KR20200060708A - 신축 부재, 이 신축 부재를 갖는 일회용 착용 물품 및 신축 부재의 제조 방법 - Google Patents
신축 부재, 이 신축 부재를 갖는 일회용 착용 물품 및 신축 부재의 제조 방법 Download PDFInfo
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- KR20200060708A KR20200060708A KR1020207003286A KR20207003286A KR20200060708A KR 20200060708 A KR20200060708 A KR 20200060708A KR 1020207003286 A KR1020207003286 A KR 1020207003286A KR 20207003286 A KR20207003286 A KR 20207003286A KR 20200060708 A KR20200060708 A KR 20200060708A
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- Prior art keywords
- sheet
- elastic
- region
- joint
- sheet layer
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- A61F2013/51178—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers with the combination of nonwoven webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
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- 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
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Abstract
[해결 수단] 상기 과제는 부직포로 구성되는 제1 시트층(20A) 및 부직포로 구성되는 제2 시트층(20B)의 사이에 탄성 시트(30)가 개재되고, 제1 시트층(20A) 및 제2 시트층(20B)이 간격을 두고 배열된 다수의 시트 접합부(40)에서, 탄성 시트(30)를 관통하는 접합 구멍(31)을 통해 용착된 탄성 시트 신축 구조(20X)를 가지며, 탄성 시트 신축 구조(20X)를 갖는 영역은 형상이 다른 시트 접합부(40)을 갖고 있으며, 탄성 시트 신축 구조(20X)를 갖는 영역에서 모든 시트 접합부(40)는 접합 기준 직경(φ)이 0.2㎜ 이상이고, 접합 기준 직경(φ)의 최대치가 최소치의 1∼3배이면서 둘레 길이가 접합 기준 직경(φ)을 직경으로 하는 원의 원주 길이의 1∼15배인 것을 특징으로 하는 신축 부재에 의해 해결된다.
Description
도 2는 전개 상태의 팬티 타입 일회용 기저귀의 평면도(외면 측)이다.
도 3은 전개 상태의 팬티 타입 일회용 기저귀의 주요부만 나타내는 평면도이다.
도 4의 (a)는 도 1의 C-C단면도, (b)는 도 1의 E-E단면도이다.
도 5는 도 1의 A-A단면도이다.
도 6은 도 1의 B-B단면도이다.
도 7의 (a)는 신축 영역의 주요부 평면도, (b)는 (a)의 D-D단면도, (c)는 장착 상태에서의 단면도, (d)는 자연 길이 상태에서의 단면도이다.
도 8은 어느 정도 신장한 외장체의 주요부 단면을 개략적으로 나타내는 단면도이다.
도 9의 (a)는 신축 영역의 주요부 평면도, (b)는 (a)의 D-D단면도, (c)는 장착 상태에서의 단면도, (d)는 자연 길이 상태에서의 단면도이다.
도 10은 시트 접합부의 각종 배열을 나타내는 평면도이다.
도 11은 전개 상태의 신축 영역의 평면도이다.
도 12는 전개 상태의 신축 영역의 주요부를 확대하여 나타내는 평면도이다.
도 13은 자연 길이 상태의 신축 영역의 주요부를 확대하여 나타내는 평면도이다.
도 14의 (a)는 도 12의 D-D단면도, (b)는 자연 길이 상태에서의 단면도이다.
도 15는 전개 상태의 신축 영역의 평면도이다.
도 16은 전개 상태의 신축 영역의 주요부를 확대하여 나타내는 평면도이다.
도 17은 자연 길이 상태의 신축 영역의 주요부를 확대하여 나타내는 평면도이다.
도 18은 팬티 타입 일회용 기저귀의 주요부만 나타내는 정면도이다.
도 19는 팬티 타입 일회용 기저귀의 주요부만 나타내는 정면도이다.
도 20은 팬티 타입 일회용 기저귀의 주요부만 나타내는 정면도이다.
도 21은 초음파 실링 장치의 개략도이다.
도 22는 도 2의 Q부를 확대하여 나타내는 평면도이다.
도 23은 도 2의 Q부를 확대하여 나타내는 평면도이다.
도 24는 시트 접합부의 각종 형상을 나타내는 평면도이다.
11 탑 시트 12 액 불투과성 시트
13 흡수체 13N 잘록 부분
14 포장 시트 17 무흡수체 측부
20 외장체 20A 제1 시트층
20B 제2 시트층 20C 되접어 꺾은 부분
20X 탄성 시트 신축 구조 21 사이드 실링부
23 웨이스트 단부 영역 24 웨이스트부 탄성 부재
25 수축 주름 29 다리 둘레 라인
30 탄성 시트 31 접합 구멍
40 시트 접합부 51, 52 무접합대
51 제1 무접합대 51d 제1 방향
51s 제1 간격 51w 제1 폭
52 제2 무접합대 52d 제2 방향
70 비신축 영역 80 신축 영역
90 입체 개더 93 도복 부분
94 자유 부분 95 개더 시트
96 개더 탄성 신축 부재 B 뒷몸판
ED 신축 방향 F 앞몸판
L 중간부 LD 전후 방향
T 몸통 둘레부 WD 폭 방향
71 경계 φ 접합 기준 직경
Claims (7)
- 부직포로 구성되는 제1 시트층 및 부직포로 구성되는 제2 시트층의 사이에 탄성 시트가 개재되고, 상기 제1 시트층 및 제2 시트층이, 간격을 두고 배열된 다수의 시트 접합부에서, 탄성 시트를 관통하는 접합 구멍을 통해 용착된, 탄성 시트 신축 구조를 갖고,
상기 탄성 시트 신축 구조를 갖는 영역은, 상기 탄성 시트의 수축에 의해 신축 방향으로 수축하고 있음과 동시에 신축 방향으로 신장 가능한 신축 영역을 갖고,
상기 탄성 시트 신축 구조를 갖는 영역은, 형상이 다른 시트 접합부를 갖고 있으며,
상기 탄성 시트 신축 구조를 갖는 영역에서 모든 상기 시트 접합부는, 접합 기준 직경이 0.2㎜ 이상이고, 접합 기준 직경의 최대치가 최소치의 1∼3배이면서, 둘레 길이가 접합 기준 직경을 직경으로 하는 원의 원주 길이의 1∼15배인 것을 특징으로 하는 신축 부재. - 제1항에 있어서,
제1 시트층 및 제2 시트층은, 섬도 0.7∼6dtex, 평량 10∼25g/㎡인 부직포로서,
상기 탄성 시트 신축 구조를 갖는 영역에서 모든 상기 시트 접합부는, 상기 접합 기준 직경이 0.2∼0.8㎜인, 신축 부재. - 제1항 또는 제2항에 있어서,
상기 탄성 시트 신축 구조를 갖는 영역은, 상기 신축 영역과, 이 신축 영역 중 적어도 신축 방향 일방 측에 마련된 비신축 영역을 갖고 있고,
상기 신축 영역에서 상기 시트 접합부의 면적율이 상기 비신축 영역에서 상기 시트 접합부의 면적율의 0.5∼1배이며,
상기 신축 영역과 상기 비신축 영역의 경계는, 그 일단부터 타단을 향함에 따라 연속적으로 신축 방향 중 어느 일방 측으로만 어긋나 가는 형상을 갖고 있는, 신축 부재. - 앞몸판부터 뒷몸판에 걸치는 일체적인 외장체, 또는 앞몸판 및 뒷몸판에 별개로 마련된 외장체와, 이 외장체의 폭 방향 중간부에 설치된 고간부의 전후 양측에 걸치는 내장체와, 앞몸판에서의 외장체의 양측부와 뒷몸판에서의 외장체의 양측부가 각각 접합된 사이드 실링부와, 웨이스트 개구 및 좌우 한 쌍의 다리 개구를 구비한, 팬티 타입 일회용 착용 물품으로서,
상기 앞몸판 및 뒷몸판의 외장체는, 상기 사이드 실링부와 대응하는 전후 방향 범위인 몸통 둘레부를 갖고 있고,
상기 앞몸판 및 뒷몸판 중 적어도 한쪽에서 상기 외장체는, 상기 몸통 둘레부보다 전후 방향 중앙 측에 위치하는 중간부를 갖고 있고,
상기 중간부는, 상기 다리 개구를 따르는 테두리부 영역을 갖고 있으며,
상기 중간부를 갖는 외장체는, 전후 방향에서 상기 중간부 내부터 상기 몸통 둘레부 내에 걸치면서, 폭 방향에서 상기 사이드 실링부간에 걸쳐, 제1 양태의 탄성 시트 신축 구조를, 그 신축 영역의 신축 방향이 폭 방향이 되도록 구비한 신축 부재로서,
다리 개구를 따르는 테두리부 영역에서의 시트 접합부의 형상과, 그 이외 영역에서의 시트 접합부의 형상이 다르고,
다리 개구를 따르는 테두리부 영역 및 그 이외 영역에서의 모든 상기 시트 접합부는, 접합 기준 직경이 0.2㎜ 이상이고, 접합 기준 직경의 최대치가 최소치의 1∼3배이면서, 둘레 길이가 접합 기준 직경을 직경으로 하는 원의 원주 길이의 1∼15배인 것을 특징으로 하는 일회용 착용 물품. - 제4항에 있어서,
상기 탄성 시트 신축 구조를 갖는 외장체는, 폭 방향 중간부에 비신축 영역을 가짐과 동시에, 이 비신축 영역과 상기 사이드 실링부의 사이에 대응하는 폭 방향 범위는 상기 신축 영역으로 되어 있고,
상기 신축 영역에서의 상기 시트 접합부의 면적율이 상기 비신축 영역에서의 상기 시트 접합부의 면적율의 0.5∼1배이며,
상기 신축 영역과 상기 비신축 영역의 경계는, 웨이스트 개구 측의 끝부터 일회용 착용 물품의 전후 방향의 중앙을 향함에 따라 연속적으로 상기 사이드 실링부 측으로만 어긋나 가는 형상을 갖고 있는, 일회용 착용 물품. - 제1 시트층과, 제2 시트층의 사이에, 탄성 시트를 MD 방향으로 신장한 상태에서 개재시키는 공급 공정과,
상기 제1 시트층, 상기 제2 시트층 및 이들 사이에 개재된 신장 상태의 상기 탄성 시트를, 외주면에 소정 패턴으로 간격을 두고 배열된 다수의 돌기부를 갖는 앤빌 롤과, 앤빌 롤의 외주면에 대향하는 초음파 혼의 사이에 통하여, 상기 제1 시트층 및 제2 시트층을 상기 다수의 돌기부와 초음파 혼의 사이에 끼워지는 부분만 용착하여 시트 접합부를 형성하는, 접합 공정을 포함하고,
하나의 초음파 혼에서 접합 기준 직경이 다른 시트 접합부를 형성함과 동시에,
하나의 초음파 혼에서 형성하는 모든 상기 시트 접합부는, 접합 기준 직경이 0.2㎜ 이상이고, 접합 기준 직경의 최대치가 최소치의 1∼3배이면서, 둘레 길이가 접합 기준 직경을 직경으로 하는 원의 원주 길이의 1∼15배인 것을 특징으로 하는 신축 부재의 제조 방법. - 제1 시트층과, 제2 시트층의 사이에, 탄성 시트를 MD방향으로 신장한 상태에서 개재시키는 공급 공정과,
상기 제1 시트층, 상기 제2 시트층 및 이들 사이에 개재된 신장 상태의 상기 탄성 시트를, 외주면에 소정 패턴으로 간격을 두고 배열된 다수의 돌기부를 갖는 앤빌 롤과, 앤빌 롤의 외주면에 대향하는 대향 롤의 사이에 통하여, 가열한 상기 앤빌 롤 및 대향 롤에 의해, 상기 제1 시트층 및 제2 시트층을 상기 다수의 돌기부와 대향 롤의 사이에 끼워지는 부분만 용착하여 시트 접합부를 형성하는, 접합 공정을 포함하고,
한 쌍의 앤빌 롤 및 대향 롤에서 접합 기준 직경이 다른 시트 접합부를 형성함과 동시에,
한 쌍의 앤빌 롤 및 대향 롤에서 형성하는 모든 상기 시트 접합부는, 접합 기준 직경이 0.2㎜ 이상이고, 접합 기준 직경의 최대치가 최소치의 1∼3배이면서 둘레 길이가 접합 기준 직경을 직경으로 하는 원의 원주 길이의 1∼15배인 것을 특징으로 하는 신축 부재의 제조 방법.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2017-187179 | 2017-09-27 | ||
| JP2017187179A JP6546237B2 (ja) | 2017-09-27 | 2017-09-27 | 伸縮部材及びこの伸縮部材を有する使い捨て着用物品 |
| JPJP-P-2017-226330 | 2017-11-24 | ||
| JP2017226330A JP6546251B2 (ja) | 2017-11-24 | 2017-11-24 | 伸縮部材及びこの伸縮部材を有する使い捨て着用物品、並びに伸縮部材の製造方法 |
| PCT/JP2018/035311 WO2019065574A1 (ja) | 2017-09-27 | 2018-09-25 | 伸縮部材及びこの伸縮部材を有する使い捨て着用物品、並びに伸縮部材の製造方法 |
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| KR20200060708A true KR20200060708A (ko) | 2020-06-01 |
| KR102519500B1 KR102519500B1 (ko) | 2023-04-07 |
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| KR (1) | KR102519500B1 (ko) |
| CN (1) | CN110868977A (ko) |
| RU (1) | RU2759992C2 (ko) |
| WO (1) | WO2019065574A1 (ko) |
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- 2018-09-25 EP EP18863683.1A patent/EP3689311B1/en active Active
- 2018-09-25 RU RU2020107703A patent/RU2759992C2/ru active
- 2018-09-25 WO PCT/JP2018/035311 patent/WO2019065574A1/ja not_active Ceased
- 2018-09-25 US US16/636,859 patent/US20200368077A1/en active Pending
- 2018-09-25 CN CN201880045667.XA patent/CN110868977A/zh active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3689311A4 (en) | 2021-10-20 |
| RU2020107703A (ru) | 2021-10-27 |
| EP3689311B1 (en) | 2023-11-08 |
| KR102519500B1 (ko) | 2023-04-07 |
| US20200368077A1 (en) | 2020-11-26 |
| WO2019065574A1 (ja) | 2019-04-04 |
| EP3689311A1 (en) | 2020-08-05 |
| RU2759992C2 (ru) | 2021-11-22 |
| CN110868977A (zh) | 2020-03-06 |
| RU2020107703A3 (ko) | 2021-10-27 |
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