KR100298378B1 - 팬티형1회용기저귀의제조방법 - Google Patents

팬티형1회용기저귀의제조방법 Download PDF

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KR100298378B1
KR100298378B1 KR1019940010872A KR19940010872A KR100298378B1 KR 100298378 B1 KR100298378 B1 KR 100298378B1 KR 1019940010872 A KR1019940010872 A KR 1019940010872A KR 19940010872 A KR19940010872 A KR 19940010872A KR 100298378 B1 KR100298378 B1 KR 100298378B1
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sheet
diaper
surface sheet
type disposable
wing
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스에카네마코토
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다카하라 게이이치로
유니챰 가부시키가이샤
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Abstract

본 발명의 목적은 팬티형 1 회용 기저귀의 허리둘레 융착부의 감촉을 부드럽게 하기 위한 것이다.
본 발명의 팬티형 1 회용 기저귀(1)는 허리둘레 측부를 형성하기 위해, 앞길(5) 및 뒷길(6)에 배치된 날개부(21),(22)를 표면 시트(2)가 안쪽이 되도록 마주보게 포개고, 가열 가압하여 융착시킨다. 날개부(21),(22)에 있어서, 표면 시트(2) 및 이면 시트(3)의 최소한 한쪽에 면방향으로 이어지는 시트편을 접합하고, 상기 융착하는 부분의 이면 시트를 표면 시트보다도 고융점의 시트로 구성한다.

Description

팬티형 1 회용 기저귀의 제조 방법
제1도는 팬티형 1회용 기저귀의 사시도.
제2도는 기저귀를 전개했을 때의 평면도.
제3도는 제2도의 X-X 선 부분 단면도.
제4도는 초음파 처리의 모식도.
제5(a)도와 제5(b)도에 의해 상이한 상태를 나타내는 융착부의 부분 단면도.
제6(a)도, 제6(b)도, 제6(c)도에 의해 상이한 양태를 나타내는 제3도와 같은 기저귀의 부분 단면도.
* 도면의 주요부분에 대한 부호의 설명
1 : 팬티형 1 회용 기저귀 2 : 표면 시이트
2A : 표면측 시이트 부재 3 : 이면 시이트
3A : 이면측 시이트 부재 4 : 흡수성 코어
21,22 : 날개부
본 발명은 허리둘레측부를 융착해서 이루어진 팬티형 1 회용 기저귀의 제조방법에 관한 것이다.
일본국 특개평 5-15551호 공보에는 팬티형 1 회용 기저귀의 일례가 개시되어 있다. 이 기술에서는 표면 시이트와 이면 시이트 사이에 흡수성 코어가 배치되어 이루어진 기저귀 본체를, 가랑이 부분에서 전면부와 후면부의 길이 방향으로 구부려 서로 포개고 허리둘레측부에서 표면 시이트와 이면 시이트를 초음파로 서로 융착시킴으로써 팬티형의 형상을 만든다. 표면 시이트와 이면 시이트의 일례로는 열가소성 합성 섬유로 이루어진 부직포가 있으며, 초음파 처리에 의해 이 부직포는 용융된다.
상기 공보의 기술에 의한 표면 시이트와 이면 시이트의 부직포는 동일 종류의 섬유로 구성될 수 있으며, 초음파 처리에 의해 그 부직포를 적당한 점착성을 띠는 정도로까지 용융시킴으로써, 표면 시이트와 이면 시이트의 융착부 외관을 매끈하게 완성시킬 수 있다. 그런데, 표면 시이트는 상대적으로 고융점의 폴리프로필렌 섬유로 이루어진 부직포로 하고 이면 시이트는 저융점의 폴리에틸렌시이트로 하여 조합하는 경우, 마주보게 포개서 안쪽이 된 폴리프로필렌 섬유를 용융하려고 하면, 바깥쪽의 폴리에틸렌 시이트가 먼저 용융하여 그 점도가 필요 이상으로 낮아져 시이트를 압연하는 초음파 처리용 혼에 부착되는 일이 종종 있다.
이렇게 부착된 폴리에틸렌 시이트는 냉각후에 표면이 꺼칠꺼칠해지므로 착용자의 피부를 자극하여 불쾌감을 주거나 착용물품의 외관을 손상시키는 등의 문제점이 있다. 또한, 혼에 폴리에틸렌이 부착된 상태로는 이후 기저귀의 초음파 처리시혼과 앤빌과의 사이에 정확한 공간을 얻을 수 없으며, 연속적인 처리가 곤란해지는 문제점이 있다.
따라서, 본 발명은 기저귀 날개부의 이면 시이트측을 표면 시이트측 보다도 고융점의 시이트로 구성함으로써 상기 종래 기술의 문제점을 해결하는 것을 목적으로 하고 있다.
본 발명은 후술하는 바에 의해 상기 문제점을 해결하였다.
본 발명에서는 전면부, 후면부 및 이들 사이에 배치된 가랑이 부분을 가진 팬티형 1회용 기저귀를 투수성 표면 시이트, 불투수성 이면 시이트 및 이들 양시이트 사이에 배치된 흡수성 코어로 구성하고, 전면부와 후면부에 있어서 흡수성 코어의 좌우 각측 가장자리에서 바깥쪽으로 향하는 날개부를 표면 시이트가 기저귀 안쪽에 위치하도록 마주보게 포개어 이들 날개부의 대향 측 가장자리를 가열 가압하에 융착해서 일체를 이루도록 함으로써, 허리둘레측부를 형성하는 팬티형 1회용 기저귀의 제조 방법을 전제로 하고 있다.
이러한 전제에 있어서, 본 발명은 날개부를 형성하는 표면 시이트와 이면 시이트중 최소한 한쪽을 그 시이트와는 상이한 부재의 시이트로 구성함으로써, 상기 날개부의 이면 시이트가 표면 시이트보다도 고융점을 갖도록 하여 상기 융착을 수행하는데 특징이 있다.
상기와 같이 구성된 기저귀는 융착될 시이트 부분을 초음파 혼 또는 목적하는 형상의 가열체 등의 가열 압연 수단으로 압착하여 허리둘레 측부를 형성함으로써 제조된다. 이 압연 수단에는 상대적으로 고융점인 이면 시이트가 접촉하므로, 표면 시이트가 용융되더라도 압연 수단을 더럽히는 일이 없다.
[실시예]
본 발명에 의한 팬티형 1회용 기저귀는 첨부한 도면에 의거하여 이하 상세히 설명한다.
제1도는 본 발명에 의한 팬티형 1회용 기저귀(1)의 사시도이다.
기저귀(1)는 폴리프로필렌 섬유로 이루어진 멜트 본드 부직포제의 투수성 표면 시이트(2), 폴리에틸렌 시이트제의 불투수성 이면 시이트(3) 및 이들 양시이트(2),(3) 사이에 배치된 흡수성 코어(4)로 이루어지며, 전면부(5), 후면부(6) 및 가랑이부(7)를 갖는다. 전면부(5) 및 후면부(6)는 표면 시이트(2)를 안쪽으로 하여 포개어, 몸통 둘레측부에 상하 방향으로 간헐적으로 연재되어 있는 초음파 융착부(15)를 서로 융착하여 일체를 이루고 있다. 이면 시이트(3)에 있어, 흡수성 코어(4)의 좌우측 가장자리에서 바깥쪽으로 향하는 전면부(5) 및 후면부(6)의 후기 날개부(21),(22)의 부분은 시이트(3)에 적합한 폴리프로필렌 시이트로 이루어진 시이트 부재(3A)로 되어 있다.
제2도는 상기 융착하기 전의 기저귀(1A)를 전면부 및 후면부의 길이 방향으로 전개했을 때의 평면도로서, 일부가 절제되어 있다. 기저귀(1A)는 전면부(5) 및 후면부(6)의 각각에 있어, 흡수성 코어(4) 측 가장자리에서 바깥쪽으로 향하는 시이트 부분이 형성하는 전면부(5) 및 후면부(6)의 날개부(21),(22)를 갖는다. 날개부(21),(22)에 있어서, 이면 시이트(3)의 측 가장자리에는 표면 시이트(2) 보다 고융점의 시이트 부재(3A)로 폴리프로필렌의 시이트편이 접합되어 있다. 기저귀(1A)의 좌우 양측에는 표면 시이트(2)의 윗면에 길이 방향으로 뻗어 있는 한쌍의 플랩(31)이 배치되어 있다. 플랩(31)의 외측부(25)와 양쪽 단부(26),(27)는 표면 시이트(2)에 접합되어 있고, 안쪽 가장자리(28)는 그 곳에 신장하에서 점착된 탄성 부재(29)의 작용에 의해 표면 시이트(2)에 대해 기립 가능하다.
제3도는 제2도의 X-X 선 부분 단면도로서, 날개부(21)의 단면을 나타낸다. 날개부(21)는 표면 시이트(2)측의 시이트 부재(2A)와, 이면 시이트(3)측의 시이트 부재(3A)에 의해 구성되는 부위로서, 제3도에서 시이트 부재(2A)는 표면 시이트(2)의 측가장자리에서 연장된 부분이며, 시이트 부재(3A)는 이면 시이트(3)에 접합된 폴리프로필렌의 시이트편이다. 날개부(21)에 있어서 표면 시이트(2)와 이면 시이트(3) 또는 시이트 부재(2A)와 (3A)는 고온 용융 접착제(33)에 의해 서로 접착되어 있다. 그리고, 날개부(22)의 단면을 나타내는 Y-Y 선 단면도는 제3도와 거의 같으므로 그 도시를 생략한다.
제4도는 제2도의 기저귀(1A)를 중심선 C-C 에 따라서 안쪽으로 구부리고, 마주보게 포갠 전면부 및 후면부의 날개부(21),(22)를 초음파 용접기(40)로 융착할 때의 모식적 측면도이다. 용접기(40)는 통상적으로 사용되는 것으로서, 초음파 발진기(도시 생략)에 연결되어 있는 혼(41)과 고정된 앤빌(42)로 이루어지는데, 이들은 날개부(21),(22)를 사이에 두고 양쪽에서 가압하여 융착시킴으로써, 혼(41)의 선단 형상에 따른 융착부(15)(제1도 참조)를 형성한다.
제5도는 융착부의 모식적 단면도로서, 제5(a)도는 본 발명의 방법에 따라서 제4도의 기저귀(1A)를 초음파 처리해서 얻어지는 융착부(15)를 나타낸 것이며, 제5(b)도는 본 발명의 방법에 대한 비교예로서, 날개부의 표면 시이트 부재(2A)와 이면 시이트 부재(3A)가 각기 폴리프로필렌의 부직포 시이트와 폴리에틸렌 시이트로 이루어지는 경우를 나타낸다.
제5(a)도에서는 폴리프로필렌 시이트의 점도가 너무 낮아지지 않을 정도의 용융 상태로 융착함으로써 융착부(15)에서 혼(41)을 압연한 흔적이 둥글고 부드럽게 완성되어 피부가 닿았을 때에도 자극을 주는 일이 없다. 한편 제5(b)도에서는 안쪽 폴리프로필렌의 부직포 시이트끼리를 융착하려고 하면, 바깥쪽의 폴리에틸렌 시이트가 먼저 용융하여 점도가 지나치게 낮아져서, 혼이나 앤빌(42)에 부착하는 일이 많아진다. 냉각후 융착부는 표면 상태가 꺼칠꺼칠하게 되어 피부에 찌르는 듯한 자극을 주게 된다.
제6도는 제3도와는 다른 양태의 기저귀(1A)의 부분 단면을 제6(a)도∼제6(c)도로 나타낸 도면이다. 제6(a)도에서는 표면 시이트(2)가 폴리프로필렌의 멜트 본드 부직포이고, 이면 시이트(3)가 폴리에틸렌 시이트이지만, 날개부(21)에서는, 표면측의 시이트 부재(2A)가 표면 시이트(2)의 측 가장자리에 고온 용융 접착제(33)에 의해 접합된 폴리에틸렌 시이트로 이루어진다. 이 경우에는 날개부(21)를 형성하는 표면 시이트(2A) 및 이면 시이트(3A)의 융점이 같다.
제6(b)도에서는 PET 섬유 60 중량% 이상을 포함하는 부직포제의 표면 시이트(2)에 시이트 부재(2A)로서 폴리에틸렌 시이트가 접합되어 있고, 폴리에틸렌 시이트로 이루어진 이면 시이트(3)에 시이트 부재(3A)로서 폴리프로필렌 시이트가 접합되어 있다. 제6(c)도에서는 폴리프로필렌의 멜트 본드 부직포로 이루어진 표면 시이트(2)의 측 가장자리에 동일한 부직포로 이루어진 플랩(31)의 외측부(25)를 접합하는 동시에, 외측부(25)의 폭을 넓게 하여 시이트 부재(2A)를 형성하고, 폴리에틸렌 시이트로 이루어진 이면 시이트(3)에는 폴리프로필렌 시이트로 이루어진 시이트 부재(3A)가 접합되어 있다.
본 발명에 있어서는 표면측의 시이트 부재(2A)나 이면측의 시이트 부재(3A)를 융점이 상이한 섬유 혼합물로 이루어진 부직포 시이트로 할 수 있다
그 경우의 각 시이트의 융점의 고저란 합계가 60 중량% 이상을 차지하는 구성 섬유의 융점의 차이를 의미한다.
또한, 이면측의 시이트 부재(3A)의 융점은 표면측의 시이트 부재(2A)의 융점과 동일하거나 그보다 높지 않으면 안되며, 그 보다도 높은 것이 더욱 바람직하다. 그래야만 가열 압연 수단의 흔적을 얕고 작게하기가 용이하다.
실시예와 같이 기저귀(1)에 있어서, 폴리프로필렌 섬유로 이루어진 부직포를 표면 시이트(2)나 표면측 시이트 부재로서 사용하면, 섬도나 밀도에 의해서도 그러하지만, 비교적 질긴 이 섬유가 부직포에 쿠션성을 부여하여 기분 좋은 착용감을 제공한다. 또한, 폴리에틸렌 시이트를 이면 시이트(3)로서 사용하면 비교적 염가인 이 시이트가 유연하고 감촉이 좋은 촉감을 가져온다.
그리고, 본 발명의 수단 대신, 시이트 부재(2A),(3A)를 표면 시이트(2) 및 이면 시이트(3)를 연장시켜서 구성하고, 시이트 부재(3A)위에 고융점의 피복 시이트를 대어 융착할 수도 있지만, 그 경우에는 허리 둘레측부의 시이트 매수가 많아져서 뻣뻣해지고 착용감이 나빠질 염려가 있다.
본 발명에 의한 기저귀의 제조 방법에서는 날개부에 있어 표면측의 시이트 부재 보다도 이면측의 시이트 부재의 융점이 높으므로, 표면측의 시이트 부재끼리가 융착하는 온도 조건에서 이면측의 시이트 부재가 용융하여 초음파 혼 등의 가열 압연 수단에 부착하는 일이 없다. 따라서, 냉각후 융착부 표면이 꺼칠 꺼칠해져서 착용자의 피부를 자극하거나 기저귀의 외관을 손상시키는 일이 없다.

Claims (1)

  1. 전면부, 후면부 및 이들 사이에 배치된 가랑이 부분을 갖는 팬티형 1회용 기저귀를 투수성 표면 시이트, 불투수성 이면 시이트 및, 이들 양 시이트 사이에 배치된 흡수성 코어로 구성하고, 상기 전면부 및 후면부에서 상기 코어의 좌우 각 측 가장자리로부터 바깥쪽으로 뻗어있는 날개부를 상기 표면 시이트가 기저귀 안쪽에 위치하도록 마주보게 포개고, 상기 날개부의 대향측 가장자리를 가열 가압하에 융착해서 일체를 이루도록 함으로써 허리 둘레 측부를 형성하는 팬티형 1회용 기저귀의 제조 방법에 있어서, 상기 날개부를 형성하는 상기 표면 시이트 및 이면 시이트의 최소한 한쪽을 그 시이트와는 상이한 부재의 시이트로 구성함으로써, 상기 날개부에서 이면 시이트가 표면 시이트 보다도 고융점을 갖는 상태에서 상기 융착을 하는 것을 특징으로 하는 팬티형 1회용 기저귀의 제조 방법.
KR1019940010872A 1993-05-19 1994-05-19 팬티형1회용기저귀의제조방법 KR100298378B1 (ko)

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JP93-117346 1993-05-19
JP11734693A JP3177341B2 (ja) 1993-05-19 1993-05-19 パンツ型使い捨ておむつの製造方法

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GB2278993B (en) 1997-02-19
GB9410026D0 (en) 1994-07-06
US5507895A (en) 1996-04-16
EP0635248B1 (en) 1997-08-06
JPH06327714A (ja) 1994-11-29
CN1095581A (zh) 1994-11-30
DE69404779D1 (de) 1997-09-11
CN1089574C (zh) 2002-08-28
AU6313794A (en) 1994-11-24
CA2123772C (en) 1998-11-24
GB2278993A (en) 1994-12-21
DE69404779T2 (de) 1998-01-08
SG52329A1 (en) 1998-09-28
JP3177341B2 (ja) 2001-06-18
AU669065B2 (en) 1996-05-23
ES2111278T3 (es) 1998-03-01
MY112873A (en) 2001-10-31
CA2123772A1 (en) 1994-11-20
EP0635248A1 (en) 1995-01-25

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