PRESSURE-BONDED PAPER, AND METHOD FOR PRODUCING THE SAME

• Main Authors: TOSAKA MASAYA, YOSHIDA YOSHIO, YOSHIDA TADASHI, KAWASAKI KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2022
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BOOK COVERS; BOOKBINDING; CHEMISTRY; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR; DYES; FILES; IMPREGNATING OR COATING OF PAPER; LOOSE LEAVES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MOVABLE-STRIP WRITING OR READING APPARATUS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; POLISHES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SPECIAL PRINTED MATTER; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; USE OF MATERIALS AS ADHESIVES

To provide pressure-bonded paper that prevents the adhesive strength of a pressure-sensitive adhesive layer from decreasing with time, and a method for producing the same.SOLUTION: Pressure-bonded paper 10, which is a pseudo-adhesive one, has a pressure-sensitive adhesive layer 4 provided on at least one side of a substrate sheet 2. The pressure-sensitive adhesive layer contains silica particles, natural rubber-based emulsion and latex. The amount of coating on one side of the pressure-sensitive adhesive layer is 3-9 g/m2. The internal bond strength in accordance with JAPAN-TAPPI-No.18-2 is 200 mJ or more.SELECTED DRAWING: Figure 1 【課題】感圧接着剤層の接着強度の経時低下を抑制した圧着紙、及びその製造方法を提供する。【解決手段】基材シート２の少なくとも片面に感圧接着剤層４を設けてなる疑似接着可能な圧着紙１０において、感圧接着剤層は、シリカ粒子、天然ゴム系エマルジョン及びラテックスを含有し、感圧接着剤層の片面塗工量が、３～９ｇ／ｍ２であり、ＪＡＰＡＮ-ＴＡＰＰＩ-Ｎｏ．１８-２に従う内部結合強度が２００ｍＪ以上である。【選択図】図１