned so that its upper surface (the side with the second adhesive layer 20) is placed on top of the heat-pressure double-sided tape 1 (see Figure 7(b)).

[0087] Next, an iron I, set to a temperature of approximately 140°C to 160°C, is applied to the underside of the main tape 2 (the side opposite to the side on which the second adhesive layer 20 is provided) to heat and pressurize the main tape 2 (see Figure 7(c)).

[0088] The heating and pressurizing of the iron I causes the second adhesive layer 20 of the water-containing main tape 2 to be activated by the heat of water dispersion, generating a strong adhesive force. This allows the adhesive of the second adhesive layer 20 to bond with the adhesive components of the first adhesive, which are integrated with the interior and surface of the fabric of the hem piece P1 and the main body part P2.

[0089] Furthermore, by heating and applying pressure with iron I, the heat-pressure double-sided tape 1 and the main tape 2 are heated simultaneously, causing the adhesives on the contact surfaces to melt due to the heat, creating a primer effect that makes them more receptive to each other's adhesive layers, allowing the adhesive layers to bond strongly to each other.

[0090] In this way, by simultaneously heating and applying pressure to the heat-pressure double-sided tape 1 and the main tape 2 with an iron I, the hem piece P1 and the main body P2 are firmly adhered to each other via the heat-pressure double-sided tape 1, thereby firmly fixing the hem piece P1 to the main body P2 and allowing the trousers P to be hemmed (see Figure 7(d)).

[0091] As described above, the present invention provides a method for hemming clothing that allows for the secure attachment of the hemmed portion of clothing using a simple procedure. Furthermore, the method for manufacturing the hem tape of the present invention is a simple procedure that allows for the firm adhesion of the hem portion of clothing. Furthermore, the hemming tape of the present invention allows for the secure attachment of the hem portion of clothing using a simple procedure.

[0092] Although the present invention has been specifically described above based on embodiments, it goes without saying that the present invention is not limited to the above embodiments and can be modified in various ways without departing from its essence. [Examples]

[0093] The following describes embodiments of the present invention.

[0094] Here, the hem tape A, which is an embodiment of the present invention as described above, was used as an example, and only the main tape 2 described above was used as a comparative example, and the following tests were conducted. First, five types of fabrics were prepared as test subjects to which the tapes for the examples and comparative examples were to be attached: Fabric 1 (72% polyester / 26% polyurethane), Fabric 2 (100% polyester), Fabric 3 (100% cotton), Fabric 4 (100% cotton (textured)), and Fabric 5 (100% polyester (brushed)). For each of these fabrics 1 to 5, the tapes for the examples and comparative examples were simultaneously heated and pressed with an iron (160°C) for 60 seconds to fix the tapes to each fabric. After that, the fabrics were held vertically, and hanging weights were attached to the upper end of each tape. The weight of the hanging weights was increased in 100g increments, and the situation was observed until the upper end of each tape peeled off in the opposite direction (vertically downwards) by 180 degrees. The same test was also performed five times for each fabric. The test results are shown in Table 1 below. Note that the values ​​such as "3.2" on the cover page 1 are the weights (in kg) of the hanging weights just before the upper end of the tape peeled off. Furthermore, the "Average Value" in Table 1 is the average value of the results from five tests. Also, the "Ratio to Comparative Example" in Table 1 shows the ratio of the "Average Value of the Example" to the "Average Value of the Comparative Example" for each fabric.

[0095] [Table 1]

[0096] As shown in Table 1, the values ​​obtained in the example were greater than the values ​​obtained in the comparative example for all fabrics 1 to 5. In other words, the tape in the example adhered more strongly to each fabric than the tape in the comparative example. [Explanation of Symbols]

[0097] A Hemming Tape I Iron P trousers P1 (Pants) Hemming Piece P2 (Trousers) Main body 1. Heat-pressure double-sided tape 2 Main tape 20 Second adhesive layer 3. Release paper A1 Hemming Tape 21 Area where the second adhesive layer is not provided A2 Hemming Tape 10 Heat-pressure double-sided tape 30 Release paper 31 Background 32 White text 33 Black text

Claims

1. A method for hemming a garment, comprising combining a first tape body having a first adhesive layer on both sides made of a thermoplastic adhesive that generates adhesive strength in a first temperature range, and a second tape body having a second adhesive layer on at least one side of a predetermined width made of a predetermined adhesive that generates adhesive strength in a second temperature range with a lower limit higher than the lower limit temperature of the first temperature range and including a temperature range that overlaps with the first temperature range, to form a hem tape, and fixing the hem portion of the garment with the hem tape, A tape alignment step of aligning one side of the first tape body with the side of the second tape body on which the second adhesive layer is provided, A first heating step is to heat the first tape body from at least one of the other side and the side of the second tape body opposite to the side on which the second adhesive layer is provided, using a heating means at a temperature within the first temperature range and not overlapping with the second temperature range, so that only the first adhesive layer dissolves, thereby bonding the first tape body and the second tape body together and forming the hem tape; A tape placement step involves positioning the other side of the first tape body of the hem tape so that it is in contact with the area spanning the hem piece of the garment and the main body of the garment, The method includes a second heating step, in which the second tape body of the hem tape is heated and pressurized from the side opposite to the side on which the second adhesive layer is provided, using a heating and pressurizing means at a second temperature which is a temperature that overlaps between the first and second temperature zones, thereby bonding the hem tape to the garment. How to hem clothing.

2. A release liner is attached to the other side of the first tape body. In the first heating step, the heating means heats from at least one of the upper surface of the release paper and the side of the second tape body opposite to the side on which the second adhesive layer is provided. The method for hemming a garment according to claim 1.

3. In the first heating step, a heat-resistant sheet is placed on the other side of the first tape body, and the sheet is heated by the heating means from at least one side opposite to the side of the second tape body on which the second adhesive layer is provided. The method for hemming a garment according to claim 1.

4. The second tape body has a second adhesive layer provided only in the predetermined width. In the first heating step, the heating means heats the portion of the second tape body that does not correspond to the predetermined width. A method for hemming a garment according to claim 1, claim 2, or claim 3.

5. The second tape body has a second adhesive layer provided only in the predetermined width. In the first heating step, the portion of the second tape body that does not correspond to the predetermined width is heated by the heating means at a temperature higher than the upper limit temperature of the first temperature range and for a heating time longer than the predetermined heating time, so as to cause the thermoplastic adhesive to lose its re-adhesion ability. A method for hemming a garment according to claim 1, claim 2, or claim 3.

6. The second tape body has a second adhesive layer provided only in the predetermined width. The first tape body is formed within a range corresponding to the predetermined width. A method for hemming a garment according to claim 1, claim 2, or claim 3.

7. The release paper is provided with a background of thermal ink, a first set of character information printed on the background in the same color as the release paper or in white, and a second set of character information printed in the same color as the thermal ink. The method for hemming a garment according to claim 2.

8. A tape fitting step involves aligning one side of a first tape body, which has a first adhesive layer made of a thermoplastic adhesive that generates adhesive strength in a first temperature range, with the side of a second tape body on which the second adhesive layer is provided, which has a second adhesive layer made of a predetermined adhesive that generates adhesive strength in a second temperature range that has a lower limit temperature higher than the lower limit temperature of the first temperature range and includes a temperature range that overlaps with the first temperature range, with the side of the second tape body on which the second adhesive layer is provided, for at least a predetermined width on one side. The process includes a tape bonding heating step in which the first tape body and the second tape body are bonded together by heating the other side of the first tape body and the side of the second tape body opposite to the side on which the second adhesive layer is provided with a heating means at a temperature within the first temperature range and not overlapping with the second temperature range, so that only the first adhesive layer is dissolved. A method for manufacturing hemming tape.

9. A method for hemming a garment, comprising: a first tape body having a first adhesive layer on both sides provided with a thermoplastic adhesive that generates adhesive strength in a first temperature range; and a second tape body having a second adhesive layer on at least one side of a predetermined width provided with a predetermined adhesive that generates adhesive strength in a second temperature range with a lower limit higher than the lower limit temperature of the first temperature range and including a temperature range overlapping with the first temperature range; and a method for fixing the hem portion of a garment with a hem tape, wherein the tape is bonded to one side of the second tape body. A tape placement step involves positioning the other side of the first tape body of the hem tape so that it is in contact with the area spanning the hem piece of the garment and the main body of the garment, The tape application heating step involves heating and pressurizing the second tape body of the hem tape from the side opposite to the side on which the second adhesive layer is provided, using a heating and pressurizing means at a second temperature which is a temperature that overlaps between the first and second temperature zones, thereby bonding the hem tape to the garment. How to hem clothing.

10. A first tape body having a first adhesive layer on both sides made of a thermoplastic adhesive that generates adhesive strength in a first temperature range, The present invention comprises a second tape body having a second adhesive layer, which is made of a predetermined adhesive that generates adhesive strength in a second temperature range that has a lower limit higher than the lower limit temperature of the first temperature range and includes a temperature range that overlaps with the first temperature range, provided on at least one side of the second tape body to a predetermined width, with the one side of the second tape body being adhered to the first tape body. Hemming tape.

11. The first tape body has release paper attached to the side opposite to the side that is adhered to the second tape body. Hemming tape according to claim 10.

12. The second tape body has a second adhesive layer provided only in the predetermined width. The second tape body is adhered to the first tape body in a range that does not correspond to the predetermined width. Hemming tape according to claim 10 or claim 11.

13. The second tape body has a second adhesive layer provided only in the predetermined width. The first tape body is formed within a range corresponding to the predetermined width. Hemming tape according to claim 10 or claim 11.

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