JPH0197287A - Jute processed product of japanese paper and interior raw material - Google Patents

Abstract

PURPOSE: To obtain a jute processed product making it possible to process jute in a large amount at a low cost and further enabling the utilization of the jute, which has been used only for packaging materials, for other uses, by hydrolyzing the jute with an enzyme to remove tannin ingredients, or the like, and further subjecting jute fibers to a stamping processing to produce a fiber processed article. CONSTITUTION: This jute processed product useful for interior materials such as wall surface materials or floor carpets is obtained by hydrolyzing jute or its processed fiber string or cloth with an enzyme at ordinary temperature or a higher temperature, washing the product with water, bleaching the washed product with a bleaching agent, washing the product with water, further subjecting the product to a bleaching treatment, a water-washing treatment, and a drying treatment to produce a raw material for Japanese paper, and subsequently immersing and dyeing the treated product in an aqueous solution containing an acidic or basic dye, a fluorescent dye, a colored pigment, an auxiliary, a UV light stabilizer, a fixing agent and/or a surfactant at 80 deg.C.

Description

Detailed Description of the Invention This invention was developed by enzymatically decomposing jute, which had previously only been used as raw material for packaging shells, removing lignin and tannin components, and bleaching it. , making washi paper as a substitute for trifurcated fibers at low cost and in large quantities, and then stamping jute fibers to produce twisted monofilament yarns, bleached and colored jute fibers in vertical and horizontal yarns, yarns, strings, and cross cloth. Spun processed products can be processed into wall cloth materials, carpets, floor coverings, interior products for furniture and miscellaneous goods, and can be used as substitutes or blends of known green ramie fibers as core materials or rough materials for clothing. The content concerns the development of new uses for jute made by bleaching and coloring, which is characterized by its low cost and ability to be processed in large quantities.

Generally known jute is also known as jute, and most of it is made by spinning monofilament-processed twisted yarn without bleaching and sewing it into packaging bags for shell materials, or for packing coffee beans, food, etc. It has been used for a long time as a packaging material for miscellaneous goods such as cotton flowers and medicines, but its range of use has been limited due to the unique coloring property of jute, and the shortcomings of ramie fiber, which is a raw material for clothing, due to its good short fibers and bristly properties. It was limited to raw materials for packaging, and was only partially used as lining for rugs, but in recent years, bag-making cloth made from plastic fibers, which is cheaper and more waterproof, has been made, and the packaging Many of the bags were replaced by this type of paper, and the use of jute gradually declined, necessitating the development of new uses for jute. In addition, Yuzou and trigeminal fibers were known as raw materials for washi paper, but there were various problems in mass productivity, and green ramie was used as a substitute, but these raw materials for washi paper were expensive. Moreover, it had the disadvantage that it was not suitable for mass production. In addition, traditional jute was bleached with calcium hypochlorite after enzymatic decomposition, but due to its strong oxidizing power, it had the disadvantage of damaging the fibers by processing and decomposing them during bleaching. However, practical bleaching was not easy. For this reason, in the countries of origin in Sri Lanka, China, Brazil, India, and Pakistan, cultivated jute is fermented without bleaching and its outer skin removed, then stamped, twisted, and spun into cloth cloth. Things were sewn and made into bags, which were then used as packaging bags, but in the process, they were colored and the yellowish-brown surface was always maintained, resulting in an unattractive appearance.
There were many problems in the development of multi-purpose use, and even if it was colored, it had the disadvantage that it could not produce a clear coloring effect. When used for interior decoration, most of them are limited to lining, and even when used as core material,
Because the waist is weak, thick cross plain woven fabric is used, which has a heavy feel and has many disadvantages when processed into light bottoms.

In addition, when bleaching jute, when using calcium hypochlorite, when bleaching the inherent colored fibers of purified jute,
Even if the brown pigment is decomposed and removed by primary bleaching, the yellow inner skin still exists, making it difficult to produce a pure white color. However, because of this, the fibers are often hydrolyzed, and it is necessary to improve this oxidizing bleach.

For this reason, the present invention has put into practical use the pure white fiber processing of jute, and has utilized it as a raw material for traditional Japanese paper such as yuzou and trident. In addition to being used as a substitute for cheap washi paper raw materials, this pure whitening process through bleaching allows it to be used as a core material for clothing and garments, as well as as raw material for interior design, with vivid colored printing. The purpose is to perform jute processing that can be processed by printing on a printer or used as a portable bag.

In particular, since jute production bases are located in humid, high-temperature areas with many rivers, processing methods that can be produced at low cost anywhere include peroxides such as sodium percarbonate, hydrogen peroxide, sodium persulfate, and sulfites. When immersed in cold water containing a combination of oxalate, organic acid, benzoyl peroxide, etc., and an aldenyhyde compound added, pure white jute is obtained with the remaining fibers intact, but with primary bleaching, The yellow viscous mesothelium remains in some parts, so after washing with water, secondary bleaching will remove it.
When this yellow film is completely separated and removed and washed with water, the production cost is extremely low because the bleaching can be carried out with just the equipment cost of a water tank, but pollution treatment requires reducing agent and neutralizing agent. Agents, flocculants, filters, etc. are required.

However, in small countries like Japan, land is expensive, so room temperature bleaching is carried out at high temperatures, but as is well known, the process takes several hours at 180°C. Since the bleaching process is completed within one hour at 100 to 120°C, the hydrolyzability of the fibers is not small. In addition, when dyeing with fluorescent dyes that are not dyed with acid dyes, jute fibers are thick and bristle, so it is not easy to dye the deep parts, and by Suizen, Many of them have the disadvantage of burning, and this is also the case with chlorinated and amphoteric dyes.To fix them, use a surfactant as a penetrant in an acidic or basic solution. Addition of UV stabilizer outside of the previous combination is necessary. This dyeing solution requires treatment of the fibers in warm water heated at a temperature of 30°C to 120°C.

In order to enzymatically decompose the jute, Erwinia and Carrotpola bacteria, which are soft rot fungi, are used to rapidly hydrolyze pectin. The fibers of this jute are
The fibers are isolated by separating the pectin, which is homogeneous with the three-pronged vector cellulose, but in this method, the hesicellulose that is eluted when using caustic alkali is left behind, and only the pectin substance is degraded. The yield is 50% from
It has the effect of retaining 60% of the fiber content, and when this bacterium and Aspergillus bacterium are used together, it increases the softness, so it can be bleached and washed with water and blended with green laminated fiber, silk or cotton yarn. When blended with synthetic fibers, monofilament yarns are produced that are inexpensive, dye well, control perspiration, and have enhanced water resistance, which has led to the development of many uses for cloth fabrics.

In addition, the bleached fiber obtained by enzymatically decomposing the jute and washing it with water can be used as a substitute raw material for jute and trigeminal fibers, and the production cost is reduced to about one-third to one-half, making it extremely economical. It has high strength and is 10 times more durable.

In addition, as a substitute for green laminated fiber, which is generally used for making banknotes and rice paper, it is used as a raw material for papermaking in large quantities at low cost, and because of its high strength, it can be used as a filter with good filtration properties when mixed with synthetic fibers or pulp fibers. Useful as an air filter and has a heat resistance of 10 to 30% that of pulp.
It also improves.

The manner of carrying out this invention will be explained with reference to the drawings as follows.

In the figure, jute (A) is washed with water and placed in a fermentation tank (2).
400g of jute was dissolved and dispersed in 35g of Erwinia Carrotpola bacteria in units of 100 million cells per liter of water at a temperature of 20 to 30°C, and left to stand for 30 hours. is dehydrated in a dehydrator (2'), and the dehydrated liquid is returned to the fermentation tank, and on the other hand, it is drained to a stagnant tank for stagnation. Next, the fermented jute is placed in a water tank (3) and washed with water to separate and remove pectin, lignin, and tannin.
A peroxidant is introduced into the bleach tank (4) (4a) (4b),
Depending on the formulation example of the oxidizing agent, jute (
When A) is added and soaked and the water temperature is brought to room temperature 25°C, soaking is carried out for 3 days.

If you wish to bleach quickly, bleach within 8 hours when the water temperature is 40-60°C. The pumps (7), (6), and (7') are operated to suck the finished bleaching solution from the water tanks (4), (4a), and (4b), and store it in the mobile circulation sensor (5) to dispose of the wastewater. , the water is stored in the water storage tank (8) and the fresh water pipe (
Fresh water from 4a) is poured into each water tank (4) (4a) (4b) for washing, and the waste water is circulated by pumps (7) (6) (7') to fill the water storage tank (8). Then, the upper tank (11) of this neutralization tank (9) puts the wastewater into the neutralization tank.
(11a) contains a neutralizing agent liquid, which is introduced into the neutralizing tank (9) to adjust the pH. This neutralized solution is transferred to the reduction tank (10)
The supernatant liquid is transferred to the clarification tank (14) using a pump, and the supernatant liquid is brought to the surface. While the water is drained while being filtered, the sludge at the bottom of the precipitate in the aeration tank (13) moves to the thickening tank (17), and the flocculant tank (1
Add the same solution from step 6) and filter it with a centrifuge using a pump (
18) The scum cake is fermented by adding bacteria in a fermentation tank (19) and used as organic fertilizer. The fermented wastewater and washing water from the water tank (1) are both introduced into the neutralization tank (9) by a pump and are sterilized. The bleached jute treated in the water tanks (4) (4a) (4b) is subjected to secondary bleaching and water washing, and then transported to the dryer (26) by a shovel car, where it is turned into bleached fibers (A').
is dried and cut into appropriate pieces using a cutter (26a) as raw material for washi paper, treated with a beater (27), and then processed into a paper machine (28).
) to produce the Japanese paper shown in Figure 4.

This Japanese paper is subjected to a salt bossing process to produce plastic film adhesive Japanese paper as shown in Figure 5, used as base paper for hot body warmer bags (Q), and processed into paper bands, fusuma paper, and filter paper as shown in Figure 6. Next, the bleached jute (A') is transferred to the dyeing tank (20) on the other hand.
Then add the dye solution (20a) and heat it for 80 minutes.
After processing at ℃ for about 20 minutes, take out the material, put it in a water tank (25), wash it with water to remove excess dye, and put it in a dehydrator (25).
The colored jute (A'') dehydrated in step 29) is guided to the dryer (30) and dried with hot air to produce colored jute (A''), which is twisted in a conventional manner to make a monofilament. Spin to make a plain weave cloth (T). This is shown in FIG. This is then sewn and used for wall and carpet materials. Known cloth cloths, monofilaments, and used donglos bags are bleached and dried in any of the water tanks (4), (4a), and (4b), and then printed in the dyeing tank (20a). This dye waste liquid passes through a water tank (25) and then passes through a water tank (21).
), the bleaching wastewater in the tank (8) is pumped (8).
') is introduced into the water tank (21), decolorized, and then transferred to the water tank (21).
Introduce the water stored in step 22) into the aeration tank (23),
The supernatant liquid is aerated and carried into the supernatant tank (24) using a pump, and the supernatant liquid is discharged. The scum liquid at the bottom of this aeration tank (23) is stored in a concentration tank (25), and then is stored in a filter separator (2
The scum cake is dehydrated in step 6), stored in a tank (27), and transported to a fermenter (19) for fermentation to produce fertilizer. The separated water is returned to the aeration tank (23) for aeration.

Figure 2 (a) is a front view of a bleached jute cloth (T) that has been processed to form the inside lining (n) of a clothing jacket (m). Figure 2 (b) is a front view of a necktie (l). The lining insert (J) is made of cloth cloth (T) and treated with resin or acetal to make it strong. (1) in the same figure shows a diagonal side view of the kimono belt (i), showing the inner lining (e). For fusuma paper with a pattern, colored printing may be performed on the surface and colored jute fibers may be mixed into the paper. The surface pattern of this cloth can also be colored and printed as desired, increasing the added value. An example of the bleaching formulation is as follows.

Example (1) Sodium percarbonate peroxygen 100g 5% chlorine dioxide solution 300g Jute fiber 1000g Water 1200g Example (2) Lime percarbonate 100g Hydrogen peroxide 2
0 g Bromine dioxide 3% solution 100 g Jute 1000 g Water 1500 g Example (3) Peracid 100 g Water 1200 g Jute 1000 g Aldehyde, oxal, oxime 10 g This formulation is a formulation example for bleaching fermented jute fibers. The processing temperature is room temperature to 48°C. After this bleaching, the product is washed with water and dried, but when coloring the product, the drying process can be labor-saving.

Next, an example of the formulation of the dyeing solution is as follows.

Example (4) Acid dye or basic dye 2g to 5g Surfactant 0.03g to 1g PH regulator 1g to 10g UV stabilizer 0.01g to 1g Auxiliary agent 0.1g to 1g Fixed penetrant 5g to 10g Water 500g to Add 300g of bleached jute fiber, string, or cloth to 1000g of this, heat it at 80°C for about 20 minutes, dehydrate it, put it in cold water, wash it, and dehydrate it to dry. The gloss treatment is based on the following formulation.

Example (5) Cellulose ether or the same ester or polyvinyl acetal, Sillac 10g Organic solvent 200g Emulsifier Plasticizer 10g Water 1500g Auxiliary stabilizer 5g Soaked in water, dehydrated and dried, washed with water and finished by drying. Fluorescent dyes are pure white against bleaching. Color enhancers and fluorescent colored dyes are used.

Bleaching with peroxides and oxidizing agents is also useful for green laminate fibers, which are raw materials for expensive linen clothing, and is also used for coloring.

This fermentation process has the effect of softening the hemp fibers and promoting decolorization.

The yield in this bleaching process is 86% to 8% in jute.
The tensile strength was 10% of the original fiber before bleaching.
In terms of durability, the decrease in tensile strength was less than 5% compared to the paper quality after 3 years.

As mentioned above, the feature of this invention is that it uses jute raw material that costs ¥50 per kg, so it is not as expensive as green ramie, which costs ¥800 to ¥1,200 per kg.
An inexpensive interior material is made, and when mixed with green ramie, inexpensive twisted yarn is made and coloring is easy.

It has the advantage of being made with acidic and basic amphoteric dyes, and has been used only for packaging bags and lining, but by bleaching the jute fiber cloth, we add value and create beautiful, clear dyed products. Because of this, it can be used as an outer core material for cloth rugs and synthetic leather bases in combination with plastics for wall materials related to high-end clothing and interior decoration, and can also be used as a substitute for the trident. Since it is extremely cheap, it can be produced in large quantities and productivity can be improved. In particular, when used as a raw material for banknote paper, it has a higher tensile strength than wood pulp and is easier to mix, similar to green ramie and kouzou trident. Blended twisted yarn has higher water resistance than human silk cotton, has good breathability in summer, and can be used as a core material because its bristles can be adjusted freely through fermentation, and it can be made hard by acetalization or etherification. It is effective and suitable for processing into disposable bags, especially as a packaging material for hot body warmers.Also, since cross bags made of plastic fibers have been made water resistant and strong, jute Since the demand for packaging bags has decreased by 30-50%, this is an industrially useful invention as a method for developing a new jute processing business. In particular, since it is a vegetable fiber, it has good coloring, and has high breathability despite perspiration, making it useful as summer clothing. In particular, colored fibers whose dyes change color even when exposed to ultraviolet rays or other light rays are used as cushioning materials.
In addition, many uses have been developed for light-shielding properties.

[Brief explanation of the drawing]

Figure 1 is a process diagram for bleaching and dyeing jute, Figure 2 (A) is a front view of the jacket, Figure (B) is a diagonal front view of the tie, and Figure (C) is the diagonal side of the bottom jacket. Figure 3 is a front view of colored and bleached jute cloth, Figure 4 is a front view of jute washi paper, Figure 5 is a front view of jute colored and bleached cloth.
The figure is a front view of a hot body warmer bag.

Claims (1)

[Scope of Claims] As described in the following text, jute or fiber strings or cloth fabrics made of pressed jute are hydrolyzed with enzymes at room temperature or high temperature, washed with water, and then bleached with a bleaching solution containing bleach. After washing with water,
The bleached jute is then bleached, washed with water, dried, and used as a raw material for washi paper.The bleached jute is then mixed with an aqueous solution containing acidic or basic dyes, fluorescent dyes, coloring pigments, auxiliary UV stabilizers, fixatives, and surfactants at a temperature of 80℃. The jute fibers and cloth cloth are heated and colored by dipping, washed with cold water, and dried to be used as interior materials, beaten fibers as raw materials for Japanese paper, or to be processed into blended textiles for clothing or unique jute fiber products. Bleached jute products and colored jute products that are used as floor materials, interior materials such as floor coverings and miscellaneous goods, neckties, broomstick core materials, and raw material for clothing.