KR102762740B1 - 3차원 부직포 물질 및 이의 제조 방법 - Google Patents
3차원 부직포 물질 및 이의 제조 방법 Download PDFInfo
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- KR102762740B1 KR102762740B1 KR1020217019992A KR20217019992A KR102762740B1 KR 102762740 B1 KR102762740 B1 KR 102762740B1 KR 1020217019992 A KR1020217019992 A KR 1020217019992A KR 20217019992 A KR20217019992 A KR 20217019992A KR 102762740 B1 KR102762740 B1 KR 102762740B1
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Abstract
Description
도 1은 본 발명에 따른 3차원 부직포 물질의 예시적인 실시예의 상면도이다.
도 2는 도 1의 실시예로부터 취한 상세도를 제공하는 주사 전자 현미경(SEM) 이미지이다.
도 3은 3-3 선을 따라 도 1의 실시예로부터 취한 단면도를 제공하는 SEM 이미지이다.
도 4는 도 1의 부직포 물질의 천공 구역의 개방 면적 백분율을 계산하기 위해 사용되는 투과된 광을 도시하는, 도 1로부터 취한 상세도이다.
도 5a 및 도 5b는 노드를 통해 취한, 부직포의 2개의 예시적인 실시예의 단면의 Micro-CT 이미지이다.
도 5c는 HUGGIES® Little Snugglers® 기저귀로부터의 GentleAbsorb® 라이너의 단면을 제공하는 Mirco-CT이다.
도 5d는 압축 에너지 시험 방법에 따라 완료된 시험 결과를 나타내는 막대 그래프이다.
도 5e는 압축 선형성 시험 방법에 따라 완료된 시험 결과를 나타내는 막대 그래프이다.
도 6a는 3차원 부직포 물질의 대안적인 실시예의 상면도이다.
도 6b는 6B-6B 선을 따라 본 도 6a의 물질의 일부의 단면도이다.
도 6c는 도 6a의 물질의 일부의 상세도이다.
도 6d는 도 6a의 물질의 일부의 광학 이미지이다.
도 6e는 도 6a의 부직포 물질의 하나의 예시적 측면 구역의 개방 면적 백분율을 계산하기 위해 사용되는 투과된 광을 도시하는, 도 6a로부터 취한 상세도이다.
도 6f 및 도 6g는 3차원 부직포 물질의 대안적인 실시예의 상면도이다.
도 7a는 본 발명에 따른 3차원 부직포를 제조하기 위한 예시적인 장치 및 공정의 개략적인 측면도이다.
도 7b는 본 발명에 따른 3차원 부직포를 제조하기 위한 대안적인 예시적 장치 및 공정의 개략적인 측면도이다.
도 7c는 본 발명에 따른 3차원 부직포를 제조하기 위한 또 다른 대안적인 예시적 장치 및 공정의 개략적인 측면도이다.
도 7d는 도 7c의 7D-7D 선을 따라 취한 부직포 물질 및 캐리어 물질의 단면도이다.
도 8a는 도 7a 내지 도 7c의 공정에서 이용될 수 있는 형성 표면의 일부의 사시도이다.
도 8b는 도 7a 내지 도 7c의 공정에서 이용될 수 있는 대안적인 형성 표면의 일부의 상세 상면도이다.
도 9는 본 발명에 따른 3차원 부직포 물질을 포함하는 흡수 용품의 일 실시예의 사시도이다.
도 10은 명확성을 위해 일부를 절단한 도 9의 흡수 용품의 상부 평면도이다.
도 11a는 도 10에서 11-11 선을 따라서 취한 단면도이다.
도 11b는 도 11a와 유사하지만, 흡수 용품의 대안적인 실시예의 단면도이다.
도 11c는 도 11a 및 도 11b와 유사하지만, 흡수 용품의 또 다른 대안적인 실시예의 단면도이다.
도 12는 도 9의 흡수 용품의 대안적인 실시예의 상부 평면도이다.
도 13은 부직포 물질에 대하여 예시적인 접합 구성이 도시된 도 12의 흡수 용품으로부터의 예시적인 부직포 물질의 상부 평면도이다.
도 14는 도 12에서 14F-14F 선을 따라 취한 단면도이다.
도 15는 본원에 기술된 바와 같은 물질 샘플 분석 시험 방법을 수행하기 위한 예시적인 장비 및 설정의 사시도이다.
본 명세서 및 도면에서 참조 문자의 반복적인 사용은 본 발명의 동일하거나 유사한 특징 또는 요소를 나타내기 위해 의도된다.
물질 코드 | BM 고임 (%) | 개방 면적 (%) | 벌크 (mm) | 평균 개방 면적 (mm2) |
A | 35.87 | 21.91 | 2.301 | 10.52 |
B | 26.60 | 27.31 | 2.876 | 11.81 |
C | 21.35 | 28.32 | 2.935 | 15.74 |
D | 23.31 | 30.75 | 3.746 | 20.13 |
E | 24.58 | 22.32 | 3.961 | 13.79 |
F | 23.62 | 28.94 | 4.02 | 19.73 |
GentleAbsorb® | 42.57 | 0 | 1.5 | 0 |
샘플 | 이방성 값 | 표준 편차 |
도 5a의 부직포 | 1.07 | 0.04 |
도 5b의 부직포 | 1.25 | 0.09 |
GentleAbsorb® 라이너(도 5c) | 0.94 | 0.03 |
Claims (20)
- 3차원 부직포 물질을 제조하기 위한 방법으로서, 상기 방법은,
전구체 웹을 제공하는 단계로, 상기 전구체 웹은 복수의 섬유를 포함하는, 단계;
상기 전구체 웹을 형성 표면으로 전달하는 단계로, 상기 형성 표면은 복수의 형성 구멍을 갖는, 단계;
상기 형성 표면을 향하는 방향으로 복수의 유체 제트로부터 엉킴 유체의 복수의 가압된 유체 스트림을 내뿜을 수 있는 복수의 유체 제트를 갖는 유체 엉킴 장치를 제공하는 단계;
상기 형성 표면 상의 전구체 웹을 향하는 방향으로 상기 복수의 유체 제트로부터 상기 엉킴 유체의 복수의 가압된 유체 스트림을 유도하여 섬유들의 적어도 일부를 상기 복수의 형성 구멍 내로 이동시켜 제1 표면 및 상기 제1 표면에 대향하는 제2 표면을 포함하는 유체 엉킴된 웹을 생성하는 단계;
상기 형성 표면으로부터 상기 유체 엉킴된 웹을 제거해서 상기 복수의 형성 구멍 내로 이동된 섬유들 중 적어도 일부가 상기 유체 엉킴된 웹의 제1 표면 상의 베이스 평면으로부터 멀리 연장되는 복수의 노드를 제공하도록 하는 단계로, 상기 복수의 노드는 노드 분석 시험 방법에 의해 결정된 바와 같이 1.0 초과의 이방성 값을 갖는, 단계; 및
상기 유체 엉킴된 웹을 건조시켜 3차원 부직포 물질을 제공하는 단계를 포함하는, 방법. - 제1항에 있어서, 상기 형성 표면은 상기 형성 표면의 외부 표면으로부터 멀리 연장되는 복수의 돌기를 더 포함하고, 여기서 상기 형성 표면 상의 전구체 웹을 향하는 방향으로 상기 복수의 유체 제트로부터 상기 엉킴 유체의 복수의 가압된 유체 스트림을 유도하는 단계는 섬유들의 적어도 일부를 상기 형성 표면 상의 돌기들 주위에 이동시켜서 상기 유체 엉킴된 웹이 상기 형성 표면으로부터 제거될 때 상기 형성 표면 상의 돌기들 주위에 이동된 섬유들의 적어도 일부가 복수의 노드를 상호 연결하는 복수의 연결 인대 및 상기 복수의 연결 인대 및 상기 복수의 노드 사이에 형성된 복수의 개구부를 생성시키는 단계를 포함하는, 방법.
- 제1항에 있어서, 상기 형성 표면의 형성 구멍은 깊이, 큰 치수, 및 상기 큰 치수에 대한 상기 깊이의 종횡비를 포함하고, 상기 종횡비는 1.0을 초과하는, 방법.
- 제3항에 있어서, 상기 형성 구멍의 깊이는 1mm 내지 10mm인, 방법.
- 제4항에 있어서, 상기 형성 구멍의 큰 치수는 2mm 내지 10mm인, 방법.
- 제1항에 있어서, 상기 전구체 웹을 제공하는 단계는 습식 적층 공정, 발포체 적층 공정, 및 카딩 공정으로 이루어진 군으로부터 선택된 공정에 의해 완료되는, 방법.
- 제1항에 있어서,
지지 웹을 제공하는 단계;
상기 지지 웹을 상기 전구체 웹과 함께 상기 형성 표면에 전달하는 단계; 및
상기 지지 웹과 상기 전구체 웹에서 상기 엉킴 유체의 복수의 가압 유체 스트림을 동시에 유도하는 단계를 더 포함하는, 방법. - 제1항에 있어서, 상기 복수의 섬유는 합성 섬유 및 바인더 섬유를 포함하고, 여기서 상기 유체 엉킴된 웹을 건조시키는 것은 상기 바인더 섬유를 활성화시키는, 방법.
- 3차원 부직포 물질을 제조하기 위한 방법으로서, 상기 방법은,
전구체 웹을 제공하는 단계로, 상기 전구체 웹은 복수의 섬유를 포함하는, 단계;
상기 전구체 웹을 형성 표면으로 전달하는 단계로, 상기 형성 표면은 복수의 형성 구멍을 가지고, 상기 복수의 형성 구멍은 각각 깊이, 큰 치수, 및 상기 큰 치수에 대한 상기 깊이의 종횡비를 포함하고, 상기 종횡비는 1.0 내지 3.25인, 단계;
상기 형성 표면을 향하는 방향으로 복수의 유체 제트로부터 엉킴 유체의 복수의 가압된 유체 스트림을 내뿜을 수 있는 복수의 유체 제트를 갖는 유체 엉킴 장치를 제공하는 단계;
상기 형성 표면 상의 전구체 웹을 향하는 방향으로 상기 복수의 유체 제트로부터 상기 엉킴 유체의 복수의 가압된 유체 스트림을 유도하여 섬유들의 적어도 일부를 상기 복수의 형성 구멍 내로 이동시켜 제1 표면 및 상기 제1 표면에 대향하는 제2 표면을 포함하는 유체 엉킴된 웹을 생성하는 단계;
상기 형성 표면으로부터 상기 유체 엉킴된 웹을 제거해서 상기 복수의 형성 구멍 내로 이동된 섬유들 중 적어도 일부가 상기 유체 엉킴된 웹의 제1 표면 상의 베이스 평면으로부터 멀리 연장되는 복수의 노드를 제공하도록 하는 단계; 및
상기 유체 엉킴된 웹을 건조시켜 3차원 부직포 물질을 제공하는 단계를 포함하는, 방법. - 제9항에 있어서, 상기 형성 표면은 상기 형성 표면의 외부 표면으로부터 멀리 연장되는 복수의 돌기를 더 포함하고, 여기서 상기 형성 표면 상의 전구체 웹을 향하는 방향으로 상기 복수의 유체 제트로부터 상기 엉킴 유체의 복수의 가압된 유체 스트림을 유도하는 단계는 섬유들의 적어도 일부를 상기 형성 표면 상의 돌기들 주위에 이동시켜서 상기 유체 엉킴된 웹이 상기 형성 표면으로부터 제거될 때 상기 형성 표면 상의 돌기들 주위에 이동된 섬유들의 적어도 일부가 복수의 노드를 상호 연결하는 복수의 연결 인대 및 상기 복수의 연결 인대 및 상기 복수의 노드 사이에 형성된 복수의 개구부를 생성시키는 단계를 포함하는, 방법.
- 제10항에 있어서, 상기 형성 표면의 외부 표면으로부터 멀리 연장되는 상기 복수의 돌기는, 상기 형성 표면의 외부 표면으로부터 더 멀리 연장될 때 상기 복수의 돌기가 단면적이 감소하도록 구성되는, 방법.
- 제9항에 있어서, 상기 형성 구멍의 깊이는 1mm 내지 10mm인, 방법.
- 제9항에 있어서, 상기 형성 구멍의 큰 치수는 2mm 내지 10mm인, 방법.
- 제9항에 있어서, 상기 전구체 웹을 제공하는 단계는 습식 적층 공정, 발포체 적층 공정, 및 카딩 공정으로 이루어진 군으로부터 선택된 공정에 의해 완료되는, 방법.
- 제9항에 있어서, 상기 복수의 섬유는 합성 섬유 및 바인더 섬유를 포함하고, 여기서 상기 유체 엉킴된 웹을 건조시키는 것은 상기 바인더 섬유를 활성화시키는, 방법.
- 삭제
- 3차원 부직포 물질을 제조하기 위한 방법으로서, 상기 방법은,
전구체 웹을 제공하는 단계로, 상기 전구체 웹은 복수의 섬유를 포함하는, 단계;
상기 전구체 웹을 형성 표면으로 전달하는 단계로, 상기 형성 표면은
길이방향 및 측방향;
상기 길이방향으로 연장되는 복수의 레인으로 배열된 복수의 형성 구멍;
상기 형성 표면의 외부 표면으로부터 멀리 연장되고 상기 길이방향으로 연장되는 복수의 레인으로 배열되는 복수의 돌기로서, 상기 길이방향으로 연장되는 돌기들의 복수의 레인의 절반 초과는 상기 길이방향으로 연장되는 형성 구멍들의 가장 가까운 인접 레인으로부터 측방향으로 벗어나는, 상기 복수의 돌기; 및
상기 복수의 형성 구멍 및 상기 복수의 돌기 사이의 복수의 연결 인대 형성 구역을 포함하는, 단계;
상기 형성 표면을 향하는 방향으로 복수의 유체 제트로부터 엉킴 유체의 복수의 가압된 유체 스트림을 내뿜을 수 있는 복수의 유체 제트를 갖는 유체 엉킴 장치를 제공하는 단계;
상기 형성 표면 상의 전구체 웹을 향하는 방향으로 상기 복수의 유체 제트로부터 상기 엉킴 유체의 복수의 가압된 유체 스트림을 유도하여 섬유들의 적어도 일부를 상기 복수의 형성 구멍 내로 이동시키고 섬유들의 적어도 일부를 상기 형성 표면 상의 돌기 주위에 이동시켜 제1 표면 및 상기 제1 표면에 대향하는 제2 표면을 포함하는 유체 엉킴된 웹을 생성하는 단계;
상기 형성 표면으로부터 상기 유체 엉킴된 웹을 제거해서 상기 복수의 형성 구멍 내로 이동된 섬유들 중 적어도 일부가 상기 유체 엉킴된 웹의 제1 표면 상의 베이스 평면으로부터 멀리 연장되는 복수의 노드를 제공하고 상기 형성 표면 상의 돌기들 주위에서 연결 인대 형성 구역 내로 이동된 섬유들 중 적어도 일부가 복수의 노드를 상호 연결하는 복수의 연결 인대와 상기 복수의 연결 인대와 상기 복수의 노드 사이에 형성된 복수의 개구부를 제공하도록 하는 단계; 및
상기 유체 엉킴된 웹을 건조시켜 3차원 부직포 물질을 제공하는 단계를 포함하고,
상기 길이방향으로 연장되는 형성 구멍들의 복수의 레인의 절반 초과는, 상기 길이방향으로 연장되는 형성 구멍들의 각각의 레인 내의 길이방향으로 인접한 형성 구멍들의 중심들 사이에 그려진 선이 0도 내지 20도의 길이방향에 대한 각도를 형성하도록 실질적으로 길이방향으로 연장되도록 구성되는, 방법. - 3차원 부직포 물질을 제조하기 위한 방법으로서, 상기 방법은,
전구체 웹을 제공하는 단계로, 상기 전구체 웹은 복수의 섬유를 포함하는, 단계;
상기 전구체 웹을 형성 표면으로 전달하는 단계로, 상기 형성 표면은
길이방향 및 측방향;
상기 길이방향으로 연장되는 복수의 레인으로 배열된 복수의 형성 구멍;
상기 형성 표면의 외부 표면으로부터 멀리 연장되고 상기 길이방향으로 연장되는 복수의 레인으로 배열되는 복수의 돌기로서, 상기 길이방향으로 연장되는 돌기들의 복수의 레인의 절반 초과는 상기 길이방향으로 연장되는 형성 구멍들의 가장 가까운 인접 레인으로부터 측방향으로 벗어나는, 상기 복수의 돌기; 및
상기 복수의 형성 구멍 및 상기 복수의 돌기 사이의 복수의 연결 인대 형성 구역을 포함하는, 단계;
상기 형성 표면을 향하는 방향으로 복수의 유체 제트로부터 엉킴 유체의 복수의 가압된 유체 스트림을 내뿜을 수 있는 복수의 유체 제트를 갖는 유체 엉킴 장치를 제공하는 단계;
상기 형성 표면 상의 전구체 웹을 향하는 방향으로 상기 복수의 유체 제트로부터 상기 엉킴 유체의 복수의 가압된 유체 스트림을 유도하여 섬유들의 적어도 일부를 상기 복수의 형성 구멍 내로 이동시키고 섬유들의 적어도 일부를 상기 형성 표면 상의 돌기 주위에 이동시켜 제1 표면 및 상기 제1 표면에 대향하는 제2 표면을 포함하는 유체 엉킴된 웹을 생성하는 단계;
상기 형성 표면으로부터 상기 유체 엉킴된 웹을 제거해서 상기 복수의 형성 구멍 내로 이동된 섬유들 중 적어도 일부가 상기 유체 엉킴된 웹의 제1 표면 상의 베이스 평면으로부터 멀리 연장되는 복수의 노드를 제공하고 상기 형성 표면 상의 돌기들 주위에서 연결 인대 형성 구역 내로 이동된 섬유들 중 적어도 일부가 복수의 노드를 상호 연결하는 복수의 연결 인대와 상기 복수의 연결 인대와 상기 복수의 노드 사이에 형성된 복수의 개구부를 제공하도록 하는 단계; 및
상기 유체 엉킴된 웹을 건조시켜 3차원 부직포 물질을 제공하는 단계를 포함하고,
상기 길이방향으로 연장되는 돌기들의 복수의 레인의 절반 초과는, 상기 길이방향으로 연장되는 돌기들의 각각의 레인 내의 길이방향으로 인접한 돌기들의 중심들 사이에 그려진 선이 0도 내지 20도의 길이방향에 대한 각도를 형성하도록 실질적으로 길이방향으로 연장되도록 구성되는, 방법. - 제17항 또는 제18항에 있어서, 상기 형성 표면은 한 쌍의 측면 구역 형성 영역을 포함하도록 추가로 구성되고, 상기 한 쌍의 측면 구역 형성 영역은 제1 측면 구역 형성 영역 및 제2 측면 구역 형성 영역을 포함하고, 여기서 상기 복수의 형성 구멍, 상기 복수의 돌기, 및 상기 복수의 연결 인대 형성 구역을 포함하는 형성 표면의 영역은 상기 제1 측면 구역 형성 영역과 상기 제2 측면 구역 형성 영역 사이에 배치되는, 방법.
- 제19항에 있어서, 상기 제1 측면 구역 형성 영역 및 상기 제2 측면 구역 형성 영역은 각각 복수의 천공을 포함하고, 여기서 상기 복수의 천공의 평균 면적은 상기 복수의 형성 구멍의 평균 면적보다 작은, 방법.
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