A process for making tie-dyed paper

Abstract

The application discloses a tie-dyeing Tibetan paper production process and relates to the papermaking technical field; in order to improve the solidification effect of dyes after tie-dyeing; including the following steps: preparing Tibetan paper for tie-dyeing, ensuring that the Tibetan paper surface is clean and wrinkle-free, and the Tibetan paper has certain toughness; folding the Tibetan paper according to the required shape, laying the Tibetan paper on the workbench surface during folding, and wearing gloves throughout the process; using a thin rope or a thread to bundle the folded Tibetan paper, adjusting the tightness of the bundling in the process, so that there are no marks on the Tibetan paper surface; putting the bundled Tibetan paper into a dye pool for dyeing, repeatedly immersing the bundled Tibetan paper into the dye pool for 2 times during the dyeing process, and the immersion time is 8-10 min each time. The Tibetan paper is tie-dyed by adopting the natural dye and the manual knotting mode, so that each tie-dyed Tibetan paper has unique characteristics.

Description

Technical Field

[0001] This invention relates to the field of papermaking technology, and in particular to a tie-dye Tibetan paper making process. Background Technology

[0002] In the existing technology, Tibetan paper is made from tree bark fibers and the root fibers of Daphne odora (Tibetan for "Rija") through lime and soil alkali treatment. Because the herb itself is toxic, Tibetan paper has the characteristics of being resistant to insects and rodents, not rotting, not changing color, being tough, not easy to tear, folding, and wear-resistant.

[0003] The use of Tibetan paper (a national intangible cultural heritage - Tibetan papermaking technique) tie-dyeing technique is extremely rare at present. Existing methods and traditional production techniques cannot achieve the expected quality of Tibetan paper tie-dyeing, and the dyeing is either insufficient or excessive, which affects the quality of Tibetan paper.

[0004] Based on this, the present invention proposes a tie-dye Tibetan paper production process. The production method of the present invention achieves uniform dyeing and stable quality of Tibetan paper, effectively solving the problem of product development and extension of the Tibetan paper tie-dye technique. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tie-dye Tibetan paper making process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tie-dyeing process for Tibetan paper includes the following steps:

[0008] S1: Prepare the Tibetan paper to be tie-dyed, ensuring that the surface of the paper is clean, free of dirt and wrinkles, and that the paper has a certain degree of toughness;

[0009] S2: Fold the Tibetan paper into the desired shape, laying it flat on the workbench while folding, and wear gloves throughout the process;

[0010] S3: Use thin rope or thread to tie the folded Tibetan paper. Adjust the tightness of the tying during the process so that there are no marks on the surface of the Tibetan paper.

[0011] S4: Place the bundled Tibetan paper into the dye bath for dyeing. During the dyeing process, repeatedly immerse the bundled Tibetan paper in the dye bath twice, each time for 8-10 minutes.

[0012] S5: After the dyed Tibetan paper is taken out, it is spread evenly on the drying rack for drying.

[0013] S6: After drying, untie the binding rope or thread, unfold the dyed Tibetan paper, and you will get the semi-finished tie-dyed Tibetan paper.

[0014] S7: The semi-finished products are processed into fine products, and the finished tie-dyed Tibetan paper is then inspected for quality.

[0015] S8: Pack the finished tie-dyed Tibetan paper that has passed quality inspection into a warehouse for storage, with a storage temperature range of 10-15℃.

[0016] Preferably, in step S1, when selecting Tibetan paper for tie-dyeing, plant fiber paper is used, specifically wolfsbane. During the selection process, the color of the Tibetan paper surface is ensured to be uniform, without obvious dark spots or black dots. The Tibetan paper size is 50X70cm and the thickness is 0.5mm.

[0017] Furthermore, the tying of the hidden paper in step S3 specifically includes the following sub-steps:

[0018] S31: Adjust the knotting method and knotting density according to different patterns and styles;

[0019] S32: During the tying process, stack the Tibetan paper and tie it in a cross shape. The thickness of the Tibetan paper tied in one go should be kept at 8-10cm. The tying thread is a thin cotton thread with a length of 100cm.

[0020] Furthermore: In step S4, when dyeing the bound Tibetan paper, the dye used is a natural plant dye, and the specific raw materials include the following parts by weight: 5-10 parts saffron, 6-12 parts smoke tree, 3-8 parts horse chestnut, and 7-14 parts Sichuan safflower.

[0021] As a preferred embodiment of the present invention: a method for preparing dye for dyeing includes the following steps:

[0022] S41: Add water and dye raw materials into the mixer at a ratio of 1:5 and mix for 5-10 minutes at a speed of 500-600 r / min.

[0023] S42: Heat the mixed dye raw materials at a temperature of 75-80℃ for 10-20 minutes.

[0024] S43: Filter the heated mixed liquid to obtain filtrate and filter residue;

[0025] S44: After adding a certain amount of alkaline solution to the obtained filtrate, the filtrate is then introduced into a centrifuge for centrifugation. After centrifugation, the filtrate separates into layers, and the colored layer is used as a dye liquid for dyeing.

[0026] S45: Dye granules are obtained by evaporating and concentrating the dye liquid;

[0027] S46: Pack the dye particles into a warehouse.

[0028] As a further aspect of the present invention: the ratio of alkaline solution to filtrate in step S44 is 1:200.

[0029] As a further aspect of the present invention: the finishing process of the semi-finished product in step S7 specifically includes the following steps:

[0030] S71: After the tie-dyed Tibetan paper semi-finished product is dried, it is flattened. When flattening, the tie-dyed Tibetan paper semi-finished product is moved into the gap between the two flattening rollers. The roller distance between the two flattening rollers is adjusted to 3-5mm. The tie-dyed Tibetan paper semi-finished product is flattened repeatedly 3-5 times.

[0031] S72: The flattened Tibetan paper is cured and varnished using UV technology.

[0032] Based on the aforementioned scheme: the mixing ratio between water and dye particles is 10L of water to 5g of dye particles.

[0033] Based on the aforementioned scheme: during the dyeing process, the dyeing temperature is maintained at 25-30℃.

[0034] The beneficial effects of this invention are as follows:

[0035] 1. A tie-dye Tibetan paper making process, which uses natural dyes and hand-tying to tie-dye Tibetan paper, so that each piece of tie-dye Tibetan paper has unique characteristics.

[0036] 2. A tie-dye Tibetan paper making process, which involves meticulous control over each step of the process, including material selection, folding, knotting, dyeing, and drying, to ensure the quality of the tie-dyed Tibetan paper after the process, thus giving it high artistic value.

[0037] 3. A tie-dye Tibetan paper making process, which involves drying the tie-dye Tibetan paper by natural sun-drying, thereby ensuring the stability of the dye after curing.

[0038] 4. A tie-dyeing technique for Tibetan paper making, resulting in Tibetan paper with rich regional characteristics and cultural connotations. The production of tie-dyed Tibetan paper requires exquisite skills, and the selection of dyes and tying methods is very particular, giving it high artistic value. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the process for making tie-dyed Tibetan paper proposed in this invention. Detailed Implementation

[0040] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0041] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0042] Example 1:

[0043] A tie-dyeing technique for making Tibetan paper, such as Figure 1 As shown, it includes the following steps:

[0044] S1: Prepare the Tibetan paper to be tie-dyed, ensuring that the surface of the paper is clean, free of dirt and wrinkles, and that the paper has a certain degree of toughness;

[0045] S2: Fold the Tibetan paper into the desired shape, laying it flat on the workbench while folding, and wear gloves throughout the process;

[0046] S3: Use thin rope or thread to tie the folded Tibetan paper. Adjust the tightness of the tying during the process so that there are no marks on the surface of the Tibetan paper.

[0047] S4: Place the bundled Tibetan paper into the dye bath for dyeing. During the dyeing process, repeatedly immerse the bundled Tibetan paper in the dye bath twice, each time for 8-10 minutes.

[0048] S5: After the dyed Tibetan paper is taken out, it is spread evenly on the drying rack for drying.

[0049] S6: After drying, untie the binding rope or thread, unfold the dyed Tibetan paper, and you will get the semi-finished tie-dyed Tibetan paper.

[0050] S7: The semi-finished products are processed into fine products, and the finished tie-dyed Tibetan paper is then inspected for quality.

[0051] S8: Pack the finished tie-dyed Tibetan paper that has passed quality inspection into a warehouse for storage, with a storage temperature range of 10-15℃.

[0052] In this embodiment, tie-dyeing Tibetan paper is carried out using natural dyes and hand-tying techniques, giving each piece of tie-dyed Tibetan paper a unique characteristic. By meticulously controlling each process of material selection, folding, tying, dyeing, and drying, the quality of the tie-dyed Tibetan paper after tie-dyeing can be ensured, giving it high artistic value. The tie-dyed Tibetan paper is dried naturally, which ensures the stability of the dye after curing.

[0053] Example 2:

[0054] A tie-dyeing technique for making Tibetan paper, such as Figure 1 As shown, it includes the following steps:

[0055] S1: Prepare the Tibetan paper to be tie-dyed, ensuring that the surface of the paper is clean, free of dirt and wrinkles, and that the paper has a certain degree of toughness;

[0056] S2: Fold the Tibetan paper into the desired shape, laying it flat on the workbench while folding, and wear gloves throughout the process;

[0057] S3: Use thin rope or thread to tie the folded Tibetan paper. Adjust the tightness of the tying during the process so that there are no marks on the surface of the Tibetan paper.

[0058] S4: Place the bundled Tibetan paper into the dye bath for dyeing. During the dyeing process, repeatedly immerse the bundled Tibetan paper in the dye bath twice, each time for 10-12 minutes.

[0059] S5: After the dyed Tibetan paper is taken out, it is spread evenly on the drying rack for drying.

[0060] S6: After drying, untie the binding rope or thread, unfold the dyed Tibetan paper, and you will get the semi-finished tie-dyed Tibetan paper.

[0061] S7: The semi-finished products are processed into fine products, and the finished tie-dyed Tibetan paper is then inspected for quality.

[0062] S8: Pack the finished tie-dyed Tibetan paper that has passed quality inspection into the warehouse for storage, with a storage temperature range of 10-15℃.

[0063] In step S1, when selecting Tibetan paper for tie-dyeing, plant fiber paper is used, specifically wolfsbane. During the selection process, the color of the Tibetan paper surface is ensured to be uniform, without obvious dark spots or black dots. The Tibetan paper size is 50X70cm and the thickness is 0.5mm.

[0064] The step S3, which involves tying the hidden paper, specifically includes the following sub-steps:

[0065] S31: Adjust the knotting method and knotting density according to different patterns and styles;

[0066] S32: During the tying process, stack the Tibetan paper and tie it in a cross shape. The thickness of the Tibetan paper tied in one go should be kept at 8-10cm. The tying thread is a thin cotton thread with a length of 100cm.

[0067] Example 3:

[0068] A tie-dyeing technique for making Tibetan paper, such as Figure 1 As shown, it includes the following steps:

[0069] S1: Prepare the Tibetan paper to be tie-dyed, ensuring that the surface of the paper is clean, free of dirt and wrinkles, and that the paper has a certain degree of toughness;

[0070] S2: Fold the Tibetan paper into the desired shape, laying it flat on the workbench while folding, and wear gloves throughout the process;

[0071] S3: Use thin rope or thread to tie the folded Tibetan paper. Adjust the tightness of the tying during the process so that there are no marks on the surface of the Tibetan paper.

[0072] S4: Place the bundled Tibetan paper into the dye bath for dyeing. During the dyeing process, repeatedly immerse the bundled Tibetan paper in the dye bath 3 times, each time for 8-10 minutes.

[0073] S5: After the dyed Tibetan paper is taken out, it is spread evenly on the drying rack for drying.

[0074] S6: After drying, untie the binding rope or thread, unfold the dyed Tibetan paper, and you will get the semi-finished tie-dyed Tibetan paper.

[0075] S7: The semi-finished products are processed into fine products, and the finished tie-dyed Tibetan paper is then inspected for quality.

[0076] S8: Pack the finished tie-dyed Tibetan paper that has passed quality inspection into the warehouse for storage, with a storage temperature range of 10-15℃.

[0077] In step S4, when dyeing the bound Tibetan paper, the dye used is a natural plant dye. The specific raw materials include the following parts by weight: 5-10 parts saffron, 6-12 parts smoke tree, 3-8 parts horse chestnut, and 7-14 parts Sichuan safflower. The mixing ratio of water to dye particles is 10L water to 5g dye particles. The preparation method of the dye includes the following steps:

[0078] S41: Add water and dye raw materials into the mixer at a ratio of 1:5 and mix for 5-10 minutes at a speed of 500-600 r / min.

[0079] S42: Heat the mixed dye raw materials at a temperature of 75-80℃ for 10-20 minutes.

[0080] S43: Filter the heated mixed liquid to obtain filtrate and filter residue;

[0081] S44: After adding a certain amount of alkaline solution to the obtained filtrate, the filtrate is then introduced into a centrifuge for centrifugation. After centrifugation, the filtrate separates into layers, and the colored layer is used as a dye liquid for dyeing.

[0082] S45: Dye granules are obtained by evaporating and concentrating the dye liquid;

[0083] S46: Pack the dye particles into a warehouse.

[0084] The ratio of alkaline solution to filtrate in step S44 is 1:200.

[0085] During the dyeing process, the dyeing temperature is maintained at 25-30℃;

[0086] The finishing process of the semi-finished product in step S7 specifically includes the following steps:

[0087] S71: After the tie-dyed Tibetan paper semi-finished product is dried, it is flattened. When flattening, the tie-dyed Tibetan paper semi-finished product is moved into the gap between the two flattening rollers. The roller distance between the two flattening rollers is adjusted to 3-5mm. The tie-dyed Tibetan paper semi-finished product is flattened repeatedly 3-5 times.

[0088] S72: The flattened Tibetan paper is cured and varnished using UV technology.

[0089] Example 4:

[0090] A tie-dyeing process for Tibetan paper production is described. To test the curing ability of the dye in the tie-dyed Tibetan paper, a comparative example is introduced in this embodiment. The curing ability of the dye in the comparative example and the tie-dyed Tibetan paper of Examples 1-3 is compared and tested.

[0091] (1) The raw materials for the test were: Tibetan paper after tie-dyeing in Examples 1-3 and Tibetan paper after tie-dyeing purchased from the market;

[0092] (2) Test method: Four pieces of tie-dyed Tibetan paper were soaked in four containers of water for 24 hours. After soaking, the curing ability of the dye on the surface of the Tibetan paper was evaluated. The evaluation was divided into four levels: excellent, good, fair and average. The test results are shown in Table 1.

[0093]

[0094] Table 1

[0095] The experimental results show that, when the number of immersions in the dye bath is the same, increasing the immersion time per immersion can effectively improve the tie-dye curing effect of Tibetan paper. When the immersion time is the same each time, increasing the number of immersions in the dye bath can improve the tie-dye curing effect of Tibetan paper. Moreover, increasing the number of immersions is more effective in improving the curing effect of Tibetan paper than increasing the immersion time per immersion.

[0096] The above description represents a preferred embodiment of the present invention. The scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, combined with existing technology or common knowledge, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tie-dyeing Tibetan paper making process, characterized in that, Includes the following steps: S1: Prepare the Tibetan paper to be tie-dyed, ensuring that the surface of the paper is clean, free of dirt and wrinkles, and that the paper has a certain degree of toughness; S2: Fold the Tibetan paper into the desired shape, laying it flat on the workbench while folding, and wear gloves throughout the process; S3: Use thread to tie the folded paper, adjusting the tightness of the knot during the tying process to ensure that there are no marks on the surface of the paper. S4: Place the tied Tibetan paper into the dye bath for dyeing. During the dyeing process, repeatedly immerse the tied Tibetan paper into the dye bath 3 times, each time for 8-10 minutes. S5: After the dyed Tibetan paper is taken out, it is spread evenly on the drying rack for drying. S6: After drying, untie the knotted thread and unfold the dyed Tibetan paper to obtain the semi-finished tie-dyed Tibetan paper. S7: The semi-finished products are processed into fine products, and the finished tie-dyed Tibetan paper is then inspected for quality. S8: Pack the finished tie-dyed Tibetan paper that has passed quality inspection into the warehouse for storage, with a storage temperature range of 10-15℃. When dyeing the tied Tibetan paper in step S4, the dye used is a natural plant dye, and the specific raw materials include the following parts by weight: 5-10 parts saffron, 6-12 parts smoke tree, 3-8 parts horse chestnut, and 7-14 parts Sichuan safflower. A method for preparing dyes for dyeing includes the following steps: S41: Add water and dye raw materials into the mixer at a ratio of 1:5 and mix for 5-10 minutes at a speed of 500-600 r / min. S42: Heat the mixed dye raw materials at a temperature of 75-80℃ for 10-20 minutes. S43: Filter the heated mixed liquid to obtain filtrate and filter residue; S44: After adding a certain amount of alkaline solution to the obtained filtrate, the filtrate is then introduced into a centrifuge for centrifugation. After centrifugation, the filtrate separates into layers, and the colored layer is used as a dye liquid for dyeing. S45: Dye granules are obtained by evaporating and concentrating the dye liquid; S46: Pack the dye particles and put them into storage; The ratio of alkaline solution to filtrate in step S44 is 1:

200. The finishing process of the semi-finished product in step S7 specifically includes the following steps: S71: After the tie-dyed Tibetan paper semi-finished product is dried, it is flattened. When flattening, the tie-dyed Tibetan paper semi-finished product is moved into the gap between the two flattening rollers. The roller distance between the two flattening rollers is adjusted to 3-5mm. The tie-dyed Tibetan paper semi-finished product is flattened repeatedly 3-5 times. S72: The flattened Tibetan paper is cured and varnished using UV technology; The mixing ratio of water to dye particles in the dye is 10L of water to 5g of dye particles. During the dyeing process, the dyeing temperature is maintained at 25-30℃.

2. The tie-dye Tibetan paper making process according to claim 1, characterized in that, In step S1, when selecting Tibetan paper for tie-dyeing, plant fiber paper is used, specifically wolfsbane. During the selection process, the color of the Tibetan paper surface is ensured to be uniform, without obvious dark spots or black dots. The Tibetan paper size is 50X70cm and the thickness is 0.5mm.

3. The tie-dyeing Tibetan paper making process according to claim 2, characterized in that, The step S3, which involves tying the hidden paper, specifically includes the following sub-steps: S31: Adjust the knotting method and knotting density according to different patterns and styles; S32: During the tying process, stack the Tibetan paper and tie it in a cross shape. The thickness of the Tibetan paper for each tie should be kept at 8-10cm. The tying thread is a thin cotton thread with a length of 100cm.

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