JPS6223800A - Manufacture of leather picture using leather as substrate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (a) Industrial application field This invention transfers an original image onto the surface of a rectangular leather substrate,
Techniques such as embossing, dyeing, resist dyeing of wax, dyeing cracks in wax, and stamping on the back are colored and waterproofed using water-soluble resin paints or auxiliary agents, and this is then applied with pressure.
This invention relates to a method for producing leather paintings using solid hardened and shaped leather as a substrate.

(B) Conventional technology Conventionally, in the case of paintings, etc., the substrate has been coated with an oil-based coating in the case of oil paintings, canvas, watercolor paintings, crayon drawing paper, 1 Japanese painting paper, 1 colored paper.

They were painted with various paints using silk cloth, boards, etc. as substrates.

In Japanese paintings, mineral pigments such as mineral pigments are used with glue, oil paints are mainly mineral pigments with vegetable oil, watercolors are made with gum arabic, and crayons are used with wax to fix each pigment on the painting surface. A sense of mass was created by the pigment being piled up using a medium.

On the other hand, leather handicrafts include relief engraving, engraving, mosaic,
These methods include engraving, embossing, and dyeing, and using the patterned and dyed leather as a material, parts such as fibers, rubber, plastic, and metal can be combined to create wallets, bands, handbags, clothing items, etc. The goal is to create works such as book covers, artificial flowers, and interior decoration items.

It is not a Japanese painting or an oil painting, but rather a simple drawing on leather.The vehicle inspection, which combines leather handicraft techniques and painting techniques to create a pure painting, was not produced using traditional techniques, but this leather When trying to produce a car inspection, the original image is transferred onto the surface of a leather substrate, the relief and engraving are repeated, and the dye is used to thoroughly dye and mix the dyes, and then the paint is used to create a unique sense of mass. When this process is repeated, the leather substrate becomes uneven depending on the thickness of the leather, the degree of tanning of the original or leather, the location of use, etc., and pressure correction must be applied during vehicle inspections that require solid hardening on a flat surface.

In addition, the surface of the leather is made up of fine fibers, such as the grain layer, the rope-like layer, and the boundaries between these layers, where there are many voids such as hair roots.This fiber structure is the weakest and most fragile, and is prone to mold growth and is uneven. Many leathers have a number of drawbacks, such as being sensitive to moisture, highly absorbent, and shrinking in some places, even if they are the same leather.Most leathers are sensitive to alkalis. ``This invention uses vegetable tanned leather, which has a high plasticity, as a substrate, embosses the original image, embodies it to ensure that it is embossed, dyes it, and then uses water-soluble resin paint (water-soluble resin paint is As a medium, extremely fine resin particles are suspended in water, and as the water evaporates, these water-soluble resin particles combine with each other to form an elastic film and adhere to the pigment. It is a water-soluble paint that is wrapped in a water-soluble paint that fixes it on the screen. When it dries, it becomes water-resistant and quick-drying.
Even if it is piled up thickly for 20 minutes, it dries to the inside within 2 to 4 hours.It is water resistant, weather resistant and extremely durable.The resin film protects the pigment, so it is resistant to changes in the outside air and ultraviolet rays, so there is no risk of discoloration or fading. Liquitex DIRECTEDBY KUN (Liquitex DIRECTEDBY KUN)
I, OKAMURA 1972 PRINTED I
The original drawing was created using references from N JAPAN. The purpose is to solidify and stabilize the relief, correct the distortion of the leather substrate, and maintain the hardened flat surface to complete the vehicle inspection as a painting.

2) Means for Solving Problems This invention will be explained based on the drawings. In Figure 1, vehicle inspection is mainly made of vegetable tanned cowhide leather with a thickness of about 2 to 5 mm (the thickness varies depending on the work). A rectangular leather substrate 1 is used. Based on the original drawing 2, copy it onto tracing paper and transfer it to the leather surface with a maegoko, iron brush, hard pencil, etc. to draw lines. In this case, use a water brush to moisten the surface of the leather and soften the entire surface to an appropriate degree. Next, the outside of the relief 3 is concave along the lines of the original picture 2 while raising the lines of the original picture 2.With the thickness of the leather being limited, one side is concave to increase the height. , is a technique that makes the lines appear raised, and is the basic principle behind the unevenness that is created while the leather is being tightened, even when the leather dries. This is an important feature of vehicle inspection, as it has a very important influence not only on the subsequent dyeing process, but also on the sense of mass of the coloring created using water-soluble resin paints.

Once Embossing 3 is finished and the overall image of the vehicle inspection becomes clear, dyeing begins. A basic dye with good binding is first used as a dye for vehicle inspection using vegetable tanned cowhide leather as the leather substrate 1.

Since this leather is negatively (-) charged, it electrostatically neutralizes and combines with the positively (+)-charged basic dye.
Basic dyes generally have a clear color tone, but the disadvantage is that they tend to discolor when exposed to sunlight, but this can be repaired by applying water-soluble resin paint or an auxiliary agent in a later step. The dyeing process for vehicle inspection begins with the first wipe-dye, which is then lightly wiped with a soft cloth.As a result, shading and lightness naturally appear on the screen, creating the unique beauty of 1 (blur) leather vehicle inspection.This continues until the end. This is one of the unique characteristics of vehicle inspections that has a significant impact.

In the current dyeing process, it is enough to get the general tone, and after looking at the overall color tone, we start waxing 4. In ordinary dyeing, resist dyeing is the main purpose, but in the case of lanes, waxing 4 The leather is cracked with wax, imprinted with dye or vegetable dye, and applied with a mordant to establish the dyed pattern of subtle cracks on the leather surface, seeking a unique beauty that is neither Japanese painting nor oil painting. This is an attempt to assert and prove that it is a lane. This wax 4 is made by imprinting a waxing dye on the leather surface (melting the wax and applying the wax to the leather surface with a wax brush), and then washing it with water to remove the wax. Melting point of wax for wax: Japanese wax 52.0~53℃, Yuro 40~
53 degrees Celsius, paraffin wax 38-65 degrees Celsius, room temperature, climate, and other various conditions, and uncalculated accidental cracks in the wax should be utilized as something unique to the lane. Once the overall tone has been established, the back 5 part is engraved and indented without crushing the lines of the relief 3. The back 5 part on the leather surface becomes a small uneven surface and is dyed repeatedly. This increases dye absorption and deepens the color tone.

From this, the dyeing of the original painting 2 is further strengthened, and a complementary color is applied on top of it with water-soluble resin paint, and the original painting 2 is drawn and the image of the work is established, adding to the sense of mass created by the relief 3. There is excitement unique to each lane.

After the entire leather substrate 1 is completely dry, apply a water-soluble resin finishing aid to the leather substrate 1 using Senbake spray or the like.
Apply evenly to the surface. When this dries, the surface screen is completed, but the leather substrate 1 becomes uneven and distorted due to the modeler and fine engravings applied to the embossed parts 3 and the back 5. This must be corrected, solidified, and flattened. A water-soluble adhesive or a solidifying agent is thoroughly imprinted and applied from the back surface 6 of the leather substrate 1 so as not to damage the surface screen, especially the surface of the relief 3 and the uneven parts. Figure 8 to prevent damage to the part that contacts the lane surface completed with relief 3 in a half-dried state,
The fat film 10 and the cushion surface 1 in FIGS. 9 and 10
A lane is sandwiched between a flat plate 12 having a 100% carbon chloride and a smooth flat plate 13 to prevent the adhesive or solidifying agent applied to the half-dried back side 6 from adhering, and pressurized with an appropriate weight (approximately 10 to 9) to form a dry solid. After that, the decompressed leather substrate 1 is shaped and the lane is completed. Depending on the work, the order of the steps may be changed or omitted.

When further reinforcing the strength of the work, plywood 14 or cardboard 15 is pressed onto the back surface 6 of the leather substrate 1 with adhesive.

(E) Function The lanes configured as described above produce unique color tones through the reflection and absorption of light due to the engravings on the leather surface, and the mass impression created by dyeing or applying water-soluble resin paint to the reliefs. The color is more vibrant than an oil painting, and the accidental staining of the cracks caused by the wax creates a unique pattern of the lane.The water-soluble resin finishing agent used for the waterproof finish is water-resistant. It is highly durable, weather-resistant, acid-resistant, and oil-resistant, making it effective as a decoration, as an artist, and as a new painting.

(f) Effects of invention The development of a completely new field called lanes, which is neither oil painting nor Japanese painting, has opened up new uses for leather, not only in decoration and art, but also in the leather industry, and has greatly expanded the industry. Not only was it useful, but it also established a unique lane in the world of painting, turning the weakness of leather's plasticity into a positive. The development of water-soluble resin paints created by modern civilization, improvements in dyeing techniques, and leather craft techniques were integrated, and a new lane unique to Japan was created.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the lane surface. FIG. 2 is a perspective view of the surface of the lane after applying a hardening agent and press-bonding plywood or cardboard. FIG. 3 is a perspective view of the back side of the lane after applying a hardening agent and press-bonding plywood or cardboard. Figure 4 is a lane cross-sectional view. FIG. 5 is a cross-sectional view of a lane of plywood or cardboard coated with a hardening agent. FIG. 6 is a longitudinal sectional view of a lane, and FIG. 7 is a longitudinal sectional view of a lane after applying a hardening agent and bonding plywood or cardboard. FIG. 8 is a perspective view of the construction sandwiched between two lane plane plates. Figure 9 is a side view of the lane sandwiched between flat plates. FIG. 10 is a perspective view of the implementation sandwiched between lane plane plates. 1. Leather board 2, original lane drawing 3, embossed part 4, wax part 5, driven part 6, back side of the leather board 7, leather, cross section of the board 8, side part 9 of plywood or cardboard crimped with a hardening agent applied, hardening agent Coated plywood or cardboard pressure bonding back surface part 10, resin film 11, cushion surface 12, flat plate 13, smooth flat plate 14, plywood 15, cardboard

Claims (1)

[Claims] 1. Transferring the original picture onto the surface of a rectangular leather substrate, embossing it,
The original painting is embossed by dyeing, resist dyeing the wax, dyeing the cracks of the wax, and stamping the original painting or background, and then dyed and colored with water-soluble resin paints or auxiliary agents, making the leather substrate waterproof. A method of producing leather paintings using a substrate of leather that has been pressed, hardened, and shaped by sandwiching a flat plate with a membrane and a cushion part and a smooth flat plate. 2. A leather painting using a leather substrate according to claim 1, which is an oval leather substrate. 3. A leather painting using a leather substrate according to claim 1 or 2, which is a circular leather substrate. 4. A leather painting using the leather as a substrate according to claim 1, 2, or 3, which is a square leather substrate. 5. A leather painting using the leather as a substrate according to claim 1, 2, 3, or 4, which is a polygonal leather substrate.