RU2017107943A - Способ формирования растягивающейся структуры для впитывающего изделия и растягивающаяся структура для впитывающего изделия - Google Patents

Способ формирования растягивающейся структуры для впитывающего изделия и растягивающаяся структура для впитывающего изделия Download PDF

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RU2017107943A
RU2017107943A RU2017107943A RU2017107943A RU2017107943A RU 2017107943 A RU2017107943 A RU 2017107943A RU 2017107943 A RU2017107943 A RU 2017107943A RU 2017107943 A RU2017107943 A RU 2017107943A RU 2017107943 A RU2017107943 A RU 2017107943A
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elastic
parts
sheet material
layer
elastic elements
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RU2017107943A
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RU2017107943A3 (ru
RU2676441C2 (ru
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Ясуко ИСИКАВА
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Дайо Пейпер Корпорейшн
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    • A61F13/15577Apparatus or processes for manufacturing
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    • A61F13/15577Apparatus or processes for manufacturing
    • A61F2013/15821Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15861Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
    • A61F2013/15878Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding by thermal bonding
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F2013/49042Form-fitting, self-adjusting disposable diapers with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length
    • A61F2013/49052Form-fitting, self-adjusting disposable diapers with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length having a specific direction of stretchability
    • A61F2013/49053Form-fitting, self-adjusting disposable diapers with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length having a specific direction of stretchability being stretchable in the longitudinal direction or machine direction, i.e. longitudinal
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49088Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/087Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using both a rotary sonotrode and a rotary anvil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037Other properties
    • B29K2995/0046Elastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/48Wearing apparel
    • B29L2031/4871Underwear
    • B29L2031/4878Diapers, napkins

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Claims (27)

1. Способ формирования растягивающейся структуры для впитывающего изделия, согласно которому: во время вращения первого валика с соединяющими выпуклыми частями, выполненными с интервалами в направлении вдоль окружности на наружной периферийной поверхности, и второго валика, противоположного по отношению к первому валику, в противоположных направлениях вокруг их центральных осей пропускают первый слой из листового материала, второй слой из листового материала и удлиненные упругие и эластичные элементы, расположенные непрерывно в направлении (МD) обработки между этими слоями из листовых материалов, между первым валиком и вторым валиком и сдавливают и нагревают первый слой из листового материала и второй слой из листового материала, помещенные между соединяющими выпуклыми частями первого валика и вторым валиком, для образования соединенных частей листов посредством сварки первого слоя из листового материала и второго слоя из листового материала таким образом, чтобы соединяющие части листов перекрещивались с упругими и эластичными элементами и чтобы между ними были интервалы в направлении (MD) обработки, при этом
формируют канавки, непрерывные в направлении вдоль окружности, на сдавливающей поверхности, по меньшей мере, одного из первого валика и второго валика для приложения давления в, по меньшей мере, зонах, представляющих собой части поверхностей, соответствующих полным оборотам при вращении первого валика и второго валика, и
при этом при сдавливании и нагреве участки, на которых проходят упругие и эластичные элементы, сдавливают и нагревают в местах, включающих в себя канавки, и участки, на которых не проходят упругие и эластичные элементы, сдавливают и нагревают в местах без канавок.
2. Способ по п.1, согласно которому
соединяющие выпуклые части являются удлиненными и проходят в направлении, пересекающем упругие и эластичные элементы, и имеют первые части, сравнительно длинные в направлении вдоль окружности, и вторые части, сравнительно короткие в направлении вдоль окружности, при этом
первые части располагают на участках, включающих в себя участки, на которых проходят упругие и эластичные элементы, и
вторые части располагают на участках, не включающих в себя участки, на которых проходят упругие и эластичные элементы.
3. Способ по п.1, согласно которому соединяющие выпуклые части являются удлиненными и проходят в направлении, пересекающем упругие и эластичные элементы, и имеют выступающие части, выступающие в направлении вращения от обеих определяемых в направлении (CD), поперечном к направлению обработки, сторон участков, перекрещивающихся с упругими и эластичными элементами.
4. Способ по п.1, согласно которому
формируют канавки в зонах, представляющих собой части поверхности, соответствующей полным оборотам при вращении первого валика и второго валика, не формируя никакой канавки в остальных зонах, и
разрезают упругие и эластичные элементы за счет сдавливания и нагрева в зонах без канавок, и во время сдавливания и нагрева не разрезают упругие и эластичные элементы в зонах с канавками.
5. Растягивающаяся структура для впитывающего изделия, содержащая:
первый слой из листового материала;
второй слой из листового материала, противоположный одной поверхности первого слоя из листового материала; и
множество удлиненных упругих и эластичных элементов, предусмотренных между первым слоем из листового материала и вторым слоем из листового материала вдоль направления растягивания с интервалами между ними, при этом
первый слой из листового материала и второй слой из листового материала соединены вместе посредством процесса сварки, который является прерывистым в направлении растягивания и непрерывным в направлении, пересекающем направление растягивания, для образования соединенных частей листов,
упругие и эластичные элементы прикреплены к первому слою из листового материала и второму слою из листового материала посредством процесса сварки для образования соединенных частей листов в местах, перекрещивающихся с соединенными частями листов,
участки первого слоя из листового материала и второго слоя из листового материала, расположенные между соединенными частями листов выпучены в противоположных направлениях для образования складок, когда первый слой из листового материала и второй слой из листового материала стянуты при стягивании упругих и эластичных элементов, и
в одном из первого слоя из листового материала и второго слоя из листового материала в соединенных частях листов в состоянии естественной длины видимая толщина частей, перекрывающих центры упругих и эластичных элементов, составляет 80-100% от видимой толщины частей без упругих и эластичных элементов.
6. Растягивающаяся структура по п.5, в которой
соединенные части листов являются удлиненными и проходят в направлении, пересекающем упругие и эластичные элементы, и имеют первые части, сравнительно длинные в направлении ширины, и вторые части, сравнительно короткие в направлении ширины, причем
первые части расположены на участках, включающих в себя участки, на которых проходят упругие и эластичные элементы, и
вторые части расположены на участках, не включающих в себя участки, на которых проходят упругие и эластичные элементы.
7. Растягивающаяся структура по п.5, в которой соединенные части листов являются удлиненными и проходят в направлении, пересекающем упругие и эластичные элементы, и имеют на участках, перекрещивающихся с упругими и эластичными элементами, выступающие части, которые выступают из обеих сторон в направлении, пересекающем упругие и эластичные элементы, к одной стороне в направлении ширины.
8. Растягивающаяся структура по любому из пп.5-7, для впитывающего изделия, которое представляет собой одноразовый подгузник типа трусов, включающий в себя наружный элемент, образующий переднюю панель и заднюю панель, и внутренний элемент, который прикреплен к внутренней поверхности наружного элемента и включает в себя впитывающий компонент,
при этом передняя панель наружного элемента и задняя панель наружного элемента соединены вместе на обеих боковых сторонах для образования частей с боковыми швами, в результате чего образуются поясной участок, имеющий кольцеобразную форму, участок отверстия для талии, и два отверстия для правой и левой ног, причем
растягивающаяся структура предусмотрена в зоне наружного элемента, включающей в себя, по меньшей мере, обе в направлении ширины, боковые стороны внутреннего элемента, так, что упругие и эластичные элементы размещены в направлении ширины.
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CN105455954B (zh) 2019-12-31
BR112017004522B1 (pt) 2022-06-07
BR112017004522A2 (pt) 2018-01-23
KR102388915B1 (ko) 2022-04-20
EP3199132B1 (en) 2019-09-11
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