PLASTIC COMPLEX SHEET AND METHOD OF PREPARATION THEREOF

• Main Authors: TAKAI HISASHI, YAMAKI KOICHI, HISANAKA TAKAYUKI
• Format: Patent
• Language: English; Korean
• Published: 15.06.2001
• Edition: 7
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CUTTING; CUTTING-OUT; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HAND CUTTING TOOLS; HUMAN NECESSITIES; HYGIENE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORATING; PERFORMING OPERATIONS; PROSTHESES; PUNCHING; SEVERING; SEVERING BY MEANS OTHER THAN CUTTING; STAMPING-OUT; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS

PURPOSE: To obtain an air permeable and liquid resistant composite sheet suitable to use for a disposable wearing article. CONSTITUTION: The composite sheet comprises a hydrophobic first plastic film layer 2 for forming its upper surface, a second plastic film layer 5 for forming its lower surface, and a hydrophobic intermediate fiber aggregate layer 3 connected to the layers 2, 5 between the layers 2 and 5. In this case, a plurality of stripes of first flat parts 8 spaces apart in parallel with each other and a sawtooth-like first rising parts 12 formed along edges of the parts 8 are formed on the layer 2, and second flat parts are formed on the layer 5. 본 발명은 일회용 착용 물품에 사용하기에 적합한 통기·액저항성 복합 시이트의 제공을 과제로 한다. 복합 시이트는 그 상면을 형성하는 소수성의 제1 플라스틱 필름층(2), 하면을 형성하는 제2 플라스틱 필름층(5), 제1 및 제2의 플라스틱 필름층(2, 5) 사이에 개재되어, 이들 양층(2, 5)에 접합하는 소수성의 중간 섬유 집합층(3)을 포함한다. 제1 플라스틱 필름층(2)에는 서로 이격 평행한 복수개의 제1 평탄 부분(8)과 제1 평탄 부분(8)의 가장자리부를 따른 톱니 형상의 제1 기립부(12)가 형성되어, 제2 플라스틱 필름층(5)에는 제2 평탄 부분(58)이 형성된다.