GB2075846A - Tampon having a surface covering - Google Patents
Tampon having a surface covering Download PDFInfo
- Publication number
- GB2075846A GB2075846A GB8113915A GB8113915A GB2075846A GB 2075846 A GB2075846 A GB 2075846A GB 8113915 A GB8113915 A GB 8113915A GB 8113915 A GB8113915 A GB 8113915A GB 2075846 A GB2075846 A GB 2075846A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tampon
- thickener
- gelling agent
- gum
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003349 gelling agent Substances 0.000 claims abstract description 26
- 239000002562 thickening agent Substances 0.000 claims abstract description 26
- 244000215068 Acacia senegal Species 0.000 claims abstract description 4
- 241000416162 Astragalus gummifer Species 0.000 claims abstract description 4
- 229920000084 Gum arabic Polymers 0.000 claims abstract description 4
- 229920000569 Gum karaya Polymers 0.000 claims abstract description 4
- 229920000161 Locust bean gum Polymers 0.000 claims abstract description 4
- 241000934878 Sterculia Species 0.000 claims abstract description 4
- 229920001615 Tragacanth Polymers 0.000 claims abstract description 4
- 235000010489 acacia gum Nutrition 0.000 claims abstract description 4
- 239000000205 acacia gum Substances 0.000 claims abstract description 4
- 235000010494 karaya gum Nutrition 0.000 claims abstract description 4
- 239000000231 karaya gum Substances 0.000 claims abstract description 4
- 229940039371 karaya gum Drugs 0.000 claims abstract description 4
- 235000010420 locust bean gum Nutrition 0.000 claims abstract description 4
- 239000000711 locust bean gum Substances 0.000 claims abstract description 4
- 235000010491 tara gum Nutrition 0.000 claims abstract description 4
- 239000000213 tara gum Substances 0.000 claims abstract description 4
- 229920001817 Agar Polymers 0.000 claims abstract description 3
- 241000206672 Gelidium Species 0.000 claims abstract description 3
- 229920002907 Guar gum Polymers 0.000 claims abstract description 3
- 235000003421 Plantago ovata Nutrition 0.000 claims abstract description 3
- 244000134552 Plantago ovata Species 0.000 claims abstract description 3
- 239000009223 Psyllium Substances 0.000 claims abstract description 3
- 235000010419 agar Nutrition 0.000 claims abstract description 3
- 229920001525 carrageenan Polymers 0.000 claims abstract description 3
- 235000010418 carrageenan Nutrition 0.000 claims abstract description 3
- 239000002657 fibrous material Substances 0.000 claims abstract description 3
- 235000010417 guar gum Nutrition 0.000 claims abstract description 3
- 239000000665 guar gum Substances 0.000 claims abstract description 3
- 229960002154 guar gum Drugs 0.000 claims abstract description 3
- 229940070687 psyllium Drugs 0.000 claims abstract description 3
- 230000002175 menstrual effect Effects 0.000 claims abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- 235000010443 alginic acid Nutrition 0.000 abstract description 3
- 229920000615 alginic acid Polymers 0.000 abstract description 3
- 108010010803 Gelatin Proteins 0.000 abstract description 2
- 229920000159 gelatin Polymers 0.000 abstract description 2
- 239000008273 gelatin Substances 0.000 abstract description 2
- 235000019322 gelatine Nutrition 0.000 abstract description 2
- 235000011852 gelatine desserts Nutrition 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 210000004400 mucous membrane Anatomy 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 3
- 239000010839 body fluid Substances 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 230000005906 menstruation Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- 240000008886 Ceratonia siliqua Species 0.000 description 1
- 235000013912 Ceratonia siliqua Nutrition 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000010410 calcium alginate Nutrition 0.000 description 1
- 239000000648 calcium alginate Substances 0.000 description 1
- 229960002681 calcium alginate Drugs 0.000 description 1
- OKHHGHGGPDJQHR-YMOPUZKJSA-L calcium;(2s,3s,4s,5s,6r)-6-[(2r,3s,4r,5s,6r)-2-carboxy-6-[(2r,3s,4r,5s,6r)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate Chemical compound [Ca+2].O[C@@H]1[C@H](O)[C@H](O)O[C@@H](C([O-])=O)[C@H]1O[C@H]1[C@@H](O)[C@@H](O)[C@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@H](O2)C([O-])=O)O)[C@H](C(O)=O)O1 OKHHGHGGPDJQHR-YMOPUZKJSA-L 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
-
- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2051—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the material or the structure of the inner absorbing core
-
- 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
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
Abstract
A tampon for use by women for menstrual flow is provided which consists of a roll of compressed fibrous material of which the outer wall is at least partially covered with a layer of at least one thickener or gelling agent which is guar gum, carob gum, tara gum, gum arabic, gum tragacanth, karaya gum, agar-agar, alginates carrageenins, gelatin or psyllium.
Description
SPECIFICATION
Tampon having a surface covering
The present invention relates to a tampon consisting of a compressed absorbent roll, for example made of cottonwool or cotton fibres, which is used by women as an internal protection against-menstrual flow.
In order to make them easier to use; such tampons are generally packaged inside an insertion tube formed by a cylindrical element in which the tampon is placed, this cylindrical element being provided at one end with a plunger which makes it possible to push the tampon out of the cylindrical element and thus to position it in the body.
Once they are placed in a moist enviroriment, the tampons are capable of increasing considerably in volume because of the highly absorbent nature of the fibrous material of which they are made; howev
er, at the end of menstruation, precisely because of this highly absorbent nature, the mucous mem
branes may become dry and the tampon may become difficult to remove.
In order to make tampons easier to insert and remove, it has already been proposed (see French
Patent 69/38453) to cover the outer wall of the tampon with a layer of lubricant, for example with a
layer of certain polyvinyl alcohols. Although this does in fact make the tampon easier to insert and
remove after use, a covering of this type neverthe
less exhibits the disadvantage of substantially reduc
ins the penetration of the body fluids into the tampon from the parts of the surface which are coated with lubricant. It is for this reason that, in the
French patent in question, it was proposed to apply the lubricating substance only to that end of the tampon at which insertion takes place.
The aim of the present invention is to provide a tampon having a lubricating outer covering which
does not constitute, for the body fluids, a barrier
such as to greatly reduce their penetration into the tampon. The tampon covering according to the
invention assumes a gelatinous consistency in a
moist environment, which, at the end of menstruation, prevents the mucous membranes from becom
ing dry and assists the removal of the tampon after
use.
The present invention thus provides a tampon of the type indicated above, characterised in that the outer wall of the tampon is at least partially covered with a layer of at least one thickener or gelling agent.
In a preferred embodiment, the layer of thickener
or gelling agent is arranged on the side wall of the tampon.
In the present invention, the thickener or gelling agent preferably consists of one or more polysaccharides extracted from plants, and more precisely from seeds or algae. Amongst the polysaccharides, extracted from plants, which can be used as the thickener or gelling agent, there may be mentioned guar gum, carob gum, tara gum, gum arabic, gum tragacanth, karaya gum, agar-agar, alginates, espe cially calcium alginate, carrageenins, gelatin and
psyllium.
The thickeners or gelling agents listed above are generally commercially available in the form of a powder or flour. To coat the tampon, the powder or flour of the chosen thickener or gelling agent is suitably dissolved in water so as to form a viscous solution containing from, say, 1 to 10% by weight of thickener or gelling agent, relative to the total weight of the solution. Such a solution can be applied by any appropriate means, either to the fibrous web which is to form the tampon, or to the actual tampon after the fibrous web has been rolled up, before or after the roll formed in this way is compressed.
When the coating operation is finished, a drying operation is carried out, for example in an oven at a temperature of about 1200C,so as to form a substantially dry layer around the tampon.
The weight of the layer of thickener or gelling agent applied to the tampon, according to the invention, is preferably 1 g/m2 to 100 glum2, the surface area being measured on the tampon in the compressed state. A substance acting as a plasticiser and making it possible to obtain coatings which are softer to the touch and more flexible is advantageously incorporated into the aqueous solution of the thickener or gelling agent, which is, to coat the tampon. Amongst the plasticising substances, an example which may be mentioned is glycerol, typically used in an amount of 10% to 50% by weight in the coating solution.
In an advantageous variant of the invention, the tampon is also coated, preferably on a part of its outer wall which is not covered with the layer of thickener or gelling agent, with a'lubricant which is a glyceride, fatty alcohol or a mixture of paraffin and vaseline (liquid petrolatum). The purpose of the presence of the lubricant is to make the tampon easier to insert into the position in which it is used.
The invention will now be described, merely by way of example, with reference to the accompanying drawing in which the single Figure shows, in perspective, an insertion tube provided with a tampon according to the invention.
With reference to the Figure, it can be seen that 1 designates an insertion tube of conventional type, consisting of a cylindrical element 2 and a plunger 3 capable of sliding inside the said element. A tampon 4 according to the invention is also housed in the cylindrical element 2. For reasons of clarity, the tampon 4 is shown with part of it outside the cylindrical element 2. The side wall of the tampon 4 possesses four folds 5, which, seen from the outside, have the appearance of grooves created in the wall of the tampon 4. The four folds 5 are parallel to the axis of the tampon 4; they are distributed over this element at 900 intervals; the length of the tampon 4 is about 5 cm and its external diameter, measured outside the folds 5, is about 1.3 cm.
A string 6 is attached to the tampon 4 to enable it to be removed after use. The string 6 passes through the plunger 3 of the insertion tube.
The-tampon 4 is produced from a web of cotton fibres and viscose fibres; this web is rolled up in a known manner and then highly compressed, the four folds 5 being created at the time of compression.
The essential characteristic of the tampon 4 origin- ates from the fact that its side wall is covered, outside the folds 5, with a layer of a thickener or gelling agent. The thickener or gelling agent used is chosen from: alginates, gum arabic, carob gum, gum tragacanth, karaya gum, carob flour and tara gum.
To apply the thickener or gelling agent, an aqueous solution of the thickener or gelling agent containing from 1 to 10% of the said thickener or gelling agent by weight is prepared. In this example, the above coating solution is applied to the side wall of the tampon 4 once the latter has been highly compressed and the folds 5 have been formed. The thickener or gelling agent thus forms a substantially continuous layer on each zone of the side wall of the tampon 4 which is between two folds 5. The tampon 4 which has been coated is then dried using means such as hot-airdrying or infra-red drying. The amount of thickener or gelling agent applied to the tampon 4 is about 10 g/m2.
As a variant, a lubricant, such as a mixture of paraffin and vaseline, can be applied to that end of the tampon 4 which is opposite the plunger 3 of the insertion tube, in order to make the tampon 4 even easier to insert.
It is observed that the layer of thickener or gelling agent has the effect of making the tampon 4 easier to insert and position. In the presence of body fluids, the layer of thickener or gelling agent forms a gelatinous medium which does not oppose the penetration of the said fluids into the tampon 4, and which at the same time keeps a certain amount of moisture in contact with the mucous membranes, thus avoiding any risks of irritation. When the user is at the end of her menstruation, there is no adhesion of the tampon 4 to the mucous membranes because of the presence of this gelatinous medium, so that the tampon is very much easier to remove.
Claims (10)
1. A tampon for use by women for menstrual flow, the said tampon consisting of a roll of compressed fibrous material of which the outer wall is at least partially covered with a layer of at least one thickener or gelling agent, which is guar gum, carob gum, tara gum, gum arabic, gum tragacanth, karaya gum, agar-agar, carrageenins or psyllium.
2. Atampon according to claim 1 in which the layer of thickener or gelling agent is arranged on the side wall of the tampon.
3. Atampon according to claim 2 in which the side wall possesses folds arranged substantially parallel to the axis of the tampon, the layer of thickener or gelling agent being arranged on the side wall ofthetampon outside the folds.
4. Atampon according to any one of claims 1 to 3, in which the layer of thickener or gelling agent also contains a plasticiser.
5. A tampon according to claim 4 in which the plasticiser is glycerol.
6. Atampon according to any one of claims 1 to Sin which the layer of thickener or gelling agent has a weight of 1 g/m2to 100 gum2, the surface area being measured on the tampon in the dry state.
7. A tampon according to claim 1 substantially as hereinbefore described.
8. A method of preparing a tampons claimed in any one of the preceding claims which comprises coating with an aqueous solution containing 1 to 10% by weight of the thickener or gelling agent either the fibrous web which is to form the tampon or the tampon itself before or after any compression has taken place.
9. A method according to claim 8 substantially as hereinbefore described.
10. Atampon as defined in claim 1 whenever prepared by a method as claimed in claim 8 or 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8010739A FR2482452A1 (en) | 1980-05-13 | 1980-05-13 | PERIODIC PAD HAVING SURFACE COATING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2075846A true GB2075846A (en) | 1981-11-25 |
| GB2075846B GB2075846B (en) | 1984-05-16 |
Family
ID=9241944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8113915A Expired GB2075846B (en) | 1980-05-13 | 1981-05-07 | Tampon having a surface covering |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE888772A (en) |
| DE (1) | DE3118824A1 (en) |
| ES (1) | ES258237Y (en) |
| FR (1) | FR2482452A1 (en) |
| GB (1) | GB2075846B (en) |
| IT (2) | IT8153226V0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5813102A (en) * | 1993-02-15 | 1998-09-29 | Mcneil-Ppc, Inc. | Process for producing a tampon having densified, solid, fibrous core |
| US6889409B2 (en) | 1989-10-12 | 2005-05-10 | Johnson & Johnson Gmbh | Tampon, especially for feminine hygiene, and a process and apparatus for producing this |
| WO2006092581A1 (en) * | 2005-03-01 | 2006-09-08 | Sarah Annabelle Brooks | Lubricating composition |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1096979A (en) * | 1954-02-11 | 1955-06-28 | Tampons, beads, etc., and materials for their preparation | |
| GB1286679A (en) * | 1968-09-05 | 1972-08-23 | David Torr | Water absorbing material |
| CA930128A (en) * | 1969-10-21 | 1973-07-17 | Torr David | Fiber products containing water-absorbent material |
| BE758152A (en) * | 1969-11-07 | 1971-04-28 | Oreal | PACKAGING OF CATAMENIAL PADS |
| FR2080061A5 (en) * | 1970-02-23 | 1971-11-12 | Perrin Jacques | Vaginal tampon - contg particles of gelling material such as cellulose derivs |
| US3683912A (en) * | 1970-04-28 | 1972-08-15 | Kimberly Clark Co | Absorbent tampon |
-
1980
- 1980-05-13 FR FR8010739A patent/FR2482452A1/en active Granted
-
1981
- 1981-05-07 GB GB8113915A patent/GB2075846B/en not_active Expired
- 1981-05-12 BE BE0/204765A patent/BE888772A/en not_active IP Right Cessation
- 1981-05-12 ES ES1981258237U patent/ES258237Y/en not_active Expired
- 1981-05-12 IT IT8153226U patent/IT8153226V0/en unknown
- 1981-05-12 IT IT67640/81A patent/IT1144360B/en active
- 1981-05-12 DE DE3118824A patent/DE3118824A1/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6889409B2 (en) | 1989-10-12 | 2005-05-10 | Johnson & Johnson Gmbh | Tampon, especially for feminine hygiene, and a process and apparatus for producing this |
| US5813102A (en) * | 1993-02-15 | 1998-09-29 | Mcneil-Ppc, Inc. | Process for producing a tampon having densified, solid, fibrous core |
| WO2006092581A1 (en) * | 2005-03-01 | 2006-09-08 | Sarah Annabelle Brooks | Lubricating composition |
| GB2437903A (en) * | 2005-03-01 | 2007-11-07 | Sarah Annabelle Brooks | Lubricating composition |
| GB2437903B (en) * | 2005-03-01 | 2009-08-05 | Sarah Annabelle Brooks | Lubricating composition |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2482452B1 (en) | 1984-03-23 |
| DE3118824A1 (en) | 1982-04-01 |
| BE888772A (en) | 1981-11-12 |
| IT8167640A0 (en) | 1981-05-12 |
| IT8153226V0 (en) | 1981-05-12 |
| ES258237U (en) | 1982-01-01 |
| GB2075846B (en) | 1984-05-16 |
| IT1144360B (en) | 1986-10-29 |
| FR2482452A1 (en) | 1981-11-20 |
| ES258237Y (en) | 1982-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |