Applications for substance encapsulating laminate web

• US 6,716,498 B2
• Filed: 06/21/2001
• Issued: 04/06/2004
• Est. Priority Date: 12/21/1999
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Kaminiski, Anneke Margaret, Koehler, Deborah Adamo, Curro, John Joseph
• Primary Examiner(s): Cole, Elizabeth M.
• Assistant Examiner(s): Pierce, Jeremy R.
• Application Number:
  US09/886,830
• Publication Number:
  US 20020034913A1
• Time in Patent Office: 1,020 Days
• Field of Search: 428/198, 428/138, 428/34.8, 428/36.1, 428/72, 442/370, 442/378, 442/385, 442/392, 442/394, 442/412
• US Class Current: 428/34.8
• CPC Class Codes: A47L 1/15 Cloths, sponges, pads, or the like, e.g. containing cleaning agents
• CPC Class Codes: A47L 13/17 containing cleaning agents A47L13/19 takes precedence ; chemical compositions C11D17/049
• CPC Class Codes: A61F 13/512 characterised by its apertures, e.g. perforations
• CPC Class Codes: A61F 13/51394 creating a visual effect, e.g. having a printed or coloured topsheet, printed or coloured sub-layer but being visible from the topsheet, other than embossing for purposes of bonding, wicking, acquisition, leakage-prevention
• CPC Class Codes: A61F 13/53 characterised by the absorbing medium A61F13/20 takes precedence
• CPC Class Codes: A61F 13/537 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer A61F13/538 takes precedence
• CPC Class Codes: A61F 13/539 characterised by the connection of the absorbent layers with each other or with the outer layers
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: B08B 1/143 Wipes
• CPC Class Codes: B26F 1/20 with tools carried by a rotating drum or similar support B26F1/22 takes precedence
• CPC Class Codes: B26F 1/24 Perforating by needles or pins
• CPC Class Codes: B29C 2793/0045 Perforating
• CPC Class Codes: B29C 55/023 using multilayered plates or sheets
• CPC Class Codes: B29C 55/18 by squeezing between surfaces, e.g. rollers
• CPC Class Codes: B29C 59/007 Forming single grooves or ribs, e.g. tear lines, weak spots by moulding B29C37/0057; folding lines B29C53/06; in metal articles B21D17/00; by cutting B26D3/08
• CPC Class Codes: B29C 59/04 using rollers or endless belts
• CPC Class Codes: B29C 65/02 by heating, with or without pressure
• CPC Class Codes: B29C 65/18 : using heated tools
• CPC Class Codes: B29C 65/7437 : the tool being a perforating tool perforating as mechanical pre-treatment B29C66/02242
• CPC Class Codes: B29C 66/1122 : Single lap to lap joints, i.e. overlap joints B29C66/45, B29C66/472, B29C66/52272 take precedence
• CPC Class Codes: B29C 66/21 : said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
• CPC Class Codes: B29C 66/436 : Joining sheets for making articles comprising cushioning or padding materials, the weld being performed through the cushioning material, e.g. car seats joining through openings B29C66/304
• CPC Class Codes: B29C 66/45 : Joining of substantially the whole surface of the articles methods or apparatus for laminating B32B37/00
• CPC Class Codes: B29C 66/4722 : Fixing strips to surfaces other than edge faces fixing strips to edge faces B29C63/0026
• CPC Class Codes: B29C 66/71 : characterised by the composition of the plastics material of the parts to be joined welding bar compositions B29C65/125
• CPC Class Codes: B29C 66/723 : being multi-layered B29C66/7292, B29C66/72941 take precedence
• CPC Class Codes: B29C 66/727 : being porous, e.g. foam
• CPC Class Codes: B29C 66/7294 : Non woven mats, e.g. felt
• CPC Class Codes: B29C 66/7392 : characterised by the material of at least one of the parts being a thermoplastic
• CPC Class Codes: B29C 66/7394 : characterised by the material of at least one of the parts being a thermoset
• CPC Class Codes: B29C 66/81433 : being toothed, i.e. comprising several teeth or pins comprising a single tooth B29C66/81429, or being patterned
• CPC Class Codes: B29C 66/83413 : cooperating rollers, cylinders or drums
• CPC Class Codes: B29C 66/83511 : jaws mounted on rollers, cylinders or drums
• CPC Class Codes: B29K 2023/00 : Use of polyalkenes or derivatives thereof as moulding material
• CPC Class Codes: B29K 2023/04 : Polymers of ethylene
• CPC Class Codes: B29K 2023/06 : PE, i.e. polyethylene
• CPC Class Codes: B29K 2023/10 : Polymers of propylene
• CPC Class Codes: B29K 2023/12 : PP, i.e. polypropylene
• CPC Class Codes: B29K 2105/0854 : in the form of a non-woven mat
• CPC Class Codes: B29K 2995/0068 : Permeability to liquids; Adsorption
• CPC Class Codes: B29L 2009/00 : Layered products
• CPC Class Codes: B29L 2031/4878 : Diapers, napkins
• CPC Class Codes: B29L 2031/737 : Articles provided with holes, e.g. grids, sieves nets B29L2028/00
• CPC Class Codes: B29L 2031/7374 : Slotted
• CPC Class Codes: B32B 15/04 : comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042
• CPC Class Codes: B32B 2037/0092 : in which absence of adhesives is explicitly presented as an advantage
• CPC Class Codes: B32B 2038/0028 : Stretching, elongating
• CPC Class Codes: B32B 2038/047 : Perforating
• CPC Class Codes: B32B 2305/20 : in the form of a non-woven mat
• CPC Class Codes: B32B 2307/202 : Conductive
• CPC Class Codes: B32B 2307/204 : Di-electric
• CPC Class Codes: B32B 2307/51 : Elastic
• CPC Class Codes: B32B 27/06 : as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08
• CPC Class Codes: B32B 3/266 : characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 37/12 : characterised by using adhesives
• CPC Class Codes: B32B 37/144 : using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding constructional features for tensioning B32B38/1825
• CPC Class Codes: B32B 38/0004 : Cutting, tearing or severing, e.g. bursting; Cutter details cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence
• CPC Class Codes: B32B 38/0012 : Mechanical treatment, e.g. roughening, deforming, stretching
• CPC Class Codes: B32B 38/04 : Punching, slitting or perforating
• CPC Class Codes: B32B 5/04 : characterised by a layer being specifically extensible by reason of its structure or arrangement , e.g. by reason of the chemical nature of the fibres or filaments
• CPC Class Codes: B32B 5/26 : another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: B32B 7/04 : Interconnection of layers
• CPC Class Codes: B65D 75/30 : Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
• CPC Class Codes: C11D 17/049 : Cleaning or scouring pads; Wipes
• CPC Class Codes: H01B 7/0838 : Parallel wires, sandwiched between two insulating layers
• CPC Class Codes: Y10T 428/1324 : Flexible food casing [e.g., sausage type, etc.]
• CPC Class Codes: Y10T 428/1362 : Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
• CPC Class Codes: Y10T 428/234 : including elements cooperating to form cells
• CPC Class Codes: Y10T 428/24041 : Discontinuous or differential coating, impregnation, or bond
• CPC Class Codes: Y10T 428/24331 : including nonapertured component
• CPC Class Codes: Y10T 428/24826 : Spot bonds connect components
• CPC Class Codes: Y10T 442/2525 : Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]
• CPC Class Codes: Y10T 442/659 : Including an additional nonwoven fabric
• CPC Class Codes: Y10T 442/671 : Multiple nonwoven fabric layers composed of the same polymeric strand or fiber material

Abstract

A substance encapsulation system capable of being apertured under a tensioning force comprises a first web and a second web. A powdered, granular, particulate, or gel substance can be disposed between the first and second webs. Upon application of a sufficient force having a vector component parallel to the transverse axis, the bond site fractures to form a corresponding aperture to facilitate exposure of the substance. Alternatively, a central layer may be disposed between at least a portion of the first and second webs. The central layer may carry a substance to be exposed or the central layer may be a dissimilar material from the first and second webs.

Claims

1. A substance encapsulation system capable of being apertured under a tensioning force, said system comprising:

(a) a first prebonded web and a second prebonded web, said first and second prebonded webs joined to one another in a face-to-face relationship by a plurality of bond sites, each bond site defining a discrete, noncontinuous elongated melt weakened region having an aspect ratio of at least about 3, said bond site having a longitudinal axis oriented in a first direction and a transverse axis oriented in a second direction orthogonal to said first direction;

(b) an edible substance selected from the group consisting of flavoring ingredients, food colorings, sweeteners, nutrients, and combinations thereof, disposed between said first and second prebonded webs; and

(c) wherein upon application of a sufficient force having a vector component parallel to said transverse axis, said bond site fractures to form a corresponding aperture to facilitate exposure of said substance.

7. The substance encapsulation system of claim 1, wherein the bond sites have a length of less than about 0.2 inches and a width of less than about 0.02 inches.

8. The substance encapsulation system of claim 1, wherein the substance is continuously disposed between said first and second prebonded webs.

19. The substance encapsulation system of claim 1 wherein the bond sites are regularly repeating.

2. A substance encapsulation system capable of being apertured under a tensioning force, said system comprising:

(a) a first prebonded web and a second prebonded web, said first and second prebonded webs joined to one another in a face-to-face relationship by a plurality of bond sites, each bond site defining a discrete, noncontinuous elongated melt weakened region having an aspect ratio of at least about 3, said bond site having a longitudinal axis oriented in a first direction and a transverse axis oriented in a second direction orthogonal to said first direction;

(b) an agricultural substance selected from the group consisting of seeds, fertilizers, insecticides, and combinations thereof, disposed between said first and second prebonded webs; and

(c) wherein upon application of a sufficient force having a vector component parallel to said transverse axis, said bond site fractures to form a corresponding aperture to facilitate exposure of said substance.

9. The substance encapsulation system of claim 2, wherein the bond sites have a length of less than about 0.2 inches and a width of less than about 0.02 inches.

10. The substance encapsulation system of claim 2, wherein the substance is continuously disposed between said first and second prebonded webs.

3. A substance encapsulation system capable of being apertured under a tensioning force, said system comprising:

(a) a first prebonded web and a second prebonded web, said first and second prebonded webs joined to one another in a face-to-face relationship by a plurality of bond sites, each bond site defining a discrete, noncontinuous elongated melt weakened region having an aspect ratio of at least about 3, said bond site having a longitudinal axis oriented in a first direction and a transverse axis oriented in a second direction orthogonal to said first direction;

(b) an odor-absorbing substance disposed between said first and second prebonded webs; and

(c) wherein upon application of a sufficient force having a vector component parallel to said transverse axis, said bond site fractures to form a corresponding aperture to facilitate exposure of said substance.

11. The substance encapsulation system of claim 3, wherein the bond sites have a length of less than about 0.2 inches and a width of less than about 0.02 inches.

12. The substance encapsulation system of claim 3, wherein the substance is continuously disposed between said first and second prebonded webs.

4. A substance encapsulation system comprising:

(a) a first prebonded web and a second prebonded web, said first and second prebonded webs joined to one another in a face-to-face relationship by a plurality of bond sites, each bond site defining a discrete, noncontinuous elongated melt weakened region having an aspect ratio of at least about 3; and

(b) a central layer being disposed between at least a portion of said first and second prebonded webs, said central layer containing an edible substance selected from the group consisting of flavoring ingredients, food colorings, sweeteners, nutrients, and combinations thereof, to be exposed.

13. The substance encapsulation system of claim 4, wherein the bond sites have a length of less than about 0.2 inches and a width of less than about 0.02 inches.

14. The substance encapsulation system of claim 4, wherein the central layer is continuously disposed between at least a portion of said first and second prebonded webs.

20. The substance encapsulation system of claim 4 wherein the bond sites are regularly repeating.

5. A substance encapsulation system comprising:

(a) a first prebonded web and a second prebonded web, said first and second prebonded webs joined to one another in a face-to-face relationship by a plurality of bond sites, each bond site defining a discrete, noncontinuous elongated melt weakened region having an aspect ratio of at least about 3; and

(b) a central layer being disposed between at least a portion of said first and second prebonded webs, said central layer containing an agricultural substance selected from the group consisting of seeds, fertilizers, insecticides, and combinations thereof, to be exposed.

15. The substance encapsulation system of claim 5, wherein the bond sites have a length of less than about 0.2 inches and a width of less than about 0.02 inches.

16. The substance encapsulation system of claim 5, wherein the central layer is continuously disposed between at least a portion of said first and second prebonded webs.

6. A substance encapsulation system comprising:

(a) a first prebonded web and a second prebonded web, said first and second prebonded webs joined to one another in a face-to-face relationship by a plurality of bond sites, each bond site defining a discrete, noncontinuous elongated melt weakened region having an aspect ratio of at least about 3; and

(b) a central layer being disposed between at least a portion of said first and second prebonded webs, said central layer containing an odor-absorbing substance to be exposed.

17. The substance encapsulation system of claim 6, wherein the bond sites have a length of less than about 0.2 inches and a width of less than about 0.02 inches.

18. The substance encapsulation system of claim 6, wherein the central layer is continuously disposed between at least a portion of said first and second prebonded webs.