JPS6339980A - Aerosol type water and oil repellent - Google Patents

Abstract

PURPOSE:To provide the title water and oil repellent which is excellent in water and oil repellency, durability, safety, and odorlessness and less susceptible to whitening, which comprises a water and oil repellent component comprising a fluororesin and a particular paraffinic solvent. CONSTITUTION:0.1-1.0 wt% (on an effective solid basis) water and oil repellenet component (A) comprising a fluororesin is blended with 2-15 wt% paraffinic solvent (B) contg. 80 25% or more 7-12C n- or isoparaffin, other solvent (C), such as fluorocarbon, halogenated hydrocarbon or aromatic solvent (e.g., triculorotrifluoroethane), in an amt. of, e.g., 72-80 wt% and, if necessary, a propelland gas (D) (e.g., propane) in an amt. of 9-15 wt%.

Description

[Detailed description of the invention] TECHNICAL FIELD The present invention relates to an aerosol type water solution.

In recent years, with the improvement of the standard of living of general consumers and the modernization of life, textile clothing, etc. has been given water-repellent properties and oil-resistant properties to prevent liquids from being molten or to be resistant to oil and stains. There has been an increasing demand for a treatment that can be easily removed by washing. In response to this, various B4 oils, especially some near-sea μ agents, are commercially available from the point of view of ease of use, but none are satisfactory in terms of water retrieval performance, whitening phenomenon, safety, odor, and economic efficiency. None have yet been developed.

In other words, mineral oil and silicone were initially used as oil-producing ingredients for pumped water, but their performance was insufficient, and moreover, due to the mechanism of action, the effect was obtained by coating fibers, etc. This has disadvantages in that it impairs the breathability of the fibers, and the durability (sustainability of water-retaining properties) and washing resistance cannot be expected.

The fluororesin JJll and water thorn oil component that was subsequently developed have the effect of replacing the treated surface of fibers with a fluorine compound and lowering the surface energy of the treated surface, and the JM water aqueous performance does not impair breathability. Although some improvement was achieved, the fluororesin component precipitated on the treated surface after treatment, causing problems such as noticeable whitening, especially on black clothing and leather products.

This occurs when the solvent evaporates before the fluororesin component penetrates into the interior of the treated surface of the fibers, etc., and the components remaining on the surface are likely to dislodge due to wear and tear, causing a lack of durability. Ta.

Therefore, in order to increase the solubility of the fluororesin component and to penetrate it with the internal Kt of m-fibers, etc., for example, If 1.1.1-
A method has been taken to use a chlorinated solvent such as trichloroethane (chlorocene) nat, but it is not sufficiently effective in suppressing whitening, and furthermore, it imparts the unique odor and anesthetic properties of the solvent, so it cannot be used in large quantities indoors.

On the other hand, low-boiling point alcohols such as ethyl alcohol and vegetable oil may be considered as safer solvents with less characteristic odor, etc.; If used for this purpose, it is undesirable as there is a risk of fire etc.

In view of the above-mentioned current situation, the inventors of the present application have conducted various research and examinations as a means to solve the problem (focusing on the solvent that plays a particularly important role in terms of performance and range of use in Kisumitsuki oil compositions). As a result, we discovered the following interesting facts.

That is, fluororesin system 1v: Norma p having 7 to 12 carbon atoms or isoparaffin is used as a solvent for Suien oil component.
Paraffinic solvent containing 0% or more in Near Sea μ stock solution
When used in an amount of 15% by weight, K not only exhibits excellent water pumping performance and durability, but also significantly reduces the whitening phenomenon, and furthermore, when used in combination with chlorocene, the concentration of chlorocene can be lowered to below 1. It was discovered that this greatly contributes to improving odor and safety.

Thus, the present invention has been completed based on the above-mentioned novel findings, and the obtained aerosol type water solution (oil-resistant agent) can be used without impairing the breathability and texture of the fibers, etc. Regardless of the type, it provides excellent lubrication performance and usability.

The composition of the fluororesin thread joint oil component used in the present invention is not particularly limited, and the effective solid content is 0.1 to 1.0% by weight.

If it is less than 0.1% by weight, the effect will be poor, and if it exceeds 1.0% by weight, it will not only be uneconomical but also spoil the texture of the fibers, etc.

The present invention is particularly characterized in the selection of a solvent for dissolving the water-stirred oil component of a fluororesin-based agent.
It is essential that 80% or more of the paraffinic solvents that account for 9 to 15% of the stock solution be contained in the [mu] or isoparaffin fluxicone having 7 to 12 carbon atoms as shown below.

n-hebutane b. p. 98°C Isohebbutane n-octane b. p. 125'C isooctane n-nonane b. p. 150°C isononane n-decane b. p. 174°C Isodecane n-Undecane b. p, 195°C isoundecane n-dodecane b. p, 216°C Isododecane is often obtained as a mixed solvent of these, for example, petroleum distillates such as ligroin, hebutane,
Those whose main component is octane, and Isopar C. manufactured by Exxon Chemical Co., Ltd. Of course, inbafine hydrocarbons such as E, G, H, L and Ivy Sop Pent 1620 manufactured by Idemitsu Petrochemical Co., Ltd. can also be used.

Paraffinic solvents with carbon numbers of 7 to 12 have a water-repellent component that is less resistant to water than the treated surface due to the solubility of the fluororesin-based oil component, suitable drying properties, and chemical properties that are gentle to the treated surface. It penetrates into the interior and helps the components to be distributed uniformly throughout the treated area, thereby preventing whitening and providing excellent water repellency and durability.

On the other hand, when the prime number is 6 or less, the boiling point is too low and the solvent dries quickly on the treated surface, leaving a portion of the water component on the surface, resulting in a whitening phenomenon. If the number of carbon atoms exceeds 13, the boiling point will be too high and the drying properties will be extremely poor, impairing the feel of use.
Even if 12 is unsaturated, it is difficult to use because it has a unique odor, reactivity, and dissolving power when other elements are added. In addition, the blending amount of paraffin solvent is preferably 2 to 15% by weight, and if more than 15% by weight is used in the aerosol stock solution, it may affect the solubility of the 4-part oil components and the drying properties after aerosol injection. It became clear that this would cause problems.

Furthermore, other types of solvents that can be used in combination with the above paraffinic solvent include fluorocarbons, halogenated hydrocarbons, aromatic solvents, etc., but are not limited to them, but fluorocarbons are preferred, particularly F113 () Fluoroethane), a mixed solvent of 1i'l13 and chlorocene, etc. are preferably used.

Trichlorotrifluoroethane is not only nonflammable, but also has little solvent odor and does not damage fabrics.

Since it has a relatively low boiling point, it has high drying properties during use, and its blending amount is appropriately determined in consideration of the balance with the paraffin solvent.

A propellant gas is added to the aerosol stock solution prepared in this way using a conventional method, and the mixture is filled into a suitable air-sealed container to obtain a near-sea μ
Type 4 dead water 4 companies oil solution can be obtained.

The injection gas is preferably liquefied petroleum gas, particularly propane. If necessary, chlorofluorocarbon gas, dimethic acid, etc. can be used, but they can only be blended in an amount of about 20 to 30% in the injection gas. It is preferable that the blending amount be as small as possible, but if it is less than 5.0% by weight, it will be difficult to achieve near-see μ, and if it exceeds 15% by weight (dead water JE oil effect will be reduced).

The s-card oil agent of the present invention can be applied to the article to be treated by any method. For example, by simply spraying it onto the treated area, it dries immediately and exhibits sufficient ice-removal properties, and of course,
After drying, it may be processed using an iron or the like. Furthermore, other active ingredients such as insect repellent 1.
It is also possible to add flame retardants, antistatic agents, dye colorants, detergent agents, etc. and apply it as a multi-purpose composition, and it goes without saying that fragrances and the like can be added according to preference.

There are no particular limitations on the articles that can be treated with the near-sea μ-type Kishizuku oil agent of the present invention, and various examples can be given. for example,
Textile textiles, glass and paper.

Wood, leather 9 fur 1 asbestos, brick, cement.

These include metals, industrial products, plastics, painted surfaces, and plasters.

Fiber fabrics include natural fibers of animal and plant origin such as cotton, linen, wool, and silk, polyamide, polyester, and polyvinyl.
Examples include various synthetic fibers such as A-co-1μ, polyacrylonitrile μ, and polypropylene, semi-synthetic fibers such as rayon and acetate, glass fibers, and mixed fibers thereof.

Next, examples of the present invention will be specifically described, but it goes without saying that the present invention is not limited thereto.

Example 1 (parts by weight)
Asahi Guard AG-650 (solid content 15%) 3.0 (
(as solid content) (0,45) Trichlorotrifluoroethane 77.0
Ivy Solvent 1620 10.
0 propane 10.
0 total 100.
0 parts by weight of AG-6503 manufactured by Asahi Glass ■ 77.0 parts by weight of trichlorotrifluoroethane and Idemitsu Petrochemical ■
Dissolve in 10.0 parts by weight of Ivyso μ Pen) 1620 to make a stock solution. Fill 90 parts by weight of this stock solution into a pressure-resistant tinplate container, attach the pulp for Near Sea μ, press-fit 10.0 parts by weight of propane, and attach the button to form the product. This aerosol product has a whitening phenomenon.

It suppressed water well, had extremely high water and oil repellent effects and durability, and was excellent in usability.

Example 2 (Parts by weight) Asahi Guard AG-6504.0 (as solid content) (0.6) Trichlorotrifluoroethane 70.0
Chlorocene 10.0 Ligroin 7.9 Fragrance (Daichi Fragrance (m) CH-6500, 1 Propane
8.0 total
100.0 AG made by Asahi Glass
-650 4.0 parts by weight is dissolved in 70.0 parts by weight of trichlorotrifluoride ethane and 10.0 parts by weight of chlorocene and 7.9 parts by weight of ligroin and 0.1 part by weight of fragrance are added thereto to prepare a stock solution. 92.0 parts by weight of this stock solution was filled into a tin pressure container, and 8.0 parts by weight of propane was added. Press fit the Ofi part and attach the bap for the near sea.

A button for Nyashi μ was attached to this product. This Niyashi product not only has excellent water-repelling performance and durability, but also has excellent usability as it does not cause any whitening phenomenon and suppresses the odor of chlorocene.

Examples 3 to 8 and Comparatives 1 to 14 were manufactured in the same manner as Example 1 according to the compositions shown in the table.

The results of each evaluation based on the following criteria are shown in the table.

The treated specimen is made of black cotton fabric, and the 4M water base is JIS.
Judgment was made according to L1092.

100: No adhering moisture on the surface 90: Slight adhering wetting on the surface 80: Showing moisture in the form of water droplets on the surface 70: Showing partial wetting on the surface 50. Showing 0: The surface shows complete wetness. Oil repellency was determined according to AATCCTe5t Method 118.

0: No effect 1: Nujol penetrates and is dangerous 2: Nujol/n-hexadecane ==65/35
(vol) does not penetrate 3: n-hexadecane does not penetrate 4: n-tetradecane does not penetrate 5: n-dodecane does not penetrate 6: n-decane does not penetrate 7: n-octane does not penetrate 8: n- Hebutane's impermeable texture, whitening, staining, and odor were determined through sensory testing.

O: No problem △: Slightly difficult points ×：Cannot be used Flammability was measured using a creepland open tester.

0: No flash point Yes: 2.0
~4.5Kp/ciiG Δ: 4.6Kg/adG or more x: 2. The results of less than OKg/cIIG (cannot be injected sufficiently) were combined to determine whether it was suitable or not as a near-sea μ type 7g water lubricant.

O: Appropriate Δ: Slightly unsuitable ×: Unsuitable As a result of the test, the aerosol type Kosui Jl oil agent of the present invention not only shows good Imaru water, oil repellent performance, and durability, but also shows no whitening phenomenon, flammability, etc. K can be said to be the best product for general home use without any problems.

Claims (1)

[Claims] An aerosol type water and oil repellent agent characterized by containing a fluororesin water and oil repellent component and 2 to 15% by weight of a paraffinic solvent containing 80% or more of normal or isoparaffins having 7 to 12 carbon atoms.