发明名称 |
METHOD OF IMPROVING PROPERTIES OF CELLULOSE-BASED FIBROUS SHEET-FORMED MATERIALS |
摘要 |
A method of improving surface strength, fibre tear or linting of a sheet-formed fibrous material formed from an aqueous slurry of cellulose fibre comprising spraying a face of the material with a chemical formulation comprising or consisting of a polymer containing at least two carboxylic groups per molecule and aliphatic mono-di- or three- basic carboxylic acid with molecular weight between 40-500Da, in an aqueous carrier, keeping the coated face at a temperature of 50 º C or more for a time sufficient to obtain the desired improvement including drying of the material. The chemical formulation is sprayed on the wet laid sheet-formed material at the wet end of a paper machine in an amount of from 1% to 5% by weight of the sheet-formed material in a dry state. Also disclosed is a sheet-formed fibrous material obtainable or obtained by the method and a laminated product comprising the sheet-formed fibrous material and a polymer foil. Further disclosed is the use of the chemical formulation for improving surface strength, fibre tear or linting of a sheet-formed fibrous material. |
申请公布号 |
WO2011039325(A3) |
申请公布日期 |
2011.05.26 |
申请号 |
WO2010EP64594 |
申请日期 |
2010.09.30 |
申请人 |
ORGANOCLICK AKTIEBOLAG;SAMEC, JOSEPH;ENQUIST, KARL;CORDOVA, ARMANDO |
发明人 |
SAMEC, JOSEPH;ENQUIST, KARL;CORDOVA, ARMANDO |
分类号 |
D21H17/14;C08B15/10;C08L1/02;C09D101/10;D21H17/15;D21H17/18;D21H17/24;D21H17/25;D21H17/28;D21H17/37;D21H17/43;D21H19/12;D21H21/18;D21H23/24;D21H23/28;D21H23/50 |
主分类号 |
D21H17/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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