JP5309246B2 - Manufacturing method of enamel leather products - Google Patents

Description

  The present invention relates to various cases such as bags and wallets, footwear such as shoes, and other methods for producing enamel leather products.

  Conventionally, glossy silver-coated leather-like sheets have been used in various leather products such as shoes and bags because of their high-class feeling. As a method for producing a leather-like sheet with a silver surface, the texture of the leather-like sheet obtained by using a method called a dry method on the surface of the base material is flexible, and the process is simple. It is used for. Also, among leather-like sheets, the one with high gloss and luster on the surface that gives the skin layer smoothness and transparency to express a high-class feeling is called enamel tone and is one of high added value. It is evaluated as.

  In general, as shown in FIG. 5, in a raw fabric (a leather-like sheet with a silver surface), dyeing is performed with a desired color (single color) (step S1), and the surface side (silver surface side) ) Is sprayed with urethane or the like (step S2), dried (step S3), cut into a desired part shape (step S4), and assembled by sewing or the like (step S5). A partial product body is created and final secondary processing or the like is performed to obtain a product (step S6).

  In addition, the method of manufacturing enamel leather products in which enamel paint is applied to such a silver surface has a single color, so for example, a seal is attached to the inner side surface of a shoe to form a protective design (patent) Reference 1).

  Note that the above-described assembly includes bending and bending processes by bonding or pressing of cut parts. Further, as the secondary processing, for example, in the case of shoes, there is adhesion of a rubber bottom, and in the case of heels, there are assembly of a shoulder metal fitting or an emblem.

JP 2011-036561A

  However, in the manufacturing method of the enamel leather product described above, the enamel processing is performed in the state of the original fabric (sheet), and then the cutting processing and the sewing processing are performed for a predetermined product, as described above. There is a problem that the color is monochromatic, it is difficult to apply a pattern or the like, and the design variation is poor.

  Then, an object of this invention is to provide the manufacturing method of the enamel leather product which can form an irregular and irregular color pattern, can ensure the design variation, and can improve versatility.

  In order to solve the above-mentioned problems, an enamel leather product manufacturing method according to the present invention includes an enamel processing step for forming an enamel layer on the surface of an undyed silver-coated leather-like sheet, and an enamel-processed silver-coated leather-like sheet. Cutting step according to the shape of the part for a given product, assembling step for assembling the cut product parts to form a primary product, and applying a light-colored dyeing solution from the back side of the assembled primary product to the silver side. A base dyeing step for soaking, a primary drying step for drying the light-colored dyeing solution of the primary product after the base dyeing, and a step of soaking the dark dyeing solution in the lower layer of the enamel layer of the primary product after the primary drying A ground dyeing step and a secondary drying step of drying the primary product after the upper dyeing with a dark dyeing solution are characterized.

  In addition, the method for producing an enamel leather product of the present invention comprises an enamel processing step for forming an enamel layer on the surface of an undyed silver-coated leather-like sheet, and the enameled silver-coated leather-like sheet for a predetermined product. A cutting step for cutting in accordance with the shape of the part, an assembling step for assembling the cut product parts to form a primary product, and a base dyeing step for soaking a light-colored dyeing solution from the silver side of the assembled primary product; A primary drying step for drying the light-colored dyeing solution of the primary product after the base dyeing, an upper dyeing step for soaking the dark dyeing solution in the lower layer of the enamel layer of the primary product after the primary drying, and an upper dyeing And a secondary drying step of drying the subsequent primary product with the dark dyeing solution.

  Furthermore, the manufacturing method of the enamel leather product of the present invention includes a base dyeing step in which a light color dye solution is soaked into the silver surface of the unstained leather-like sheet, and a light color dye solution of the primary product after the background dyeing. The primary drying step for drying, the enameling step for forming an enamel layer on the surface of the leather-like sheet with silver surface after the primary drying, and the enameled leather-like sheet with silver surface are matched to a predetermined product part shape. A cutting step for cutting, an assembling step for assembling the cut product parts to form a primary product, and an upper dyeing step for immersing a dark dyeing solution in the lower layer of the enamel layer of the primary product after assembling; And a secondary drying step of drying the primary product after the upper dyeing with a dark dyeing solution.

  According to such a method, it is possible to easily form irregular and irregular portions with different shades by expressing the dyeing on the silver side step by step, and the apparent shades of the pattern. As a result, it is possible to float spots, to ensure design variations, and to improve versatility.

  The method for producing enamel leather products of the present invention can form irregular and irregular colored patterns, can ensure design variations, and improve versatility.

The enamel leather shoes as an enamel leather product using the manufacturing method of the enamel leather product of this invention are shown, (A) is a side view of the leather body part after base dyeing, (B) is a side view of the leather body part after main dyeing processing. (C) is a side view of a shoe as a final enamel leather tail product. It is a flowchart of the work process which shows the manufacturing method of the enamel leather product of this invention. It is a flowchart of the work process which shows the 2nd manufacturing method of the enamel leather product of this invention. It is a flowchart of the work process which shows the 3rd manufacturing method of the enamel leather product of this invention. It is a flowchart of the work process which shows the manufacturing method of the conventional enamel leather goods.

  Next, the manufacturing method of the enamel leather product which concerns on one Embodiment of this invention is demonstrated with reference to drawings. The embodiments described below are preferred specific examples in the method for producing enamel leather products of the present invention, and may have various technically preferred limitations, but the technical scope of the present invention is particularly limited to the present invention. Unless stated to limit the invention, it is not limited to these embodiments. In addition, the constituent elements in the embodiments shown below can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the embodiment described below does not limit the contents of the invention described in the claims.

  FIG. 1 shows an enamel leather shoe as an enamel leather product using the method for producing an enamel leather product of the present invention, FIG. 1 (A) is a side view of a leather main body after base dyeing, and FIG. 1 (B) is after dyeing processing. FIG. 1C is a side view of a shoe as a final enamel leather tail product. In the following description, men's shoes as enamel leather products will be described. For example, in addition to footwear such as women's pumps, high heels and boots, cases such as bags, purses or accessory cases, belts, etc. It can be applied to other various leather products in general. Here, the state of the primary product differs depending on the final enamel leather product, for example, the state of the shoe upper before attaching the shoe sole such as rubber in the case of shoes, the handle (shoulder not subjected to enamel processing in the case of heels) A state where a string (including a string) is removed is shown. On the other hand, for example, when a fastener, an emblem, or various metal fittings are attached to form a finished product, such as a wallet or an accessory case, the finished product may be in a finished product state.

  In FIG. 1, reference numeral 1 denotes a tip portion of a shoe, 2 an upper portion, and 3 a heel portion, which are sewed in a three-dimensional shape to form a shoe upper 4. The tip part 1, upper part 2 and collar part 3 are cut into their respective shapes after directly enamelling the silvery surface of the leather-like sheet without any dyeing process. It is processed and sewn with a sewing machine or the like.

  In this sewing state, that is, the shoe upper 4 which is an enamel leather portion, the whole is immersed in a light-colored dyeing liquid of a desired color to perform background dyeing. In this background dyeing, the dyeing solution is infiltrated from the back side of the skin and the dyeing solution is exposed on the silver side. In addition, as shown in FIG. 1 (A), the displayed color at this time is expressed in a lighter hue than that in the final product by adjusting the color of the dyeing solution or the permeation time.

  Here, in the dyeing solution used for the base dyeing, a mixture of leather thinner and a metal-containing acid dye is used, and the metal-containing acid dye is mixed in a proportion of about 3 to 4% by weight with respect to the leather thinner. Use a light-colored dyeing solution. The mixing ratio (compounding) of the metal-containing acid dye to the leather thinner varies depending on the color. For example, it is about 3% by weight for black or navy, and 4% by weight for red (engine). Before and after, etc.

  Then, the shoe upper 4 after the base dyeing performs the upper dyeing after stabilizing the base dyeing once through the drying process.

  For upper dyeing, a known sponge for skin dyeing processing in which a dark dyeing liquid of the same color as that at the time of base dyeing is impregnated from the silver side of the shoe upper 4 is used to coat a desired part by hand coating. As shown in FIG. 1 (B), the dark dyeing solution is soaked in the lower layer of the enamel layer so as to cause color unevenness.

  Here, the dyeing liquid used for the upper dyeing uses a mixture of a leather-containing thinner and a metal-containing acid dye and a solvent pigment, and the leather-containing thinner contains a metal-containing acid dye of about 7% by weight. Is mixed at a ratio of about 3% by weight to obtain a dark dyeing solution. The mixing ratio (compounding) of the metal-containing acid dye to the leather thinner varies depending on the color. For example, it is less than 7% by weight for black or cocoon, and 7% by weight for red (engine). This is the case.

  As shown in FIG. 1C, the shoe upper 4 after the upper dyeing can be used as an enamel men's shoe 6 as a final product by assembling a shoe sole 5. In addition, if the shoelace 7 is mounted before the base dyeing is performed, it is possible to give a sense of unity with the overall color of the enamel men's shoes 6.

  Thus, in the enamel men's shoes 6 of this invention, as shown in FIG. 2, the enamel processing step (step S11) which forms an enamel layer on the surface of the leather-like sheet | seat with a silver surface which is not dye | stained, enamel A cutting step (step S12) for cutting the processed leather-like sheet with silver surface according to the tip part 1, upper part 2 and heel part 3 as predetermined product part shapes after drying, and cutting the product parts An assembling step (step S13) for assembling and forming the shoe upper 4 as a primary product, a base dyeing step (step S14) for soaking a light-colored dyeing solution from the back side of the assembled primary product into the silver side, and a base dyeing A primary drying step (step S15) for drying the light-colored dyeing liquid of the subsequent primary product, and the dark-colored dyeing liquid is immersed in the lower layer of the enamel layer of the primary product after the primary drying. By performing the ground dyeing step (step S16) and the secondary drying step (step S17) for drying the primary product after the upper dyeing in this order, an irregular and irregular color pattern is formed. It is possible to secure design variations and improve versatility.

  By the way, in the above-described embodiment, the case where the light color dyeing solution is immersed from the back side to the silver side in the base dyeing step (step S14) in which the light color dyeing solution is immersed in the assembled primary product has been described. For example, as shown in FIG. 3, the light color dyeing solution may be immersed in the lower layer of the enamel layer by spraying the light color dyeing solution from the silver surface side of the assembled primary product.

  In this case, compared with the case where the light color dyeing solution is soaked from the back side, the so-called color fading can be improved well.

  In the above-described embodiment, the enamel layer is first formed on the surface of the leather-like sheet that has not been dyed.For example, as shown in FIG. A light-colored dyeing solution may be sprayed from the surface side.

  In this case, as compared with the case where the background dyeing is performed after enamel processing, it is possible to easily dye with a desired color, and it is difficult to discolor, and the characteristics of the enamel layer can be maintained high.

  As described above, in the method for producing an enamel leather product of the present invention, the surface of the enamel leather product is irregularly or irregularly formed by separately performing the base dyeing with the light color dyeing solution and the upper dyeing with the dark color dyeing solution. Color patterns can be formed, design variations can be ensured, and versatility can be improved.

DESCRIPTION OF SYMBOLS 1 ... Tip part 2 ... Upper part 3 ... Buttocks 4 ... Shoe upper (primary product)
5 ... Shoe sole 6 ... Shoe (enamel leather product)
7 ... Shoelace

Claims (3)

  An enamel processing step for forming an enamel layer on the surface of a leather-like sheet with a silver surface that is not dyed, a cutting step for cutting the enameled leather-like sheet with a silver surface according to a predetermined product part shape, and cutting Assembly step of assembling the manufactured product parts to form a primary product, a base dyeing step in which a light color dye solution is soaked from the back side of the assembled primary product into the silver side, and a light color of the primary product after base dyeing A primary drying step for drying the dyeing solution, an upper dyeing step for immersing the dark dyeing solution in the lower layer of the enamel layer of the primary product after the primary drying, and a dark dyeing solution for the primary product after the upper dyeing And a secondary drying step of drying the enamel leather product.   An enamel processing step for forming an enamel layer on the surface of a leather-like sheet with a silver surface that is not dyed, a cutting step for cutting the enameled leather-like sheet with a silver surface according to a predetermined product part shape, and cutting Assembly step for assembling the manufactured product parts to form a primary product, a base dyeing step for soaking a light color dye solution from the silver side of the assembled primary product, and a light color dye solution for the primary product after the background dyeing A primary drying step for drying, an upper dyeing step for immersing the dark dyeing solution in the lower layer of the enamel layer of the primary product after the primary drying, and a dark dyeing solution for drying the primary product after the upper dyeing A method for producing enamel leather products, comprising: a secondary drying step.   A base dyeing step in which a light-colored dyeing solution is immersed in the silver surface of a leather-like sheet with a silver surface, a primary drying step in which the light-colored dyeing solution of the primary product after the base dyeing is dried, and silver after the primary drying An enameling step for forming an enamel layer on the surface of the leather-like sheet with a surface, a cutting step for cutting the enameled leather-like sheet with a silver surface according to a predetermined product part shape, and the cut product part An assembling step to form a primary product by assembling, an upper dyeing step in which a dark dyeing solution is immersed in the lower layer of the enamel layer of the primary product after assembling, and a dark dyeing of the primary product after the upper dyeing A secondary drying step of drying the liquid, and a method for producing an enamel leather product.