CN106042753A - Manufacturing process for leather carving picture - Google Patents

Abstract

The invention discloses a process for making leather carving paintings, which comprises the following process steps: 1) skin selection; 2) wetting; 3) drawing tread patterns; Filling with three-dimensional effect; 7) framing. The invention highly integrates the production process of leather carving painting, so that the whole picture has ups and downs, clear layers, good brightness, smooth lines, prominent light and dark contrast, rich color materials, and the process of mosaic stitching and channeling realizes the picture color and relief process The high degree of integration has achieved an unprecedented display effect of leather carving and painting pictures.

Description

A kind of production process of leather carving painting

Technical field:

The invention relates to the field of leather product processing technology, in particular to a manufacturing technology of leather carving and painting.

Background technique:

According to historical records, leather painting originated from the period when nomads lived by water and grass. The leather military maps, leather decorative paintings and living utensils used by Genghis Khan’s army during the expedition are called by historians as the most valuable Mongolian culture in history. With the improvement of productivity, Mongolian leather goods are gradually integrated into the Mongolian and Han people's aesthetics from daily necessities. Mongolian nobles use various leathers to decorate Mongolian tents. Leather crafts are everywhere and become a symbol of status. Leather paintings at this time The craftsmanship is still in a rough and relatively primitive state. In the late Yuan Dynasty, Mongolian culture gradually merged with European Christian culture and West Asian Islamic culture. They imitated European oil paintings and Islamic silk paintings, and created a series of leather decorative paintings by using the durable natural characteristics of cowhide. In addition to being used for daily home decoration, they also Used in the exchange of market items. After the fall of the Yuan Dynasty, in addition to Europe, West Asia, and Central Asia, leather painting crafts became a small-scale collection of art by the Mongolian and Tibetan people due to historical reasons, such as human skin thangka, deerskin thangka and cowhide thangka. reflect.

The foreign leather craft is to first carve a piece of wood into a certain shape, then cover it with leather, press the leather tightly on it with a special machine, and finally paint it. The finished work in this way is complicated and expensive. The production of this kind of leather painting is mainly: use the best leather, cut it into a certain shape, paint the pattern on the leather with colored paint to form a leather painting, or press, grind and carve the leather to form a pattern according to the requirements of the design. The sense of space in the painting is not strong, and the picture is not rich enough.

Also as the application number is: 96120241.6 patent of invention discloses a method for making corium carvings, comprising: skin selection, wetting, drawing, rewetting, engraving, dyeing, rewetting, three-dimensional production and other steps, the method Wetting needs to be done many times in the process, and the operation process is complicated, especially after wetting. In order to ensure the dyeing effect, it needs to be treated with formaldehyde color fixing agent. The finished product has a strong smell, pollutes the environment, and affects the appreciation effect. In the three-dimensional production step in the method, after the leather is wetted, the elastic material is only pasted on the raised position on the back of the leather. Although the three-dimensional effect can be increased, the lines are blurred, the lines of the whole picture are not clear, and the visual effect is not ideal.

Moreover, the currently disclosed leather painting processing techniques are single, the brightness of the picture is poor, the lines are not smooth, the contrast between light and dark is not prominent, the color material is single, the three-dimensional effect is not ideal, and the overall visual effect cannot meet the aesthetic needs of modern people.

Invention content:

The object of the present invention is to provide a kind of manufacturing process of leather carving painting.

The present invention is implemented by the following technical scheme: it includes the following process steps: 1) skin selection; 2) wetting; 3) depicting the stepping map; 4) knocking the contour bas-relief; 5) dyeing; 6) mosaic filling three-dimensional effect; 7 ) framed; among them,

1) Leather selection: select vegetable tanned leather with a thickness of 1-6mm, and cut the selected vegetable tanned leather with the design drawing in a ratio of 1:1;

2) Wetting: Spray the front of the cut vegetable tanned leather evenly with clean water, so that the moisture content of the vegetable tanned leather is 55-70%;

3) Draw the tread pattern: draw the contour line tread pattern of the design drawing on the front of the sprayed vegetable tanned leather;

4) Knocking contour bas-relief: According to the requirements of the picture, find out the position that needs to be expressed in layered texture, chisel the texture along the outline of the main picture to perform bas-relief knocking, and use the plasticity of vegetable tanned leather to form grooves on the vegetable tanned leather, so that The picture of vegetable tanned leather is uneven and orderly, with distinct layers;

5) Dyeing:

1. Draft: use water-based color or alcohol color, use a brush to render layer by layer on the vegetable tanned leather, and draw a light and dark contrast on the front of the vegetable tanned leather;

2. Rendering and coloring: Use pigments that match the color of the screen for rendering and coloring;

6) Inlaid and filled three-dimensional effect: find out the parts that need to be inlaid on the leather carving screen made of vegetable tanned leather, use a drill to break the leather surface, and drill holes that match the size and shape of the decorations, and place jewelry, metal or Other decorative materials are inlaid and pasted in the corresponding drill holes, or decorations are superimposed and pasted on the front of the painting where required, and bead string decorations are sewn at the pattern decoration position according to the composition requirements to increase the sense of hierarchy and make it perfectly integrated into the picture; On the finished leather carving screen of vegetable tanned leather, find out the three-dimensional layer parts that need to be made, and find the right position to paste the filler from the back of the vegetable tanned leather to make it achieve the expected three-dimensional effect;

7) Mounting: use a selected flat wooden board as the backboard, the thickness of the backboard is between 0.5-2.0 cm, apply glue evenly on the back of the vegetable tanned leather and the wooden board, and paste the vegetable tanned leather on the selected backboard, Use the selected picture frame to mount, because the vegetable tanned leather has good toughness, and the filler in step 6) plays a certain role, making the picture three-dimensional; Various shapes of patterns are sewn with leather thread, fixed and straightened up and down with the shaft head of a wooden stick, which makes the picture more ups and downs, just like the feeling of being on the scene;

The specific method of step 3) depicting the tread pattern is: step the design drawing on the nylon paper, then spread the nylon paper on the front of the wet vegetable tanned leather, and then place the drawing drawing on the nylon paper The contour line steps on the front of the vegetable tanned leather; or the step 3) describes the specific method of stepping on the figure: the wet vegetable tanned leather is placed between the concave-convex molds prefabricated with the outline of the design drawing, Apply pressure to create the outline of the design on the front of the vegetable tanned leather.

There is also a knife carving step between the step 3) depicting the tread pattern and the step 4) knocking the contour bas-relief. The specific operation method is: perform rotary knife carving along the graphic outline of the front of the vegetable tanned leather.

There is also a ironing step between the step 5) pressing the contour bas-relief and the step 6) dyeing. The specific operation method is: according to the composition requirements, use a soldering iron at a temperature of 110-200 ° C to iron the pattern. Painting, depicting small parts of pictures and texts, burning natural colors in contrasting places of light and shade. The three-dimensional effect of the excessive pattern strengthens the contrast between light and dark, irons out the lines of the natural color picture, expresses the smoothness of the content, the aesthetic effect of ironing color from deep to light, from thick to fine, and also shows the three-dimensional effect of ironing and dyeing texture.

The step 5) dyeing, after the rendering and coloring step, also includes the step of applying a brightener or emulsion. The specific operation method is: after rendering and coloring, evenly apply the brightener or emulsion on the front of the vegetable tanned leather at least once.

The step 5) dyeing, after the brightener or emulsion step, also includes an oiling dyeing step, the specific operation method is: after applying the brightener or emulsion for 4-5 hours, wait for the vegetable tanned leather to dry, and select the oil dyeing color Brush a layer of oil dyeing on the front of the vegetable tanned leather, according to the color depth of the picture, control the dipping time of the oil dyeing on the vegetable tanned leather for 0.1-10 minutes, then use cotton cloth to wipe off the oil dyeing on the surface of the vegetable tanned leather, and according to the color depth Adjust the wiping strength so that the oil stain penetrates into the carved pattern.

After the step 7) mounting, a graphic adjustment step is also included, and the specific operation method is: adjust the whole picture to make deeper refinement, fill and uniform adjustment.

In the pattern adjustment step, apply lotion or brightener to the position where the pattern needs to be brightened according to the composition requirement.

After the graphic adjustment step is completed, the polishing process is performed on the corresponding position of the pattern according to the composition requirements, and the polishing process is performed on the polished position.

The pigment in the step 5) dyeing is any one or any combination of acrylic pigment, mineral pigment, oily pigment, alcohol pigment for leather, water color pigment, cinnabar red, gold powder or silver powder. It can highlight the elegance and beauty of the color, and then apply emulsion and brightener on the leather or leather picture, and combine the effect of moistness and gloss with the good patterns of engraving and indentation, and realize the ingenious fusion of picture color and relief .

Advantages of the present invention: (1) the present invention wets the vegetable tanned leather before drawing, so that the water content of the vegetable tanned leather reaches 55-75%, and the subsequent steps do not need to be wetted again, and the whole process step can be completed, which is different from the existing Compared with technology, the technological process is simplified, and the 3D three-dimensional effect of the picture is improved. At the same time, it does not need to be wetted after dyeing, and does not need to be treated with formaldehyde color fixing agent, which is safe and environmentally friendly; Find out the part that needs to be inlaid on the painting, use a drill to break through the leather surface, drill out the shape of the decoration that matches the size, use reinforcing glue to inlay the decoration on the vegetable tanned leather or use a needle and thread to make it perfectly integrated into the picture. (3) The present invention fills elastic or solid fillers in the grooves on the back of the vegetable tanned leather to strengthen the three-dimensional effect of the whole picture, the lines of the picture are clear, and the whole picture is not easily deformed; The pattern lines on the front of the tanned leather are smooth, and the 3D effect is uneven and orderly; (5) The branding process is adopted, the three-dimensional effect of the pattern is excessive, the contrast between light and dark is strengthened, and the lines and colors of the natural color are ironed to express the smoothness of the content. The aesthetic effect from deep to light, from thick to fine, also shows the three-dimensional effect of hot carving texture; (6) The process of the present invention uses rich pigments, which can highlight the elegance and beauty of colors, and then use emulsion to smear the picture of leather or leather On the other hand, the effect of moistness and gloss is integrated with good patterns of engraving and indentation, and the ingenious fusion of picture color and relief is realized; (7) the present invention highly integrates the processing technology of leather painting, so that the brightness of the whole picture is good , Smooth lines, prominent light and dark contrast, rich color materials, realize the high integration of picture color and relief inlay technology, and achieve an unprecedented display effect of leather painting picture.

detailed description:

Embodiment 1: the manufacturing process of leather carving painting "Thangka", which comprises the following process steps: 1) skin selection; 2) wetting; 3) depicting the stepping figure; 4) knife carving; 6) ironing; 7) dyeing; 8) mosaic filling three-dimensional effect; 9) mounting; 10) graphic adjustment; among them,

1) Leather selection: select vegetable tanned leather with a thickness of 3mm, and cut the selected vegetable tanned leather with the design drawing in a ratio of 1:1;

2) Wetting: Spray the front of the cut vegetable tanned leather evenly with clean water, so that the moisture content of the vegetable tanned leather is 60%;

3) Draw the drawing: step the design drawing on the nylon paper, then spread the nylon paper on the front of the wet vegetable tanned leather, and then step on the outline of the design drawing on the nylon paper on the front of the vegetable tanned leather;

4) Knife engraving: Carry out rotary knife engraving along the graphic outline of the front of the vegetable tanned leather;

5) Knocking contour bas-relief: According to the requirements of the picture, find out the position where the layered texture needs to be expressed, and perform bas-relief knocking along the outline of the main picture by chiseling and embossing the texture, using the plasticity of vegetable tanned leather to form grooves on the vegetable tanned leather, so that The picture of vegetable tanned leather is uneven and orderly;

6) Ironing: According to the composition requirements, use a soldering iron with a temperature of 110-200 ℃ to draw lines on the pattern, depict the small parts of the graphic, and burn the transitional color at the contrast between light and dark, and iron out the natural color; the excessive pattern Three-dimensional sense, strengthen the contrast between light and dark, burn out the picture lines of natural color, express the smoothness of the content, the beautiful effect of ironing color from deep to light, from thick to fine, and also show the three-dimensional effect of hot carving texture;

7) Dyeing:

1. Draft: use water-based colors, use a brush to render on the upper layer of vegetable tanned leather, and draw a light and dark contrast on the front of the vegetable tanned leather;

2. Rendering and coloring: using acrylic paints and mineral pigments for rendering and coloring;

3. Polishing agent: After rendering and coloring, apply a brightening agent evenly on the front of the vegetable tanned leather;

4. Oiling and dyeing: After applying the emulsion for 4 hours, wait for the vegetable tanned leather to dry. Select the oil dyeing color and brush a layer of oil dyeing on the front of the vegetable tanned leather. According to the color depth of the picture, control the oil dyeing time on the vegetable tanned leather. 0.1-10 minutes, then wipe off the oil stain on the surface of the vegetable tanned leather with a dry cloth, and adjust the wiping strength according to the color depth, so that the oil stain penetrates into the carved pattern;

8) Inlaid and filled three-dimensional effect: Find out the parts that need to be inlaid on the leather carving screen made of vegetable tanned leather, use a drill to break through the leather surface, drill holes that match the size and shape of the decoration, and paste the jewelry inlaid on the Inside the corresponding drilled holes; find out the three-dimensional layer parts that need to be made on the leather carving screen made of vegetable tanned leather, and paste the filler from the back of the vegetable tanned leather to make it achieve the expected three-dimensional effect;

9) Mounting: use the selected flat wooden board as the back board, apply glue evenly on the back of the vegetable tanned leather and the board, paste the vegetable tanned leather on the selected back board, and use the selected picture frame to mount. The leather has good kneading toughness, and at the same time, the filling in step 8 plays a certain role, which enhances the three-dimensional effect of the picture;

10) Graphics adjustment: adjust the whole picture to make a deeper and more refined filling, making the overall leather carving picture more perfect.

Embodiment 2: The manufacturing process of the leather carving scroll painting "The Best Blessing in the World", which includes the following process steps: 1) skin selection; 2) wetting; 3) depicting the tread pattern; 4) knife engraving; 5) knocking the outline Bas-relief; 6) Dyeing; 7) Filling three-dimensional effect; 8) Mosaic filling three-dimensional effect; 9) Graphic adjustment; Among them,

1) Leather selection: select vegetable tanned leather with a thickness of 1 mm, and cut the selected vegetable tanned leather with the design drawing in a ratio of 1:1;

2) Wetting: Spray the front of the cut vegetable tanned leather evenly with clean water, so that the moisture content of the vegetable tanned leather is 55%;

3) Depicting the tread pattern: step the design drawing on the nylon paper, then spread the nylon paper on the front of the wet vegetable tanned leather, and then step on the outline of the design drawing on the nylon paper on the front of the vegetable tanned leather;

4) Knife engraving: Carry out rotary knife engraving along the graphic outline of the front of the vegetable tanned leather;

5) Knocking contour bas-relief: According to the requirements of the picture, find out the position where the layered texture needs to be expressed, and perform bas-relief knocking along the outline of the main picture by chiseling and embossing the texture, using the plasticity of vegetable tanned leather to form grooves on the vegetable tanned leather, so that The picture of vegetable tanned leather is uneven and orderly;

6) Dyeing:

1. Draft: use water-based colors, use a brush to render on the upper layer of vegetable tanned leather, and draw a light and dark contrast on the front of the vegetable tanned leather;

2. Rendering and coloring: using acrylic paint, cinnabar, and water color paint for rendering and coloring;

3. Apply lotion: After rendering and coloring, apply lotion twice evenly on the front of the vegetable tanned leather;

4. Oiling and dyeing: After applying the emulsion for 5 hours, wait for the vegetable tanned leather to dry. Select the oil dyeing color and brush a layer of oil on the front of the vegetable tanned leather. According to the color depth of the picture, control the oil dyeing time on the vegetable tanned leather. 0.1-10 minutes, then wipe off the oil stain on the surface of the vegetable tanned leather with a dry cloth, and adjust the wiping strength according to the color depth, so that the oil stain penetrates into the carved pattern;

7) Inlaid and filled three-dimensional effect: find out the three-dimensional layered parts that need to be made on the leather carving screen made of vegetable tanned leather, and paste the filler from the back of the vegetable tanned leather to make it achieve the expected three-dimensional effect; according to the composition It is necessary to sew bead string decorations at the pattern decoration position;

8) Mounting: Mounting with a scroll, with leather as the edge material, hand-stitched with leather thread to make various shapes of patterns, fixed up and down with the head of a wooden stick and straightened, making the picture more ups and downs, just like the feeling of being on the scene ;

Embodiment 3: the manufacturing process of leather carving painting "Prairie Love", which comprises the following process steps: 1) skin selection; 2) wetting; 3) depicting the stepping figure; 4) knocking the contour bas-relief; 5) dyeing; 6 ) filling three-dimensional effect; 7) mounting; 8) graphic adjustment; wherein,

1) Leather selection: select vegetable tanned leather with a thickness of 6mm, and cut the selected vegetable tanned leather with the design drawing in a ratio of 1:1;

2) Wetting: Spray the front of the cut vegetable tanned leather evenly with clean water, so that the water content of the vegetable tanned leather is 70%;

3) Depict the tread pattern: place the wet vegetable tanned leather between the concave-convex molds prefabricated with the outline of the design artwork, and form the outline of the design artwork on the front of the vegetable tanned leather by applying pressure to the mold ;

4) Knocking contour bas-relief: According to the requirements of the picture, find out the position that needs to be expressed in layered texture, chisel the texture along the outline of the main picture to perform bas-relief knocking, and use the plasticity of vegetable tanned leather to form grooves on the vegetable tanned leather, so that The picture of vegetable tanned leather is uneven and orderly;

5) Dyeing:

1. Draft: use alcohol color, use a brush to render layer by layer on the vegetable tanned leather, and draw a light and dark contrast on the front of the vegetable tanned leather;

2. Rendering and coloring: using acrylic paint for rendering and coloring;

6) Filling for three-dimensional effect: find out the three-dimensional layered parts that need to be made on the leather carving screen made of vegetable tanned leather, and paste the filling from the back of the vegetable tanned leather to make it achieve the expected three-dimensional effect;

7) Mounting: Use the selected flat wooden board as the back board, apply glue evenly on the back of the vegetable tanned leather and the wooden board, paste the vegetable tanned leather on the selected back board, and use the selected picture frame to mount. The leather has good toughness, and the filler in step 8) plays a certain role, making the three-dimensional effect of the picture stronger;

8) Graphics adjustment: adjust the whole picture to make a deeper and more detailed filling, making the overall leather carving picture more perfect.

Claims (11)

1. The manufacturing process of the leather carving picture is characterized by comprising the following process steps: 1) selecting skin; 2) wetting; 3) depicting a tread pattern; 4) knocking the outline bas-relief of the roller; 5) dyeing; 6) embedding and filling a three-dimensional effect; 7) mounting; wherein,

1) selecting skins: selecting the vegetable tanning leather with the thickness of 1-6mm, and cutting the selected vegetable tanning leather and the design draft according to the proportion of 1: 1;

2) wetting: uniformly spraying clean water on the front side of the cut vegetable-tanned leather to wet the vegetable-tanned leather, so that the water content of the vegetable-tanned leather is 55-70%;

3) drawing a step map: drawing the outline tread of the design drawing on the front surface of the wet-sprayed vegetable tanning leather;

4) knocking the outline bas-relief of the wheel: according to the picture requirement, the position needing hierarchical texture expression is found, the bas-relief beating is carried out along the main figure outline carving and embossing pattern, and the groove is formed on the vegetable-tanned leather by utilizing the plasticity of the vegetable-tanned leather, so that the picture of the vegetable-tanned leather is concave-convex ordered and well-arranged;

5) dyeing:

1. printing a manuscript: rendering the vegetable-tanned leather layer by using a writing brush with an aqueous color or an alcohol color, and drawing a light-dark contrast on the front side of the vegetable-tanned leather;

2. rendering and coloring: adopting pigment which accords with the color of the picture to render and color;

6) embedding and filling three-dimensional effect: finding out the part to be embedded on the leather carving picture made of the vegetable-tanned leather, breaking the leather surface by using a drill, drilling a drill hole with the size and the shape matched with the ornament, and embedding and sticking jewelry, metal or other decorative materials in the corresponding drill hole; or the decorations are superposed and stuck on the required places on the front surface of the picture, and the bead string decorations are sewn at the pattern decoration positions according to the composition requirements, so that the layering sense is increased and the bead string decorations are perfectly blended into the picture; finding out a three-dimensional layered part to be made on a leather carving picture made of the vegetable-tanned leather, and pasting a filler at an accurate position from the back of the vegetable-tanned leather to achieve an expected three-dimensional effect;

7) mounting: selecting a flat wood board as a back board, uniformly brushing glue on the back of the vegetable-tanned leather and the wood board, sticking the vegetable-tanned leather on the selected back board, and mounting by using a selected picture frame; or mounting by using a scroll, matching leather as rim charge, manually sewing various modeling patterns by using a leather line, and vertically fixing and straightening by using a stick shaft head.

2. The process for manufacturing the leather carving picture as claimed in claim 1, wherein the step 3) of drawing the step is as follows: stepping the design draft on nylon paper, then spreading the nylon paper on the front surface of the wetted vegetable-tanned leather, and stepping the contour line of the design draft on the nylon paper on the front surface of the vegetable-tanned leather; or the step 3) is a specific method for depicting the step map, and the specific method comprises the following steps: and placing the wetted vegetable-tanned leather between concave-convex molds with the profiles of the design drawings carved on the concave-convex molds, and applying pressure to the molds to form the profiles of the design drawings on the front surfaces of the vegetable-tanned leather.

3. The process for manufacturing the leather carving picture as claimed in claim 1, wherein a step of engraving is further provided between the step 3) of drawing the step and the step 4) of knocking the outline bas-relief, and the specific operation method is as follows: and rotary knife engraving is carried out along the figure contour line of the front surface of the vegetable-tanned leather.

4. The process for manufacturing the leather carving picture as claimed in claim 1, wherein a ironing step is further performed between the step 5) of knocking the outline bas-relief and the step 6) of dyeing, and the specific operation method comprises the following steps: according to the composition requirement, a soldering iron with the temperature of 110-.

5. The process for making the leather carving picture as claimed in claim 1, wherein the step 5) of dyeing further comprises a step of polishing with a brightener or emulsion after the step of rendering and coloring, and the specific operation method comprises the following steps: and uniformly coating a brightening agent or emulsion on the front surface of the vegetable tanned leather at least once after rendering and coloring.

6. The process for making the leather carving picture as claimed in claim 5, wherein the step 5) of dyeing further comprises a step of oiling and dyeing after the step of glazing the brightening agent or the emulsion, and the specific operation method comprises the following steps: and (3) after 4-5h of coating a brightening agent or emulsion, drying the vegetable-tanned leather, selecting oil dyeing color, brushing a layer of oil on the front surface of the vegetable-tanned leather for dyeing, controlling the dip-dyeing time of the oil dyeing on the vegetable-tanned leather to be 0.1-10 min according to the color depth of the picture, then wiping off the oil dyeing on the surface of the vegetable-tanned leather by using cotton cloth, and adjusting the wiping force according to the color depth to ensure that the oil dyeing color permeates into the carved pattern lines.

7. The manufacturing process of the leather carving picture as claimed in claim 1, characterized in that after the mounting in the step 7), a figure adjusting step is further included, and the specific operation method is as follows: and the whole picture is adjusted to be deeper, refined, filled and uniformly adjusted.

8. The process for making a leather carving picture as claimed in claim 7, wherein in the step of adjusting the pattern, emulsion or polish is applied to the position of the pattern to be brightened according to the requirement of the pattern.

9. The process for manufacturing the leather carving picture as claimed in any one of claims 1 to 8, wherein after the step of adjusting the pattern is finished, the corresponding positions of the pattern are ground according to the requirements of the composition, and the ground positions are subjected to vintage treatment.

10. The process for making a leather carving picture as claimed in any one of claims 1 to 8, wherein the pigment in the dyeing in step 5) is any one of or any combination of acrylic pigment, mineral pigment, oil pigment, alcohol pigment color special for leather, water color pigment, vermilion, gold powder or silver powder.

11. The process for making a leather carving picture as claimed in claim 9, wherein the pigment in the dyeing in step 5) is any one or any combination of acrylic pigment, mineral pigment, oily pigment, leather-specific alcoholic pigment, water pigment, cinnabar red, gold powder or silver powder.