ALDEHYDE MODIFIED CELLULOSE PULP FOR THE PREPARATION OF HIGH STRENGTH PAPER PRODUCTS

PURPOSE: A cellulose pulp is provided, which is suitable for use in paper applications to provide the desired high degree of wet strength, temporary wet strength and dry strength properties and does not involve the use of separate additive components. CONSTITUTION: The paper comprises aldehyde modified cellulose pulp having from 1 to 20 mmoles of aldehyde per 100g of cellulose. Another embodiment contains the selective preparation of cellulose aldehyde and cellulose pulp aldehyde under defined oxidation conditions using a nitroxyl radical mediated aqueous oxidation procedure to provide derivatives with effective aldehyde content particularly useful in paper making. More particularly, the oxidation of cellulose or cellulose pulp is involved in an aqueous solution with an oxidant having an equivalent oxidizing power of up to 5.0g of active chlorine per 100g of cellulose and an effective mediating amount of nitroxyl radical. The reaction is carried out at a pH of about 8.0 to 10.5, and a temperature of from about 5 to 50deg.C. The resulting product has an aldehyde content of about 1 to 20 mmole/100g of pulp. 본 발명은 소정의 알데하이드 함량을 가지는 알데하이드 변성 셀룰로오스를 포함하는 제지에 관한 것이다. 본 발명은 또한 습윤강도, 일시적 습윤강도, 및 압축강도와 압축내성을 포함하는 건조강도를 가지는 제지를 제조하는데 특히 적합한 유효량의 알데하이드를 함유하는 산화 셀룰로오스 물질을 제공하기 위하여 제한된 함량의 산화제와 니트록시 라디칼 매개인자 및 규정된 반응조건을 사용하는 선택적 산화반응을 사용하여 셀룰로오스 알데하이드를 제조하는 방법에 관한 것이다.