RU2020107709A - Эластичный элемент и одноразовое изделие, включающее в себя эластичный элемент - Google Patents

Эластичный элемент и одноразовое изделие, включающее в себя эластичный элемент Download PDF

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RU2020107709A
RU2020107709A RU2020107709A RU2020107709A RU2020107709A RU 2020107709 A RU2020107709 A RU 2020107709A RU 2020107709 A RU2020107709 A RU 2020107709A RU 2020107709 A RU2020107709 A RU 2020107709A RU 2020107709 A RU2020107709 A RU 2020107709A
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Russia
Prior art keywords
portions
stretching
connected sections
bonded
elastic
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RU2020107709A
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English (en)
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RU2761786C2 (ru
RU2020107709A3 (ru
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Сюнсукэ САКАИ
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Дайо Пейпер Корпорейшн
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    • 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
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • A61F2013/49022—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastomeric sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Claims (19)

1. Эластичный элемент, имеющий растягивающуюся структуру с эластичным листом, в которой эластичный лист размещен между первым листовым слоем, обладающим воздухопроницаемостью, и вторым листовым слоем, обладающим воздухопроницаемостью, и первый листовой слой и второй листовой слой скреплены посредством отверстий для соединения, проходящих через эластичный лист, или посредством эластичного листа в множестве расположенных с интервалами, соединенных участков листов,
при этом растягивающаяся зона, имеющая растягивающуюся структуру с эластичным листом, выполнена с возможностью растягивания и стягивания в направлении растягивания под действием стягивающего усилия, создаваемого эластичным листом,
соединенные участки имеют первые соединенные участки и вторые соединенные участки,
ряд первых соединенных участков образован так, что первые соединенные участки разнесены вдоль направления выравнивания, при этом выравнивание выполнено под углом, пересекающим направление растягивания и находящемся в диапазоне от 45 градусов до 135 градусов,
первые соединенные участки в ряду первых соединенных участков образованы с длиной, составляющей 0,3-7,0 мм, в ортогональном направлении, ортогональном к направлению растягивания,
ряд первых соединенных участков так, чтобы обеспечить шаг образования 2,0-20,0 мм, в направлении растягивания,
при этом расстояние относительно ортогонального направления определяется взаимным расположением соседних первых соединенных участков в ряду первых соединенных участков,
выраженное в процентах отношение (разделяющее расстояние между соседними первыми соединенными участками) / (расстояние от одной точки соединенного участка до одной соответствующей точки соседнего первого соединенного участка) составляет 5-60%,
множество рядов первых соединенных участков образованы с интервалами в направлении растягивания, и
множество вторых соединенных участков, имеющих более короткую длину, чем длина первых соединенных участков, образованы в направлении выравнивания между рядами первых соединенных участков.
2. Эластичный элемент по п.1, в котором множество рядов вторых соединенных участков, в которых вторые соединенные участки разнесены в направлении выравнивания, образованы между рядами первых соединенных участков.
3. Эластичный элемент по п.2, в котором соединенный участок, имеющий длину первых соединенных участков или бóльшую длину, не образован в рядах вторых соединенных участков.
4. Одноразовое изделие типа трусов, содержащее:
наружный элемент, составляющий одно целое и проходящий от передней основной части до задней основной части, или наружные элементы, предусмотренные отдельно для передней основной части и задней основной части;
внутренний элемент, прикрепленный к части наружного элемента, промежуточной в направлении ширины, при этом внутренний элемент проходит как до передней, так и до задней сторон промежностной части;
части, представляющие собой боковые швы, в которых обе боковые части наружного элемента в передней основной части и обе боковые части наружного элемента в задней основной части прикреплены друг к другу; и
отверстие для талии и два отверстия для правой и левой ног,
при этом наружный элемент включает в себя эластичный элемент по любому из пп.1-3,
при этом наружный элемент в, по меньшей мере, одной из первой основной части и второй основной части имеет растягивающуюся структуру с эластичным листом в той зоне в направлении ширины, которая соответствует интервалу между частями, представляющими собой боковые швы, по меньшей мере, на части протяженности в направлении вперед-назад, так что направление растягивания его растягивающейся зоны соответствует направлению ширины.
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