CA2151758C - Sanitary napkin - Google Patents
Sanitary napkinInfo
- Publication number
- CA2151758C CA2151758C CA002151758A CA2151758A CA2151758C CA 2151758 C CA2151758 C CA 2151758C CA 002151758 A CA002151758 A CA 002151758A CA 2151758 A CA2151758 A CA 2151758A CA 2151758 C CA2151758 C CA 2151758C
- Authority
- CA
- Canada
- Prior art keywords
- napkin
- sanitary napkin
- barrier flaps
- flaps
- stretchable
- 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 - Fee Related
Links
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
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
- A61F13/4753—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier the barrier being not integral with the topsheet or backsheet
-
- 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
- A61F13/551—Packaging before or after use
- A61F13/5513—Packaging before or after use packaging of feminine sanitary napkins
- A61F13/55135—Packaging before or after use packaging of feminine sanitary napkins before use
- A61F13/5514—Packaging before or after use packaging of feminine sanitary napkins before use each item packaged single
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A sanitary napkin comprising a pair of longitudinally stretchable barrier flaps provided on either side thereof, said napkin being folded in three layers by folding back longitudinally opposite end sections thereof along lines extending transversely thereof as well as transversely extending across said barrier flaps, and said napkin being packed in an envelope.
Description
~ ~15~58-SANITARY NAPKIN
The present invention relates to a sanitary napkin and, more particularly, to a sanitary napkin or menstruation pad and the like 5 individually packaged in an envelope.
Conventional sanitary napkins generally are individually packaged in an envelope for supply to consumers. As disclosed, for example, in Japanese Laid-Open Utility Model Application No. 1993-93430, some napkins have along their laterally opposite sides barrier flaps with elastic 10 members under a tension exerted longitudinally of the napkin so that the flaps may be normally biased to contract. According to the technique disclosed in this reference, the flaps contract and rise on the skin-contacting surface of the napkin so as to form barriers preventing menstrual discharge from leaking out the sides as the napkin is worn and 15 curves inwardly longit~l(lin~lly of the napkin.
It is possible also for the existing napkin having the aforesaid barrier flaps as described above to be folded in two or three and then to package this individually for supply to consumers. Needless to say, the napkin is put in contact with the sensitive part of a wearer and therefore 20 the elasticity of the flaps must be moderate to avoid an ~.
21al7~8 apprehension that the flaps mightgouge into the skin of the sensitive part. However, the napkin is relatively rigid due to the presence of the liquid-absorbent core with a compressed fluff pulp layer and, if the elasticity of the flaps is excessively low, the rigidity thereof might overwhelm the elasticity to prevent the flaps from sufficiently contracting and rising on the skin-contacting surface of the napkin. In consequence, there is a risk that the flaps might be incapable of reliably preventing menstrual discharge from leaking out the sides when worn.
In view of the problem as mentioned above, it is a ~ principal object of the invention to solve this problem by folding the napkin in three along folding lines transversely extending across elastically stretchable sections of respective flaps so that a residual stress of folding may facilitate the elastically stretchable sections to contract even after the napkin has been unfolded to be worn by a wearer.
The object set forth above is achieved, according to the invention, by a sanitary napkin comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed between these two sheets and a pair of longitudinally stretchable barrier flaps provided on either 21al758 side of said napkin, and said napkin being folded in three layers by folding back longitudinally opposite end sections thereof along folding lines extending transversely of said napkin and then packaged in an envelope, wherein:
each of said barrier flaps comprlses a longitudinally stretchable section and non-stretchable sections extending continuously from longitudinally opposite ends of said stretchable section; and said stretchable section has a length of 37 to 70~ with respect to the entire length of said sanitary napkin and said folding lines transversely extend across said stretchable section.
With the sanitary napkin arranged in this manner, the stretchable section of each flap tends to contract as the napkin is picked out from the envelope and longitudinally unfolded. More specifically, the napkin folded in three layers has a residual stress of folding along the folding lines, under the effect of which, when the longitudinally intermediate section of the folded napkin is placed on a horizontal surface, the longitudinally opposite end sections of the napkin is unfolded in a slightly raised state. At the same time, the stretchable section of each flap contracts between its longitudinally opposite ends and risesabove the skin-contacting surface of the napkin.
Fig. 1 is a perspective view of an individually packaged sanitary napkin;
Fig. 2 is a plan view showing an unfolded sanitary napkin as partially broken away;
Fig. 3 is a sectional view taken along a line X - X in Fig. 2;
Fig. 4 is a perspective view of a sanitary napkin placed on a horizontal surface; and Fig. 5 is a sectional view taken along a line Y - Y in Fig. 4.
Referring to Fig. 1, a sanitary napkin 1 is formed longitudinally and folded in three layers and individually packaged in an envelope 2. Referring to Fig. 2, the sanitary napkin 1 is removed from the envelope 2 and horizontally unfolded. The napkin 1 comprises a liquid-permeable topsheet 3 made of a nonwoven fabric of thermoplastic synthetic fibers, a liquid-impermeable backsheet 4 made of a thermoplastic synthetic resin film and a liquid-absorbent core 5 made of a mixture of fluff pulp and super absorbent polymer powder and disposed between these two sheets 3, 4. The top- and back sheets 3, 4 are water-tightly bonded together in the area extending outward beyond the 21~17~8 ., _ -5-peripheral edge of the core 5 so as to define longitudinally opposite end flaps 6 having no stretchability and transversely opposite side flaps 8. A skin-contacting surface of the topsheet 3 in each side f-lap 8 carries thereon a barrier flap 10 having an intermediate section 24 adapted to be elasticallyraised against a wearer's skin, as will be described-below more in detail.
Longitudinally opposite (upper and lower as viewed in Fig. 2) end portions 14, 15 of the napkin 1 are folded inward along imaginary lines 12, 13 longitudinally dividing the napkin l into three substantially equal parts so that the end portions 14, 15 may be placed one upon another with the topsheet 3 lying inside, and the napkin l thus folded in three layers is individually packaged in the envelope 2 shown by a broken line in Fig. l. A flap 27 of the envelope 2 may be opened in the direction as indicated by an arrow A
to remove the napkin 1 therefrom.
The barrier flap 10 comprises an oblong sheet of liquid-impermeable or water-repellent nonwoven fabric made of thermoplastic synthetic fibers and an elastic member 20 adhesively bonded under tension to the inner side of a side edge 19 defined by folding said sheet. The barrier flap 10 is thus defined by the free side edge 19, a side edge l9A
21S17~8 .~
opposed to the free side edge 19 and bonded to the flap 8 by means of linearly applied hot melt adhesive 17, longitudinally opposite non-stretchable end sections 22, 23 fixed to the flap 8, and a stretchable intermediate section 24 extending between these longitudinally opposite end sections 22, 23. The flap 8 and the barrier flap 10 associated with this flap 8 are fused together by heat embossing them at the longitudinally opposite end sections 22, 23 of the barrier flap 10 to enhance their rigidity so that the end sections 22, 23 never contract even if these end sections contain therein the elastic member 20.
As will be apparent from Fig. 2, the lines 12, 13 along which the napkin 1 is folded in three layers transversely extend across the barrier flap lO at its intermediate section 24 preferably at a distance of lOmm or longer from the inner ends 22A, 23A of the longitudinally opposite end sections 22, 23, respectively.
Referring to Fig. 3, with the napkin l horizontally unfolded, the intermediate section 24 of the flap 10 is shown in a flat state.
Referring to Fig. 4, the napkin 1 has been removed from the envelope 2 and placed on a horizontal surface. Even after the napkin l has been unfolded, there remains alona ~he ~ ~ 5 ~ 7 5 8 lines 12, 13 residual stress of folding and, when a section extending between the folding lines 12, 13 is horizontally placed, the longihl(lin:~lly opposite end sections 14, 15 slightly rise on these folding lines 12, 13.
In this state of the napkin 1, distance in a straight line between the 5 respective inner ends 22A,- 23A of the longit~l(lin~lly opposite end sections 22, 23 of the flap 10 becomes shorter than in the napkin 1 horizontally unfolded (Fig. 2) and the intermediate section 24 of the flap 10 correspondingly contracts. Consequently, the side edge 19 and portion adjacent this side edge 19 rise on the skin-contacting surface of 10 the napkin 1.
Referring to Fig. 5, the flap 10 rises at its intermediate section as well as the portion adjacent this to form a barrier serving to prevent menstrual discharge from leaking out the sides. While the arrangement is shown with the side edge 19 lying on the outside and the side edge 15 l9A opposed to the side edge 19 to the inside, it is also possible to arrange so that the side edge 19 lies inside. The longit~l~lin~l dimension of the intermediate section 24 is preferably 37 to 70% and more preferably 40 to 65% with respect to the entire length of the napkin 1.
If less than 37%, the entire length of the intermediate section 24 will be 20 substanti~lly equal to or ~ ~.
, ~, ~ ~ S ~ 7 ~ 8 less than the distance between the folding lines 12, 13 and it will be very difficult or quite impossible to obtain the expected effect of folding the napkin 1. If 70% or longer, on the other hand, it will be required to bond the elastic member 20 to the flap 10 with a relatively high tension, 5 i.e., a relatively high stretching ratio to achieve sufficient contraction of the intermediate section 24 or this intermediate section 24 will slacken and often fail to rise. However, increased stretching ratio will disadvan-tageously impair softness and uncomfortably stim~ te the sensitive part of a wearer.
By utili7ing the residual stress of folding rem~ining in the napkin 1 along the lines 12, 13 to contract the intermediate section 24 of the barrier flap 10, an effective barrier can be reliably formed. In other words, the contractile force of the flap 10 can be minimi~ed sufficiently to soften the contact of the flap 10 with the sensitive part of a wearer and 15 thereby to improve comfortableness to wear.
For the individually packaged sanitary napkin 1 according to the invention, the top- and backsheets 3, 4 as well as the core 5 may be made of materials usually employed in this field of industry to make these members. Bonding or fixation of the respective members may be 20 achieved by using k~ ' 21~ 1 7 ~ 8 -~ g hot melt adhesive or heat seal technique, and such bonding technique may be used instead of the previously mentioned heat-embossing. It is also possible without departing from the scope of the invention to form the flap 10 by a rubber sheet or stretchable nonwoven fabric and thereby to eliminate use of the elastic member 20 or to limit the extent over which the elastic member 20 should be bonded to the intermediate section 24.
Though not shown, at least the core 5 may be provided on its top surface with compressed grooves each presenting a concave (preferably, V-shaped) cross-section extending along the respective folding lines 12, 13 not only to assist contraction of the barrier flap 10 but also to suppress diffusive permeation of menstrual discharge toward the longitudinally opposite end sections 14, 15. Furthermore, the intermediate section 16 may be also provided at least along its middle line with a similar compressed groove connected to said transverse grooves formed in the top surface of the core 5 to enhance the above-mentioned function.
According to the invention, the sanitary napkin 1 is folded in three layers along the lines transversely extending across the stretchable section of each barrier flap and individually packaged in the envelope, so the residual stress of folding functions to facilitate contraction of the stretchable section and thereby to reliably form the barrier preventing menstrual discharge from sideways leaking.
The present invention relates to a sanitary napkin and, more particularly, to a sanitary napkin or menstruation pad and the like 5 individually packaged in an envelope.
Conventional sanitary napkins generally are individually packaged in an envelope for supply to consumers. As disclosed, for example, in Japanese Laid-Open Utility Model Application No. 1993-93430, some napkins have along their laterally opposite sides barrier flaps with elastic 10 members under a tension exerted longitudinally of the napkin so that the flaps may be normally biased to contract. According to the technique disclosed in this reference, the flaps contract and rise on the skin-contacting surface of the napkin so as to form barriers preventing menstrual discharge from leaking out the sides as the napkin is worn and 15 curves inwardly longit~l(lin~lly of the napkin.
It is possible also for the existing napkin having the aforesaid barrier flaps as described above to be folded in two or three and then to package this individually for supply to consumers. Needless to say, the napkin is put in contact with the sensitive part of a wearer and therefore 20 the elasticity of the flaps must be moderate to avoid an ~.
21al7~8 apprehension that the flaps mightgouge into the skin of the sensitive part. However, the napkin is relatively rigid due to the presence of the liquid-absorbent core with a compressed fluff pulp layer and, if the elasticity of the flaps is excessively low, the rigidity thereof might overwhelm the elasticity to prevent the flaps from sufficiently contracting and rising on the skin-contacting surface of the napkin. In consequence, there is a risk that the flaps might be incapable of reliably preventing menstrual discharge from leaking out the sides when worn.
In view of the problem as mentioned above, it is a ~ principal object of the invention to solve this problem by folding the napkin in three along folding lines transversely extending across elastically stretchable sections of respective flaps so that a residual stress of folding may facilitate the elastically stretchable sections to contract even after the napkin has been unfolded to be worn by a wearer.
The object set forth above is achieved, according to the invention, by a sanitary napkin comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed between these two sheets and a pair of longitudinally stretchable barrier flaps provided on either 21al758 side of said napkin, and said napkin being folded in three layers by folding back longitudinally opposite end sections thereof along folding lines extending transversely of said napkin and then packaged in an envelope, wherein:
each of said barrier flaps comprlses a longitudinally stretchable section and non-stretchable sections extending continuously from longitudinally opposite ends of said stretchable section; and said stretchable section has a length of 37 to 70~ with respect to the entire length of said sanitary napkin and said folding lines transversely extend across said stretchable section.
With the sanitary napkin arranged in this manner, the stretchable section of each flap tends to contract as the napkin is picked out from the envelope and longitudinally unfolded. More specifically, the napkin folded in three layers has a residual stress of folding along the folding lines, under the effect of which, when the longitudinally intermediate section of the folded napkin is placed on a horizontal surface, the longitudinally opposite end sections of the napkin is unfolded in a slightly raised state. At the same time, the stretchable section of each flap contracts between its longitudinally opposite ends and risesabove the skin-contacting surface of the napkin.
Fig. 1 is a perspective view of an individually packaged sanitary napkin;
Fig. 2 is a plan view showing an unfolded sanitary napkin as partially broken away;
Fig. 3 is a sectional view taken along a line X - X in Fig. 2;
Fig. 4 is a perspective view of a sanitary napkin placed on a horizontal surface; and Fig. 5 is a sectional view taken along a line Y - Y in Fig. 4.
Referring to Fig. 1, a sanitary napkin 1 is formed longitudinally and folded in three layers and individually packaged in an envelope 2. Referring to Fig. 2, the sanitary napkin 1 is removed from the envelope 2 and horizontally unfolded. The napkin 1 comprises a liquid-permeable topsheet 3 made of a nonwoven fabric of thermoplastic synthetic fibers, a liquid-impermeable backsheet 4 made of a thermoplastic synthetic resin film and a liquid-absorbent core 5 made of a mixture of fluff pulp and super absorbent polymer powder and disposed between these two sheets 3, 4. The top- and back sheets 3, 4 are water-tightly bonded together in the area extending outward beyond the 21~17~8 ., _ -5-peripheral edge of the core 5 so as to define longitudinally opposite end flaps 6 having no stretchability and transversely opposite side flaps 8. A skin-contacting surface of the topsheet 3 in each side f-lap 8 carries thereon a barrier flap 10 having an intermediate section 24 adapted to be elasticallyraised against a wearer's skin, as will be described-below more in detail.
Longitudinally opposite (upper and lower as viewed in Fig. 2) end portions 14, 15 of the napkin 1 are folded inward along imaginary lines 12, 13 longitudinally dividing the napkin l into three substantially equal parts so that the end portions 14, 15 may be placed one upon another with the topsheet 3 lying inside, and the napkin l thus folded in three layers is individually packaged in the envelope 2 shown by a broken line in Fig. l. A flap 27 of the envelope 2 may be opened in the direction as indicated by an arrow A
to remove the napkin 1 therefrom.
The barrier flap 10 comprises an oblong sheet of liquid-impermeable or water-repellent nonwoven fabric made of thermoplastic synthetic fibers and an elastic member 20 adhesively bonded under tension to the inner side of a side edge 19 defined by folding said sheet. The barrier flap 10 is thus defined by the free side edge 19, a side edge l9A
21S17~8 .~
opposed to the free side edge 19 and bonded to the flap 8 by means of linearly applied hot melt adhesive 17, longitudinally opposite non-stretchable end sections 22, 23 fixed to the flap 8, and a stretchable intermediate section 24 extending between these longitudinally opposite end sections 22, 23. The flap 8 and the barrier flap 10 associated with this flap 8 are fused together by heat embossing them at the longitudinally opposite end sections 22, 23 of the barrier flap 10 to enhance their rigidity so that the end sections 22, 23 never contract even if these end sections contain therein the elastic member 20.
As will be apparent from Fig. 2, the lines 12, 13 along which the napkin 1 is folded in three layers transversely extend across the barrier flap lO at its intermediate section 24 preferably at a distance of lOmm or longer from the inner ends 22A, 23A of the longitudinally opposite end sections 22, 23, respectively.
Referring to Fig. 3, with the napkin l horizontally unfolded, the intermediate section 24 of the flap 10 is shown in a flat state.
Referring to Fig. 4, the napkin 1 has been removed from the envelope 2 and placed on a horizontal surface. Even after the napkin l has been unfolded, there remains alona ~he ~ ~ 5 ~ 7 5 8 lines 12, 13 residual stress of folding and, when a section extending between the folding lines 12, 13 is horizontally placed, the longihl(lin:~lly opposite end sections 14, 15 slightly rise on these folding lines 12, 13.
In this state of the napkin 1, distance in a straight line between the 5 respective inner ends 22A,- 23A of the longit~l(lin~lly opposite end sections 22, 23 of the flap 10 becomes shorter than in the napkin 1 horizontally unfolded (Fig. 2) and the intermediate section 24 of the flap 10 correspondingly contracts. Consequently, the side edge 19 and portion adjacent this side edge 19 rise on the skin-contacting surface of 10 the napkin 1.
Referring to Fig. 5, the flap 10 rises at its intermediate section as well as the portion adjacent this to form a barrier serving to prevent menstrual discharge from leaking out the sides. While the arrangement is shown with the side edge 19 lying on the outside and the side edge 15 l9A opposed to the side edge 19 to the inside, it is also possible to arrange so that the side edge 19 lies inside. The longit~l~lin~l dimension of the intermediate section 24 is preferably 37 to 70% and more preferably 40 to 65% with respect to the entire length of the napkin 1.
If less than 37%, the entire length of the intermediate section 24 will be 20 substanti~lly equal to or ~ ~.
, ~, ~ ~ S ~ 7 ~ 8 less than the distance between the folding lines 12, 13 and it will be very difficult or quite impossible to obtain the expected effect of folding the napkin 1. If 70% or longer, on the other hand, it will be required to bond the elastic member 20 to the flap 10 with a relatively high tension, 5 i.e., a relatively high stretching ratio to achieve sufficient contraction of the intermediate section 24 or this intermediate section 24 will slacken and often fail to rise. However, increased stretching ratio will disadvan-tageously impair softness and uncomfortably stim~ te the sensitive part of a wearer.
By utili7ing the residual stress of folding rem~ining in the napkin 1 along the lines 12, 13 to contract the intermediate section 24 of the barrier flap 10, an effective barrier can be reliably formed. In other words, the contractile force of the flap 10 can be minimi~ed sufficiently to soften the contact of the flap 10 with the sensitive part of a wearer and 15 thereby to improve comfortableness to wear.
For the individually packaged sanitary napkin 1 according to the invention, the top- and backsheets 3, 4 as well as the core 5 may be made of materials usually employed in this field of industry to make these members. Bonding or fixation of the respective members may be 20 achieved by using k~ ' 21~ 1 7 ~ 8 -~ g hot melt adhesive or heat seal technique, and such bonding technique may be used instead of the previously mentioned heat-embossing. It is also possible without departing from the scope of the invention to form the flap 10 by a rubber sheet or stretchable nonwoven fabric and thereby to eliminate use of the elastic member 20 or to limit the extent over which the elastic member 20 should be bonded to the intermediate section 24.
Though not shown, at least the core 5 may be provided on its top surface with compressed grooves each presenting a concave (preferably, V-shaped) cross-section extending along the respective folding lines 12, 13 not only to assist contraction of the barrier flap 10 but also to suppress diffusive permeation of menstrual discharge toward the longitudinally opposite end sections 14, 15. Furthermore, the intermediate section 16 may be also provided at least along its middle line with a similar compressed groove connected to said transverse grooves formed in the top surface of the core 5 to enhance the above-mentioned function.
According to the invention, the sanitary napkin 1 is folded in three layers along the lines transversely extending across the stretchable section of each barrier flap and individually packaged in the envelope, so the residual stress of folding functions to facilitate contraction of the stretchable section and thereby to reliably form the barrier preventing menstrual discharge from sideways leaking.
Claims (4)
1. A sanitary napkin comprising:
a liquid-permeable top sheet;
a liquid-impermeable back sheet;
a liquid-absorbent core disposed between said top and said back sheet;
first and second longitudinally stretchable barrier flaps alongside said core at first and second sides, respectively, of said sanitary napkin;
said first and second barrier flaps being affixed along an inner edge to said top sheet, an outer edge of said first and second barrier flaps being free to rise inwardly from said stop sheet;
first and second transverse fold lines on said sanitary napkin permitting upper and lower end portions of said sanitary napkin to be folded over an intermediate portion thereof;
longitudinally stretchable portions of said barrier flaps being from about 37 to about 70 percent of a length of said sanitary napkin;
said first and second fold lines extending across longitudinally stretchable portions of said first and second barrier flaps; and said longitudinally stretchable portions being short enough, relative to length of said napkin, to soften contact of said first and second barrier flaps with a sensitive part of a wearer, thereby improving wearer comfort.
a liquid-permeable top sheet;
a liquid-impermeable back sheet;
a liquid-absorbent core disposed between said top and said back sheet;
first and second longitudinally stretchable barrier flaps alongside said core at first and second sides, respectively, of said sanitary napkin;
said first and second barrier flaps being affixed along an inner edge to said top sheet, an outer edge of said first and second barrier flaps being free to rise inwardly from said stop sheet;
first and second transverse fold lines on said sanitary napkin permitting upper and lower end portions of said sanitary napkin to be folded over an intermediate portion thereof;
longitudinally stretchable portions of said barrier flaps being from about 37 to about 70 percent of a length of said sanitary napkin;
said first and second fold lines extending across longitudinally stretchable portions of said first and second barrier flaps; and said longitudinally stretchable portions being short enough, relative to length of said napkin, to soften contact of said first and second barrier flaps with a sensitive part of a wearer, thereby improving wearer comfort.
2. A sanitary napkin according to claim 1, wherein said first and second fold lines are spaced at least 10 mm from ends of said longitudinally stretchable section.
3. A sanitary napkin according to claim 1, wherein:
said napkin includes first and second non-stretchable side flaps at least along outer side edges of said first and second sides;
said inner edge of said first and second barrier flaps affixed to said first and second non-stretchable side flaps, respectively.
said napkin includes first and second non-stretchable side flaps at least along outer side edges of said first and second sides;
said inner edge of said first and second barrier flaps affixed to said first and second non-stretchable side flaps, respectively.
4. A sanitary napkin according to claim 1, wherein at least said core includes a plurality of compressed grooves along each of said first and second fold lines.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-137376 | 1994-06-20 | ||
| JP13737694A JP3169304B2 (en) | 1994-06-20 | 1994-06-20 | Sanitary napkins in individual bags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2151758A1 CA2151758A1 (en) | 1995-12-21 |
| CA2151758C true CA2151758C (en) | 1999-05-04 |
Family
ID=15197245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002151758A Expired - Fee Related CA2151758C (en) | 1994-06-20 | 1995-06-14 | Sanitary napkin |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0688549B2 (en) |
| JP (1) | JP3169304B2 (en) |
| KR (1) | KR960000466U (en) |
| CN (1) | CN2245438Y (en) |
| AU (1) | AU698697C (en) |
| CA (1) | CA2151758C (en) |
| DE (1) | DE59509675D1 (en) |
| MY (1) | MY118120A (en) |
| TW (1) | TW311447U (en) |
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|---|---|---|---|---|
| US6475199B1 (en) * | 1998-04-27 | 2002-11-05 | The Procter & Gamble Company | Method of individually packaging a three dimensionally-shaped absorbent article |
| BR9901047A (en) | 1999-04-07 | 2000-10-17 | Johnson & Johnson Ind Com | Absorbent article |
| JP4953265B2 (en) * | 2001-07-16 | 2012-06-13 | 大王製紙株式会社 | Absorbent articles |
| JP4716629B2 (en) * | 2001-09-27 | 2011-07-06 | 花王株式会社 | Absorbent articles |
| SE0300527D0 (en) * | 2003-02-28 | 2003-02-28 | Sca Hygiene Prod Ab | Packaging covers for single-piece absorbent articles |
| US20050131371A1 (en) * | 2003-12-10 | 2005-06-16 | Fell David A. | Fold line resistant absorbent articles |
| US7708727B2 (en) | 2006-04-19 | 2010-05-04 | Kimberly-Clark Worldwide, Inc. | Compact-folded article with wrap layer |
| US7427277B2 (en) | 2006-04-19 | 2008-09-23 | Kimberly-Clark Worldwide, Inc. | Compact-folded article and pouch |
| US8162911B2 (en) | 2005-10-03 | 2012-04-24 | Kimberly-Clark Worldwide, Inc. | Compact folded absorbent article |
| US7824470B2 (en) | 2006-01-18 | 2010-11-02 | United Technologies Corporation | Method for enhancing mass transport in fuel deoxygenation systems |
| US8231591B2 (en) * | 2006-04-21 | 2012-07-31 | Kimberly-Clark Worldwide, Inc. | Absorbent article with lengthwise, compact-fold |
| WO2008029558A1 (en) * | 2006-09-04 | 2008-03-13 | Kao Corporation | Absorbent article |
| JP5030510B2 (en) * | 2006-09-04 | 2012-09-19 | 花王株式会社 | Absorbent article and its packaging structure |
| JP4757180B2 (en) * | 2006-11-30 | 2011-08-24 | 花王株式会社 | Absorbent articles |
| JP5570121B2 (en) * | 2006-12-08 | 2014-08-13 | ユニ・チャーム株式会社 | Method for producing elastic composite sheet and absorbent article |
| CN101732136B (en) * | 2008-11-13 | 2014-07-30 | 花王株式会社 | Single package of absorbent article |
| IT1403062B1 (en) * | 2010-06-15 | 2013-10-04 | Gdm Spa | METHOD OF FOLDING HYGIENIC ABSORBENTS. |
| JP5947517B2 (en) * | 2011-10-20 | 2016-07-06 | 花王株式会社 | Absorbent articles |
| JP5843598B2 (en) * | 2011-12-15 | 2016-01-13 | 花王株式会社 | Absorbent articles for women |
| WO2016121987A1 (en) * | 2015-01-30 | 2016-08-04 | 大王製紙株式会社 | Absorbent article having stretchable portion |
| JP6429757B2 (en) * | 2015-09-30 | 2018-11-28 | 大王製紙株式会社 | Absorbent article having stretchable part |
| KR101828060B1 (en) * | 2016-07-04 | 2018-02-09 | 정호진 | Head for mixer using three-dimensional printing and method for preparing the same |
| JP2019047891A (en) * | 2017-09-08 | 2019-03-28 | 王子ホールディングス株式会社 | Folding device and apparatus for manufacturing absorbent article |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8202090L (en) * | 1982-04-01 | 1983-10-02 | Moelnlycke Ab | ABSORBING PRODUCT |
| US4556146A (en) † | 1984-02-08 | 1985-12-03 | The Procter & Gamble Company | Individually packaged disposable absorbent article |
| US4743245A (en) * | 1985-03-01 | 1988-05-10 | Kimberly-Clark Corporation | Labial sanitary pad |
| BR8601228A (en) † | 1986-03-19 | 1987-11-03 | Johnson & Johnson Sa | ANATOMIC ABSORBENT |
| US4770657A (en) * | 1986-05-28 | 1988-09-13 | Kimberly-Clark Corporation | Three-dimensional shaped feminine pad with absorbent in the elasticized edges |
| SE453720B (en) * | 1986-07-17 | 1988-02-29 | Moelnlycke Ab | PUT IN CONNECTION WITH THE PREPARATION, VIKING AN ABSORBING disposable item, such as a diaper, for packaging condition |
| US4772282A (en) * | 1986-10-31 | 1988-09-20 | Kimberly-Clark Corporation | Draw-string absorbent device including means for packaging and disposal |
| BR8900666A (en) † | 1989-02-15 | 1990-10-02 | Johnson & Johnson Sa | DISPOSABLE CATAMENIAL ABOSERVENT |
| US5234422A (en) * | 1991-12-20 | 1993-08-10 | The Procter & Gamble Company | Elasticized sanitary napkin |
| KR100266194B1 (en) † | 1992-03-31 | 2000-09-15 | 데이비드 엠 모이어 | Sanitary napkin having barrier means |
| JPH0592430U (en) | 1992-05-22 | 1993-12-17 | 俊幸 欠田 | Spherical engine |
| US5295988A (en) * | 1992-09-04 | 1994-03-22 | The Procter & Gamble Company | Individually wrapped disposable absorbent article which becomes elasticized when unwrapped |
| USH1363H (en) * | 1992-12-22 | 1994-10-04 | Leeker; Karen K. | Fold and wrap package for catamenial pads providing convenient disposal |
-
1994
- 1994-06-20 JP JP13737694A patent/JP3169304B2/en not_active Expired - Lifetime
-
1995
- 1995-06-13 TW TW084208106U patent/TW311447U/en unknown
- 1995-06-14 CA CA002151758A patent/CA2151758C/en not_active Expired - Fee Related
- 1995-06-16 AU AU21746/95A patent/AU698697C/en not_active Expired
- 1995-06-19 KR KR2019950013789U patent/KR960000466U/en not_active Application Discontinuation
- 1995-06-20 MY MYPI95001663A patent/MY118120A/en unknown
- 1995-06-20 CN CN95215242U patent/CN2245438Y/en not_active Expired - Lifetime
- 1995-06-20 EP EP95109533A patent/EP0688549B2/en not_active Expired - Lifetime
- 1995-06-20 DE DE59509675T patent/DE59509675D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR960000466U (en) | 1996-01-17 |
| AU698697B2 (en) | 1998-11-05 |
| EP0688549A3 (en) | 1998-10-21 |
| CN2245438Y (en) | 1997-01-22 |
| EP0688549A2 (en) | 1995-12-27 |
| CA2151758A1 (en) | 1995-12-21 |
| EP0688549B2 (en) | 2006-03-01 |
| MY118120A (en) | 2004-09-30 |
| EP0688549B1 (en) | 2001-10-10 |
| JPH08660A (en) | 1996-01-09 |
| AU2174695A (en) | 1996-01-04 |
| JP3169304B2 (en) | 2001-05-21 |
| TW311447U (en) | 1997-07-21 |
| AU698697C (en) | 2004-11-25 |
| DE59509675D1 (en) | 2001-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150615 |