Source: http://www.google.com/patents/US7766890?dq=7,682,496
Timestamp: 2016-06-27 20:46:56
Document Index: 658883671

Matched Legal Cases: ['Application No. 2001', 'Application No. 2001', 'Application No. 2008', 'Application No. 2001', 'Application No. 2001', 'Application No. 10', 'Application No. 10']

Patent US7766890 - Paper diaper - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA disposable diaper includes a hook and loop fastener which includes: (i) a plurality of hook components, which are fixed in place on both lateral sides of a rear side of the disposable diaper, and (ii) a hook receiving component that is fixed in place at a belly side of the disposable diaper. The hook...http://www.google.com/patents/US7766890?utm_source=gb-gplus-sharePatent US7766890 - Paper diaperAdvanced Patent SearchPublication numberUS7766890 B2Publication typeGrantApplication numberUS 10/469,791PCT numberPCT/JP2002/001905Publication dateAug 3, 2010Filing dateMar 1, 2002Priority dateMar 3, 2001Fee statusPaidAlso published asUS20040153046, WO2002069873A1Publication number10469791, 469791, PCT/2002/1905, PCT/JP/2/001905, PCT/JP/2/01905, PCT/JP/2002/001905, PCT/JP/2002/01905, PCT/JP2/001905, PCT/JP2/01905, PCT/JP2001905, PCT/JP2002/001905, PCT/JP2002/01905, PCT/JP2002001905, PCT/JP200201905, PCT/JP201905, US 7766890 B2, US 7766890B2, US-B2-7766890, US7766890 B2, US7766890B2InventorsKazunori Ito, Hiroshi Ono, Tomoka KamotoOriginal AssigneeDaio Paper Corporation, Daio Paper Converting Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (43), Non-Patent Citations (8), Referenced by (15), Classifications (8), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetPaper diaper
However, in the conventional hook receiving component of the conventional hook and loop fastener, there was a problem that the targets (not illustrated) on the surface of the base material section 5 b were dispersedly hidden by a number of loops 5 a, 5 a, . . . on the surface of the base material section as shown in FIG. 11 mainly by “the bulkiness of the fiber comprising the loops”, although a character or a designed pattern was arranged as a target, the target could not be clearly observed.
The inventors herein have thoroughly studied and found that there are mainly “the thick bulky height of a fiber comprising the loop”, “the density of the number of the loops (number of loops per unit area)” and “the ordinality of loop disposition” as the factors which affect the easiness of looking the target on the base material portion in the hook receiving component having the loops. The findings are sequentially described.
In the first place, it is considered that “the thick bulky height of a fiber comprising the loop” mostly affect the easiness of looking the target. When the fiber comprising the loops is the crimp-treated filament yarn as in a conventionally used one (see the enlarged portion of FIG. 11), the masked area is excessive and the lower target can be hardly observed. Although the thickness of the loop can not be primarily determined since it is a filament yarn, in a conventional crimp-treated article, the thickness of almost all loops are 400 μm or more.
Next, for “density of the number of loops”, when it mostly exceeds 60 pcs/cm2, particularly, when it exceeds 50 pcs/cm2, the masking action becomes conspicuous in case of visually observing the loops. In addition, when the loops are too scarce, the loops only become conspicuous, the lower target tends to be hardly observed. Therefore, the density of the number is determined to be 10 pcs/cm2, preferably 30 pcs/cm2 and more preferably 40 pcs/cm2 or more.
Further, “the ordinality of loop disposition” is also important. When many of loops 5 a, 5 a, . . . are randomly disposed as shown in FIG. 11, they tend to be more hardly observed than in an actual masking ratio. However, when loops 5 a, 5 a, . . . are regularly disposed as shown in FIG. 10, it is easy to assume the masked portions, and a user feels easier to see them than in an actual masking ratio. Concretely, it is found that when 60 to 70% or more of many loops, particularly, 80 to 90% or more is observed in a form as if they were swollen and protruded toward a predetermined same direction as the base material section is viewed from the top, a user feels easier to see them than in the actual masking ratio.
In addition, “the length of a loop” is related to “the ordinality of loop disposition”, when the length of one loop exceeds 3 mm, particularly 2 mm, the masking action by itself is conspicuous when visually inspected. In addition, when the loop becomes longer, the masking area by itself becomes larger and the binding power generated by fixing to the base material section does not act on the entire loop. Thus, the fibers are unbound and the loop becomes thicker as mentioned above, or the loop is irregularly distorted by its twisting or the like because the free portion becomes longer. Accordingly, the loops are irregularly disposed as a whole and it may be more hardly observed than in the actual masking ratio.
On the other hand, as the front sheet in the actual disposable diaper, the hook receiving component comprising the base material section 5 b or 15 b on which the target is arranged, a number of loops 5 a, 5 a, . . . or 15 a, 15 a, . . . which are fixed on the surface of this base material section 5 b or 15 b, and a grid net-like body 20 or 120 where a number of the loops 5 a, 5 a, . . . or 15 a, 15 a, . . . are assembled so as to allow a number of the loops 5 a, 5 a, . . . or 15 a, 15 a, . . . to be swollen and protruded is used. Thus, in the form of supplementing the adhesion of the loops 5 a, 5 a, . . . or 15 a, 15 a, . . . to the base material sections 5 b or 15 b by the grid net-like portions, “thick bulky height of the longitudinal fiber portion 5 c or 15 c and lateral fiber portion 5 d or 15 d” or “the longitudinal fiber potion spacing and lateral fiber portion spacing” in the grid net-like material also affect the easiness of looking the target of the base material section 5 b or 15 b. The affection of the latter is the same as in the density of the number of loops.
The “shear strength test method” and the “peel strength test method” described in the present invention are defined as follows:
The relevant shear force and peel force are each measured with the following “shear strength test method” and “peel strength test method”.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS1908328 *Jul 16, 1930May 9, 1933Dreyfus CamilleFabric containing organic derivative of cellulose yarnUS4704238Nov 15, 1985Nov 3, 1987Mitsubishi Petrochemical Co., Ltd.Process for the production of air-permeable filmsUS4739635Jul 8, 1987Apr 26, 1988Douglas L. HeydtConnector assembly and composite thereforUS4902553 *Nov 18, 1988Feb 20, 1990Minnesota Mining And Manufacturing CompanyDisposable productsUS4973326 *Nov 30, 1987Nov 27, 1990Minnesota Mining And Manufacturing CompanyDisposable diaper with improved fastener attachmentUS5392498 *Dec 10, 1992Feb 28, 1995The Proctor & Gamble CompanyNon-abrasive skin friendly mechanical fastening systemUS5403302 *Sep 30, 1992Apr 4, 1995Kimberly-Clark CorporationFastening system for disposable diaper with disposability featureUS5473800 *Mar 29, 1994Dec 12, 1995Magictape Co., Ltd.Separable fastening componentUS5683634Oct 6, 1995Nov 4, 1997Mitsubishi Chemical CorporationProcess of making porous films or sheetsUS5759678 *Oct 1, 1996Jun 2, 1998Mitsubishi Chemical CorporationHigh-strength porous film and process for producing the sameUS5761775Oct 17, 1996Jun 9, 1998Legome; Mark J.Mushroom and loop material closure system for high shear strength and low peel strength applicationsUS5851205 *Jul 24, 1996Dec 22, 1998Uni-Charm CorporationDisposable undergarment having a tape fastenerUS5858515 *Dec 17, 1996Jan 12, 1999Kimberly-Clark Worldwide, Inc.Pattern-unbonded nonwoven web and process for making the sameUS5875526Jul 19, 1996Mar 2, 1999Kuraray Co., Ltd.Female member of a hook-and-loop fastenerUS5897546Jul 22, 1996Apr 27, 1999Uni-Cham CorporationDisposable diaper having a fastening systemUS5962102 *Nov 26, 1997Oct 5, 19993M Innovative Properties CompanyLoop material for engagement with hooking stemsUS6632974 *Jun 21, 2000Oct 14, 2003Kao CorporationAbsorbent articleUS6653249 *May 25, 2000Nov 25, 2003Penn Emblem CorporationEmblem having calendered fabric layerUS6770065 *Apr 15, 1999Aug 3, 2004Kao CorporationFastener and absorbing article using itUS20020028624 *Aug 27, 2001Mar 7, 2002Uni-Charm CorporationAbsorbent article having fibrous layer on surfaceAU764673B2 * Title not availableJP10085012A Title not availableJP10309299A Title not availableJP11042252A Title not availableJP2000000266A Title not availableJP2000070010A Title not availableJP2000157569A Title not availableJP2001054536A Title not availableJPH0576569A Title not availableJPH0938138A Title not availableJPH1085012A Title not availableJPH1142252A Title not availableJPH01168901A Title not availableJPH01244845A Title not availableJPH02127445A Title not availableJPH09308510A Title not availableJPH10102345A * Title not availableJPH10309299A Title not availableKR0158551B1 Title not availableKR100235124B1 Title not availableKR19990014162A Title not availableWO1999060881A1Apr 15, 1999Dec 2, 1999Kao CorporationFastener and absorbing article using itWO2000042964A1Jan 19, 2000Jul 27, 2000Firma Carl FreudenbergHook and loop fastener for flat materials* Cited by examinerNon-Patent CitationsReference1A Japanese Office Action (and English translation thereof) dated Sep. 26, 2008); issued in counterpart Japanese Application No. 2001-109228.2A Japanese Office Action (and English translation thereof) dated Sep. 26, 2008, issued in counterpart Japanese Application No. 2001-109227.3A Korean Office Action (and English translation thereof) dated Oct. 13, 2008, issued in counterpart Korean Application No. 2008-7022150.4 *Complete Textile Glossary (excerpts only), Celanese Acetate, 2001.5Japanese Office Action (and English translation thereof) dated Jun. 20, 2008, issued in counterpart Japanese Patent Application No. 2001-109227.6Japanese Office Action (and English translation thereof) dated Jun. 20, 2008, issued in counterpart Japanese Patent Application No. 2001-109228.7Korean Office Action dated Dec. 11, 2008, and English translation thereof issued in a counterpart Korean Application No. 10-2003-7011545.8Korean Office Action dated Nov. 20, 2009 and English translation thereof issued in a counterpart Korean Application No. 10-2003-7011545.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8496640Apr 5, 2010Jul 30, 2013The Procter & Gamble CompanyRelease tape-free fasteners and disposable absorbent articles utilizing the sameUS8632514May 9, 2011Jan 21, 2014The Procter & Gamble CompanyLaminate with indicia for an absorbent articleUS8632840Jan 31, 2012Jan 21, 2014Covidien LpCompression device with wear areaUS8652079Apr 2, 2010Feb 18, 2014Covidien LpCompression garment having an extensionUS8992449Aug 12, 2013Mar 31, 2015Covidien LpMethod of making compression sleeve with structural support featuresUS9084713Aug 22, 2011Jul 21, 2015Covidien LpCompression device having cooling capabilityUS9107793Dec 2, 2013Aug 18, 2015Covidien LpCompression device with structural support featuresUS9114052Mar 19, 2012Aug 25, 2015Covidien LpCompression device with strategic weld constructionUS9205021Jun 18, 2012Dec 8, 2015Covidien LpCompression system with vent cooling featureUS9364037Sep 9, 2013Jun 14, 2016Covidien AgLimited durability fastening for a garmentUS20090312736 *Dec 17, 2009Arquest, Inc.Hybrid stretch ear and absorbent article including the sameUS20100191211 *Apr 5, 2010Jul 29, 2010John MolanderRelease Tape-Free Fasteners And Disposable Absorbent Articles Utilizing The SameUS20110213323 *Sep 1, 2011The Procter & Gamble CompanyLaminate with Indicia for an Absorbent ArticleUS20120136290 *Jan 31, 2012May 31, 2012Tyco Healthcare Group LpCompression device with wear areaCN104507435A *Nov 12, 2014Apr 8, 2015尤妮佳股份有限公司一次性尿布* Cited by examinerClassifications U.S. Classification604/391, 604/386International ClassificationA61F13/15, A61F13/20, A61F13/62Cooperative ClassificationA61F2013/8497, A61F13/625European ClassificationA61F13/62Legal EventsDateCodeEventDescriptionMar 31, 2004ASAssignmentOwner name: DAIO PAPER CONVERTING CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ITO, KAZUNORI;ONO, HIROSHI;KAMOTO, TOMOKA;REEL/FRAME:015237/0320;SIGNING DATES FROM 20031112 TO 20031201Owner name: DAIO PAPER CORPORATION, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ITO, KAZUNORI;ONO, HIROSHI;KAMOTO, TOMOKA;REEL/FRAME:015237/0320;SIGNING DATES FROM 20031112 TO 20031201Owner name: DAIO PAPER CORPORATION, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ITO, KAZUNORI;ONO, HIROSHI;KAMOTO, TOMOKA;SIGNING DATES FROM 20031112 TO 20031201;REEL/FRAME:015237/0320Owner name: DAIO PAPER CONVERTING CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ITO, KAZUNORI;ONO, HIROSHI;KAMOTO, TOMOKA;SIGNING DATES FROM 20031112 TO 20031201;REEL/FRAME:015237/0320Jan 8, 2014FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services