JP2006336164A - Method for dyeing fabric by using seaweeds and leaves of chestnut tree - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dye fabric by extracting natural pigments that are friendly to human bodies from seaweeds and leaves of chestnut trees since adverse effect to human body are caused such as surface roughness, when the cloth dyed with chemically synthetic dye is used for underwear or the like. <P>SOLUTION: The seaweeds in nature, friendly to human body, particularly sargasso seaweed and leaves of chestnut tree are dried and crushed. Then, the crushed product is heated in soft water at 90 to 100°C for many hours and the pigment is extracted until the concentration of pigments attaining to a prescribed level. The concentrated pigment is used as a natural dye for dying fabric. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to the extraction of the pigments of seaweeds and chestnut leaves that exist in nature and dyeing them on fabrics.

In the case of dyeing cellulose fibers such as conventional cotton, a synthetic dye is used and an alkali is used together with a large amount of neutral salt or neutral salt. Some dyeings of animal protein fiber dyes such as wool may contain heavy metal chrome. In particular, in the case of cotton, if alkali remains in the dyed product, the skin of the human body will become rough, and in the case of dyed product obtained by some kind of reactive dyeing, unreacted synthetic dye will remain and hydrochloric acid by the dye will remain on the fiber Produced and will adversely affect the human body and textiles. Therefore, a method for dyeing with reactive dyes currently used will be described with reference to FIG. First of all, in scouring and bleaching, impurities such as protein, pectin, fatty acid and wax are contained in the cotton yarn, so these are removed and exposed to white.
In the process, soft water, cotton, scouring stabilizer, caustic soda, and hydrogen peroxide are placed in a scouring pot, and scouring bleaching is performed at 90 ° C for normal pressure formulation and 120 ° C for high temperature formulation over 30 minutes. Next, reactive dyes are often used for dyeing. Reactive dyes have a clear hue and are resistant to washing and sunlight, but are weak against chlorine. In the process, put soft water and scoured and bleached cotton in a dyeing pot, raise the temperature to 40 ° C, add the reactive dye, and after 10 minutes, add it every 5 minutes, 1/10, 4/10, 5/10. Then, raise the temperature to 60 ° C, and after 10 minutes, add the alkaline agent every 5 minutes, 1/10, 4/10, 5/10, and dye for 30 minutes for light colors and 50 minutes for dark colors. Then drain and wash. Washing is performed after dyeing in order to remove unreacted dyes and decomposing dyes to increase dye fastness. In the process, the water is once drained after washing with water, and after adding a set amount of soft water, a cleaning agent is added, the temperature is raised to 90 ° C., and washing is performed for 15 minutes. After that, drain and wash with water, but when this washing process is insufficient, alkali or the like remains on the fabric, causing rough skin. (For example, see Patent Documents 1 and 2)
JP-A-7-188574 JP-A-1-22970

  In the present invention, when a fabric dyed with a synthetic dye is used as an undergarment, a rough skin phenomenon occurs depending on the human constitution, which adversely affects the human body. Therefore, we extract the pigments of seaweed and chestnut leaves that are natural to the human body and dye them on the fabric.

  Natural algae that are kind to the human body, especially hondawalas and chestnut leaves, dried and then pulverized into soft water and heated at 90-100 ° C for a long time to extract the pigment to the specified concentration Dye the fabric with the dye.

  Dye extracted from seaweeds, especially Honda Walla, is rich in calcium, iron, and magnesium, so it is gentle on human skin and has the effect of preventing rough skin such as sweats and rashes. In addition, the medicinal effects of chestnut leaves are used to prevent rough skin such as lacquer rashes, rashes, and rashes. If the chestnut leaf-extracted dye is used as an underwear, there is an effect of preventing rough skin.

  Natural algae that are kind to the human body, especially hondawalas and chestnut leaves, dried and then pulverized into soft water and heated at 90-100 ° C for a long time to extract the pigment to the specified concentration Dye the fabric with the dye.

  The present invention will be described below with reference to examples. First, a method for producing a dye will be described. The raw material for the dye is the seaweed Honda Walla or chestnut leaves. After collection, remove dust and incombustible material adhering to the surface by washing with water, and then put it in a dryer at 100 ° C to dry it completely. . For the purpose of facilitating the extraction of the pigment, dried Honda Walla or chestnut leaves are pulverized to 2 mm or less with a pulverizer. Next, the pigment is extracted by adding 100 g of powdered powder and 1 L of soft water to a dyeing machine, heating at 95 ° C. for 60 minutes, extracting the pigment, filtering with gauze, etc., taking out the dye solution and using it as a dye .

  Next, a pretreatment method before dye will be described. Plant fibers such as dyed cotton are made of cellulose and are not dyed much better than animal fibers such as silk and wool. Dyeing is greatly improved by processing soy protein used in the pretreatment characteristic of this patent and attaching it to the fiber. In the soy protein pretreatment process, 1000 grams of water is added to 100 grams of soybeans and soaked for about half a day. Then mash the soybeans with water in a mixer. Remove from the mixer and filter with gauze to make soy milk. Next, when the material to be dyed is 10 g of cotton, 200 g of soy milk is put into the dyeing machine in the order of soy milk and cotton, and treated at 30 ° C. for 30 minutes to attach the soy protein to the cotton. Next, the cotton taken out from the dyeing machine is dried with a dehydrator for 30 seconds and at a dryer temperature of 30 ° C. for 120 minutes to complete the pretreatment process. See Fig. 2 for the pretreatment process. Moreover, it can replace with soybean milk and can attach to cotton fiber with a cationizing agent. If the material to be dyed is 10 g of cotton, add 2 g of cationizing agent (polycationic substance containing a quaternary ammonium salt), 4 g of alkali and 200 g of soft water to the dyeing machine in the order of cationizing agent, alkali, soft water and cotton. After heating at 80 ° C. for 30 minutes to attach the cationizing agent to cotton, the treatment solution is discharged from the dyeing machine. Next, in order to neutralize the object to be dyed, 0.2 g of acetic acid and 200 g of soft water are put into the dyeing machine, neutralized at 40 ° C. for 10 minutes, then washed with water, and the pretreatment process is completed.

A method for dyeing cotton after pretreatment will be described. For example, when dyeing to a neutral color of camel, add 50cc of dye and 150cc of soft water to 10g of cotton, stir well, add cotton and stir in the dye machine. Thereafter, the temperature is gradually raised and dyeing is performed at 80 ° C. for 30 minutes. After dyeing, the cotton is taken out from the dyeing machine, washed in the water tank about 3 times, dehydrated with a dehydrator, and dried at 100 ° C for 20 minutes with a dryer to provide a fabric dyed with natural dyes that are gentle to the human body. can do. In the case of animal protein fibers such as wool and silk, soy protein treatment is not required, and the fabric is gentle to the skin by being dyed with natural dyes by the same dyeing treatment as cotton. The concentration of dyeing can be freely adjusted by the amount of dye.

It is explanatory drawing which showed the reactive dye dyeing | staining process. It is explanatory drawing which showed the pre-processing process with soybean (protein).

Claims (3)

  Pretreatment before dyeing by drying the seaweed hondawala, pulverizing it into soft water, heating it at 90-100 ° C for a long time, and dyeing the dye extracted to the specified concentration on the fabric A method of processing soy protein and attaching it to fibers in the process.   A method in which dried seaweeds such as seaweeds are pulverized and put into soft water, heated at 90 to 100 ° C. for a long time, and dyed with a dye extracted to a predetermined concentration on a fabric. A method in which chestnut leaves are dried and pulverized, put into soft water, heated at 90 to 100 ° C. for a long time, and dyed to extract a dye having a predetermined concentration to fabric.

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