CN113622208A

CN113622208A - Grass cloth finishing process and finished grass cloth

Info

Publication number: CN113622208A
Application number: CN202111045883.4A
Authority: CN
Inventors: 于红梅
Original assignee: Jiangxi Institute of Fashion Technology
Current assignee: Jiangxi Institute of Fashion Technology
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-11-09
Anticipated expiration: 2041-09-07
Also published as: CN113622208B

Abstract

The invention discloses a grass cloth finishing process, which comprises the steps of preparing composite traditional Chinese medicine serous fluid; carrying out alkali washing on grass cloth; immersing alkali-washed grass cloth into a mixed solution of the compound traditional Chinese medicine serous fluid and white vinegar for dip-dyeing; dehydrating and drying the dyed grass cloth and gluing; drying the rubberized grass cloth and then steaming; and repeating the dip dyeing, gluing and steaming for 1-3 times to obtain the finished grass cloth. The invention also discloses the grass cloth finished by the finishing process. The finishing process of the invention prevents mildew while inhibiting common pathogenic fungi and viruses by combined application of alkali washing, dip dyeing, gluing and steaming, reduces the disappearance of surface hairiness, eliminates the itching feeling under the condition that the cloth cover quality and the air permeability of the grass cloth are not influenced, and can improve the breaking elongation and the wrinkle resistance of the grass cloth to make the grass cloth more durable. The finishing process disclosed by the invention is low in cost, high in efficiency and environment-friendly, and the obtained grass cloth meets the selection of different consumers and the requirement of part of consumers on the multifunctional added value of one object.

Description

Grass cloth finishing process and finished grass cloth

Technical Field

The invention relates to the field of cloth processing, in particular to a grass cloth finishing process and a finished grass cloth.

Background

Grass cloth weaving techniques have a long history, which has long been listed in the national non-material cultural heritage list. The manual grass cloth (the rough cloth of the manual grass cloth, hereinafter referred to as the 'grass cloth') takes the semi-degummed ramie bast fiber which is naturally retted or dried as the raw material, the rough cloth is manually torn into filaments, the head and the tail of the filaments are twisted into ramie yarns (generally called the manual yarn, hereinafter referred to as the manual yarn), and the narrow fabric is manually woven by a wooden loom, so that the fabric is fresh and in vitro, has good moisture absorption and air permeability, contains purine and pyrimidine with certain bacteriostasis, and is suitable for making clothes in summer; the surface of the fabric has irregular texture effect and presents typical rough appearance of linen; the color of the woven grass cloth gray cloth is natural (off-white). The surface of the traditional grass cloth has irregular texture, and the typical characteristic is derived from manual yarns which are untwisted and are held together by self-colloid, and the yarn is formed by orderly manual splicing joints and uneven thickness of the yarn.

Because the traditional grass cloth has large rigidity, much filoplume, itching feeling and single color, and the improvement and promotion of the after-finishing process are not considered, the grass cloth is mainly used for artware, buildings and popular products at present. Under the influence of economic development and social transition, the traditional grass cloth finishing process is in a state of being in a standstill for nearly a hundred years, and the traditional manual grass cloth gray cloth finishing technology is gradually lost as old inheritors of old generations. The traditional process flow is that different processes correspond to different fabrics, and the finished fabrics are natural and environment-friendly, but have single functionality and are not comfortable enough, so that the requirements of the existing consumers on function diversification cannot be met.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is that the existing grass cloth is single in function and not comfortable enough, so that the grass cloth finishing process and the grass cloth after finishing are provided.

Therefore, the invention adopts the following technical scheme:

the invention provides a grass cloth finishing process, which comprises the following steps:

s1: preparing composite traditional Chinese medicine slurry;

s2: carrying out alkali washing on grass cloth;

s3: immersing alkali-washed grass cloth into a mixed solution of the compound traditional Chinese medicine serous fluid and white vinegar for dip-dyeing;

s4: dehydrating and drying the dyed grass cloth and gluing;

s5: drying the grass cloth after being glued, steaming and rinsing

S6: and circulating the steps from S3 to S5 for 1 to 3 times to obtain the grass cloth finished product.

Preferably, the composite traditional Chinese medicine serous fluid comprises a first component, a second component and a third component, and is prepared by the following raw materials in parts by weight,

the first part comprises the following raw materials:

50-100 parts of mulberry

50-100 parts of red-core pitaya;

the second component comprises the following raw materials:

the third component comprises the following raw materials:

further, in step S1, the preparation of the composite traditional Chinese medicine serous fluid is to mix the raw materials of the composite traditional Chinese medicine serous fluid, add water to submerge the raw materials for 8-12cm, keep boiling for 15-30 minutes after boiling, then cool down to 80-85 ℃ and decoct for 2-3 hours, continuously supplement water during decoction to keep initial water level, then cool and filter to obtain purple traditional Chinese medicine serous fluid.

In the step S2, the alkali washing step is to put the washed grass linen into alkali liquor and soak the grass linen for 20-40 minutes at 40-80 ℃, and the alkali liquor is kept to be submerged in the grass linen;

the alkali liquor is sodium carbonate solution, and the mass ratio of water to sodium carbonate is 20: 1.

In step S3, the dip-dyeing is carried out by soaking at 90-100 deg.C for 5-15min, and then at 70-80 deg.C for 25-40min, wherein the content of acetic acid in the mixed solution of compound Chinese medicinal serous fluid and white vinegar is 1.5-3 wt%.

In step S4, the coating step is to uniformly coat the bone glue solution on the grass cloth after dip dyeing, then spray the flaxseed glue solution on the surface of the bone glue solution, and finally beat the solution to immerse the glue solution into the grass cloth fibers.

Further, the bone glue solution is prepared by mixing bone glue and water according to the mass ratio of 3:1, and uniformly mixing at 70-85 ℃;

the flaxseed gum glue solution is prepared by mixing flaxseed gum and water in a mass ratio of 1: 100, and mixing at 20-25 deg.C.

In the step S5, the steaming is that the grass cloth after being glued is rolled into a roll and put into a steam device for steaming for 20 to 30 minutes, the grass cloth is taken out and then directly put into the mixed liquid of the compound traditional Chinese medicine serous fluid and the white vinegar with the temperature of 0 to 6 ℃ for soaking for 24 to 48 hours, and then the grass cloth is rinsed, rolled into a roll and beaten and dried;

the above steps are repeated until the color is not dropped off during rinsing.

The invention also provides grass cloth which is finished by the finishing process.

The technical scheme of the invention has the following advantages:

(1) in the finishing process provided by the invention, the grass cloth is subjected to alkali washing pretreatment before dip dyeing, so that pectin and lignin on the surface of the grass cloth are faded, during the dip dyeing, the traditional Chinese medicine substances are supplemented and penetrated into fiber gaps and cavities, but are unstable, and for the fastness and the strength of the medicine attached to the grass cloth, the grass cloth is glued, so that the substances in the traditional Chinese medicine liquid can be attached to the grass cloth more durably and form more infiltration and attachment at the same time, the attachment mainly exists in the gaps among the single yarns of the grass cloth loose untwisted yarn fiber bundles and in the fiber cavity, and finally steaming is carried out, the glue on the grass cloth is in a melting state and continuously permeates into grass cloth fibers, and meanwhile, the glue continuously absorbs moisture under the action of water vapor to form finer particles to be adsorbed in fiber gaps, and moderate moisture regain after the grass cloth is dried is facilitated. According to the grass cloth, through combined application of alkali washing, dip dyeing, gluing and steaming, the carrying amount of traditional Chinese medicine components can be increased, so that common pathogenic fungi and viruses are inhibited, mildew is prevented, meanwhile, after finishing, the cloth cover quality and air permeability of the grass cloth are not affected, surface hairiness disappears, the effect of itching feeling elimination is remarkable, the current situation that the grass cloth is high in rigidity and prone to wrinkling is avoided, the breaking elongation and the wrinkle resistance of the grass cloth can be improved, and the grass cloth is more durable.

(2) The raw materials of the composite traditional Chinese medicine serous fluid comprise 3 components, wherein the first component is a natural coloring agent component and is used for endowing grass cloth with natural color; the fungus-inhibiting traditional Chinese medicine component of the second component and the aroma-enhancing and mosquito-repelling traditional Chinese medicine component of the third component are matched with each other, so that the grass linen can inhibit common pathogenic fungi and viruses and prevent mildew, and meanwhile, the natural fragrance of the corresponding traditional Chinese medicines can prevent mosquitoes and delight mood.

(3) In the invention, the composite traditional Chinese medicine pulp is mixed with the white vinegar, so that the composite traditional Chinese medicine pulp can permeate into the fiber, and the flexibility of the fiber is improved; the combination of the bone glue and the flaxseed glue can achieve the effectiveness of the whole steaming process compared with the single flaxseed glue, avoid the idle consumption of resources at certain temperature and time nodes in the middle, and respectively melt at different proportions at normal temperature and when the temperature is raised to 100 ℃ in a constant state due to different melting points of the glue solution, thereby providing continuous and effective glue raw materials for the processes of infection, gluing and steaming. Meanwhile, the grass linen surface is not completely covered by 100% when the bone glue solution is brushed for the first time, and when the linseed glue is sprayed for the second time, the glue in the shape of water beads falls on the cloth surface and can preferentially slide to the area uncovered by the bone glue due to the action of gravity to cover and fuse, so that the grass linen is more uniformly covered by the glue solution.

(4) The finishing process can reduce the cost, improve the efficiency and is environment-friendly, and the finally obtained grass cloth meets the selection of different consumers and the requirement of partial consumers on the multifunctional added value of one object.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a flow chart of a grass cloth finishing process in examples 1-5 of the present invention;

FIG. 2 is a grass cloth finished in example 1 of the present invention;

FIG. 3 is an unfinished grass cloth of comparative example 1 according to the present invention;

FIG. 4 is the condition of the grass cloth after finishing in the embodiment 1 of the invention after being placed in the bacteria-containing environment for 7 days;

fig. 5 is a state of grass cloth in comparative example 1 of the present invention after being left in a germ-free environment for 7 days.

Detailed Description

The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.

The examples do not show the specific experimental steps or conditions, and can be performed according to the conventional experimental steps described in the literature in the field.

The grass cloth is as follows: pure handmade grass cloth woven by a wooden loom is woven between two towns. The grass cloth is semi-degummed manual ramie yarn. The alkaline solution is 20:1 sodium carbonate solution, the white vinegar is 3.50g/100ml edible white vinegar, and the rest materials are commercially available materials.

The following specific examples are further illustrative of the present invention, and the examples do not exemplify all the embodiments of the present invention, but only some of the embodiments are exemplified, and the specific examples are as follows:

example 1

The embodiment provides a grass cloth finishing process, and the process is shown in fig. 1 and comprises the following steps:

(1) soaking grass linen in alkaline solution at constant temperature of 50 ℃ for 20 minutes, and keeping the alkaline solution submerged in the grass linen; and then washing the residual alkali liquor on the grass cloth blank cloth with clear water, and drying for later use.

(2) Taking 750 g of mulberry, 750 g of red-heart pitaya, 600 g of honeysuckle, 300 g of fructus forsythiae, 350 g of dandelion, 500 g of houttuynia cordata, 250 g of radix bupleuri, 150 g of liquorice, 200 g of litsea cubeba, 500 g of marigold, 250 g of spearmint, 350 g of basil, 450 g of thyme, 300 g of fennel, 250 g of cinnamon and 400 g of lemon eucalyptus leaf, mixing, adding water to submerge the raw materials for 10cm, boiling for 20 minutes, cooling to 85 ℃, decocting for 2 hours, continuously supplementing water during decoction, keeping the initial water level, cooling and filtering to obtain purple composite traditional Chinese medicine serous fluid;

mixing bone glue and water at a mass ratio of 3:1, and uniformly mixing at 85 ℃ to obtain bone glue solution;

mixing flaxseed gum and water in a mass ratio of 1: 100, and uniformly mixing at 20 ℃ to obtain the flaxseed gum liquid.

(3) Immersing the alkali-washed grass cloth into the mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar in a mass ratio of 1:1, heating, boiling and dyeing for 40 minutes. The temperature was 95 ℃ for the first 10 minutes and 70 ℃ for the last 30 minutes.

(4) Dewatering and drying the dyed grass cloth, uniformly coating the mixed glue solution of linseed glue and bone glue on the dyed grass cloth, and then beating to enable the mixed glue solution to be immersed into grass cloth fibers; wherein the beating method comprises beating semi-dried grass cloth folded into square shape with a beating machine or manually beating to make the mixed glue solution immerged into grass cloth fiber, and fixing the traditional Chinese medicine slurry on grass cloth; in the beating process, a rubber hammer or a rubber rod is needed, the bearing surface to be beaten is also made of rubber soft materials, the beating force is moderate, overweight is not needed, and mechanical damage to fibers is avoided.

(5) Drying the grass cloth after being glued, rolling the grass cloth into a roll, steaming the grass cloth in a steam device for 30 minutes, taking the grass cloth out, directly putting the grass cloth into a mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar at 5 ℃ for soaking for 24 hours, rinsing, rolling the grass cloth into a roll, beating and drying the grass cloth; the above steps are repeated until the color is not dropped off during rinsing.

(6) And finally obtaining the finished grass cloth through repeated and cyclic steps of dip dyeing, gluing and steaming for three times, wherein the color of the grass cloth is as shown in figure 2 and is close to the color number of a Pantong color card ' brand new TPG color card ' 16-1712TPX '.

Example 2

The embodiment provides a grass cloth finishing process, which comprises the following steps:

(1) soaking grass linen in alkali liquor at constant temperature of 60 ℃ for 30 minutes, and keeping the alkali liquor submerged in the grass linen; and then washing the residual alkali liquor on the grass cloth blank cloth with clear water, and drying for later use.

(2) Taking 500 g of mulberry, 1000 g of red-heart pitaya, 400 g of honeysuckle, 200 g of fructus forsythiae, 300 g of dandelion, 600 g of houttuynia cordata, 200 g of radix bupleuri, 200 g of liquorice, 300 g of litsea cubeba, 400 g of marigold, 300 g of spearmint, 200 g of basil, 700 g of thyme, 200 g of fennel, 300 g of cinnamon and 700 g of lemon eucalyptus leaf, mixing, adding water to submerge the raw materials for 8cm, boiling for 15 minutes, cooling to 80 ℃, decocting for 3 hours, continuously supplementing water during decoction, keeping the initial water level, cooling and filtering to obtain purple composite traditional Chinese medicine serous fluid;

mixing bone glue and water at a mass ratio of 3:1, and uniformly mixing at 70 ℃ to obtain bone glue solution;

(3) Immersing the alkali-washed grass cloth into the mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar in a mass ratio of 1:1, heating, boiling and dyeing for 40 minutes. The temperature was 100 ℃ for the first 5 minutes and 80 ℃ for the last 35 minutes.

(5) Drying the grass cloth after being glued, rolling the grass cloth into a roll, putting the roll into a steam device for steaming for 20 minutes, taking the grass cloth out, directly putting the grass cloth into a mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar at 0 ℃ for soaking for 48 hours, rinsing, rolling the grass cloth into a roll, beating and drying the grass cloth; repeatedly operating the steps until the color does not fall off during rinsing, and obtaining the finished grass linen;

(6) and (5) repeatedly circulating the steps of dip dyeing, gluing and steaming for 2 times to finally obtain the finished grass cloth.

Example 3

(1) soaking grass linen in alkaline solution at constant temperature of 40 ℃ for 40 minutes, and keeping the alkaline solution submerged in the grass linen; and then washing the residual alkali liquor on the grass cloth blank cloth with clear water, and drying for later use.

(2) Mixing 1000 g of mulberry, 500 g of red-heart pitaya, 300 g of honeysuckle, 250 g of fructus forsythiae, 400 g of dandelion, 400 g of houttuynia cordata, 150 g of radix bupleuri, 300 g of liquorice, 100 g of litsea cubeba, 600 g of marigold, 200 g of spearmint, 500 g of basil, 300 g of thyme, 500 g of fennel, 200 g of cinnamon and 700 g of lemon eucalyptus leaves, adding water to submerge the raw materials by 12cm, boiling for 15 minutes, cooling to 85 ℃, decocting for 3 hours, continuously supplementing water during decoction, keeping the initial water level, cooling and filtering to obtain purple composite traditional Chinese medicine serous fluid;

mixing bone glue and water according to the mass ratio of 3:1, and uniformly mixing at 80 ℃ to obtain bone glue liquid;

mixing flaxseed gum and water in a mass ratio of 1: 100, and uniformly mixing at 25 ℃ to obtain the flaxseed gum liquid.

(3) Immersing the alkali-washed grass cloth into the mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar in a mass ratio of 1:1, heating, boiling and dyeing for 40 minutes. The temperature was 95 ℃ for the first 15 minutes and 70 ℃ for the last 30 minutes.

(5) Drying the grass cloth after being glued, rolling the grass cloth into a roll, steaming the grass cloth in a steam device for 30 minutes, taking the grass cloth out, directly putting the grass cloth into a mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar at 5 ℃ for soaking for 24 hours, rinsing, rolling the grass cloth into a roll, beating and drying the grass cloth; and repeating the steps until the color does not fall off during rinsing, and obtaining the finished grass cloth.

Example 4

(3) soaking the alkali-washed grass cloth in a mixed solution of the compound traditional Chinese medicine serous fluid and white vinegar in a mass ratio of 1:1 at 6 ℃ for 54 hours.

(4) Dewatering and drying the dyed grass cloth, and mixing linseed glue and water in a mass ratio of 1: 100, heating to 20 ℃ to obtain a glue solution, then uniformly coating the linseed glue solution on the dyed grass cloth, and then beating to ensure that the glue solution is immersed into grass cloth fibers; wherein the beating method comprises beating semi-dried grass cloth folded into square shape with a beating machine or manually beating to make the mixed glue solution immerged into grass cloth fiber, and fixing the traditional Chinese medicine slurry on grass cloth; in the beating process, a rubber hammer or a rubber rod is needed, the bearing surface to be beaten is also made of rubber soft materials, the beating force is moderate, overweight is not needed, and mechanical damage to fibers is avoided.

(5) Drying the grass cloth after being glued, rolling the grass cloth into a roll, steaming the grass cloth in a steam device for 30 minutes, taking the grass cloth out, directly putting the grass cloth into a mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar at 5 ℃ for soaking for 24 hours, rinsing, rolling the grass cloth into a roll, beating and drying the grass cloth; repeating the steps until the color does not fall off during rinsing;

(6) and finally obtaining the finished grass cloth through the steps of repeated circulation for three times of dip dyeing, gluing and steaming.

Example 5

This example differs from example 1 only in that only flaxseed gum is used in the gumming.

Comparative example 1

This comparative example is grass cloth without finishing process.

Comparative example 2

The only difference between this comparative example and example 1 is that no white vinegar was added during exhaust dyeing.

Comparative example 3

The only difference between this comparative example and example 1 is that there is no gumming step.

Test example 1

A piece of unscheduled grass cloth is taken as a base sample and is placed in a mould incubator, the temperature is kept at 25 ℃, the humidity is 85%, and the base sample grass cloth generates flora which is easy to breed. Then the grass cloths obtained in the examples 1-5 and the comparative examples 1-3 are placed in the above bacteria-containing environment for 7 days for observation, as shown in figure 4, the mold spots visible to naked eyes on the grass cloth finished in the example 1 can be ignored; as shown in fig. 5, the grass surface in comparative example 1 is one tenth area of the plaque point, as shown in table 1 below:

TABLE 1 grass surface condition of each example and comparative example

As can be seen from the above table, examples 1 to 3 of the present application were substantially free from mold spots, while examples 4 and 5 produced a trace amount of mold due to the absence of the use of bone glue. In the comparative example 2, no white vinegar was added, which limits the utilization rate of the composite traditional Chinese medicine slurry, and thus, trace mold spots were also generated. In comparative example 3, no glue was applied, and the impregnated composite traditional Chinese medicine slurry was not sufficiently retained, so that the anti-mold effect was greatly impaired, and a small amount of mold spots were present, which is significantly greater than in each of examples and comparative example 2.

Test example 2

The hairiness numbers and the defect numbers of the grass surfaces obtained in examples 1 to 5 and comparative examples 1 to 3 were observed, and the results thereof are shown in the following table 2:

TABLE 2 grass surface condition of each example and comparative example

As can be seen from the above table, in each example of the present application, the amount of hairiness is greatly reduced compared with the grass cloth without finishing in comparative example 1, and the hairiness in each example is also affected due to the difference between the number of times of finishing and the specific steps in finishing. In comparative example 2, since no white vinegar was added, softening of grass cloth was lost, and surface hairiness was not well treated. In comparative example 3, no glue is used, so that the softness of the glue to the hairiness is avoided, and the treatment condition of the surface hairiness is also influenced.

Test example 3

The grass cloths obtained from examples 1 to 5 and comparative examples 1 to 3 were tested for mechanical properties, the results of which are shown in table 3:

TABLE 3 grass surface condition of each example and comparative example

As can be seen from the above table, the mechanical properties of the grass cloth finished in each example of the application are not reduced compared with the grass cloth not finished in comparative example 1, which shows that the mechanical properties of the grass cloth are not affected while the finishing method of the application increases the composite functionality and improves the aesthetic effect of appearance, and the mechanical properties of example 1 are even obviously improved compared with comparative example 1.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A grass cloth finishing process is characterized by comprising the following steps:

s1: preparing composite traditional Chinese medicine slurry;

s2: carrying out alkali washing on grass cloth;

s4: dehydrating and drying the dyed grass cloth and gluing;

s5: drying the rubberized grass cloth, steaming, and rinsing;

2. The finishing process according to claim 1, wherein the composite traditional Chinese medicine serous fluid comprises a first component, a second component and a third component, and the components are calculated according to parts by weight,

the first part comprises the following raw materials:

50-100 parts of mulberry

50-100 parts of red-core pitaya;

the second component comprises the following raw materials:

the third component comprises the following raw materials:

3. the finishing process according to claim 1 or 2, wherein in the step S1, the compound traditional Chinese medicine serous fluid is prepared by mixing the raw materials of the compound traditional Chinese medicine serous fluid, adding water to submerge the raw materials for 8-12cm, boiling, keeping boiling for 15-30 minutes, then cooling to 80-85 ℃, decocting for 2-3 hours, continuously adding water during decocting to keep an initial water level, then cooling and filtering to obtain purple traditional Chinese medicine serous fluid.

4. The finishing process according to claim 3, wherein in step S2, the alkali washing is to put the cleaned grass cloth into alkali liquor, soak for 20-40 minutes at 40-80 ℃, and keep the alkali liquor over the grass cloth;

5. The finishing process of claim 4, wherein in step S3, the dip-dyeing is carried out by soaking at 90-100 deg.C for 5-15min, then at 70-80 deg.C for 25-40min, and the content of acetic acid in the mixed liquid of the compound traditional Chinese medicine serous fluid and white vinegar is 1.5-3 wt%.

6. The finishing process of claim 5, wherein in the step S4, the coating is to uniformly coat the bone glue solution on the dyed grass cloth, then spray the linseed glue solution on the surface of the bone glue solution, and finally beat the solution to immerse the glue solution into the grass cloth fibers.

7. The finishing process according to claim 6, wherein the bone glue solution is prepared by mixing bone glue and water in a mass ratio of 3:1, and uniformly mixing at 70-85 ℃;

8. The finishing process of claim 7, wherein in step S5, the steaming is performed by rolling the glued grass cloth into a roll, steaming the roll for 20 to 30 minutes in a steam device, taking out the roll, directly putting the roll into a mixed solution of the compound traditional Chinese medicine serous fluid and the white vinegar at 0 to 6 ℃ for soaking for 24 to 48 hours, rinsing, rolling into a roll, beating and drying;

the above steps are repeated until the color is not dropped off during rinsing.

9. Grass cloth, characterized in that it is finished by the finishing process of any of claims 1-8.