JPH039999A - Detergent for waterproof cable - Google Patents

Abstract

PURPOSE:To obtain the title detergent excellent in detergency for jelly, safety and sanitariness by mixing a specified n-paraffin with an aromatic hydrocarbon, an oil-soluble dye and a perfume each in a specified amount. CONSTITUTION:A detergent prepared by mixing a specified 11-17C n-paraffin, e.g. a mixture of n-undecane, n-dodecane and n-tridecane, with 1-20wt.% aromatic hydrocarbon, e.g. xylene, 0.0001-1.0wt.% oil-soluble dye, e.g. C.I. Solvent Red 24, and 0.001-10ppm perfume, e.g. benzyl acetate.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a waterproof cable cleaning agent, that is, a cleaning agent that easily removes dirt filled with waterproof cables for waterproofing when connecting waterproof cables of communication cables. It concerns cleaning agents for safe removal.

(Prior Art) Kerosene has conventionally been proposed as a cleaning agent to remove the dirt that is filled in the waterproof cable for waterproofing when the cable is connected, but this kerosene has a rather weak cleaning power against dirt. There was a drawback that the jelly remained on the polyethylene coating surface of the polyethylene-coated communication line in the cable without being removed, which caused a great deal of trouble in connection work of the communication line. Furthermore, the reality is that connection work is mainly carried out in narrow spaces with poor ventilation, such as manholes, tunnels, and handholes, and care must be taken to ensure the work environment is odorless and toxic; however, kerosene has a strong odor. Not only does this cause great discomfort to workers, but even after cleaning, the sticky mess caused by kerosene on hands and the residue of petroleum tools continue indefinitely.
There were drawbacks. Additionally, kerosene has a low flash point, which poses problems in terms of fire prevention measures.

As a cleaning agent to replace kerosene, for example, fluorohydrocarbon solvents such as Freon R-11 and Freon R-113 have low toxicity and are nonflammable, but they have the disadvantage that their cleaning power against the jelly of waterproof cables is inferior to that of kerosene. Ta. In addition, 1.1.2-trichloroethane, 1.2 of chlorohydrocarbon solvents
．． 3-1-Lichloropropane, 1.1.2.2-tetrachloroethane, trichlorethylene, perchlorethylene, etc. are nonflammable and have excellent cleaning power for the jelly of waterproof cables, but they have a strong odor and are toxic. It also had a big drawback. Furthermore, ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, methyl cyclohexanone, acetonitrile acetone, and ether solvents such as ethyl ether, isopropyl ether, n-butyl ether, n-hexyl ether, 1,2-propylene oxide, 1,4-dioxane and the like have drawbacks in toxicity, odor, and flash point. In addition, ester solvents such as methyl formate, ethyl formate, propyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, amyl acetate, ethyl butyrate, butyl butyrate,
Amyl butyrate, ethyl lactate, butyl lactate, amyl lactate, diethyl carbonate, etc. have strong odors (and glycol/ether solvents such as cellosolve, methyl cellosolve, butyl cellosolve, carbitol, butyl cavitol, etc. have drawbacks such as toxicity.

Also, carbon number C8-C1? The cleaning agent containing n-paraffin as a main component has drawbacks such as slightly inferior cleaning power to high-molecular-weight gelatin and difficulty in removing solidified gelatin.

As described above, many solvents have their own merits and demerits, and no cleaning agent having comprehensively excellent properties as a waterproof cable cleaning agent has been proposed.

(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned current situation, and has excellent cleaning power for waterproofing rings filled in waterproof cables, and has little influence on cable covering materials. To provide a waterproof cable cleaning agent that has little odor, a high flash point, does not leave sticky residue on hands after work, and solves the problems of toxicity and safety.

(Means for Solving the Problems) The waterproof cable cleaning agent of the present invention has a carbon number of CIl to C1f.
l-2°wt% of aromatic hydrocarbons in n-paraffin of f
At the same time as adding oil-soluble dye to 0.0001 to 1.0
It consists of a mixture of these, which is added at a concentration of 0.001 to 10 ppm.

Hereinafter, the configuration of the present invention will be explained in detail.

It is desirable to evaluate the cleaning power, sticky feeling, and odor of waterproof cable cleaners based on opinion tests conducted during actual cleaning work. It is necessary that there is no nuisance and the odor is so low that it is not bothersome during work.゛In terms of effects on cables, when the polyethylene used for the outer sheath and core wire insulation coating is immersed in a cleaning agent for 17 days at 23°C, the weight increase rate of the polyethylene is 15% or less.
It is necessary that the residual strength at break is maintained at 50% or more.

Furthermore, cleaning agents must be of low toxicity, considering the safety of the working environment.

Carbon numbers CIl to CI7, which are the main components of the mixture of the present invention
n-paraffin satisfies the above-mentioned properties.

Here, although the odor of low molecular weight n-paraffin with a carbon number of 01° or less is much smaller than that of kerosene, it is rather unpleasant during work, and therefore is not desirable as a waterproof cable cleaning agent.

In addition, high molecular weight n-paraffin having a carbon number of C111 or more is also undesirable because its detergency for cleaning the waterproof cable is reduced to the same level or lower than that of kerosene. In addition, due to the addition of aromatic hydrocarbons, the molecular weight is high, and the detergency against solid gelatin is improved by the carbon number CIl~C+
It is further improved than the n-paraffin single component of t.

When using a waterproof cable cleaning agent and considering storage safety, by adding a trace amount of dye and fragrance to a solvent made by adding an aromatic hydrocarbon to n-paraffin with a carbon number of CI1 to CI 7. , the risk of mixing with other organic solvents, water, etc. should be avoided.

The aromatic hydrocarbons added in the present invention include benzene, toluene, xylene, etc., but are not limited to those exemplified here, and any aromatic hydrocarbons that are generally classified as aromatic hydrocarbons may be used. The amount added should be in the range of 1 to 20%. If the amount added is less than 1%, no improvement in detergency will be observed, and 20%
%, the odor is strong and it is not suitable for use in a narrow working environment.

In addition, oil-soluble dyes used in the present invention include C and I in terms of color index names.

Solvent Yellow 2, C, 1, Solvent Yellow 1
4, C, L Solvent Yellow 16, C, 1, Solvent Orange 5, C, 1, Solvent Red 3, C
, 1, Solvent Red 24, c, r, Solvent Red 25, C, l Solvent Red 27, C
,1, Solvent Red 49, c, r, Solvent Blue 11, C,1, Solvent/De Green 3,
C.I.

Examples include Solvent Brown 3, but are not limited to those exemplified here, as long as they are classified as oil-soluble dyes under -i (the amount added is 0.
It should be in the range of 0001 to 1.0% by weight. If the amount of oil-soluble dye added is less than 0.0001% by weight, the coloring will be too light and it will be difficult to distinguish it from water, and if it exceeds 1.0% by weight, the coloring will be too dark and will be difficult for workers to handle. Problems such as contamination may occur.

Furthermore, the fragrances used in the present invention include acetophenone, ethyl benzoate, benzyl benzoate, α-
Ionone, β-ionone, undecylenaldehyde, pulbonal, citronellyl formate, benzyl formate, ethyl cinnamate, methyl cinnamate, isobornyl acetate, geranyl acetate, citronellyl acetate, cetryl acetate, terepenyl acetate, benzyl acetate, bornyl acetate, linanyl acetate , isobenzyl salicylate, methyl salicylate, ethyl salicylate, cyclamenaldehyde, 2-cyclohexylcyclohexanone, geranial, neral, 1-citronellol, diphenyl ether, α-dimethylphenethyl acetate, cinnamaldehyde, thymol, α-
Terpineol (dl), β-terpineol, T-tertepineol, terbinone, naphthyl methyl ketone,
β-Naphthol ethyl ether, β-naphthol methyl ether, Stroxycitronellal, 1-phenylethyl acetate, ethyl phenylacetate-2-phenoxyethanol, 4-t-butylcyclohexanone,
4-t-Butylcyclohexyl acetate, α-hexylcinnamaldehyde, 2-heptanone, heliotropine, benzylideneacetone, benzaldehyde, α-
Penzylcyinamaldehyde, borneol (dl),
Musk en bread, musk pheasant roll, methyl anthranilate, methyl eugenol, α-n-methylionone, β-n-methylionone, α1so-methylionone, β-1so-methylionone, 1-menthol, linalool, lime oil, lavender oil, Lemon oil, rose oil, etc. may be mentioned, but the fragrance is not limited to those exemplified here, and any fragrance that is generally used for soaps and cosmetics may be used, and the amount added is from 0.001 to 0.001.
Should be limited to a range of 10 ppm. If the amount of fragrance added is less than 0.001 ppm, the fragrance will be too weak and will not be effective; if it exceeds 10 ppm, the fragrance will be too strong and may even cause discomfort in a small work environment. Causes adverse effects.

(Example) The present invention will be explained in more detail by giving Examples and Comparative Examples below.

Disaster dish n-undecane 35.0% by weight, n-dodecane 45.0
wt%, n-) IJ Decane 20.0 wt% mixture with 3.0 wt% xylene, oil-soluble dye C,1, 0.02 wt% Solvent Red 24, and perfume benzyl acetate 11) pln These were added and mixed to obtain the cleaning agent of the present invention. The formulation contents in this case are summarized in Table 1 below.

Table 1. The characteristics of this cleaning agent are that it has better cleaning power than kerosene for dirt on waterproof cables, can wash and remove dirt from the container, and does not leave your hands feeling sticky after work. There is no residual odor and there is almost no odor while working. In addition, the coloring from dyes and the scent from perfumes make it distinguishable from other organic solvents, water, etc., ensuring safety during handling and storage. Regarding the effect on the cable covering material, the weight increase rate of polyethylene immersed in this cleaning agent for 17 days at 23°C was 9.7% by weight, and the breaking strength rate was 65%.
So, the impact is not a problem. Furthermore, since the main component is n-paraffin, there is no concern about toxicity.

The characteristics are summarized in Table 2 below.

Table-2 Characteristics of waterproof cable cleaner*23. Changes when immersed for 7 days at O°C Commercial sale ■Hikime n-dodecane 2.0% by weight, n-) lysocan 85.0% by weight, n-tetradecane 12.0% by weight, n-pentadecane 1. 3.0% by weight of xylene in the mixture of K amount%
, oil-soluble dye C,1, solvent blue 11 at 0.01
% Jusei, and 1 ppm of fragrance lemon oil are added and mixed,
A cleaning agent of the present invention was obtained. The formulation contents in this case are summarized in Table 1 above.

The characteristics of this cleaning agent are that it has better cleaning power than kerosene for removing dirt from waterproof cables, and can easily clean and remove dirt.
There is no sticky residue left after work, and there is no odor at all during work. In addition, the coloring from dyes and the scent from perfumes make it distinguishable from other organic solvents, water, etc., ensuring safety during handling and storage. Regarding the influence on the cable covering material, the weight increase rate of polyethylene immersed in this cleaning agent at 23° C. for 7 days was 9.6% by weight, and the breaking strength rate was 67%, so the influence was not a problem. Also, the main component is n-
Since it is paraffin, there is no need to worry about toxicity.

The characteristics are summarized in Table 2 above.

1 application Mainly n-tridecane 0.5% by weight, n-tetradecane 73.
5% by weight, n-pentadecane 22.0% by weight, n-hexadecane 3.0% by weight, n-heptadecane 1.0% by weight
A mixture of xylene 1.0%, oil dyeing nc, 1. 0.01% by weight of Solvent Green 3, and fragrance 2-
0.5 ppm of hebutanone was added and mixed to obtain a cleaning agent of the present invention. The formulation contents in this case are summarized in Table 1 above.

The characteristics of this cleaning agent are that it has better cleaning power than kerosene for dirt on waterproof cables, makes it relatively easy to clean and remove dirt, does not leave sticky residue on hands after work, and does not cause any odor during work. . In addition, the coloring from dyes and dyes and the scent from perfumes make it distinguishable from other organic solvents, water, etc., ensuring safety during handling and storage. Regarding the effect on the cable sheathing material, the weight increase rate of polyethylene immersed in this cleaning agent for 17 days at 23°C was 9.3%.
The residual strength at break was 72%, and the influence was not a problem. Furthermore, since the main component is n-paraffin, there is no concern about toxicity.

The characteristics are summarized in Table 2 above.

Commercially available kerosene was used directly as a waterproof cable cleaning agent.

The cleaning power of the waterproof cable against the jelly is somewhat inferior, and it takes time and effort to completely remove the jelly.

Your hands will feel sticky even after working. During work, the oil tools are strong and cause discomfort to the worker. It also has a relatively low flash point and requires special attention in terms of fire prevention. Regarding the effect on the cable covering material, the weight increase rate of polyethylene immersed in kerosene for 17 days at 23°C was 12.1% by weight, and the residual breaking strength was 68%, so the effect is almost not a problem, and toxicity is also a concern. There isn't.

The formulation contents are summarized in Table 1 above, and the characteristics are summarized in Table 2 above.

(Effects of the Invention) As is clear from the above description, the mixture of the present invention has excellent cleaning power for removing jelly from waterproof cables, can easily remove jelly, and has almost no effect on polyethylene, which is the waterproof cable covering material. It does not cause unpleasant odors during work, does not leave sticky or irritated hands after work, is non-toxic, and has a very small amount of scent and coloring, so it can be used in combination with other organic solvents, water, etc. Therefore, it is highly safe during handling and storage, so it has many advantages in construction and health and safety as a waterproof cable cleaning agent, and its application effects are large.

Claims (1)

[Claims] 1. Add 1 to 20% by weight of an aromatic hydrocarbon to n-paraffin having a carbon number of C_1_1 to C_1_7, add 0.0001 to 1.0% by weight of an oil-soluble dye, and further add 0.001 to 10 ppm of fragrance. A waterproof cable cleaning agent characterized by comprising a mixture of these substances added to the same concentration.