JPS5887363A - Refining of fiber 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 relates to a novel MIN process for textile products using low temperature oxygen plasma.

'MIN' as used in the present invention goes beyond the conventional concept of removing impurities attached to In using an alkaline substance and/or a surfactant, and is used to eliminate problems in subsequent processes such as raw whitening, dyeing, etc. It is used in the broad sense of eliminating processing impediments caused by impurities in the fibers.

Originally, when the fiber material is a natural fiber, the fiber itself has impurities as impurities, and impurities such as oils and glues are added as impurities during the spinning and 11 cloth processes.

In addition, in the case of 9 synthetic fibers, impurities such as spinning oil, corning oil for yarn, or oil and sizing agents are added as impurities during the fabric-making process.

These impurities generally have some water repellency,
If bleaching or dyeing is performed without scouring, bleaching or dyeing spots will occur due to non-uniform penetration or insufficient penetration of the bleaching solution or dye solution. is being carried out.

Naturally, refining by traditional methods requires
It requires a scouring agent, a scouring aid, water, and steam, and furthermore, it requires wastewater treatment for wastewater after scouring, which involves many high-cost factors.

The present invention was made in view of the current state of ICs.

Based on a new idea that is completely different from conventional scouring methods, it is possible to create a conventional scouring method in a short time without using any scouring agents, scouring aids, etc. that are essential for conventional scouring wI. The purpose of this is to perform a refinement with a refinement effect that is approximately the same as that of the previous method.

In order to achieve this object, the present invention has the following configuration. That is, 1 the present invention provides textile products with a concentration of 0.1 to 1
Mi11 method for textile products, which is characterized by treating oxygen or a mixture of oxygen and other gases at a reduced pressure of 0 Torr with low-temperature oxygen plasma generated by irradiating high frequency waves, and for textile products at 0.1 Torr. A mixture of oxygen or oxygen gas and other gases at a reduced pressure of ~10 Torr is treated with low-temperature plasma of oxygen generated by irradiating high frequency waves, and then I
C/li! This is a scouring method for textile products, which is characterized by dissolving and removing impurities of 4M male which have been solubilized through a scouring process. The method of the present invention does not use any scouring agent or scouring aid, so basically no water or steam is required for the 2M scouring itself. First, it is extremely resource-saving and labor-saving.

The present invention will be explained in detail below.

Delicate in the present invention refers to cotton, natural fibers such as silk and hemp, semi-synthetic fibers such as viscose rayon and acetate fibers, polyester/L' fibers, nylon fibers, dahliaacrylonite fibers, and vinylon fibers. Refers to organic fibers other than synthetic fibers such as fibers.

Furthermore, the term "textile products" as used in the present invention refers to products obtained by modifying the above-mentioned fibers to some extent.

Specifically, raw cotton, top, tow, spun yarn, filament yarn, bulky processed yarn, interlaced yarn, 9m woven fabrics made from these yarns, and non-woven fabrics (however).

(excluding fabrics containing cotton), as well as secondary products such as socks and sweaters.

In the present invention, the fibers may be used alone or in combination of two or more types.

In the present invention, textile products are treated with low-temperature oxygen plasma! iI4 training will be held.

Low-temperature plasma of oxygen can be generated by irradiating high frequency to oxygen or a mixed gas of oxygen and another electric substance under a reduced pressure of 0.1 to 10 Torr Ic.

In the method of the present invention, not only a gas containing 100% oxygen, but also a mixed gas of oxygen and a gas other than the e11 element can be used, and the gas other than oxygen is nitrogen.

Examples include helium, argon, returned acid gas, fluorine oxide, and water vapor. Therefore, it goes without saying that a static gas mixture of oxygen and nitrogen can also be used in the method of the present invention.

The higher the mixing ratio of oxygen, the higher the yield and the faster the processing speed; however, in normal industrial production, it is desirable that the oxygen content be at least 5%. The degree of vacuum in the processing machine during plasma processing must be such that low-temperature oxygen plasma (or unimpinged plasma) is generated by the irradiation, and the temperature of the processing atmosphere is at a level that does not damage the processed textile products. Any condition is acceptable, generally 0.1 to 10To
rr is preferably in the range of 0.5 to 2 Torr. Regarding the reduced pressure conditions, when the degree of reduced pressure exceeds 10 Torr, the generation of low-temperature plasma of oxygen becomes unstable.
Moreover, since the temperature of the processing atmosphere increases, there is a risk of damaging the processed textile products.
Maintaining the pressure at a high degree of vacuum below orr not only increases costs, but also lowers the oxygen concentration, which may reduce the plasma processing effect. High-frequency I4f irradiation to generate low-temperature plasma of oxygen! The number is.

Although it can be used in a fairly wide range from long wavelengths to short wavelengths, IJ! Due to regulations such as the Radio Law, 13.56 MHz, 27.12 MHz,
40.68 MHz, 915 MHz2450
Use one of MHz.

When 100% oxygen or a mixed gas containing oxygen is irradiated with high frequency waves at a reduced pressure of 0.1 to 10 Torr and high frequency energy is applied to elementary molecules, the oxygen molecules are excited and generate low-temperature plasma, making them reactive. Because it becomes rich in
The textile product is subjected to plasma treatment in this plasma atmosphere. Although the treatment time varies depending on the type and shape of the textile product, it is generally sufficient to carry out the treatment for about 3 to 600 seconds, and more preferably for 10 to 120 seconds.

In the method of the present invention, if volatile components such as moisture are removed to some extent by heating the textile product or by other methods before the low-temperature plasma treatment with oxygen, the disturbance in the degree of vacuum accompanying the introduction of the fabric will be reduced and the product will be stable. It is possible to carry out efficient operations. Removal of volatile components is
The lower the removal rate, the better the effect. In the present invention, a particularly good scouring effect on textile products can be obtained by adjusting the moisture content of the textile product to 596 IC or less, and then performing low-temperature defusal treatment with oxygen. .

Oxygen low-temperature defuma treatment as described above I! Water-repellent impurities contained in textile products are agglomerated and decomposed by l,
Compared to untreated products, the wettability (iI water) is significantly improved, and the permeability of water into the structure of the textile product is improved. When bleaching or dyeing textile products in such conditions, the movement of dyes, processing chemicals, etc. in the water bath is not hindered by impurities that have been made hydrophilic.
The constituent fibers m#c#l can be freely reached. In conventional scouring methods for textile products, scouring was performed by using an alkali substance or surfactant to remove impurity water-repellent components attached to fibers or textile products, but the scouring method of the present invention The method need not necessarily remove such impurities. The present inventors investigated impurities that inhibit post-processing, and focused on the fact that the impurity is not the impurity itself, but the water repellency of the impurity. They discovered that as long as they are made hydrophilic and quenched, it will not interfere with the subsequent process even if they are not removed, and they completed the scouring method of the present invention by using low-temperature plasma of oxygen as a method for making it hydrophilic. It was reached. As described above, in the scouring method of the present invention, it is not necessary to intentionally remove impurities from fibers or textile products, but it is necessary to remove impurities from the oxygen-based low-temperature pfusma treatment. If the A41111 product is left for a long time, some of the impurities that have been made hydrophilic tend to become hydrophobic again. Therefore, in the scouring method of the present invention, it is desirable from the viewpoint of stability of scouring to wet-process the textile product to dissolve and remove the easily soluble impurities from the textile product after the low-temperature oxygen plasma treatment. be.

In this case, the wet treatment is water washing or hot water washing.

This can be carried out by any one of scouring treatment, #A white treatment, marcefizing treatment, and dyeing treatment.

Normally, solubilized impurities are dissolved and removed by washing with water or hot water, but 21! There is no problem with skin treatment by conventional alkali scouring or surfactant treatment; in this case, only a small amount of alkaline substance or surfactant is used, and the impurities are solubilized in a short time. can be dissolved and removed. In addition, instead of the above-mentioned wet temperature treatment, hot water washing treatment, m-kneading treatment, it may be carried out by post-process bleaching treatment, mercephizing treatment, dyeing treatment, etc. In this case, it is possible to dissolve and remove solubilized impurities and to remove the solubilized impurities from the fabric. This is advantageous because bleaching, mercerization, dyeing, etc. can be carried out simultaneously. In any case.

Textile products that have been subjected to low-temperature oxygen treatment using the method of the present invention usually proceed to the next process, such as a bleaching process, a dyeing process, or a Marsefys process. It is desirable to carry out the treatment continuously up to the filtration treatment, and to remove impurities that have been oxidized and decomposed on the fibers and become soluble as soon as possible.

Next, the method of the present invention will be explained using the Ic5J example. *The evaluation of the scouring effect of the textile product in the example is 2. After the scouring of the textile product according to the method of the present invention, the fiber of the same standard was refined using the general conventional method. Dyeing was carried out under the same conditions as for the Il1 product, and the presence or absence of dye M in both products and the presence or absence of a hue difference between the two products was determined with the naked eye.

In addition, regarding color fastness, light fastness is JIS-L
-0842, washing fastness was measured according to JIS-L-0844, and rubbing fastness was measured according to JIS-L-0849v-.

Dormitory example 1 Take 60'/2 cotton thread made of 100% cotton into a general shape.

This was subjected to low-temperature Dedsma treatment using oxygen under the following treatment conditions 1. This step is the scouring step of the present invention.

Processing conditions 1 Gas used: Oxygen 100% Processing pressure: 0.5 Torr High frequency frequency: L5.56 MHz High frequency output
700W Processing time: 1 minute Next, trowel dyeing was carried out under the following dyeing conditions 11, which is normally carried out on defusma-treated rope.

Staining conditions 1 Kayaras 5upra Blue BRL 20
0 5*o, w, f.

(Direct dye made by Nippon Kayaku) Glauber's salt After dyeing at 25490℃ for 90 minutes, fix treatment under the usual conditions,
Washed with water and dried. The performance of the obtained introduction is shown in Table 1.

One sJ! for comparison with the method of the present invention! Prepare the edge of the same standard as the total of 60s4 of cotton yarn used in the example, and when dyeing this, instead of the W4 method of the present invention, 3% caustic soda and 1g6 of $ion activator, which have been commonly used in the past, were used.
Scouring was carried out using an aqueous solution of 100° C. for 30 minutes, and dyeing and fixing were performed under the same conditions as in this example.

Washed with water and dried. Combined with the performance of v4 bound, the first
Shown in the table.

From Table 1, it was found that the scouring method of the present invention has a scouring effect that is comparable to that of the conventional scouring method. The method of the present invention does not require a scouring agent, and moreover, it was possible to achieve the same scouring effect as the conventional Mi11 method in an extremely short period of time.

Example 2 An interlock knitted fabric (dated 20097d) using 150d of processed polyester yarn was prepared, and subjected to low-temperature glazma treatment of m waste under the following treatment conditions 2. This step is the scouring step of the present invention.

Processing conditions 2 Gas used Air processing pressure 0.7 Torr High frequency High frequency 1 wave number 1156 MHz High frequency output 2kl
/1.5mm Heat treatment time: 2 [] seconds This knitted fabric was then dyed using a liquid jet dyeing machine using the following dyeing condition 2 recipe, followed by regular water washing, /M washing, single washing, dk washing, and drying. , performed a set.

Staining conditions 2 Kayalon Polyester Navy Bl
ue R-3F' (Nippon Kayaku disperse dyeing I!4) 8
* o, w, r.

Fractional agent 19/1 Adjust pH to 5 with acetic acid and sodium acetate Bath ratio 1:25 150°C x 45 minutes The dyed fabric obtained was uniformly dyed without any dye spots, and the scouring method of the present invention is satisfied. It was confirmed that the plant had the desired essence #I kalpa.

According to the scouring method of the present invention, although the scouring process is greatly simplified compared to the scouring process performed in the conventional method, scum does not occur during dyeing.

There were no problems such as uneven dyeing or the need for dye solution penetration, and a dyed product that was the same as the conventional method was obtained.

Example 3 Prepare 190 wood taffeta using nylon 70D.

This was subjected to oxygen low-temperature defusma treatment under the following 30 treatment conditions. This step is the scouring step of the present invention.

Processing conditions 5 Gas used Air processing pressure 0.8 Torr High frequency 1! +, 56 MHz high frequency output 1B001/120m width processing time
Use glue for 50 seconds, #! On the 20-color, printing with a 1 ml wide stofide pattern was performed using the printing paste of the following printing paste recipe 2.

Printing paste prescription 1 Ktyanol Milling Blue BW
50 parts (Nippon Kayaku, Ni, lIl! Acid dye) Ethylene glycol 20 parts Ermine 30 parts Naf crystal gum (1:2) 60011 Ammonium tartrate 30 parts Water 270
Section printing paste formulation 2 Kayakiran Yellow GL 15
0 parts (type 1:2 metal-containing dye manufactured by Nipponka@K, Nippon) Ethylene glycol 40 parts Reshi A/$/n 20 parts Nafka crystal gum (1:2) 600 m water
510 parts Subsequently, steaming with saturated steam at 100° C. was performed for 20 minutes, followed by washing with water and drying.

The results were obtained using the conventional scouring method, namely treatment with a scouring agent and alkaline hot water at 90°C for 50 minutes, followed by water washing.

No difference was observed when compared with the prints printed under the drying condition.9 Both the color development and level dyeing properties were good. It was possible to achieve the same scouring effect as the conventional scouring method.

Example 4 A woven fabric was prepared using merry ester processed yarn 70 rV2 for the warp and 100% cotton yarn 60'/1 for the weft,
This is subjected to low-temperature defusal % of oxygen under the following processing conditions 4.
I went around the circle. This step is the scouring step of the present invention.

Processing conditions 4: Gas used: Acid 1100% processing pressure
I Toke high frequency frequency 15.56 MH Atsushi high waste wave output 50/120c1M width processing time
Padding dyeing was performed on the Pfusma-treated fabric for 20 seconds using the following dyeing condition 4 recipe.

Dyeing conditions 4 Pre-drying 100℃ x 2 minutes (using a non-touch dryer) ↓ Curing 200℃ x 90 seconds (using Thermoso A/411) ↓ Chemical pad steaming 100℃ x 60 seconds Aroma oxidation, soaping Performance of textiles dyed under normal conditions are shown in Table 2.

For comparison with the method of the present invention, a fabric of the same standard as the fabric used in this example was prepared, and it was treated with an aqueous solution of 10.5% of caustic soda and 110.5% of caustic soda, which has been commonly used in the past, for 100 minutes. C. A scouring treatment was performed for 50 minutes, and then padding dyeing was performed under the dyeing conditions of this example and the recipe 4. The performance of the obtained dyed fabrics is also shown in Table 2.

As is clear from Table 2, it was found that the scouring method of the present invention has a scouring effect that is comparable to that of the conventional scouring method. The method of the present invention does not require a scouring agent, and moreover, it was possible to achieve the same scouring effect as the conventional scouring method in an extremely short period of time.

Patent applicant: Unitika Co., Ltd.

Claims (1)

[Claims] 11) The textile product is treated with low-temperature oxygen plasma generated by irradiating high frequency to oxygen or a mixture of oxygen and other gases at a reduced pressure of 0.1 to 10 Torr. A method of refining textile products. (2) Textile products are treated with low-temperature plasma of oxygen generated by irradiating high frequency to oxygen or a mixed gas of oxygen and spear gas at a reduced pressure of 0.1 to 10 Torr Ic, and then subjected to temperature control treatment. A method for scouring textile products, characterized by dissolving impurities in the textile products that have been made easily soluble.