PEELING SHEET, METHOD FOR MANUFACTURING PEELING SHEET, AND LAMINATED BODY

• Main Authors: JIYOSHIMARU YASUSHI, TANIGUCHI TOSHIAKI
• Format: Patent
• Language: English; Japanese
• Published: 09.03.2017
• Subjects: HUMAN NECESSITIES; HYGIENE; IMPREGNATING OR COATING OF PAPER; 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; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

PROBLEM TO BE SOLVED: To provide a peeling sheet using a paper base material which improves easy peelability from an adhesive layer, and is excellent in handleability.SOLUTION: There is provided a peeling sheet which has a peeling agent layer, a first resin layer, a paper base material and a second resin layer in this order and is curled in a direction to be convex to the peeling agent layer side, where in a state after at least a part of the peeling agent layer of the peeling sheet cut so as to have a width of 30 mm is mounted on a horizontal flat surface so as to come in contact with the horizontal flat surface, and is left standing for 8 hours on conditions that 23°C and relative humidity of 50%, an average distance between a pair of curl end sides facing so as to be separated at a width of 30 mm and the horizontal flat surface is 2 mm or more.SELECTED DRAWING: Figure 1 【課題】本発明は、紙基材を用いた剥離シートであって、粘着剤層からの易剥離性が高められ、取り扱い性に優れた剥離シートを提供することを課題とする。【解決手段】本発明は、剥離剤層、第１の樹脂層、紙基材、及び第２の樹脂層をこの順で有し、剥離剤層側に凸となる向きにカールしていることを特徴とする剥離シートであって、幅３０ｍｍにカットした剥離シートの剥離剤層の少なくとも一部を水平平坦面に接触するように載置し、２３℃、相対湿度５０％の条件下に８時間静置した後の状態において、幅３０ｍｍを隔てて対向する一対のカール端辺と、前記水平平坦面との平均距離が２ｍｍ以上である剥離シートに関する。【選択図】図１