JPH03180579A - Aerosol fiber darkening agent - 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] [Industrial Application Field] The present invention provides a household aerosol containing a specific silicone compound that is effective in improving the color development of dyed products and improving the depth and clarity of colors. This invention relates to fiber darkening agents.

[Conventional technology and its problems]

BACKGROUND ART Conventionally, a major drawback of synthetic fibers, particularly polyester fibers, has been that the depth and clarity of the colors of dyed products are inferior to that of natural fibers such as wool and cotton.

Regarding natural fibers, although wool has good color development, as it is repeatedly worn, the surface becomes shiny and the depth of the color decreases, while with cotton, the surface of the fiber becomes dull as it is worn. As a result, there is a problem that the depth of color is reduced.

For this reason, research has continued to improve the vividness and color depth of dyed products, and several reports have been made.

For example, "Dye and Medicine J Vol 15; Ni11
．． Pages 3 to 8 (1970) explains experimentally and theoretically that when a dyed cloth is wet with water, it appears darker and the color is more vivid, and the reason is that the surface reflectance is reduced.

Various proposals have been made to create depth in color by forming a low refractive index film on the fiber surface.

JP-A-53-111192 proposes a method for forming a thin film made of a polymer having a refractive index of 1.50 or less. In addition, Japanese Patent Application Laid-open No. 55-26232 discloses that a compound having a low refractive index of 1.45 or less is adsorbed on the surface of a fiber structure in a thin film form from 0.3% to 10%, and Discloses a method for processing, and uses a fluorine-based resin whose polymer has a refractive index of 1.45 or less as a raw material for forming a thin film;
The use of acrylic ester resins, vinyl polymers, and silicone resins is mentioned, and specific examples include emulsions and solvent solutions of fluorine-containing compounds and acrylic esters, which are dipped and adsorbed at high temperatures, or after spray coating. , discloses a method for forming thin films on fibers by dry heat or hot heat treatment.

However, the methods described in these reports require plasma polymerization or graft polymerization, or require dry heat or warm heat treatment after dipping or spraying, so they cannot be carried out at home.

As a treatment agent that can potentially be treated at home, there is a report on an anti-shine agent using amino-modified silicone and/or quaternary ammonium salt-modified silicone (Japanese Patent Application Laid-Open No. 64-61576). It is stated that it can be used in the form of a handy spray or an aerosol, and the main method of use is immersion treatment in the form of an emulsion dispersed in water or an aerosol. However, when treating objects with an emulsion dispersed in water, the drying rate of the treatment agent is extremely slow in both immersion treatment and aerosol treatment, making it inconvenient to use.
Moreover, due to the slow drying speed, the silicone base does not stay on the fabric surface but permeates into the interior of the fabric, making it difficult to form a thin film on the fabric surface, making it impossible to achieve a sufficient effect.

Regarding drying speed, a common method is to increase the drying speed by mixing a low-boiling point solvent into the solution, but if a large amount of low-boiling point solvent is mixed into the continuous layer of the emulsion, the H of the emulsifier will increase.
The LB balance is destroyed, and furthermore, the difference in specific gravity between the silicone emulsion, which has a specific gravity close to that of water, and the continuous layer becomes large, resulting in very poor stability of the emulsion, which poses a serious problem in practice.

Additionally, the same report states that it is possible to use organic solvents such as ethanol, acetone, and ethylene glycol in combination; Since the solvent is a benzene-based organic solvent such as toluene or a chlorine-based organic solvent such as chloroform, it is not preferable for use in general households from the viewpoint of irritating odor and safety. Furthermore, when ethanol, acetone, ethylene glycol, etc. are used, silicone is present in the form of an emulsion, which causes the same problem of emulsion stability as described above.

[Means to solve the problem]

The present inventors have conducted intensive studies to find a color darkening agent or shine remover composition that can easily darken fibers and remove shine at home.
The inventors have now completed the present invention by discovering that the above object can be achieved by using a silicone compound having a specific molecular weight range in combination with a specific silicone compound as a darkening effect improver.

That is, the present invention provides (a) a silicone and/or silicone derivative having a refractive index of 1.50 or less and a number average molecular weight and/or a weight average molecular weight of less than 100,000; (b) a silicone derivative having a number average molecular weight and/or a weight average molecular weight of less than 100,000; Contains 100,000 to 1,000,000 silicone and/or silicone derivative (c) LPG, and the above (a) component and (i) component are uniformly dissolved in the (c) component, and (d) A lower alcohol having 1 to 3 carbon atoms at a weight ratio of (c)/(d) of 1010
The present invention provides an aerosol fiber color deepening agent characterized in that it contains an aerosol fiber coloring agent in a proportion of 2/8 to 2/8.

(a) Component silicones include dimethylpolysiloxane, quaternary amino-modified dimethylpolysiloxane, amino-modified dimethylpolysiloxane, epoxy-modified dimethylpolysiloxane, carboxy-modified dimethylpolysiloxane,
A common silicone compound such as polyoxyalkylene-modified dimethylpolysiloxane having a refractive index of 1.50 or less and a number average molecular weight and/or a weight average molecular weight of less than 100,000 is used. The refractive index is measured using an Atsube refractometer or the like.

As component (b), a normal silicone compound is used like component (a), but its molecular weight is 100,000 to 100.
Anything within the range of 10,000 is used. The reason why component (b) is useful as a dark coloring effect improver is not necessarily clear, but it is presumed that it is due to the effect of component (a) in improving the film-forming properties on the fiber surface. Component (b) exhibits the effect of improving dark color when blended in an amount of about 0.01 to 5% by weight in the aerosol fiber darkening agent.

In the composition of the present invention, components (a) 1 min and (b) are uniformly dissolved in (c) the propellant LPG which is rfi, min. If a propellant such as carbon dioxide or dimethyl ether is used instead of LPG, component (a) will separate without dissolving, but if components (a) and (b) are not uniformly dissolved, sufficient No darkening effect can be obtained.

Depending on the molecular weight of the silicone selected when spraying the composition of the present invention, if the silicone is dissolved in LPG alone, aerosol fine particles will fly up when the aerosol is sprayed, and the proportion of silicone that reaches the surface of the object to be treated will be significantly small. It may happen. In this case, the particle shape and spray state are improved by adding (d) a lower alcohol having 1 to 3 carbon atoms. Examples of lower alcohols used in this case include ethanol, isopropyl alcohol, etc., and ethanol is particularly preferred. Component (d) is preferably used in a weight ratio of 1010 to 2/8 (c)/(d). Preferably, more preferably 7/3 to 3/7
This is the percentage of

In the aerosol fiber darkening agent of the present invention, the amount of silicone (a) added is not particularly limited, but it is preferable that the total amount of silicone is 0.01 to 5% by weight based on the weight of the clothing. However, the effect does not usually change even if the amount is 2% by weight or more.

Specific examples will be specified in the Examples, but for example, 0.2 to 5% by weight of silicone (a) may be added to an aerosol and the composition may be sprayed onto clothing. The weight ratio of component (a) to component (b) is preferably in the range of (a)/i) -50/1 to 1/10.

The aerosol fiber coloring agent of the present invention can be used for clothing made of natural fibers, synthetic fibers, and blended fibers.

Since the aerosol fiber coloring agent of the present invention contains LPG (c) as an essential component, it is not necessary to mix other propellants, but it is possible to reduce flammability, reduce cost, and use silicone and other propellants. Conventional propellants such as n-butane, chlorofluorocarbon gas, carbon dioxide, dimethyl ether, etc. can also be used in combination for the purpose of improving the solubility of additives.

Furthermore, the composition of the present invention may optionally contain the above (a) to (
c) In addition to component (d), a surfactant as a fixing agent on the silicone fiber surface, a polyhydric alcohol to impart spreadability to the fiber, and a palatable fragrance to impart a pleasant aroma. Fragrances, rust preventive agents for aerosol containers, silicone stabilizers, fabric softeners such as quaternary ammonium salts to improve the feel of fabrics, antistatic agents, and small amounts to adjust the drying rate on the fiber surface. Water etc. can be added. The composition of the present invention is made into a product by filling it into an aerosol container by a conventional method.

〔Example〕

The present invention will be explained below with reference to examples, but the present invention is not limited to these examples. In addition, in the examples, all % means weight %, and %owf means % by weight. weight of fabrt
c).

Various aerosol fiber darkening agents were prepared using various silicones (1) to (4) shown below.

The pressure of LPG used for aerosol is approximately 3.0 kg/
C111 (20°C), but the pressure of LPG is not particularly limited to this and can be selected arbitrarily.

Refractive index 1.41 (25°C) Refractive index 1.43 (25°C) Refractive index 1.41 (25°C) Refractive index 1.40 (25°C) 110 pairs of silicone (1) % Balanced ethanol Silicone (2) ■ % Balance Ethanol Silicone (3) i% Balance Ethanol Silicone (4) 1% PG Balance Ethanol 0 Note that the molecular weights of the dimethylpolysiloxanes used in Examples 1 to 4 are all weight averages.

Specific gravity 1 tL Silicone (1) PG Ethanol 1% Balance 7 and 1 day hardness Silicone (2) PG Ethanol 1% Balance 7 And (04 history Silicone (3) PG Ethanol% Balance Kitamoto 0 Crude L Silicone (4) PG Ethanol 1 % Balance 0 Using the aerosol fiber darkening agents prepared in the above Examples and Comparative Examples, the darkening effect was evaluated in the following manner.

<Evaluation of darkening effect> The aerosols of Examples 1 to 3 and Comparative Examples 1 to 5 were applied to each black test cloth of cotton (plain weave), polyester (georgette), and wool (surge) as a silicone base. .5%
After spraying with owf, the compositions were allowed to stand for 30 minutes under the environmental conditions of 20° C. and 65% relative humidity, and then the color deepening effect of each composition was evaluated. For evaluation, a color difference meter (Modelool 0P) manufactured by Nippon Denshoku Industries Co., Ltd. was used, and the dark color of the sample: Δ
The L value (the larger the value, the greater the color deepening effect) was determined.

Based on the obtained ΔL value, the following six grades of A to F were evaluated.

2.5<-ΔL...A (large effect) 2.0
< −ΔL ≦2.5 ... B1.5 < −
ΔL≦2.0...C1,0〈-ΔL≦1
．． 5...Do, 5〈-ΔL≦1.0...
EO<-ΔL≦0.5...F (small effect) These evaluation results are shown in Table 1.

From Table 1, it can be seen that the aerosol fiber color darkening agent of the present invention is particularly excellent in the color darkening effect of clothing.

〔Effect of the invention〕

According to the present invention, an aerosol fiber darkening agent is obtained which is effective in improving the color development of dyed products and improving the depth and vividness of colors.

Further, the aerosol fiber darkening agent of the present invention can be used as a shine removing agent that removes shine generated on fibers by darkening the fibers.

Claims (1)

[Claims] 1(a) Silicone and/or having a refractive index of 1.50 or less and a number average molecular weight and/or weight average molecular weight of less than 100,000;
or silicone derivative (b) containing silicone and/or silicone derivative (c) LPG having a number average molecular weight and/or weight average molecular weight of 100,000 to 1,000,000, and the above (a) component and (b) component are ( c)
It is uniformly dissolved in the components, and (d) has a carbon number of 1 to 3.
lower alcohol in a (c)/(d) weight ratio of 10/0.
An aerosol fiber darkening agent characterized by containing the coloring agent in a proportion of 2/8 to 2/8.