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US2542909A - Sanitary napkin - Google Patents

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US2542909A
US2542909A US111953A US11195349A US2542909A US 2542909 A US2542909 A US 2542909A US 111953 A US111953 A US 111953A US 11195349 A US11195349 A US 11195349A US 2542909 A US2542909 A US 2542909A
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zinc peroxide
napkin
quaternary ammonium
deodorant
milligrams
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US111953A
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Wet Charl Louis Roux De
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International Cellucotton Products Co
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International Cellucotton Products Co
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/02—Amines; Quaternary ammonium compounds
    • A01N33/12—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria

Definitions

  • the present invention relates to catamenial bandages or sanitary napkins and is of particu- ⁇ lar value for mitigating odors produced by the body excretions absorbed by such bandages, whether such odors are initially present in the secretions or are subsequently develo-ped.
  • the liberation of oxygen may be of considerable value in removing odors and in preventing odors from developing
  • the e'iciency i. e. the percentage of cases where the development of odors is prevented or mitigated, may be greatly increased by the addition to a napkin of one or more Quaternary ammonium compounds in combination with a relatively small amount of zinc peroxide.
  • the Quaternary ammonium compounds have many important properties which enhance their effectiveness in a sanitary napkin, e. g. they are colorless and odorless, and in the concentrations employed are non-toxic and non-irritating.
  • Quaternary compounds serve to soften the fibers of the napkin and are not readily leached away from the zone in which they are needed during use.
  • Certain of the Quaternary ammonium compounds by themselves may be employed in combination with a cellulosic carrier to eiect deodorization of liquid body excretions as described in my co-pending application Serial No. 105,901 which was filed on July 20, 1949.
  • Quaternary ammonium compounds which have been successfully used in combination with zinc peroxide and by the use of which extremely high deodorizing efliciency is obtained are the following: l
  • n is at least 2;
  • a sanitary napkin or catamenial bandage should, for proper deodorization, have incorporated therein at least l5 mg. (milligrams) of commercial zinc peroxide (50 per cent active zinc peroxide and 50 per cent zinc oxide) and from 1.5 to 30 mg. of the Quaternary ammonium compound.
  • This material desirably should be incorporated into an active portion of the napkin, i. e. a portion of the napkin through which the excretion will pass.
  • Extensive tests have shown that a napkin, for example, containing 20 mg. commercial Zincperoxide and 6 mg.
  • a quaternary ammonium compound (0.026 gram of the mixture) is as effective in mitigating odors-asrfrom aboutn Ito grams of commercial., zinc peroxide alone' ⁇
  • my improved deodorant is from about 40 to 200 timesl as eiective as zinc peroxide.
  • a sam'.- tary napkin which contains my improvedY composition completely deodorizesthe exudateand there are no new odors formed in the..sanitary ⁇ napkin as a result of the deodorization ⁇ of the excretions.
  • the napkin is odor.- less before, during, and after use;
  • the preferred proportions of zinc peroxide and, the quaternary ammonium compound per napkin arefromabout 20,-40A mg; of. commercial. zinc per- Y oxide and tofrom about. 6 to ⁇ 15mg. of. the quae' ternary' ammoniumv compounds, All ⁇ of! the*Y quae ternaryM ammoniumv compoundsV will produce a marked deodor-izing eiectwhen ⁇ combinedwith.
  • Zinc peroxide, however, those.- compoundslwhich havebeen set forth above have produced extreme- 1yj eiective -deodorization efliciencies.
  • Fig. l isi ai diagrammatic viewY showing the equipment andf process usedffor producing ade.-l odorizing stripr for. ⁇ incorporation in a sanitary, napkin; andconstructed in accordance with my invention;
  • Fig. 2i is: ax. perspective view Lshowing a. catame-, nial bandage equipped-with one of my improved deodorizing strips.
  • a supply rolll Iof suit'- able permeablemateriali. is shown in positionv to be impregnatediwith-a deodorant compositionin accordance withA the invention.
  • the sheet employed.- has ai dryer-basis weight of about 8-1bs-. tothe-ream of 3,000squarev feet; Wit-hfa ⁇ creping; ratio of between 11.5fand2.0, althoughilighter. or heavier sheets ⁇ with diierent ratios ofi-creping; may bev employed, Yif needed, t'ofsuitother conditions;
  • the ⁇ web. of untreated creped ⁇ waddingi passes over idler rolls I2 and I3 to the nip oi-fa pair of coating: rolls.. comprising an applicator roll
  • The: applicator roll I4 is positioned so its lower surface is wettedby. theliquid I5 containedin a. suitable trough. I .1.
  • the Vliquid is rapidly circulated through the trough I'I'by means of a pump, ISand suitable pipingy connections ⁇ I9- and 20.
  • Said liquid I6 comprises a liquid dispersionrof a suitable adhesive andcontainsirr suspension or: solution the active ingredients of thedeodorizing materiali
  • the adhesive is a water dispersion of Io'oiledorY gelatinizedn starch but ⁇ other adhesives be used; AV relatively small. amount. oi ad-A hesive, is required.. Good results have beenobf. tained. by using. a good. grade. of, cooked,VV soluble. starch. inoan. amount. representing7 about 5%. ot
  • bor-ic acid insteadof bor-ic acid,.Imay use other. wealracids,l such as citric. or tartaric, such acidic salts, as mono-ammonium phosphate; ammoniumVV sulphate or zinc sulphatevor. salts such-A as ammonium; di-basic phosphate which ⁇ becomes acidic upon heating. According to mypresentl information, it is not advisable to userelatively stronger orfmore reactive acids-which, whenincorporated with-theother ingredients, appear tof produce premature orfundesirable reactions.
  • the clay actsY as anadsorbent;
  • the purposey oftheother ingredients has already been de scribed.
  • the adhesive, cla-y,xan df Weak acid may be omitted..
  • Suioient' pressure is applied to the rubber faced applicator roll' I4, and the consistency or;v Vamount of.- water in theliquid dispersion is suitably adjusted; so-that the proper'amountv of ma.- terial is applied tothe web II when, it passes' -Y throughthe nip ofY the. coating rolls. I4 and I5.
  • slurry may-corr.
  • the strip When the strip is to be used for deodorizing sanitary napkins of the usual construction, it will preferably have been cut to a width slightly less than the width of the fibrous, absorbent, liquid permeable element of the sanitary napkin, and such strip is made up in lengths long enough to cover an area equal to the zone of contact between the napkin and the person of the wearer.
  • a strip may conveniently be about 5 inches long and slightly less than 3 inches wide. If a single strip is to be employed in a sanitary napkin, the operation is adjusted so that the strip will contain say 20 mg. of commercial zinc peroxide and 6 mg. of di-isobutyl-cresoxy ethoxy dimethyl benzyl ammonium chloride.
  • the deodorizing strip 29 is incorporated to the absorbent element 30 of the napkin which is equipped with the usual gauze wrapper 3
  • Said strip may be employed on either side of the element 30, as shown at 29 or 29', or it may be incorporated in the center of the pad as shown at 29".
  • the deodorizing effect in the napkin is equivalent to the deodorizing effect obtained when about 21/2 grams of commercial zinc peroxide is incorporated in a napkin.
  • the deodorizing composition in accordance with the specific example is 100 times as effective as an equivalent weight of zinc peroxide.
  • the element containing the combination of the zinc peroxide and the quaternary ammonium compound is soft and pliable and has substantially all of its original absorptivity.
  • the slurry employed in applying the mixture of zinc peroxide and quaternary ammonium compound to the deodorizing strip has been found to be stable in water so that there is little danger that the activity of the mixture will be reduced by circulating the slurry through the 6 about 1.5 to 30.0 milligrams of a quaternary ammonium compound and over about 15 milligrams of commercial zinc peroxide.
  • a sanitary napkin which includes a brous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 1.5 to 30.0 milligrams of a quaternary ammonium compound and from about 20 to 40 milligrams of commercial zinc peroxide.
  • a sanitary napkin which includes a brous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 6 to 15 milligrams of a quaternary ammonium compound and from about 20 to 40 milligrams of commercial zinc peroxide.
  • a sanitary napkin which includes a fibrous, liquid permeable, absorbent element and a deodorant distributed through the active portion thereof, the said deodorant comprising from 1.5 to 30.0 milligrams of di-isobutyl cresoxy ethoxy ethyl dimethyl benzyl ammonium chloride and from about 20 to 40 milligrams of commercial zinc peroxide.
  • a sanitary napkin which includes a brous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 1.5 to 30.0 milligrams of di-isobutyl phenoxy ethoxy ethyl dimethyl benzyl ammonium chloride and from about 20 to 40 milligrams of commercial zinc peroxide.
  • a sanitary napkin which includes a fibrous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 1.5 to 30.0 milligrams of alkyl dimethyl benzyl ammonium chloride, said alkyl group containing from 8 to 18 carbon atoms and from about 20 to 40 milligrams of commercial zinc peroxide.

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Description

Feb. 20, 1951 c. L. R. DE WET 2,542,909
SANITARY NAPKIN Filed Aug. 23, 1949 SL/ 7 TER D@ YEQS ggf Patented Feb. 20, 1951 UNITED STATES PATENT OFFICE SANITARY NAPKIN Charl Louis Roux de Wet, Neenah, Wis., assignor to International Cellucotton Products Company, Chicago, Ill., a corporation of Delaware Application August 23, 1949, Serial No. 111,953
6 Claims. l
The present invention relates to catamenial bandages or sanitary napkins and is of particu- `lar value for mitigating odors produced by the body excretions absorbed by such bandages, whether such odors are initially present in the secretions or are subsequently develo-ped.
Various attempts have been made to mitigate the odors which sometimes develop incident to the use of catamenial bandages. Reference may be had to the prior U. S. patents to Cline, No. 2,024,145, issued December 17, 1935, and to Williams, No. 2,067,961, issued January 19, 1937. Also, various types of deodorizing agents have been employed for the purpose indicated, for example, metallic peroxides such as zinc peroxide, the use of which is suggested in the patent to Melton, No. 2,144,632. However, the efficiency oi such known methods and materials has not been entirely satisfactory in certain cases.
One of the most effective of the known methods of deodorizing sanitary napkins includes the incorporation of zinc peroxide into the napkin. The deodorizing effect of zinc peroxide appears to be due, in part, to the liberation of oxygen by reason of the chemical reaction which takes place between the zinc peroxide and the liquid body excretion. Notwithstanding the widespread use of zinc peroxide as a deodorant for the purpose, its use under certain conditions causes the development of an odor which is different than the original odor of the exudate but which is bjectionable to some persons. Furthermore, relatively large amounts of zinc peroxide are required to produce a noticeable reduction in odor, and the inclusion of large amounts of the zinc peroxide, a substantially insoluble compound, reduces the absorptivity of the pad and thereby impairs its efficiency.
I have found that, although the liberation of oxygen may be of considerable value in removing odors and in preventing odors from developing, the e'iciency, i. e. the percentage of cases where the development of odors is prevented or mitigated, may be greatly increased by the addition to a napkin of one or more Quaternary ammonium compounds in combination with a relatively small amount of zinc peroxide. The Quaternary ammonium compounds have many important properties which enhance their effectiveness in a sanitary napkin, e. g. they are colorless and odorless, and in the concentrations employed are non-toxic and non-irritating. Moreover, these Quaternary compounds serve to soften the fibers of the napkin and are not readily leached away from the zone in which they are needed during use. Certain of the Quaternary ammonium compounds by themselves may be employed in combination with a cellulosic carrier to eiect deodorization of liquid body excretions as described in my co-pending application Serial No. 105,901 which was filed on July 20, 1949.
In the event that certain of the Quaternary ammonium compounds are employed by them selves in mitigating odors from body excretions, there is a reactio-n between the odorless Quaternary ammonium compound and the body excretion which produces, under some conditions, an aromatic odor which has been found objectionable by some persons. When the zinc peroxide and the Quaternary ammonium compound are introduced into the napkin together, the oombined action of the two materials is effective to eliminate substantially all traces of odor, and this deodorizing action is effective over a prolonged period of time.
Among the Quaternary ammonium compounds which have been successfully used in combination with zinc peroxide and by the use of which extremely high deodorizing efliciency is obtained are the following: l
where n is at least 2;
4. Di-isobutyl phenoxy-ethoxy-ethyl di-methyl benzyl ammonium chloride, which compound may be prepared in a manner similar to that set forth in connection with compound 2 above;
5. Lauryl pyridinium chloride.
My investigations have shown that a sanitary napkin or catamenial bandage should, for proper deodorization, have incorporated therein at least l5 mg. (milligrams) of commercial zinc peroxide (50 per cent active zinc peroxide and 50 per cent zinc oxide) and from 1.5 to 30 mg. of the Quaternary ammonium compound. This material desirably should be incorporated into an active portion of the napkin, i. e. a portion of the napkin through which the excretion will pass. Extensive tests have shown that a napkin, for example, containing 20 mg. commercial Zincperoxide and 6 mg. of a quaternary ammonium compound (0.026 gram of the mixture) is as effective in mitigating odors-asrfrom aboutn Ito grams of commercial., zinc peroxide alone'` Thus; it will be seen that on a comparative weight basis, my improved deodorant is from about 40 to 200 timesl as eiective as zinc peroxide. Further, a sam'.- tary napkin which contains my improvedY composition completely deodorizesthe exudateand there are no new odors formed in the..sanitary` napkin as a result of the deodorization` of the excretions. In other words, the napkinis odor.- less before, during, and after use;
The preferred proportions of zinc peroxide and, the quaternary ammonium compound per napkin arefromabout 20,-40A mg; of. commercial. zinc per- Y oxide and tofrom about. 6 to` 15mg. of. the quae' ternary' ammoniumv compounds, All` of! the*Y quae ternaryM ammoniumv compoundsV will produce a marked deodor-izing eiectwhen` combinedwith. Zinc peroxide, however, those.- compoundslwhich havebeen set forth above have produced extreme- 1yj eiective -deodorization efliciencies.
Specificy Example,
InY the drawingY accompanying this application,
Fig. l isi ai diagrammatic viewY showing the equipment andf process usedffor producing ade.-l odorizing stripr for.` incorporation in a sanitary, napkin; andconstructed in accordance with my invention; and
Fig. 2i is: ax. perspective view Lshowing a. catame-, nial bandage equipped-with one of my improved deodorizing strips.
In the drawing, Fig. l, a supply rolll Iof suit'- able permeablemateriali. is shown in positionv to be impregnatediwith-a deodorant compositionin accordance withA the invention. In the present instanceth'e permeable materiali's paper'lwadding or tissue of a type similar to that" which isusedv for. facial tissuesfor` for the; plies of absorbentY Wadding. The sheet employed.- has ai dryer-basis weight of about 8-1bs-. tothe-ream of 3,000squarev feet; Wit-hfa` creping; ratio of between 11.5fand2.0, althoughilighter. or heavier sheets` with diierent ratios ofi-creping; may bev employed, Yif needed, t'ofsuitother conditions;
The` web. of untreated creped` waddingi passes over idler rolls I2 and I3 to the nip oi-fa pair of coating: rolls.. comprising an applicator roll |43. preferablyV provided" with, a soft rubber exterior, and a drying and creping roll I5". The: applicator roll I4 is positioned so its lower surface is wettedby. theliquid I5 containedin a. suitable trough. I .1. The Vliquid is rapidly circulated through the trough I'I'by means of a pump, ISand suitable pipingy connections` I9- and 20. Ther supply,y of; treatngfliquid: I5. in the troughV I'I ist-maintained by: feeding; into the troughadditional liquid throughaliquidasupplylline2,I-.
Said liquid I6 comprises a liquid dispersionrof a suitable adhesive andcontainsirr suspension or: solution the active ingredients of thedeodorizing materiali The adhesive is a water dispersion of Io'oiledorY gelatinizedn starch but` other adhesives be used; AV relatively small. amount. oi ad-A hesive, is required.. Good results have beenobf. tained. by using. a good. grade. of, cooked,VV soluble. starch. inoan. amount. representing7 about 5%. ot
4 the dry Weight of the total solids used in the formula.
To insure a proper dispersion or suspension it may be advisable to use a small percentage of a dispersing agent. In such cases, I have successfully used .4% (based upon the dry weight of the total solids) of sodium hexametaphosphate. typica'lgformula for the V-slurry` Ywhich .contains the deodorizing. substances isY the following;
Commercial Zinc peroxide (containing of the pure chemical and 50% of zinc Thus,itmay be seen that the. slurry contains, Y
onthe dry basis, ahou't25 per cent-ot; commercial zinc peroxide, about Bfper Cent-of boric acid; and about 8 perv centof the-.pure Quaternary ammonium compound. This means that. inV the slurry there. are about` 25 partsbyweightfof commer cial zinc peroxidetoabout S'partsby weight of.Y boric acid andA about 8 parts by weight ofthe pure, quaternary ammonium. compound.
rIihe use of boricvacid'appearsto be ofradvan'- tage;r inincreasing the acidity of; the body eX- cretion. to afpHotaboutd to 7.5; reduces theetendency of.v theexcretiontol irritate the skin. Insteadof bor-ic acid,.Imay use other. wealracids,l such as citric. or tartaric, such acidic salts, as mono-ammonium phosphate; ammoniumVV sulphate or zinc sulphatevor. salts such-A as ammonium; di-basic phosphate which` becomes acidic upon heating. According to mypresentl information, it is not advisable to userelatively stronger orfmore reactive acids-which, whenincorporated with-theother ingredients, appear tof produce premature orfundesirable reactions.
The clay actsY as anadsorbent; The purposey oftheother ingredients has already been de scribed. Insomey cases, the adhesive, cla-y,xan df Weak acidmay be omitted..
Suioient': pressure is applied to the rubber faced applicator roll' I4, and the consistency or;v Vamount of.- water in theliquid dispersion is suitably adjusted; so-that the proper'amountv of ma.- terial is applied tothe web II when, it passes' -Y throughthe nip ofY the. coating rolls. I4 and I5.
For the purpose indicated1tlie; slurry may-corr.,
venientlyfhave a consistency; ofabout. 25- per cent,
centage of the water of thedispersion. Enough` water is driven oil to-bring thesheet into proper condition.v of. dryness toy bel removed and- Creped: by the` usualcreping doctor 22; From thecrep-A ing4 doctor 22,` the treatedsheet passesk under an idler 11011.23. and around a set. of. driers, for examplethreedriers 2&25 and 26, whichA complete, thedrying of the sheet tov a moisture content of normal paper dryness, i. e. containing about 5% of. moisture. If the sheetisof substantial` width,k itmay thenbe slit into .strips of the proper width by, means.` of. a slitting mechanism4 indicated. at
21 from which it passes to a re-winding arrangement indicated generally at 28.
When the strip is to be used for deodorizing sanitary napkins of the usual construction, it will preferably have been cut to a width slightly less than the width of the fibrous, absorbent, liquid permeable element of the sanitary napkin, and such strip is made up in lengths long enough to cover an area equal to the zone of contact between the napkin and the person of the wearer.
For example, a strip may conveniently be about 5 inches long and slightly less than 3 inches wide. If a single strip is to be employed in a sanitary napkin, the operation is adjusted so that the strip will contain say 20 mg. of commercial zinc peroxide and 6 mg. of di-isobutyl-cresoxy ethoxy dimethyl benzyl ammonium chloride.
The deodorizing strip 29 is incorporated to the absorbent element 30 of the napkin which is equipped with the usual gauze wrapper 3| the folds of which are shown folded b-ack to expose the interior construction. Said strip may be employed on either side of the element 30, as shown at 29 or 29', or it may be incorporated in the center of the pad as shown at 29".
Tests which have been carried out to ascertain the deodorizing effect of sanitary napkins which have been made in accordance with the foregoing specific example have shown that the deodorizing effect in the napkin is equivalent to the deodorizing effect obtained when about 21/2 grams of commercial zinc peroxide is incorporated in a napkin. Thus, it will be seen that on a weight basis, the deodorizing composition in accordance with the specific example is 100 times as effective as an equivalent weight of zinc peroxide. The element containing the combination of the zinc peroxide and the quaternary ammonium compound is soft and pliable and has substantially all of its original absorptivity.
The slurry employed in applying the mixture of zinc peroxide and quaternary ammonium compound to the deodorizing strip has been found to be stable in water so that there is little danger that the activity of the mixture will be reduced by circulating the slurry through the 6 about 1.5 to 30.0 milligrams of a quaternary ammonium compound and over about 15 milligrams of commercial zinc peroxide.
2. A sanitary napkin which includes a brous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 1.5 to 30.0 milligrams of a quaternary ammonium compound and from about 20 to 40 milligrams of commercial zinc peroxide.
3. A sanitary napkin which includes a brous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 6 to 15 milligrams of a quaternary ammonium compound and from about 20 to 40 milligrams of commercial zinc peroxide.
4. A sanitary napkin which includes a fibrous, liquid permeable, absorbent element and a deodorant distributed through the active portion thereof, the said deodorant comprising from 1.5 to 30.0 milligrams of di-isobutyl cresoxy ethoxy ethyl dimethyl benzyl ammonium chloride and from about 20 to 40 milligrams of commercial zinc peroxide.
5. A sanitary napkin which includes a brous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 1.5 to 30.0 milligrams of di-isobutyl phenoxy ethoxy ethyl dimethyl benzyl ammonium chloride and from about 20 to 40 milligrams of commercial zinc peroxide.
6. A sanitary napkin which includes a fibrous, liquid permeable, absorbent element and a deodorant distributed throughout the active portion thereof, the said deodorant comprising from about 1.5 to 30.0 milligrams of alkyl dimethyl benzyl ammonium chloride, said alkyl group containing from 8 to 18 carbon atoms and from about 20 to 40 milligrams of commercial zinc peroxide.
CHARL LOUIS ROUX DE WET.
REFERECES CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS Number Name Date 1,950,286 Barkow Mar. 6, 1934 1,953,526 Ainsley et al Apr. 3, 1934 2,024,145 Cline Dec. 17, 1935 2,131,235 Randall et al Sept.. 27, 1938 OTHER REFERENCES Annals of Surgery, Oct. 1943, page 744. Drug and Cosmetic Industry, Nov. 1943, page 585.

Claims (1)

1. A SANITARY NAPKIN WHICH INCLUDES A FIBROUS, LIQUID PERMEABLE, ABSORBENT ELEMENT AND A DEODORANT DISTRIBUTED THROUGHOUT THE ACTIVE PORTION THEREOF, THE SAID DEODORANT COMPRISING FROM ABOUT 1.5 T 30.0 MILLIGRAMS OF A QUATERNARY AMMONIUM COMPOUND AND OVER ABOUT 15 MILLIGRAMS OF COMMERCIAL ZINC PEROXIDE.
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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634229A (en) * 1949-07-20 1953-04-07 Int Cellucotton Products Sanitary napkin
US2702780A (en) * 1950-10-10 1955-02-22 Phil Kalech Measuring dispensing sheet for germicides and process of forming same
US2837462A (en) * 1954-12-29 1958-06-03 Chicopee Mfg Corp Nonwoven fabric and products containing bacteristatic agent
US2841529A (en) * 1952-08-29 1958-07-01 Papeteries De La Robertsau Sa Process for manufacturing cellulose wool and resulting products thereof
US2960089A (en) * 1958-05-02 1960-11-15 Kimberly Clark Co Cellulosic product
US3124135A (en) * 1960-06-30 1964-03-10 Cellulosic products
DE1239059B (en) * 1954-02-17 1967-04-20 Johnson & Johnson Cover for sanitary napkins
US3329145A (en) * 1965-02-12 1967-07-04 Johnson & Johnson Sanitary napkin having control element with gel-forming material
US3344789A (en) * 1964-12-29 1967-10-03 Azur Associates Diaper with film enclosed absorbent
US3707148A (en) * 1969-06-05 1972-12-26 Boots Pure Drug Co Ltd Impregnated diaper
US3897784A (en) * 1974-07-24 1975-08-05 Colgate Palmolive Co Sanitary napkin
US3964486A (en) * 1974-08-19 1976-06-22 The Procter & Gamble Company Disposable diaper containing ammonia inhibitor
US4237591A (en) * 1977-05-23 1980-12-09 Personal Products Company Deodorant mini-pad sanitary napkin
US4583980A (en) * 1980-08-16 1986-04-22 Henkel Kommanditgesellschaft Auf Aktien Sanitary hygiene products having odor-preventing properties
US4847089A (en) * 1986-07-16 1989-07-11 David N. Kramer Cleansing and distinfecting compositions, including bleaching agents, and sponges and other applicators incorporating the same
US5019062A (en) * 1988-06-23 1991-05-28 The Procter & Gamble Company Bicomponent material
WO2000051655A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Articles comprising oxidising and hemolytic agents
WO2000051654A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Articles having an odour control system
WO2000051656A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Breathable absorbent articles having an oxidising agent
WO2000051653A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Articles having an odour control system
US6730819B1 (en) 1999-03-05 2004-05-04 The Procter & Gamble Company Articles comprising oxidizing and hemolytic agents
US6734157B2 (en) 1999-12-28 2004-05-11 Kimberly-Clark Worldwide, Inc. Controlled release anti-microbial hard surface wiper
US6794318B2 (en) 1999-12-28 2004-09-21 Kimberly-Clark Worldwide, Inc. Use-dependent indicator system for absorbent articles
US6887496B2 (en) 2001-12-20 2005-05-03 Kimberly-Clark Worldwide, Inc. Products for controlling microbial organic compound production
US6916480B2 (en) 1999-12-28 2005-07-12 Kimberly-Clark Worldwide, Inc. Wiper containing a controlled-release anti-microbial agent
US20080276379A1 (en) * 2007-05-10 2008-11-13 Macdonald John Gavin Methods for discharging colorants
US20080277621A1 (en) * 2007-05-10 2008-11-13 Macdonald John Gavin Colorant neutralizer
US20090062764A1 (en) * 2007-08-30 2009-03-05 Kimberly-Clark Worldwide, Inc. Zoned application of decolorizing composition for use in absorbent articles
US9161869B2 (en) 2012-03-30 2015-10-20 Kimberly-Clark Worldwide, Inc. Absorbent articles with decolorizing agents
US9161868B2 (en) 2009-09-04 2015-10-20 Kimberly-Clark Worldwide, Inc. Removal of colored substances from aqueous liquids
US9237975B2 (en) 2013-09-27 2016-01-19 Kimberly-Clark Worldwide, Inc. Absorbent article with side barriers and decolorizing agents

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950286A (en) * 1928-07-26 1934-03-06 Barkow Carl Means for deodorizing sanitary napkins
US1953526A (en) * 1928-12-07 1934-04-03 Du Pont Absorbent material
US2024145A (en) * 1931-04-28 1935-12-17 Int Paper Co Deodorant
US2131235A (en) * 1933-10-30 1938-09-27 James W H Randall Deodorizing material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950286A (en) * 1928-07-26 1934-03-06 Barkow Carl Means for deodorizing sanitary napkins
US1953526A (en) * 1928-12-07 1934-04-03 Du Pont Absorbent material
US2024145A (en) * 1931-04-28 1935-12-17 Int Paper Co Deodorant
US2131235A (en) * 1933-10-30 1938-09-27 James W H Randall Deodorizing material

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634229A (en) * 1949-07-20 1953-04-07 Int Cellucotton Products Sanitary napkin
US2702780A (en) * 1950-10-10 1955-02-22 Phil Kalech Measuring dispensing sheet for germicides and process of forming same
US2841529A (en) * 1952-08-29 1958-07-01 Papeteries De La Robertsau Sa Process for manufacturing cellulose wool and resulting products thereof
DE1239059B (en) * 1954-02-17 1967-04-20 Johnson & Johnson Cover for sanitary napkins
US2837462A (en) * 1954-12-29 1958-06-03 Chicopee Mfg Corp Nonwoven fabric and products containing bacteristatic agent
US2960089A (en) * 1958-05-02 1960-11-15 Kimberly Clark Co Cellulosic product
US3124135A (en) * 1960-06-30 1964-03-10 Cellulosic products
DE1202933B (en) * 1960-06-30 1965-10-14 Kimberly Clark Co Absorbent pad, especially sanitary pad
US3344789A (en) * 1964-12-29 1967-10-03 Azur Associates Diaper with film enclosed absorbent
US3329145A (en) * 1965-02-12 1967-07-04 Johnson & Johnson Sanitary napkin having control element with gel-forming material
US3707148A (en) * 1969-06-05 1972-12-26 Boots Pure Drug Co Ltd Impregnated diaper
US3897784A (en) * 1974-07-24 1975-08-05 Colgate Palmolive Co Sanitary napkin
US3964486A (en) * 1974-08-19 1976-06-22 The Procter & Gamble Company Disposable diaper containing ammonia inhibitor
US4237591A (en) * 1977-05-23 1980-12-09 Personal Products Company Deodorant mini-pad sanitary napkin
US4583980A (en) * 1980-08-16 1986-04-22 Henkel Kommanditgesellschaft Auf Aktien Sanitary hygiene products having odor-preventing properties
US4847089A (en) * 1986-07-16 1989-07-11 David N. Kramer Cleansing and distinfecting compositions, including bleaching agents, and sponges and other applicators incorporating the same
US5019062A (en) * 1988-06-23 1991-05-28 The Procter & Gamble Company Bicomponent material
WO2000051653A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Articles having an odour control system
WO2000051656A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Breathable absorbent articles having an oxidising agent
WO2000051655A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Articles comprising oxidising and hemolytic agents
EP1034803A1 (en) * 1999-03-05 2000-09-13 The Procter & Gamble Company Breathable absorbent articles having an oxidising agent based odour control system
EP1034799A1 (en) * 1999-03-05 2000-09-13 The Procter & Gamble Company Articles having an odour control system comprising a water soluble oxidising agent and an emulsifier
EP1034805A1 (en) * 1999-03-05 2000-09-13 The Procter & Gamble Company Articles having an odour control system comprising a non water soluble oxidising agent and a solubilising agent
EP1034804A1 (en) * 1999-03-05 2000-09-13 The Procter & Gamble Company Articles comprising an oxidising agent and a hemolytic agent
US6730819B1 (en) 1999-03-05 2004-05-04 The Procter & Gamble Company Articles comprising oxidizing and hemolytic agents
WO2000051654A1 (en) * 1999-03-05 2000-09-08 The Procter & Gamble Company Articles having an odour control system
US6916480B2 (en) 1999-12-28 2005-07-12 Kimberly-Clark Worldwide, Inc. Wiper containing a controlled-release anti-microbial agent
US6734157B2 (en) 1999-12-28 2004-05-11 Kimberly-Clark Worldwide, Inc. Controlled release anti-microbial hard surface wiper
US6794318B2 (en) 1999-12-28 2004-09-21 Kimberly-Clark Worldwide, Inc. Use-dependent indicator system for absorbent articles
US6887496B2 (en) 2001-12-20 2005-05-03 Kimberly-Clark Worldwide, Inc. Products for controlling microbial organic compound production
US7235263B2 (en) 2001-12-20 2007-06-26 Kimberly-Clark Worldwide, Inc. Processes for controlling microbial organic compound production
US20080276379A1 (en) * 2007-05-10 2008-11-13 Macdonald John Gavin Methods for discharging colorants
US20080277621A1 (en) * 2007-05-10 2008-11-13 Macdonald John Gavin Colorant neutralizer
US9657257B2 (en) 2007-05-10 2017-05-23 Kimberly-Clark Worldwide, Inc. Colorant neutralizer
US20090062764A1 (en) * 2007-08-30 2009-03-05 Kimberly-Clark Worldwide, Inc. Zoned application of decolorizing composition for use in absorbent articles
US9161868B2 (en) 2009-09-04 2015-10-20 Kimberly-Clark Worldwide, Inc. Removal of colored substances from aqueous liquids
US9161869B2 (en) 2012-03-30 2015-10-20 Kimberly-Clark Worldwide, Inc. Absorbent articles with decolorizing agents
US9220646B2 (en) 2012-03-30 2015-12-29 Kimberly-Clark Worldwide, Inc. Absorbent articles with improved stain decolorization
US9283127B2 (en) 2012-03-30 2016-03-15 Kimberly-Clark Worldwide, Inc. Absorbent articles with decolorizing structures
US9237975B2 (en) 2013-09-27 2016-01-19 Kimberly-Clark Worldwide, Inc. Absorbent article with side barriers and decolorizing agents

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