CA1229452A - Disposable absorbent liners - Google Patents
Disposable absorbent linersInfo
- Publication number
- CA1229452A CA1229452A CA000463253A CA463253A CA1229452A CA 1229452 A CA1229452 A CA 1229452A CA 000463253 A CA000463253 A CA 000463253A CA 463253 A CA463253 A CA 463253A CA 1229452 A CA1229452 A CA 1229452A
- Authority
- CA
- Canada
- Prior art keywords
- liner
- primary
- tab portion
- planar surfaces
- fluid
- 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.)
- Expired
Links
- 230000002745 absorbent Effects 0.000 title claims abstract description 22
- 239000002250 absorbent Substances 0.000 title claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 description 9
- 239000000835 fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A protective absorbent liner for use in conjunction with conventional sanitary napkins to provide additional absorbent capacity when required is taught.
A protective absorbent liner for use in conjunction with conventional sanitary napkins to provide additional absorbent capacity when required is taught.
Description
so The present invention relates to disposable absorbent liners.
Man disposable absorbent liners are taught in the prior art and include, for example, diapers, sanitary napkins, panty shields, various pads used in the medical field, etc. The present invention is related to the field of sanitary napkins and panty shields. Such products are well known and are provided to absorb and retain body fluids to protect the undergarment from staining and soiling. The prior art teaches many such products which comprise an absorbent body having pair of opposed major planar surfaces. While such products have become widely accepted, many such products have been found to have insufficient absorbent capacity under certain conditions - e.g. during overnight use.
It is an object of the present invention to provide a product having an absorbent body which may be utilized in conjunction with conventional sanitary napkins and/or panty shields when required.
According to the present invention, there is provided a protective adsorbent liner for unclergarm~nts which has a body portion with a pair of opposed major planar surfaces. One of the surfaces is a body contacting surface and the other surface is a garment contacting surface. The garment contacting surface has means associated therewith for securing the liner to the garment while adjacent or forming a portion of the garment containing so surface is a fluid impervious layer. The liner is adapted to be used posteriorly of conventional sanitary napkins and/or panty shields and will generally 'rave a length of between 5 and 12 inches and a width of between 3 and lo inches. It is desirable that a tab portion having adhesive means associated therewith be utilized for securing the liner to conventional products.
The product of the present invention is desirably adapted for use with conventional garment liners such as Nemo sanitary napkins and panty shields. The product is adapted to be secured posteriorly of the conventional product and utilized when the conventional product does not provide the required absorbent capacity. However, as will be appreciated by those knowledgeable in the art, one could combine the two products - i.e. the conventional liner and the liner of the present invention could be manufac-lured as a single unit if so desired.
The liner of the present invention may be manufactured in accordance with known techniques and having known properties. Thus, the liner will have a pair of opposed major faces with one of the major faces for contact with the body of the wearer and the other major faces for contact with the ~nderyarment. The liner will include an absorbent body portion, the body portion being made of any suitable absorbent material which is well known in the art. gyp eel of such absorbent materials I
many natural fibers such as cotton, rayon, judo pulp fibers, and the like. Similarly, synthetic materials may equally well be utilized including synthetic materials which although they do not normally have the required absorbent properties, have Den -treated to have the such properties. The particular material or form of the absorbent material may be any which is known in the art.
On one of the major faces, the major face adapted to contact the undergarment there will normally ye provided adhesive means for adhering the liner to the undergarment although other means such as belts for retaining the liner in position may be used. Again such adhesive means or systems are well known to those skilled in the art and must meet several requirements. Thus, the adhesive system, when secured to the undergarment, should withstand normal frictional forces and have the required "stickiness" to maintain adherence to the garment. On the other hand, for disposal of the liner, it is required that the user can peel the liner from the garment.
As aforementioned, such adhesive systems are well known to those skilled in the art and will generally include a protective release strip which overlies the pressure-sensitive portion to protect the adhesive portion from unintentional adhesion when packaged, stored and handled prior to use.
I
The liner will also preferably include a fluid impervious layer which is in juxtaposition Tooth the garment contacting major face to act as a barrier and prevent any "strike through". Again, such a fluid impervious layer is well known to those skilled in the art and may include any conventional materials such as various polymeric films or in the alternative, may include the treatment of the outer layer to render the same fluid impervious.
Similarly, the body contacting surface may be treated in a manner Known to those skilled in the art to ensure that the contacting surface remains "dry".
When utilized in conjunction with conventional sanitary napkins and panty shields, the liner will preferably include a tab portion, which tab portion will have adhesive means associated therewith for Sacramento to the conventional sanitary napkin or the like. The tab portion is preferably a very thin layer and may be a continuation of one of the layers forming the liner. Thus, the liner, when used in conjunction with conventional products would be secured thereto.
The product of the present invention will, at the end, adapted to he secured to the conventional product, have a width substantially equal to that of the conventional product and will taper outwardly to a substantially greater width.
I
The above described liner of the present invention has an overall elongated configuration. Its dimensions will generally vary between 4 and 12 inches in length while waving a width of between 2 and lo inches.
Having thus generally described the invention reference will be made to the accompanying drawings illustrating an embodiment thereof, in which:-FIGURE l is a perspective view of a first embodiment of the invention; and FIGURE 2 is a perspective view of a further embodiment of the invention.
As shown in figure l, liner lo of the present invention has a pair of opposed major planar surfaces 12 and 14. Surface 12 is the body contacting surface while surface 14 is the garment contacting surface. Intermediate of body contacting surface 12 and garment contacting surface 14 is an absorbent layer generally designated by reference numeral 16. Layer 16 is formed of an absorbent material which may ho chosen of those materials known in the art.
The liner includes a fluid impervious layer generally designated by reference numeral 18. Layer 18, which in the illustrated embodiment, forms garment contacting surface 14, is preferably a thin flexible impermeable material such as a polymeric material. As may be seen in Figure l, a pair of adhesive strips 20 are provided on fluid impervious layer 18 which forms garment contacting so surface 14. A peel or release strip 22 is provided to protect adhesive 20 from dirt and unintended adhesion prior to its desired use.
A tab portion generally designated by reference numeral 24 is provided; tab portion 24 is integral with and is an extension of fluid impervious layer 18.
Adhesive 26 is provided on tab portion 24; tab portion 24 may then be secured to a conventional sanitary napkin , or panty shield.
In the embodiment of Figure 2, a liner 10' is formed to function both as the posterior portion of the above-described embodiment and as well as a conventional sanitary napking/panty shield. In this embodiment, the line 10' again has a body contacting surface 12', a garment contacting surface 14', and an absorbent layer 16' between the pair of opposed major surfaces. A fluid impervious layer 18' having adhesive 20 thereon with peel or release strip 22 covering the adhesive until desired.
As previously discussed, the liner of the present invention is adapted to be secured posteriorly of the conventional panty shield/sanitary napkin and its to be used when additional absorbent capacity is required. As such, the liner of the present invention will taper outwardly from an initial relatively narrow portion adapted to be secured to the crotch portion of a garment to a relatively wider portion which will provide the required absorbency capacity.
The initial relatively narrate portion may include the tab portion which may be securable either to the garment or to the conventional panty shield/sanitary napkin. The tab portion will be relatively narrow - i.e.
a width of between 1 to 2 inches and a length of approximately 1-1/2 inches would be sufficient.
It will be understood that the above described embodiments are for purposes of illustration only and that changes and modifications may be made thereto without departing from the spirit and scope of the invention.
Man disposable absorbent liners are taught in the prior art and include, for example, diapers, sanitary napkins, panty shields, various pads used in the medical field, etc. The present invention is related to the field of sanitary napkins and panty shields. Such products are well known and are provided to absorb and retain body fluids to protect the undergarment from staining and soiling. The prior art teaches many such products which comprise an absorbent body having pair of opposed major planar surfaces. While such products have become widely accepted, many such products have been found to have insufficient absorbent capacity under certain conditions - e.g. during overnight use.
It is an object of the present invention to provide a product having an absorbent body which may be utilized in conjunction with conventional sanitary napkins and/or panty shields when required.
According to the present invention, there is provided a protective adsorbent liner for unclergarm~nts which has a body portion with a pair of opposed major planar surfaces. One of the surfaces is a body contacting surface and the other surface is a garment contacting surface. The garment contacting surface has means associated therewith for securing the liner to the garment while adjacent or forming a portion of the garment containing so surface is a fluid impervious layer. The liner is adapted to be used posteriorly of conventional sanitary napkins and/or panty shields and will generally 'rave a length of between 5 and 12 inches and a width of between 3 and lo inches. It is desirable that a tab portion having adhesive means associated therewith be utilized for securing the liner to conventional products.
The product of the present invention is desirably adapted for use with conventional garment liners such as Nemo sanitary napkins and panty shields. The product is adapted to be secured posteriorly of the conventional product and utilized when the conventional product does not provide the required absorbent capacity. However, as will be appreciated by those knowledgeable in the art, one could combine the two products - i.e. the conventional liner and the liner of the present invention could be manufac-lured as a single unit if so desired.
The liner of the present invention may be manufactured in accordance with known techniques and having known properties. Thus, the liner will have a pair of opposed major faces with one of the major faces for contact with the body of the wearer and the other major faces for contact with the ~nderyarment. The liner will include an absorbent body portion, the body portion being made of any suitable absorbent material which is well known in the art. gyp eel of such absorbent materials I
many natural fibers such as cotton, rayon, judo pulp fibers, and the like. Similarly, synthetic materials may equally well be utilized including synthetic materials which although they do not normally have the required absorbent properties, have Den -treated to have the such properties. The particular material or form of the absorbent material may be any which is known in the art.
On one of the major faces, the major face adapted to contact the undergarment there will normally ye provided adhesive means for adhering the liner to the undergarment although other means such as belts for retaining the liner in position may be used. Again such adhesive means or systems are well known to those skilled in the art and must meet several requirements. Thus, the adhesive system, when secured to the undergarment, should withstand normal frictional forces and have the required "stickiness" to maintain adherence to the garment. On the other hand, for disposal of the liner, it is required that the user can peel the liner from the garment.
As aforementioned, such adhesive systems are well known to those skilled in the art and will generally include a protective release strip which overlies the pressure-sensitive portion to protect the adhesive portion from unintentional adhesion when packaged, stored and handled prior to use.
I
The liner will also preferably include a fluid impervious layer which is in juxtaposition Tooth the garment contacting major face to act as a barrier and prevent any "strike through". Again, such a fluid impervious layer is well known to those skilled in the art and may include any conventional materials such as various polymeric films or in the alternative, may include the treatment of the outer layer to render the same fluid impervious.
Similarly, the body contacting surface may be treated in a manner Known to those skilled in the art to ensure that the contacting surface remains "dry".
When utilized in conjunction with conventional sanitary napkins and panty shields, the liner will preferably include a tab portion, which tab portion will have adhesive means associated therewith for Sacramento to the conventional sanitary napkin or the like. The tab portion is preferably a very thin layer and may be a continuation of one of the layers forming the liner. Thus, the liner, when used in conjunction with conventional products would be secured thereto.
The product of the present invention will, at the end, adapted to he secured to the conventional product, have a width substantially equal to that of the conventional product and will taper outwardly to a substantially greater width.
I
The above described liner of the present invention has an overall elongated configuration. Its dimensions will generally vary between 4 and 12 inches in length while waving a width of between 2 and lo inches.
Having thus generally described the invention reference will be made to the accompanying drawings illustrating an embodiment thereof, in which:-FIGURE l is a perspective view of a first embodiment of the invention; and FIGURE 2 is a perspective view of a further embodiment of the invention.
As shown in figure l, liner lo of the present invention has a pair of opposed major planar surfaces 12 and 14. Surface 12 is the body contacting surface while surface 14 is the garment contacting surface. Intermediate of body contacting surface 12 and garment contacting surface 14 is an absorbent layer generally designated by reference numeral 16. Layer 16 is formed of an absorbent material which may ho chosen of those materials known in the art.
The liner includes a fluid impervious layer generally designated by reference numeral 18. Layer 18, which in the illustrated embodiment, forms garment contacting surface 14, is preferably a thin flexible impermeable material such as a polymeric material. As may be seen in Figure l, a pair of adhesive strips 20 are provided on fluid impervious layer 18 which forms garment contacting so surface 14. A peel or release strip 22 is provided to protect adhesive 20 from dirt and unintended adhesion prior to its desired use.
A tab portion generally designated by reference numeral 24 is provided; tab portion 24 is integral with and is an extension of fluid impervious layer 18.
Adhesive 26 is provided on tab portion 24; tab portion 24 may then be secured to a conventional sanitary napkin , or panty shield.
In the embodiment of Figure 2, a liner 10' is formed to function both as the posterior portion of the above-described embodiment and as well as a conventional sanitary napking/panty shield. In this embodiment, the line 10' again has a body contacting surface 12', a garment contacting surface 14', and an absorbent layer 16' between the pair of opposed major surfaces. A fluid impervious layer 18' having adhesive 20 thereon with peel or release strip 22 covering the adhesive until desired.
As previously discussed, the liner of the present invention is adapted to be secured posteriorly of the conventional panty shield/sanitary napkin and its to be used when additional absorbent capacity is required. As such, the liner of the present invention will taper outwardly from an initial relatively narrow portion adapted to be secured to the crotch portion of a garment to a relatively wider portion which will provide the required absorbency capacity.
The initial relatively narrate portion may include the tab portion which may be securable either to the garment or to the conventional panty shield/sanitary napkin. The tab portion will be relatively narrow - i.e.
a width of between 1 to 2 inches and a length of approximately 1-1/2 inches would be sufficient.
It will be understood that the above described embodiments are for purposes of illustration only and that changes and modifications may be made thereto without departing from the spirit and scope of the invention.
Claims (4)
1. A disposable absorbent secondary liner for undergarments for use in association with a primary panty liner type of feminine napkin comprising an elongated body having a pair of opposed major planar surfaces, an absorbent layer, a fluid-impervious layer forming one of said major planar surfaces, said fluid-impervious layer having adhesive means associated therewith for adherement of the secondary liner to the undergarment, a removable protective release strip overlying said adhesive system, said secondary liner having a length of between 4 and 12 inches and a width of between 2 and 10 inches, and a tab portion adjacent one end for securement to said primary panty liner, said secondary liner being adapted to be placed posteriorly of said primary liner, said secondary liner tapering outwardly from said tab portion in an arcuate manner to have a width substantially greater than said primary liner.
2. The liner of claim 1 wherein said tab portion includes adhesive means associated therewith.
3. The liner of claim 2 wherein said tab member has a thickness less than the body portion of the liner.
4. A disposable absorbent secondary liner for undergarments for use in association with a primary panty liner type of feminine napkin comprising an elongated body having a pair of opposed major planar surfaces, an absorbent layer, a fluid-impervious layer forming one of said major planar surfaces, said fluid impervious layer having adhesive means associated therewith for adherement of the liner to the undergarment, a removable protective release strip overlying said adhesive means, and a tab portion adapted to be secured to the primary liner whereby said secondary liner is placed posteriorly of the primary liner, said secondary liner tapering outwardly from said tab portion in an arcuate manner to have a width substantially greater than said primary liner.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53285583A | 1983-09-16 | 1983-09-16 | |
| US532,855 | 1983-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1229452A true CA1229452A (en) | 1987-11-24 |
Family
ID=24123460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000463253A Expired CA1229452A (en) | 1983-09-16 | 1984-09-14 | Disposable absorbent liners |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1229452A (en) |
-
1984
- 1984-09-14 CA CA000463253A patent/CA1229452A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |