JPH03254792A - Washing method - Google Patents

Abstract

PURPOSE:To perform washing while gradually solving or dispersing an effective component in water used for feed to a washing system by containing the effective material in a gelled or pasted sticky material and depositing a suitable amount thereof on the inner wall surface of the washing system. CONSTITUTION:By using a gelled composite of hydroxyethyl cellulose, stearyl trimethyl methoxysulphate and water, it is possible to easily feed a washing system with an effective component such as a dispersant, a chlorine neutralizer, a die, a perfume and a surface active agent without any use of a dispenser having special distribution performance. The yellowing or the like of clothes is thereby prevented. In using a cationic surface active agent as the effective component, the aforesaid composite may be used in the processes of washing and rinsing for flexibility in application and facilitating a rinsing effect in washing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning method, and more particularly to a cleaning method that can solve problems in cleaning clothes or hard surfaces.

[Conventional technology and its problems]

Conventionally, the process of washing clothes is ``washing → softener → rinsing'' or, if a fabric softener is not used, ``washing → rinsing''. Furthermore, repeated washing may cause clothing, especially white clothing, to turn yellow. This is a phenomenon that mainly depends on the rinsing process during washing. In other words, there is no problem under conditions where there are many active agents and detergent ingredients that have the effect of dispersing dirt, but as you rinse, the concentration of these ingredients decreases or disappears, and the trace amount of iron contained in tap water becomes It adheres to clothing and causes white clothing to turn yellow. Therefore, in order to prevent this, a component with a dispersing effect may be added as a rinsing agent.

Large-scale cleaning systems, such as industrial or commercial cleaning systems, often include a rinsing process in which a rinsing agent is added. However, when doing small-scale laundry at home, it is troublesome to add rinsing agents, so there are few cases where special efforts are made.

Therefore, there is a need for a cleaning method that can easily apply active ingredients such as rinsing agents when doing small-scale laundry at home.

[Means to solve the problem]

In view of the above-mentioned current situation, the present inventors conducted extensive research and found a method of extremely easily adding an active ingredient such as a rinsing agent during the rinsing process, thereby completing the present invention.

In other words, the present invention provides a water-soluble or water-dispersible pasty or gel-like substance that contains an active ingredient and exhibits stickiness, which does not come into contact with water at all times in a cleaning system, but can come into contact with water used during cleaning. The object of the present invention is to provide a cleaning method characterized in that the substance is adhered to the surface of a solid, and the water used gradually dissolves or disperses the substance, and performs cleaning while supplying the substance to a cleaning system.

The cleaning method of the present invention not only prevents iron from adhering to clothing, but can also be applied to solve other problems caused by rinsing.

For example, 1) Improving the efficiency of rinsing (removal of foam) when washing clothes → rinsing; 2) Eliminating chlorine problems when washing clothes → rinsing. In addition, the method invented for cars can be applied not only to rinsing laundry, but also to drainage and cleaning systems as described below.

3) Auto-cleaner for flushing toilets 4) Continuous disinfection and deodorization of drain pipes and sewage channels In the present invention, "a pasty or gel-like substance that is water-soluble or water-dispersible and exhibits stickiness" refers to A substance that dissolves or disperses little by little when attached to the wall of a machine and water flows through that area.Water-soluble polymer compounds are most suitable as such substances, and in some cases, water-based Polymer compounds that exhibit water dispersibility may be used. Examples of such polymer compounds include cellulose derivatives such as carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose, partially or completely hydrolyzed polyvinyl alcohol, polyacrylic Examples include acid salts, polymethacrylates, polyvinylpyrrolidone, and the like.

In addition, conventionally known paste or gel products include paste or gel detergents, but since these are mainly based on surfactants, they have good dispersibility in water. However, it does not have strong adhesion to solid surfaces and does not suggest the cleaning method of the present invention.

There are also toothpastes and the like, but these are of course irrelevant to the purpose of the present invention. Furthermore, gel-like fragrances and the like are intended to gel a large amount of fragrance, and do not have adhesion to solid surfaces, and this case is also irrelevant to the cleaning method of the present invention.

In the present invention, the active ingredients contained in the water-soluble or water-dispersible adhesive pasty or gel substance include agents that prevent tap water from harming the cleaning system, such as dispersants, chlorine neutralizers, Dyes, fragrances, surfactants, and other agents that exhibit effects are used.

Dispersants include polyethylene glycol, cellulose derivatives such as carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose, partially or completely hydrolyzed polyvinyl alcohol,
Polymer compounds such as polyacrylates, polymethacrylates, and polyvinylpyrrolidone, anionic or nonionic surfactants are preferred, and condensed phosphates can also be used in some cases. Among these, when cellulose derivatives such as carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose are used, and polymer compounds such as partially or fully hydrolyzed polyvinyl alcohol, polyacrylates, polymethacrylates, and polyvinylpyrrolidone are used. The two ingredients are ``a pasty or gel-like substance that is water-soluble or water-dispersible and has adhesive properties'' and ``
It can act as both an active ingredient and an active ingredient.

Examples of the chlorine neutralizer include reducing agents such as thiourea dioxide, sodium sulfite, sodium thiosulfate, or potassium, ammonium, or substituted ammonium salts thereof, and nitrogen compounds such as urea and melamine.

When a cationic surfactant is used as an active ingredient, it can be used in the washing and rinsing steps of clothing to impart a softening effect and to promote rinsing (de-foaming).

When hydroxysulfohetaine or the like is used as an active ingredient in a solid surface system such as a toilet, the effect of inhibiting the adhesion of dirt to the surface is exhibited.

In the cleaning method of the present invention, an active ingredient is contained in a sticky substance such as a polymer compound in the form of a gel or paste, and this is filled into a flexible tube or bottle, and an appropriate amount of the substance is poured out before use. This is done by depositing it on a solid surface within the cleaning system, for example on the inside wall of a washing machine. At this time, the place where it is attached is not particularly limited, but for example, when it is attached to the inner wall surface of a washing machine, it is preferably a place where it will not be scraped off by the laundry in the washing tub. Also,
When used in a flush toilet, it is preferable to attach it to the wall of the aquarium tank or near the outlet where water flows out inside the toilet bowl.

The gel-like or paste-like substance used in the present invention may be difficult to adhere to surfaces to which water has already adhered, or may easily fall off even if it adheres.

In such cases, in carrying out the present invention, the material may be applied to a dry (not wet with water) solid surface;
Alternatively, if the surface is already wet, it is preferable to wipe the water off before applying.

In another embodiment of the invention, the gel-like or pasty substance containing the active ingredient is pre-deposited on a dry solid surface that is installed separately from the pre-existing solid surface in the directly targeted cleaning system. It may be supplied in the form. In this case, rather than using a dispenser with a typical complicated design, the dispenser may be attached to a simple flat plate, or placed in a large open container, non-sealable non-woven or textile bag, etc., and placed inside the cleaning system. It is preferable to attach it to

〔Effect of the invention〕

According to the cleaning method of the present invention, dispersants, chlorine neutralizers,
Active ingredients such as dyes, fragrances, surfactants, etc. can be supplied to the cleaning system, and yellowing of clothing can be prevented.

〔Example〕

Example 1 I Possession Prevention Prisoner/Carboxymethylcellulose 5%/Water
Gel above balance (^)
The following tests were conducted using

A piece of cotton stockinette underwear was placed in a washing machine (Raijima Ginga 3.OVH-3050 model) and rinsed for 2 hours. At this time, fill the initial rinse tank with tap water, add 30 ■ ferrous chloride (FeC1□) as the amount of iron, and rinse for 15 minutes with running tap water on the "Strong" scale → Ferrous chloride (FeC1z) was added again in an iron amount of 30 cm, and the process of rinsing for 15 minutes on the "Strong" scale while running tap water was repeated 8 times.

Approximately 5 g of gel (A) is placed in the upper part of the washing tub in the washing machine (it does not come into contact with the rinsing water when the washing machine is not rotating, but
The degree of yellowing of the treated clothing was measured using a colorimeter (fluorescence colorimeter: Model manufactured by Nippon Denki Kogyo), with and without adhesion on the parts that come into sufficient contact with water by rotating the "Strong" scale.
100DP type) and expressed as L, a, and bOb values (indices indicating yellowing).

Indigo - Achieving Value Original Cloth O0O Gel (A) Added System 0.5 Gel (A) Not Added System 3.2 This is an obvious difference to the naked eye, and yellowing is almost prevented by the cleaning method of the present invention. Ru.

Example also. In this case as well, the effect of dispersing dirt was significantly better than in the case where no dirt was attached.

・Water balance gel (
For B), after washing with Attank (manufactured by Kao ■, household detergent), about 0.5 g was deposited on the top of the washing tub in the washing machine in accordance with Example 1 during rinsing. Rinseability is gel (B)
When it was attached, it was significantly better than when it was not attached.

Example 3 ``Ino'' Koenboku Hydroxypropyl cellulose 3% (rEFPJ manufactured by Shin-Etsu Chemical)

Claims (1)

[Scope of Claims] 1 A water-soluble or water-dispersible pasty or gel-like substance that contains an active ingredient and exhibits stickiness, which does not come into contact with water at all times in a cleaning system, but does come into contact with water used during cleaning. A cleaning method characterized in that the substance is adhered to a solid surface where the substance can be washed, and the water used gradually dissolves or disperses the substance and supplies the substance to a cleaning system while cleaning is carried out. 2. The cleaning method according to claim 1, wherein the pasty or gel-like substance exhibiting water-soluble or water-dispersible adhesiveness is a water-soluble or water-dispersible polymer compound.