JPH0566122B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a badge pen. More specifically, the present invention relates to a patch pen having a protruding resin layer formed in a predetermined pattern on a cloth. [Prior Art] Various types of badge pens have been used in the past. Among these Watu pens, Watu pens that have a protruding resin layer molded in a predetermined pattern on the fabric (hereinafter referred to as resin protruding Watu pens) are popular for their novel sensation of having a three-dimensional pattern emerging on the fabric. Recently, it has begun to be widely used in various clothing items, bags, and other accessories. Conventionally, these resin protruding watz pens are made by adhering a resin layer molded into a predetermined pattern to felt or resin-treated cloth, but since the pattern of the resin layer is quite elaborate, felt or resin-treated cloth is used. Conventional resin protruding patch pens using cloth as a base fabric have various problems as described below. (a) Base fabrics made of felt or resin-treated fabrics have a less luxurious appearance compared to elaborate patterns. (b) Resin protruding watz pens are made by attaching multiple patterns onto fabric and then cutting or punching out each unit pattern from the fabric, but with felt or resin-treated fabric, fibers and threads tend to be loose from the edges of the resin embossed watz pens. It won't shift and get dirty. Furthermore, these fibers are also scattered on the resin layer of the resin-protruded patch, significantly deteriorating the appearance of the resin-protruded patch. (c) There are small irregularities on the surface of felt and resin-treated cloth, and these irregularities impair the adhesion of the resin layer, and the irregularities are also reflected on the surface of the resin layer, causing the surface of the resin layer to deteriorate. It will no longer be smooth. (d) Watu pens must be more resistant to washing and other conditions of use than the clothing or accessories to which they are attached. However, general felt or resin-treated cloth does not necessarily have superior washing fastness to all types of clothing, accessories, and other articles. Also, when made of felt or wool, there is a problem in that the base fabric shrinks when washed. In order to overcome the drawbacks of resin-protruding patches using felt or resin-treated cloth as the base fabric, it has been proposed to use a leather-like sheet made of fibrous material and an elastic polymer. If one of these leather-like sheets with excellent dimensional stability and color fastness is used as a base fabric, a resin-embossed patch pen with excellent appearance and usability can be produced. However, in conventionally known leather-like sheets, the resin layer does not adhere sufficiently to the base fabric, resulting in poor durability of adhesion of the resin layer to the base fabric. This is particularly noticeable when the resin protruding watz pen includes a thin pattern, such as a name display in fine letters, and in this case, the durability of the resin layer's adhesion to the base fabric cannot be guaranteed. Therefore, in fact, conventionally known leather-like sheets cannot be used as the base fabric of the resin-protruding patch pen. On the other hand, Japanese Patent Publication No. 59-27434 discloses that foamed and colored elastic bodies of the same or different types are dispersed in islands on a fabric that is composed of an ultrafine fiber entangled body and an elastic body and has ultrafine fiber naps on the surface. A fabric having an integrated three-dimensional pattern is disclosed, and after applying a printing agent using printing technology (screen printing, roll printing, paper pattern printing, etc.) to impart the three-dimensional pattern to the base fabric, This indicates that intermediate drying is performed mainly for drying the printing agent and baking is performed mainly for foaming the foaming agent. The fabric disclosed in this publication is composed of an ultrafine fiber entangled body and an elastic body as a base fabric, and also uses a fabric with raised naps on its surface, and uses printing technology, so that the nape is entangled in the three-dimensional pattern. This improves the adhesion of the base fabric to the resin layer. However, since the three-dimensional pattern is formed from foam, and the shape of the three-dimensional pattern is fixed by an intermediate drying and baking process that is added separately after applying the printing agent, the adhesion of the pattern to the base fabric is insufficient. Without,
Furthermore, it is extremely difficult to provide a base fabric with an elaborate pattern such as a watz pen. [Problems to be Solved by the Invention] As is clear from the above, the conventionally known resin protruding patch pens have various problems. The present invention solves these problems and has excellent adhesion of the resin layer to the base fabric, i.e., excellent peeling resistance, is capable of expressing even elaborate patterns, and has excellent appearance and physical properties during use. The purpose is to provide an excellent resin protruding watz pen. [Means for Solving the Problems] As a result of intensive research in order to solve the above-mentioned problems, the present inventors have discovered that the anchoring effect of fibers on the resin layer can be used to attach the resin layer to the base fabric. The inventors have discovered that the above-mentioned problems can be solved by the method and have arrived at the present invention. That is, an object of the present invention is to provide a patch pen in which a non-foamed resin layer formed in an arbitrary pattern and made of a thermosetting resin or a reactive resin is provided protrudingly on one surface of a leather-like sheet. The sheet is made of ultrafine fibers of 0.5 denier or less and an elastomeric polymer, and the ultrafine fibers protrude on the surface in the form of raised naps, and the ultrafine fibers of the leather-like sheet are formed at the interface between the leather-like sheet and the resin layer. At least a part of the naps made of fibers have penetrated into the resin layer, and the shape of the protruding pattern seen in a cross section perpendicular to the plane of the leather-like sheet is such that when forming the pattern resin layer, This is achieved by a watz pen characterized by an inverted shape that substantially corresponds to the cross-sectional shape of the pattern recess of the mold used in the invention. As used herein, the term "leather-like sheet" refers to a fabric that is made of fibrous material and an elastic polymer and has an appearance and properties similar to leather, and these leather-like sheets may be encapsulated with woven or knitted fabrics as necessary. may have been done. Typical examples include Ecsaine manufactured by Toray Industries, Inc. and Lamousse manufactured by Asahi Kasei Corporation. It is a general term for all fibers used, regardless of the manufacturing method, and for example, the fibers may be non-woven fabrics (in the case of Ecsaine or Lamousse), woven fabrics, or knitted fabrics. The leather-like sheet used in the wax pen of the present invention has ultrafine fibers of 0.5 denier or less protruding from its surface in the form of raised naps. At least a portion of the resin penetrates into the resin layer and exerts an anchoring effect, thereby firmly fixing the resin layer to the leather-like sheet. In addition, since a leather-like sheet is used as the base fabric, the appearance is rich in luxury, and since the surface is smooth, the surface of the attached resin layer is also smooth, and when the fabric is cut or punched, the fibers do not come loose from the edges. There is no. In addition, if polyester fibers are used as the fibers used in leather-like sheets, leather-like sheets with good color fastness can be obtained, and wax pens made using these leather-like sheets have excellent durability when used for clothing, etc. have a sexual nature. As used herein, the term "arbitrary pattern" refers to patterns including various designs and characters. In recent wax pens, various designs and names are given on the wax pen, but the leather-like sheet used for the wax pen of the present invention has a large number of ultrafine fibers of 0.5 d or less protruding in the form of naps, and the number of them is small. A leather-like sheet with a normal apparent specific gravity has tens of thousands to hundreds of thousands of fibers per ¹ cm2 of its surface, so there are a large number of the above-mentioned napped microfibers in the resin layer that makes up the very thin letters and fine lines in the designs. can be invaded. For example, the number of piloerection is 10
In the case of a sheet with 10,000 fibers/ ^cm2 , even if a circular resin layer with a diameter of about 0.2 mm is independently attached to the leather-like sheet, there are approximately 30 microfibers in the circular resin layer. As a result, the circular resin layer is firmly fixed to the leather-like sheet. The leather-like sheet used as the base fabric preferably has an apparent density of 0.15 or more. If a leather-like sheet with an apparent density of 0.15 or less is used, the surface of the leather-like sheet will be too porous, resulting in a poor quality appearance, and the number of napped ultrafine fibers penetrating the resin will also be reduced, which is undesirable. The amount of the elastic polymer used together with the fiber in the leather-like sheet is preferably 1 to 60% based on the weight of the leather-like sheet. As will be made clearer in the method for producing a patch pen of the present invention described later, when the resin layer is attached to the leather-like sheet, a pressure equivalent to that of the leather-like sheet is applied, so in order to give elastic recovery to the leather-like sheet. It is necessary to use a high molecular weight elastomeric polymer. The amount of the elastomeric polymer is required to be at least 1% in order to achieve the above objective, and an amount of 60% or more is not preferable since it imparts a rubbery feel to the leather-like sheet. This high-molecular elastomer also serves to prevent the napped microfine fibers on the surface of the leather-like sheet from fraying during use. The resin layer used in the badge of the present invention may be made of any thermosetting resin or reactive resin. However, silicone rubber is usually used when dry cleaning resistance is required due to cost considerations, and vinyl chloride resin is used when dry cleaning resistance is not required. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings showing an embodiment of the emblem pen of the present invention. FIG. 2 is a plan view of an embodiment of the embroidery pen of the present invention, and FIG. 1 is a cross-sectional view taken along line - in FIG. 2. A character pattern "LAMOUS produced by ASAHI" 3, 3a made of a resin layer is attached to one surface 22a of the leather-like sheet 2 of the wax pen 1. Each character of "LAMOUS" 3 is approximately 8 mm square, and the width of each part of the character is approximately 1 mm.
0.5 on the surface 22a of the leather-like sheet 2.
mm protruding, each character of "produced by" 3a is approximately 2 mm square, and the width of each part of the character is approximately 0.1 mm.
, and protrudes about 0.5 mm above the surface 22a of the leather-like sheet, similar to the letters "LAMOS". The leather-like sheet 2 is a nonwoven sheet made of ultrafine fibers 2 of 0.5 denier or less and an elastic polymer, and has a basis weight of 200 g/m ² , an apparent density of 0.4, and a thickness of 0.5 mm. On the surfaces 22a and 22b of this leather-like sheet 2, napped ultrafine fiber fluffs 23a and 23b protrude. The number of fluffs is approximately 100,000 per ¹ cm2.
Due to the large number of fluffs 23a and 23b, the leather-like sheet 2 has a suede-like appearance and feel. The resin layers 3, 3a forming the aforementioned characters are made of silicone rubber. As shown in FIG. 1, a plurality of fluffs 23a have entered the bottom of the resin layers 3, 3a, and as a result, these fluffs 23a
The resin layers 3 and 3a are firmly fixed to the leather-like sheet 2 by giving an anchoring effect to the resin layer a. As mentioned above, even in the case of a fine character with a width of 0.1 mm like the character 3a, approximately 100 fluffs per 1 mm of length penetrate into the resin layer 3a, and as a result, the resin of the fine character Even the layers are firmly fixed to the surface of the leather-like sheet. Usually, as shown in FIG. 3, the cotton pen 1 shown in FIG. 2 is formed into a plurality of pieces 1a, 1b, . By cutting it out, it is formed into individual watz pens. In the watz pen of the present invention, fibers do not come loose from the periphery of the leather-like sheet on the base fabric. Next, a method for manufacturing a patch pen according to the present invention will be explained. FIG. 4 shows a mold 40 for forming a resin layer of a wax pen. Type 40 is usually a copper plate or brass with the desired pattern.
In the case of FIG. 4, inverted characters 30, 30a of "LAMOUS..." are engraved. Since it is engraved on copper or brass, it is possible to accurately mold even fine characters as small as 0.1 mm in width. For example, silicone rubber is applied onto the mold 40 engraved with a reverse pattern of a predetermined pattern, and the silicone rubber is embedded into the recesses of the engraved pattern, and then the excess silicone rubber on the surface of the mold 40 is wiped off. Take. Next, the fifth
The resin layer is fixed to the leather-like sheet using a hot press machine, which is schematically shown in the figure. That is, the mold 40 is placed on the lower plate 52 with the surface with the concave pattern facing upward. The leather-like sheet 20 is spread and placed on the upper side of the one mold 40 so as to be in close contact with it. Leather-like sheet 2
An upper plate 51 is disposed above 0. When silicone rubber is used as the resin layer 3, the lower plate 52 is heated to 165°C, and the upper plate 51 is heated to 165°C.
are heated to 135° C., and the upper plate 51 is pushed downward as shown by the arrow and kept in that state for about 40 seconds. As a result, the silicone rubber, which was initially in a fluid state, becomes solidified by heating. At the same time, as shown in FIG. 1, the fluff made of ultrafine fibers on the surface of the leather-like sheet 2 penetrates into the silicone rubber that is still in a fluid state, and as the silicone rubber solidifies, the resin layer made of silicone rubber is formed. 3,3a
The resin layers 3, 3a are firmly maintained by being buried therein like an anchor. At this time, if the leather-like sheet 20 contains an elastic polymer, the upper roll 5
When the pressure at step 1 is removed, the leather-like sheet 20 recovers elastically and substantially returns to its original thickness. In this way, a leather-like sheet 20 having a plurality of patterns 3, 3a fixed thereon is obtained, and by cutting or punching this leather-like sheet 20 at the peripheral portion 24 of each wafer pen 1, a wafer pen 1 is obtained. In the wax pen of the present invention, as described above, the mold is provided with a recessed part with a desired pattern, a resin in a fluid state is embedded in the recessed part, and the leather-like sheet is brought into close contact with the mold, thereby raising the nap of the leather-like sheet. The resin is introduced into the resin in a fluid state, and the resin is heated to solidify the resin in that state. Therefore, the raised naps of the leather-like sheet are reliably embedded in the resin, and the peel strength of the formed pattern from the leather-like sheet can be significantly improved. Furthermore, as the resin solidifies in the mold, the shape of the resulting pattern is essentially the inverse of the recesses in the mold, thus making it possible to accurately reproduce the shape of the recesses in the mold; As a result, it is possible to give the leather-like sheet a precise pattern within the range of the technology for forming the concave portions of the mold. This means that it is possible to provide a waza pen with a pattern so precise that it cannot be seen in conventional waza pens. In addition to engraving a copper or brass plate, the mold 40 may be manufactured by using a photosensitive resin, such as APR resin manufactured by Asahi Kasei Kogyo. That is, first, a film 51 is made by photographing a desired pattern in its original size. In this case, a film 51 is prepared in which the light does not pass through the portions corresponding to the concave portions of the mold 40, that is, the portions corresponding to the pattern, and through which light passes through the other portions (portion 52 in FIG. 6a). Next, as shown in FIG. 6a, the film 51 is placed on the lower glass plate 56 with the film surface facing upward. This film 51 is closely covered with a transparent cover film 54, a photosensitive resin (in an uncured state) is poured from above, and the film is squeegeeed to a constant thickness using a bucket edge.
Furthermore, a base film 55 is laminated on top of this using a roll, and the top of the base film 55 is pressed with an upper glass plate 57. Next, as shown in FIG. 6b, back exposure is performed for several seconds using only the upper ultraviolet lamp 58 to form a back-decomposition layer. Relief exposure is performed using the lower ultraviolet lamp 59 at the rear thereof, and a relief (image area) is completed. That is, the light from the lower ultraviolet lamp 57 passes through a portion 52 of the film 51 and is irradiated onto the uncured photosensitive resin, converting that portion into a cured photosensitive resin 60. The uncured resin 53 remains as it is. Next, as shown in FIG. 6c, the cover film 54 is removed together with the film 51, and the uncured resin 53 is removed by spraying a weak alkaline solution with the relief surface facing down. In this way, a mold 40 having recesses corresponding to the desired pattern is obtained. In order to reliably harden the concave portions corresponding to the pattern on the mold 40, it is preferable to further perform post-exposure using an ultraviolet lamp 62 as shown in FIG. 6d. This photosensitive resin plate can be used as a mold as it is, but if there are problems with heat resistance or durability, you can use a thermosetting resin to copy the pattern on the photosensitive resin plate and make a mold. This mold may be used to make the watz pen. Making a mold for a patch pen using a photosensitive resin requires initial equipment costs, but is preferable because it can be done more quickly and at a lower cost than the engraving method. [Example] Specific examples of the badge pen of the present invention will be shown below, and the performance will be compared with comparative examples. Example 1 A nonwoven fabric having a three-dimensional entangled structure was produced using a 0.1 d polyethylene terephthalate ultrafine fiber by a paper-making method, after encapsulating a fabric made of polyethylene phthalate fibers. The nonwoven fabric was impregnated with polyurethane to obtain suede-like artificial leather having a striated hole structure. The ratio of fiber to polyurethane in this suede-like artificial leather is 95% to 5%, and the basis weight is
200g/m ² , filling density 0.4 and thickness 0.5mm. A pattern consisting of the letters "LAMOUS produced by ASAHI" was formed on one surface of this suede-like artificial leather by the manufacturing method explained with reference to FIGS. 4 and 5, and a patterned sheet as shown in FIG. 3 was obtained. Ta. The height of each letter protruding from the surface of the suede-like artificial leather is 0.5 mm, and the maximum thickness or width of the letters is 1 mm and the minimum is 0.1 mm. Thereafter, a wafer pen having a shape as shown in FIG. 2 was made by punching the sheet provided with a large number of patterns as shown in FIG. 3, and this was used as the waza pen of Example 1. Example 2 The ratio of fibers and polyurethane in the suede-like artificial leather used as the inner base fabric in Example 1 was determined.
Example 2 was prepared by making the wax pen shown in FIG. 2 under the same conditions except that the ratio was 70% to 30%. Comparative Examples 1, 2 and 3 In Comparative Example 1, polyethylene terephthalate long fiber taffeta (75d/36f x 75d/36f/90 pieces/inch x 100
In Comparative Example ² , wool curly felt (fabric weight 300 g/m ² , thickness 1.0 mm) was used as the base fabric, and the other conditions were the same as in Example 2. A wax pen as shown in FIG. 2 was manufactured according to the conditions. In Comparative Example 3, polyethylene terestalate fibers having a fineness of 1 d were used, and other conditions were similar to those of Example 2 to produce a patch pen as shown in FIG. 2. The appearance and peeling resistance of the resin part to the base fabric of Example 1.2 and Comparative Example 1.2.3 were examined, and the results were
Shown in the table.

[Table] As is clear from Table 1, the patch pen of Example 2 has excellent peeling resistance and overall excellent appearance. On the other hand, Example 1 has performance similar to Example 2, but the resin layer is slightly buried in the base fabric, and overall it lacks a sense of luxury compared to Example 2, but there is no problem in terms of commercial value. do not have. This is because pressure is applied when fixing the resin layer to the base fabric.
This is believed to be because the base fabric of Example 1 had a low content of the elastic polymer (polyurethane in this case), so the base fabric was plastically deformed as it was. On the other hand, in Comparative Example 3, the peeling resistance is similar to Example 2 in the case of bold letters, but is significantly inferior in the case of thin letters. Furthermore, since the fibers used are thick, they protrude through the resin layer, significantly worsening the appearance of the resin layer. The patch pens of Comparative Examples 1 and 2 have a problem in that the peeling resistance is poor and the appearance of the edge of the patch is not dirty. The wax pens of Example 1.2 and Comparative Example 1.3 use a base fabric made of polyethylene terephthalate fiber, so they have excellent color fastness and dimensional stability.
Therefore, when using the patch pen, the color does not fade or the dimensions change depending on the usage conditions of the clothes or accessories to which the patch pen is attached. On the other hand, the patch pen of Comparative Example 2 discolors and shrinks when clothes and accessories are exposed to severe usage conditions such as washing, which significantly deteriorates the quality of the patch pen. [Effects of the Invention] Since the patch pen of the present invention is constructed as described above, it has excellent peeling resistance and has an excellent appearance on both the base fabric surface and the resin surface. Furthermore, the color does not fade or shrink even when the wax pen is used as clothing or accessories.

[Brief explanation of the drawing]

FIG. 1 is a sectional view taken along the line - in FIG. 2, schematically showing the structure of an embodiment of the emblem of the present invention.
FIG. 2 is a plan view of the wax pen shown in FIG. 1. FIG. 3 is a plan view showing a sheet on which a plurality of the emblems shown in FIG. 2 are arranged before individual emblems are punched out. FIG. 4 is a perspective view showing a mold used in one embodiment of the method for manufacturing the waza pen shown in FIG. 2. FIG. 5 is a schematic front view of an apparatus used to carry out the method of manufacturing a patch pen of the present invention using a mold. Figures 6a to 6d are schematic cross-sectional views illustrating in detail another method for manufacturing the mold shown in Figure 4. DESCRIPTION OF SYMBOLS 1... Watu pen, 2... Leather sheet, 3, 3a... Resin layer, 20... Leather-like sheet having a plurality of wax pens, 30, 30a... Carved pattern, 40... Type,
53...Uncured photosensitive resin, 58, 59, 62...
Ultraviolet lamp, 60...Cured photosensitive resin.

Claims (1)

[Claims] 1. A patch pen in which a non-foamed resin layer made of a thermosetting resin or a reactive resin is formed into an arbitrary pattern and protrudes from one surface of a leather-like sheet, and the leather-like sheet is 0.5 denier or less. The ultrafine fibers are made of ultrafine fibers and an elastic polymer, and the ultrafine fibers protrude in the form of naps on the surface of the ultrafine fibers.
At the interface between the leather-like sheet and the resin layer, at least a part of the naps made of ultrafine fibers of the leather-like sheet penetrate into the resin layer, and the protruding pattern is formed on the plane of the leather-like sheet. A patch pen characterized in that the shape seen in a vertical cross section is an inverted shape substantially corresponding to the cross-sectional shape of the pattern recess of the mold used when forming the pattern resin layer.