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United States Patent  [ii] Patent Number: 4,613,447
Hara et al.  Date of Patent: Sep. 23, 1986
 COMPOSITION FOR CLEANSING AND WIPING THE CIRCUMANAL REGION
 Inventors: Kenji Hara, Ichikaimachi; Yasuteru Eguchi, Utsunomiya, both of Japan
 Assignee: KAO Corporation, Tokyo, Japan
 Appl. No.: 615,759
 Filed: May 31, 1984
 Foreign Application Priority Data
Jun. 7, 1983 [JP] Japan 58-101336
 Int. CI.4 CUD 17/00
 U.S. CI 252/91; 252/89.1;
 Field of Search 252/174.15, 91, 89.1;
106/8, 9; 15/209 C, 229 R
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3,072,952 1/1963 Cox 15/209 C
3,177,055 4/1965 Ruckle et al 15/209 C
3,284,963 11/1966 Lanham et al 15/209 C
4,370,319 1/1983 Chapin et al 424/184
4,382,960 5/1983 Flom .• 514/77
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0007120 1/1980 European Pat. Off. .
0037011 10/1981 European Pat. Off. .
714795 9/1954 United Kingdom .
803545 10/1958 United Kingdom .
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1604853 12/1981 United Kingdom .
Derwent Abstract, Accession No. 82-55615E/27, Japa-
nese Pat. No. J57002215-A, Jan. 7, 1982.
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Pat. No. J5 2064-415, Jul. 27, 1977.
Seifen-Ole-Fette-Wachse, vol. 108, No. 14, Sep. 1982,
Augsburg, (Germany) p. 428, column on the left, under
Chem. Abst., vol. 79, 1973, pp. 316-317, abstract No. 96850g, Columbus, Ohio, US; & JP-A-73 33 039 (Nippon Chemical Co., Ltd.) May 7, 1973.
Primary Examiner—Amelia B. Yarbrough
Attorney, Agent, or Firm—Obion, Fisher, Spivak,
McClelland & Maier
A composition of cleansing and wiping skin in the circumanal region which comprises at least one oil selected from the group consisting of vegetable oils, animal oils and synthetic oils, and a silicone oil and has a viscosity of not more than 30 cs as measured at 5°0 C. The composition according to the invention is preferably used after excrement is wiped off with usual toilet paper and facilitates removal of excrement residues on the skin of circumanal region. Besides, when the composition is applied to the circumanal skin prior to defecation, it prevents excrement from sticking to the skin or makes excrement easy to be wiped off.
The composition may be sprayed on conventional toilet paper or impregnated into nonwoven fabric, cloth, paper etc. on application.
Such materials containing the composition according to the invention is effective in preventing any aggravation to hemorrhoids or the like.
6 Claims, 2 Drawing Figures
U.S. Patent Sep. 23,1986 Sheet 1 of2 4,613,447
U.S. Patent Sep. 23,1986 Sheet 2 of2 4,613,447
COMPOSITION FOR CLEANSING AND WIPING THE CIRCUMANAL REGION
BACKGROUND OF THE INVENTION
(i) Field of the Invention
This invention relates to a composition for cleansing and wiping the circumanal region which makes it easy to remove that portion of excrement residues which remains in the circumanal region after wiping off the excrement with a conventional toilet paper or the like following defecation and which, when applied to the skin in the circumanal region prior to defecation, makes it difficult for the excrement to stick to the skin during the subsequent defecation or makes it easy to wipe off the excrement from the skin and thereby keeps the circumanal region clean and prevents aggravation of symptoms found in the circumanal region, such as hemorrhoids, eruption and itching.
(ii) Description of the Prior Art
For the wiping and cleansing treatment of the anus following defecation, toilet paper is generally used. Bidets and other washing apparatus using warm water, and cleansing cotton are also used, but rarely. From the viewpoint of skin irritation or filth removal, washing with warm water is the most desirable. However, washing apparatus using warm water are expensive and require cumbersome handling, and therefore have not come into wide use yet. Cleansing cotton each time costs much, feels cold and is disadvantageous in that it cannot be disposed in a flush toilet. For these reasons, the actual situation is that toilet paper and coarse toilet paper are most generally used in wiping the anus after defecation.
The skin in the circumanal region has small wrinkles and creases and hair, and those portions of excrement residues which have got into such minute parts can be wiped off only with difficulty. Furthermore, sticking excrement residues, after solidification, are difficult to remove.
On the other hand, regeneration products account for about 70% of toilet paper and coarse toilet paper which are generally used. Physically, they are rather tough and therefore crumpled soft prior to use, but even they may injure the skin, causing excoriation. Excrement residues sticking to the skin parovide sources of propagation of bacteria, and decomposition products and the like produced by bacteria promote aggravation of the injured skin or cause itching, eruption or sore of the circumanal region. To clean the circumanal region is very important also to general public from the public health standpoint. In particular, to babies having a delicate skin and bedridden old people or to those suffering from diseases of the anus, such as hemorrhoids, that is important. Such people having some or other skin lesions in the circumanal region are sensitive to stimuli to the skin in the circumanal region and easily feel a pain upon stimulation in said region. Consequently, they tend to reduce the wiping force, and the results are insufficient wiping and increase in excrement residues.
Some of those with hemorrhoids, for instance those with internal hemorrhoids or anal prolapse, must force the internal hemorrhoids or rectal part, which had come out of the anus, back into the anus after defecation so that pains due to friction between the underwear and affected part can be removed. In this case, they cannot but manage to effect the insertion with fingers while
bearing the pain. A device which physically makes the insertion easy is desired.
SUMMARY OF THE INVENTION
Under these circumstances, the present inventors conducted intensive study so as to develop a composition for cleansing and wiping the circumanal region which might be used after defecation in a simple and easy manner, might remove, to a sufficient extent, excrement residues remaining after wiping with toilet paper, might keep the circumanal region clean and might prevent aggravation of various symptoms of the circumanal region, such as hemorrhoids, eruption and itching. As a result, they found that the above object can be accomplished by using a composition which comprises an oil and a silicone oil and has a specific viscosity. This finding has led to completion of the present invention.
Thus, the invention provides a composition of cleansing and wiping the circumanal region which comprises at least one oil selected from the group consisting of vegetable oils, animal oils and synthetic oils, and a silicone oil and has a viscosity of not more than 30 cs as measured at 5° C.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a graphic representation of the change in residual feces amount in the circumanal region with the number of wipings, and
FIG. 2 is a graphic representation of the change in residual feces amount on the skin on the inner side of forearm with the number of wipings.
DETAILED DESCRIPTION OF THE
INVENTION AND PREFERRED
The vegetable oils, animal oils and synthetic oils to be used in the practice of the invention include such vegetable oils as olive oil, almond oil, jojoba oil, peanut oil, castor oil, coconut oil, palm oil, sunflower oil, cottonseed oil, hardened coconut oil and hardened palm oil, such animal oils as lanolin, turtle oil, beeswax, squalene, squalane and pristane, and such synthetic oils as liquid paraffin and fatty acid triglycerides (e.g. glycerol tri-2ethylhexanoate). Among them especially preferred are jojoba oil, squalane and glycerol tri-2-ethylhexanoate.
Among the above oils, liquid paraffin, olive oil and lanolin have been used generally in preparing baby oils and oils for cosmetic use. When they are applied alone to the circumanal region, sticking feeling unfavorably remains. However, the combined use of a silicone oil in accordance with the invention results in loss of such sticky feeling and furthermore in synergistic addition of smoothness and refreshingness. The composition according to the invention is thus very favorable from the practical standpoint.
The silicone oil to be used in accordance with the invention is preferably a straight-chain dimethylsilicone or cyclic dimethylsilicone having a viscosity of not more than 30 cs as measured at 5° C.
The oils to be used in accordance with the invention may be used either alone or in combination of two or more. The silicone oil is preferably incorporated in an amount such that the whole composition may have a viscosity of not more than 30 cs as measured at 5° C. Thus, it is preferably added in an amount of 10 to 80% by weight (hereinafter, simply in %) based on the whole composition.