JPS5930090B2 - dust control products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flame-retardant dust control product, and more specifically, the present invention relates to a flame-retardant dust control product, and more specifically, by using a specific organic phosphate ester as a dust adsorbent, dust adsorption, dust retention, flame retardance, etc. The present invention relates to a dust control product that has excellent cleaning properties and eliminates negative effects on cleaning fiber materials, packing, etc.

In the present invention, the dust control product is a cleaning tool such as a wiping cloth, mop, or mat that adsorbs and retains dust by wiping or rubbing against the surface to be cleaned (see Japanese Patent Publication No. 54-33665). As adsorbents, synthetic or mineral-based lubricating oils or aqueous agents impregnated into the cleaning fiber materials of the cleaning tools described above are widely used. Although these dust control products are almost satisfactory in terms of their ability to adsorb and retain dust on the surface to be wiped, there are concerns that the impregnating oil is flammable. Therefore, there is a great risk of fire, and consideration must be given to fire prevention especially in dust removal mats and the like placed in areas where many people come and go. Japanese Patent Application Laid-open No. 54-65183 proposed by the present applicant states that organic phosphate esters have remarkable dust adsorption properties and dust retention rates, and that by using them as dust adsorbents, It is disclosed that the antistatic and flame retardant properties of dust control products can be significantly improved.

Among organic phosphate esters, the present inventors found that when used as a dust adsorbent, the dimerized organic phosphate ester described in detail below has a low migration rate to the surface to be cleaned and has a flame retardant effect. Moreover, it has no adverse effect on cleaning fiber materials (hereinafter sometimes simply referred to as fibers), mat packing, or the paint film on the surface to be cleaned, and when used in dust control products, it has excellent effects and effects. was found to be effective. According to the invention, HA chant υ υ
In the n1 formula, R1 is an alkylene group or alkylene ether group having 2 to 6 carbon atoms, and R2, R,, R4 and R,
Each of these is a chloroalkyl group or a bromoalkyl group having 1 to 5 carbon atoms, and these may be the same or different. A dust control product having dust adsorption and dust retention properties is provided.

The organic phosphoric acid ester used in the present invention is characterized in that it has a chemical structure in which two alkyl groups having a chloralkyl group or a promoalkyl group are connected via an alkylene group or an alkylene ether group.

Due to this feature, the organic phosphate ester used in the present invention has a higher content of phosphorus and halogen atoms than the ordinary organic phosphate ester disclosed in the above publication, and has a significantly superior flame retardant effect. It has the advantage of being In the present invention, the cleaning fiber material refers to fibers that are to be rubbed against the surface to be cleaned to adsorb and retain dust.

Furthermore, since this product is a dimerized phosphoric acid ester, it has the advantage that it has little adverse effect on fibers, matte backing, or the coating film on the surface to be cleaned.

Generally, organic phosphate esters are polar solvents, such as nitrile-butadiene rubber (NBR), which has excellent chemical resistance.
However, the organic phosphoric acid ester used in the present invention has little or no such adverse effect. Furthermore, the dimerized organic phosphate ester used in the present invention has excellent dust adsorption and dust retention properties, and surprisingly, the amount transferred to the surface to be cleaned is lower than that of ordinary organic phosphate esters. It is possible to prevent various negative effects caused by the dust adsorbent transferred to the surface to be cleaned.

In the above general formula, the chloralkyl group or bromoalkyl group having 1 to 5 carbon atoms represented by R2 to R,
Although a monochloroalkyl group or a monobromalkyl group can be changed to a perchloroalkyl group or a perpromalkyl group, a monochloroalkyl group or a hinopromalkyl group is preferable from the viewpoint of preventing an adverse effect on the surface to be cleaned. Suitable examples of organic phosphate esters include, but are not limited to, the following:

Tetrakiz(2-chloroethyl)ethylene glycol diphosphate. Tetrakiz (2-chloroethyl) diethylene glycol diphosphate.

The former is available as Nonnene C-18 manufactured by Marubishi Yuka Kogyo Co., Ltd., and the latter is available as CR-505 manufactured by Daihachi Chemical Industry Co., Ltd.

The organic phosphate ester can be retained on the cleaning fiber material by coating or impregnating it alone, but if desired, it can be retained on the cleaning fiber material in the form of an organic phosphate-containing oil agent.

Is it 20 weight as an oil agent containing organic phosphate ester? Above, in particular, 30% by weight or more of an organic phosphate ester,
80% by weight or less, especially 70% by weight? Combinations with the following mineral lubricating oils or synthetic lubricating oils can be used. Mineral oils include spindle oil, dynamo oil, turbine oil, machine oil,
Insulating oils, etc. are used, and synthetic oils include olefin oils, chlorinated paraffin oils, polyalkylene glycol oils, alkybenzene oils, alkylnaphthenate oils, diester oils, silicone oils, fluorinated hydrocarbon oils, and the like. This organic phosphate ester or organic phosphate ester-containing oil agent contains surfactants, dyes, antioxidants, bactericides, antifungal agents,
One or more types of fragrances and the like can be blended.

1 to 10% by weight based on the organic phosphate ester, etc., for the purpose of controlling dust collection and dust retention properties.
It can be contained in an amount of Fibrous materials for cleaning include natural fibers such as bulp and cotton, as well as chemical fibers and synthetic fibers such as rayon, vinylon, polyester, nylon, and Teviron (polyvinyl chloride, polychloride, etc.) alone, blended, or blended. Examples include those in the form of , knitted fabric, mopped cord, pile thread, nonwoven fabric, or paper.

The present invention is particularly useful for dust-collecting mats whose pile yarns are made of synthetic fibers. Such dust-collecting mats are made by tufting threads made of synthetic fibers or a combination of synthetic fibers and cellulose fibers on a base fabric to form pile threads, and then coating latex such as synthetic resin or synthetic rubber on the back side of the pile threads. It is manufactured by coating and forming a backing. The amount of organic phosphate ester or organic phosphate ester-containing oil that is attached to or impregnated into cleaning fibers varies depending on the type of fiber material, but it has an effective effect on the effective fiber portion of the fiber material, that is, the dust control within the fiber. 2 to 50 weight for the fiber part? It is preferable to select an appropriate amount depending on the fiber, particularly from a range of 5 to 20% by weight.

When the applied amount of organic phosphate ester, etc. is less than the above range, there is a tendency that sufficient dust adsorption and retention properties cannot be obtained.On the other hand, when the applied amount is more than the above range, the phosphoric acid Ester etc. tend to migrate onto the wiped surface. To apply the organic phosphate ester or organic phosphate ester-containing oil to the fibers, any method known per se such as roll coating, spraying, and dipping can be used, but in general, the roll coating method is used to apply the organic phosphate ester-containing oil to the fibers. It is simple and efficient to apply to fibers.

The organic phosphoric acid ester or organic phosphoric acid ester-containing oil agent can also be applied in the form of a diluted solution dissolved or dispersed in an appropriate solvent. For example, these dust control agents can be applied as a solution in a readily volatile organic solvent, such as an aromatic solvent, and then dried and applied to the fibers in a uniform thin film. In addition, an oil-in-water emulsion is formed using a cationic surfactant, an amphoteric surfactant, or a combination of these nonionic surfactants as a dust control agent, and the fibers are immersed in this aqueous emulsion. Dust control agents can also be absorbed into the fibrous matrix. As shown in the examples below, the dust control product of the present invention effectively adsorbs dust from the surface to be cleaned onto the fibers, and also retains the adsorbed dust without releasing it. Not only does it have outstanding properties like conventional oils in terms of durability and dust retention, but it also transfers to the surfaces to be cleaned in an extremely small amount, making it highly resistant to fibers, matte backing, and the surfaces of various paints and molded products that are to be cleaned. It has the advantage of having almost no adverse effects and also has a significantly superior flame retardant effect. These combined properties are particularly remarkable in the case of fibers mainly composed of synthetic fibers such as polyvinyl alcohol fibers, polyester fibers, acrylic fibers, polyamide fibers, and polyvinyl chloride fibers. It has the advantage that esters and the like can be expressed by applying a small amount of about 2 to 10% by weight.

The invention is illustrated by the following example.

In this specification, % and parts are based on weight unless otherwise specified.

Example 1 A woven fabric (approximately 22
09/7rI1 thickness approximately 1m77! )40CWLX40
cm (approximately 35.59 mm), immersed in a 20% isopropyl alcohol solution of tetra-scratched (2-chloroethyl) diethylene glycol diphosphate (Daihachi Kagaku Kogyo Co., Ltd., trade name CR-505) for 2 minutes, and removed. After taking it out, it was squeezed well and left to dry in a hot air dryer set at 80°C for 1 hour.

The following dust test r was conducted on the cloth coated with this CR-505 and the above woven cloth (uncoated), and the dust adsorption performance was compared. The results are shown in Table 1 below.

1 piece of the above cloth cut into 10cm x 10cm pieces (2
．． 269) and twice the weight of the cloth (its particle size distribution is shown in Table 2) in a plastic container, cover with a lid and shake well to uniformly adhere the silica sand powder to the cloth.

This material is then subjected to constant mechanical vibration to shake off the silica sand powder that is weakly attached to the cloth. The weight increase rate before and after this operation was defined as the dust collection rate. That is, here, a: Fabric weight before the test b: Fabric weight after the test From the above results, it was revealed that dust adsorption performance was imparted to the woven fabric by applying CR-505.

Example 2 99.85 parts of tetra-wound (2-chloroethyl) ethylene glycol diphosphate (manufactured by Marubishi Yuka Kogyo Co., Ltd., trade name Nonnene C-18) and Briventol A-4 (BA
A dust control agent consisting of 0.15 parts of anti-mold agent manufactured by YER was applied to vinylon pile mat (weight approx. 7009, pile approx. 4009, approx. 0.6
509 was applied uniformly to (b) and placed at the entrance of a supermarket for one week.

At the same time, pine with the same specifications without the dust control agent applied was placed side by side in the same doorway, and after a week, the pine that had been coated became much darker than the pine that had been applied, and the difference in blackening was clear. The weight changes of the mat before and after laying were as follows.

Step on both mats lσ1, and then t
The dust counter (ROYC) measures the number of dust particles scattered at the time.
(manufactured by O Company) and compared the tanto retention performance.

The numerical value is the number of dust particles larger than 5μ in the air11 (10,000 particles/l)
) As described above, it has become clear that non-coated pine with C-18 has a much better dust retention performance than non-coated pine.

Example 3 Nonnene C-18 produced in the same manner as in Example 2 was
A flame retardant performance test was conducted on the vinylon pile mat coated with 9 coated vinylon according to the Air Mix Burner Act (Article 4-3 of the Fire Service Act Enforcement Regulations, revised in 1978).

Claims (1)

[Claims] 1 General formula ▲ Numerical formula, chemical formula, table, etc. ▼ In the formula, R_1 is an alkylene group or alkylene ether group having 2 to 6 carbon atoms, and each of R_2, R_3, R_4 and R_5 is a carbon It is characterized by being made by holding an organic phosphate ester represented by a number 1 to 5 chloroalkyl group or bromoalkyl group, which may be the same or different from each other, in a cleaning fiber material. A dust control product with dust adsorption and dust retention properties. 2. The dust control product according to claim 1, wherein the organic phosphate ester is tetrakis(2-chloroethyl)diethylene glycol diphosphate. 3. The dust control product according to claim 1, wherein the organic phosphate ester is tetrakis(2-chloroethyl)ethylene glycol diphosphate. 4. The dust control product according to claim 1, wherein the organic phosphate ester is retained in an amount of 2 to 50% by weight based on the effective fiber portion of the cleaning fiber material. 5. The dust control product according to claim 1, wherein the cleaning fiber material is a knitted fabric, motsu cord, pile thread, nonwoven fabric, paper, or mat.