JPS59130388A - Dyeing of cellulose fiber and natural polyamide fiber blended product - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a method for dyeing a mixture of cellulose fibers and natural polyamide fibers, and its purpose is to prevent contamination of natural polyamide fibers by dyes for cellulose fibers when dyeing cellulose fibers. and obtain vividly dyed products.

In recent years, not only fashion but also functionality has become important for clothing, and performance requirements for sports clothing have become increasingly complex, and it is usually extremely difficult to satisfy complex performance requirements with a single material. Material development is progressing rapidly.

One such material is a mixture of wool and cellulose.

However, such a composite of materials with different properties poses a major problem in the dyeing process.

In other words, when a cellulose/wool mixed product is dyed with a cellulose dye, the cellulose dye strongly contaminates the wool side, and the dyeing on the cellulose carpet side is suppressed, making it difficult to dye both sides to the desired hue. This tendency is particularly noticeable when the wool is pre-shrunk. Therefore, dyeing of such composite materials has been dealt with by selecting dyes, but the effects are insufficient and no fundamental solution has yet been reached.

As a result of extensive research into a dyeing method that prevents contamination of wool, the inventor arrived at the method of the present invention.

That is, the present invention involves dyeing cellulose oIf &++' natural polyamide n1° articles with a dye having an affinity for cellulose fibers, using an aromatic compound having a sulfonic acid and/or sulfonic acid group before or during dyeing. It is characterized by processing.

The staining of natural polyamide fibers by the cellulose fiber dye according to the present invention is prevented, vivid dyeing is possible in the same color and different colors, color matching is easy, and the utilization rate of cellulose dye is improved. It has many features such as the ability to freely select dyes. Another great advantage is that natural polyamide fibers can be left white.

Furthermore, the halogenated aromatic compound used can also provide an insect repellent effect, which has great advantages in industrialization.

The cellulose fiber/natural polyamide open fiber mixture products to which the present invention is applied include cellulose-like fibers such as silk, hemp, regenerated cellulose, ammonium rayon, and natural polyamide fibers such as wool, albaca, camel, and mohair. It is a mixed product, and the form of the mixed product mH is not particularly limited, and includes mixed sliver, blended yarn, thread-like material with broken holes, fabric using the thread, cellulose fiber thread and natural polyamide fiber thread. In addition to cross-knitted gauze fabrics, pile fabrics, multilayer structure fabrics, etc., mixed non-woven fabrics are exemplified. In addition to the above-mentioned #@ fibers, other fibers such as polyamide fibers, polyester fibers, and modified yuzu fibers thereof may also be used.

Note that Cellulose 99 r+I may or may not be mercerized, and some of its water-resistant groups may be modified by etherification, esterification, or the like. Further, the natural polyamide fiber may be unprocessed or may be subjected to shrink-proof processing, but it is particularly effective to apply the shrink-proof process.

The shrink-proofing process may be performed on the natural polyamide fiber alone (1) or after it is mixed with cellulose fiber.

Preferably, the shrink-proofing treatment is an oxidation treatment using an active chlorine compound, and if desired, it is also preferable that the surface layer be subjected to a scale dissolution treatment or a polyamide resin treatment.

the above? Dyes used to dye JF products are dyes that have an affinity for fibers; for cellulose fibers, reactive dyes, direct dyes, etc. are usually used, while for natural polyamide fibers, acid dyes are usually used. , reactive dyes for wool, etc.

Natural polyamide fibers may be dyed or undyed.

The dyeing may be either dip dyeing or pad dyeing, or may be textile printing.

In the present invention, the above-mentioned mixed product is dyed with a dye having an affinity for cellulose fibers, and is treated with a sulfonic acid and/or a halogenated aromatic compound having a sulfonic acid group before or during dyeing. . Examples of the halogenated aromatic compound include a sulfonated product of bis(ri0cll17el)ether, a sulfonated product of a halogenated phenol or its derivative, an aldehyde condensate of a sulfonated product of a halogenated phenol or its derivative, and a compound of the general formula (however, Examples include compounds represented by M+water ψ atom, alkali metal, ammonium group). Particularly preferred compounds are those represented by the above formula. The amount of the halogenated aromatic compound used varies depending on the frequency, but is usually about 0.1 to 5% of the weight of the natural polyamide thin string, preferably 0.1 to 5% of the weight of the natural polyamide thin string. . It is about 2 to 3% owf. If the amount used is too small, the effect of preventing contamination of natural polyamide locks will be poor, and the insect repellent effect will also be poor.

Further, if too large a quantity is used, it is not only uneconomical but also has the disadvantage of inhibiting the dyeability of natural polyamide fines in some cases.

To explain the treatment method of the present invention in more detail, the natural polyamide fiber side is usually treated with an aqueous solution of the above-mentioned halogenated aromatic compound at any stage before or during dyeing of the cellulose braid. When dyeing the natural polyamide fiber side first, dyeing and treatment in the same bath are also possible, and this method is most preferable from the viewpoint of color matching. Preferably, the treatment is with a group compound. However, dyeing and co-bath treatment can also provide considerable improvement effects.

The treatment method may be a dyeing bath process, a pad method, or a dipping method, but the dipping method is preferable.

The treatment conditions for the dye bath method may be the same as those for the dyeing process, and the treatment is usually performed under humidified or heated conditions at about 50° C. or higher.

The present invention will be explained below with reference to Examples, but the present invention is not limited to the Examples.

Example A green material made of cotton/shrink-proof wool blend yarn (50/150 weight ratio) was washed with a 1% aqueous solution of a nonionic detergent to a density of 80 to 100.
After scouring for 15 minutes at °C and washing with water, a 20% emulsion of a compound represented by the general formula (M: hydrogen atom) 3% owf
It was immersed at 30°C in an aqueous solution containing 6% OWF (based on wool) and 3% OWF acetic acid, heated to 60°C, treated for 30 minutes, and washed with water.

Next, the line side was dyed for 60 minutes at 50°C with a dye bath of the following recipe A at a bath ratio of 1:5 to 100, and then the wool (■11) was dyed for 40 minutes by boiling in a dye bath of the following recipe B. After soaping in a 1% OWF aqueous solution at 50° C., washing with hot water and water, washing in a 2% OWF aqueous solution of Neofix BS (dye fixing agent manufactured by Nicca Chemical Co., Ltd.) at 40° C. and dehydrating and drying.

Dye bath prescription A C1'bacron Navy FG
2% awf (Ciba Geigy Co., Ltd. reactive dye) Anhydrous sodium carbonate 20 Momme anhydrous sodium sulfate 100 External dyeing bath formulation B (Nicca Chemical Co., Ltd. Level dyeing agent for wool) Acetic acid 0.8% Ammonium sulfate 2% lAs a result, this Vivid, same-color dyeing was obtained by the method of the invention. It also had features such as being insect repellent and having excellent color fastness.

On the other hand, a comparative example that did not use a halogenated aromatic compound had an unclear hue and poor fastness.

Patent applicant: Toyobo Co., Ltd.

Claims (1)

[Claims] 1. When dyeing a cellulose fiber/natural polyamide fiber mixture with a dye that has an affinity for cellulose fiber, a halogenated product containing sulfonic acid and/or sulfonate salt before or during dyeing. How to dye cellulose fiber/natural polyamide-like field-mixed products that are treated with aromatic compounds. 2. Dyeing of cellulose glue/natural polyamide fiber mixture product as described in the claims, wherein the halogenated aromatic compound is a compound represented by the formula N [(, L, M: hydrogen atom, alkali metal, ammonium group) Method.