JP2008115483A - Method for dyeing fiber material, and dyed material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for dyeing fiber materials using a colcothar paint conventionally used for an architecture paint, and a dyed material by the method, since it is not a very favorable method to use a chemical dye in order to increase fastness amid calls for environmental protection these days. <P>SOLUTION: The various fiber materials to be dyed are pretreated at a temperature of 80-100°C for 30-60 minutes using an alkali solution having a bath ratio of 1:10-20, and thereafter dyed with a mineral pigment using an anchoring agent acting as a binder and a fix-finishing agent having a water repellency. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fiber material dyeing method and a dyed product for dyeing a fiber material such as cotton, hemp, rayon, silk, wool, and fiber yarn and a fiber product with a mineral pigment using a fixing agent.

  Many proposals have been made as dyeing methods for fiber materials. For example, as described in Patent Document 1, a variety of materials can be obtained by using a plus ionizing substance, a chemical dye, and a natural dye that are dyed by dyeing the dye to a dyed fiber material with a charge number of 3 or more. There is a way to make a color tone.

JP 2005-36335 A

The method disclosed in Patent Document 1 requires a step of positive ionization, and recently, while environmental protection is screamed, the combined use of chemical dyes and natural dyes used to increase fastness is This is not a preferable method.

An object of the present invention is to solve the above problems and to provide a method for dyeing a fiber material that is not inferior to various fastnesses using only a natural dye such as Bengala or a natural fixing agent, and a dyed product thereof.

In the method for dyeing a fiber material of the present invention, various fiber materials to be dyed are pretreated at a temperature of 80 to 100 ° C. for 30 to 60 minutes using an alkaline aqueous solution having a bath ratio of 1:10 to 20, and then the fiber material to be dyed. It is characterized by dyeing with a mineral pigment using a fixing agent that acts as a binder and a fixing finish that has a water repellent effect.

Further, the alkaline aqueous solution in the fiber material dyeing method of the present invention is an alkaline aqueous solution containing one or more selected from the group consisting of caustic soda, sodium carbonate and hydrogen peroxide.

  Further, the various dyed fiber materials are treated with the fixing agent in the dyeing method of the fiber material of the present invention before or after dyeing the dyed fiber material with a mineral pigment, or before or after or during dyeing. .

Furthermore, the fixing agent in the method for dyeing a fiber material of the present invention is characterized in that it is one or more compounds selected from casein, bean juice, rapeseed oil, pine oil, tannic acid, and lye juice.

Further, the treatment of the fiber material or product to be dyed by the fixing finish in the method for dyeing fiber material of the present invention is performed before or after dyeing the fiber material or product to be dyed with a mineral pigment, before or after or during dyeing. It is characterized by.

Further, the fixing finish in the fiber material dyeing method of the present invention is a compound comprising an organic silicon compound, a nonionic active agent, and water.

Furthermore, the mineral pigment in the dyeing method of the fiber material of the present invention is a mixture of bengara and titanium oxide finely pulverized to a particle size of 0.1 to 1.0 μm in the form of one or more powders. Features.

In the dyed product of the present invention, various dyed fiber materials are pretreated for 30 to 60 minutes at a temperature of 80 to 100 ° C. using an alkaline aqueous solution having a bath ratio of 1:10 to 20, and then the dyed fiber material is used as a binder. It is characterized in that it is made by a method of dyeing with a mineral pigment using a fixing agent that acts and a fixing finish that has a water repellent effect.

Further, the mineral dye used in the dyed product of the present invention is characterized by using only Bengala or only titanium oxide.

Further, the mineral dye used in the dyed product of the present invention is characterized by mixing and using a proper amount of Bengala and titanium oxide.

According to the fiber material dyeing method and dyed product of the present invention, it has become possible to use Bengala paint, which has been conventionally used as an architectural paint, for dyeing fiber materials. In addition, fastness comparable to that of dyed products by conventional plant dyeing or honey dyeing can be obtained without using chemical dyes or chemical resins.

  First, according to the method for dyeing a fiber material of the present invention, various dyed fiber materials are pretreated at a temperature of 80 to 100 ° C. for 30 to 60 minutes using an alkaline aqueous solution having a bath ratio of 1:10 to 20, and then the dyed material is dyed. The fiber material is dyed with a mineral pigment using a fixing agent that acts as a binder and a fixing finish that has a water repellency. Pretreatment with an alkaline aqueous solution in this way removes natural impurities such as wax and pectin and impurities and renders it hydrophilic.

As the mineral pigment, bengara or titanium oxide finely pulverized to a particle size of 0.1 to 1.0 μm is used, which is mixed in the form of one or two or more powders, but it is desirable to pulverize to 0.3 μm or less. .

Conventionally, a method using bean juice is generally used as the sticking agent. However, in the present invention, casein, rapeseed oil, and pine oil can be blended to make the fiber material to be dyed flexible.

For fixing finishes, it is generally possible to increase the fastness by a method using an acrylic resin, but in the present invention, organic materials such as organic silicon compounds and nonionic activators are used, focusing on natural materials. Thus, the texture of the dyed fiber material can be kept in a natural state.

Cotton fiber was selected as the dyed fiber material and dyed. First, cotton fibers were placed in an aqueous solution of a higher alcohol detergent (bath ratio 1:10) and pretreated at a temperature of 100 ° C. for 30 minutes.

  Then, only 1/10 of the weight of Bengala crushed to 0.1 to 0.3 μm of the weight ratio of cotton fibers or only titanium oxide or a mixture thereof (Examples 1 to 4 below). Casein was mixed in hot water at 100 ° C., cotton fibers were dipped in it, and it was thoroughly squeezed and squeezed and dried.

  Example 1 is a reddish brown 100% bengara dye, Example 2 is an ocher 100% bengara dye, Example 3 is a white 100% titanium oxide dye, and Example 4 is a black It is a mixture of 50% bengara and 50% titanium oxide in gray.

  The dyed product that had been dyed and dried was immersed in an aqueous solution containing an organic silicon compound for 20 to 30 minutes to fix the dye, then dried and washed with water.

In addition, for comparison, a plant dye (Hibiscus) with a pink color was set as Comparative Example 1, and a plant dye (Kumazasa) with a green color was set as Comparative Example 2. This plant dyeing is dyed with a combination with a chemical dye such as an acid dye. Furthermore, Hani dyeing (magnetite) with a gray color was set as Comparative Example 3, and Hani dyeing with a brown color was set as Comparative Example 4 (Lemonite). This Hani dyeing is a kind of mud dyeing using natural ore as a dye. For these comparative examples, the same pretreatment as in Examples 1 to 4 was performed.

The results of an investigation of light fastness, wash fastness, and sweat fastness of a sock-knitted sample obtained by spinning a card yarn blended with 10% cotton fiber dyed in this way and 90% undyed cotton raw material. Table 1 shows.

Regarding light fastness, according to JIS-L-0842 "Class 4 and 3",
The fastness to washing was tested in accordance with “A-2” of JIS-L-0844, and the fastness to sweat was tested in accordance with “acid, alkali” of JIS-L-0848.

As a result, the examples of the present invention were dyed products that were comparable to the comparative examples in light fastness, wash fastness and sweat fastness using only natural dyes and natural fixing agents.

Claims (10)

After various kinds of dyed fiber materials are pretreated using an alkaline aqueous solution having a bath ratio of 1:10 to 20 at a temperature of 80 to 100 ° C. for 30 to 60 minutes, a fixing agent and a water repellent which act as the binder of the dyed fiber material A method for dyeing fiber materials, characterized by dyeing with a mineral pigment using a fixing finish that acts. The method for dyeing a fiber material according to claim 1, wherein the alkaline aqueous solution is an alkaline aqueous solution containing one or more selected from the group consisting of caustic soda, sodium carbonate, and hydrogen peroxide. The fiber material according to claim 1 or 2, wherein the treatment of the various fiber materials to be dyed with the fixing agent is performed before or after dyeing the fiber material to be dyed with a mineral pigment, before or after or during dyeing. Dyeing method.   The fiber material according to any one of claims 1 to 3, wherein the sticking agent is one or more compounds selected from casein, bean juice, rapeseed oil, pine oil, tannic acid, and lye juice. Dyeing method.   5. The processing of the fiber material or product to be dyed by the fixing finish is performed before or after dyeing the fiber material or product to be dyed with a mineral pigment, or before or after or during dyeing. The dyeing | staining method of the fiber material of any one. 6. The method for dyeing a fiber material according to claim 1, wherein the fixing finish is a compound comprising an organic silicon compound, a nonionic activator, and water.   The mineral pigment is a mixture of bengara and titanium oxide finely pulverized to a particle size of 0.1 to 1.0 µm in a powder state. The method for dyeing a fiber material according to claim 1.   The various fiber materials to be dyed are pretreated for 30 to 60 minutes at a temperature of 80 to 100 ° C. using an alkaline aqueous solution having a bath ratio of 1:10 to 20, and then a fixing agent that acts as a binder and a repellent property. A dyed product characterized in that it is made by a method of dyeing with a mineral pigment using a fixing finish that has water action.   The dyed product according to claim 8, wherein the mineral dye uses only bengara or titanium oxide.   The dyed product according to claim 9, wherein the mineral dye is mixed with an appropriate amount of bengara and titanium oxide.