Use of DIPA-Esterquat Debonder For Tissue And Fluff Pulp Manufacturing

Abstract

The present invention relates to cellulose fiber materials containing 0.01 to 0.5% by weight of ammonia compound comprising oxyalkyl radicals consisting of at least 3 carbon atoms which are biodegradable at a degree of at least 60% according the OECD 301F method and a process for producing debonded cellulose fibers.

1 . A cellulose fiber material containing 0.01 to 0.5% by weight of ammonia compounds of formula (I)
   R 1   2 N + ((A) a R 2 ) 2  B −   formula (I)
   
       wherein
 R 1  independently an alkyl group consisting of 1 to 6 carbon atoms; 
 R 2  independently an unsaturated or saturated acyl group; 
 A independently an oxyalkyl radical consisting of at least 3 carbon atoms; 
 a 1 to 3; 
 
       where the radicals R 2  consist of from 60% to 99% (w/w) of unsaturated acyl groups;
 B is an anion selected from the group consisting of chloride, acetate, methyl sulfate, and mixtures thereof; 
 
       where the compounds of the formula (I) are biodegradable at a degree of at least 60% according the OECD 301F method. 
     
     
         2 . The cellulose fiber material according  claim 1  where the ammonia compounds of formula (I) are liquid at ambient temperature, and having a melting point of melting range between −20° C. to +20° C. 
     
     
         3 . The cellulose fiber material according to  claim 1  where the ammonia compounds of formula (I) where R 2  is independently of one another identical or different acyl radicals of saturated or unsaturated fatty acids where, the fatty acids are unsaturated and selected from the group consisting of palmitoleic acid ((Z)-9-hexadecenoic acid), oleic acid ((Z)-9-hexadecenoic acid), elaidic acid ((E)-9-octadecenoic acid), cis-vaccenic acid ((Z)-11- octadecenoic acid), linoleic acid ((9Z,12Z)-9,12-octadecadienoic acid), alpha-linolenic acid ((9Z,12Z,15Z)-9,12,15-octadecatrienoic acid), gammalinolenic acid ((6Z,9Z,12Z)-6,9,12-octadecatrienoic acid), di-homo-gamma-linolenic acid ((8Z,11Z,14Z)- 8,11,14-eicosatrienoic acid), arachidonic acid ((5Z,8Z,11Z,14Z)-5,8,11,14-eicosatetraenoic acid), erucic acid ((Z)-13-docosenoic acid), nervonic acid ((Z)-15-tetracosenoic acid), ricinoleic acid, and undecenoic acid, and mixtures, such as, for example, rapeseed oil acids, soya fatty acids, sunflower fatty acids, peanut fatty acids and tall oil fatty acids. 
     
     
         4 . The cellulose fiber material according to  claim 1  where the ammonia compounds of formula (I) are liquid where the acyl radicals of fatty acid mixtures comprise oleic acid at least 70% by weight, the sum total of all fatty acids being 100% by weight. 
     
     
         5 . The cellulose fiber material according to  claim 1  where the ammonia compounds of formula (I) miscible with organic solvents, without miscibility gap at ambient temperature, between 0 to 20° C. 
     
     
         6 . The cellulose fiber material selected from paper, tissue paper, paper toweling or non-woven material made of debonded cellulose fibers according to  claim 1 . 
     
     
         7 . An absorbent material consisting of debonded cellulose fiber material according to  claim 1 . 
     
     
         8 . A method of debonding cellulose fibers using ammonia compounds of the formula (I)
   R 1   2 N + ((A) a R 2 ) 2  B −   formula (I)
   
       wherein
 R 1  independently an alkyl group consisting of 1 to 6 carbon atoms; 
 R 2  independently an unsaturated or saturated acyl group; 
 A independently an oxyalkyl radical consisting of at least 3 carbon atoms; 
 a 1 to 3; 
 where the radicals R 2  consist of 60% to 99% (w/w) of unsaturated acyl groups; 
 B is an anion selected from the group consisting of chloride, acetate, methyl sulfate, and mixtures thereof; 
 
       where the compounds of the formula (I) are biodegradable at a degree of at least 60% according the OECD 301F method. 
     
     
         9 . The method according to  claim 8  for improving the softness of cellulose fiber materials. 
     
     
         10 . The method according to  claim 8  for decreasing the density and/or increasing the porosity of cellulose fiber materials. 
     
     
         11 . A method of lubricating cellulose fibers using liquid ammonia compounds of the formula (I)
   R 1   2 N + ((A) a R 2 ) 2  B −   formula (I)
   
       wherein
 R 1  independently an alkyl group consisting of 1 to 6 carbon atoms; 
 R 2  independently an unsaturated or saturated acyl group; 
 A independently an oxyalkyl radical consisting of at least 3 carbon atoms; 
 a 1 to 3; 
 
       where the radicals R 2  consist of 60% to 99% (w/w) of unsaturated acyl groups;
 B is an anion selected from the group consisting of chloride, acetate, methyl sulfate, and mixtures thereof; 
 
       where the compounds of the formula (I) are biodegradable at a degree of at least 60% according the OECD 301F method. 
     
     
         12 . The method according to  claim 8  for modifying the absorptive properties of cellulose fiber materials. 
     
     
         13 . A process for producing debonded cellulose fibers consisting of the steps
 (a) dissolving the ammonia compounds of the formula (I) in a solvent,
   R 1   2 N + ((A) a R 2 ) 2  B −   formula (I)
 
   
       wherein
 R 1  independently an alkyl group consisting of 1 to 6 carbon atoms; 
 R 2  independently an unsaturated or saturated acyl group; 
 A independently an oxyalkyl radical consisting of at least 3 carbon atoms; 
 
       a 1 to 3;
 where the radicals R 2  consist of 60% to 99% (w/w) of unsaturated acyl groups; 
 B is an anion selected from the group consisting of chloride, acetate, methyl sulfate, and mixtures thereof; 
 
       where the compounds of the formula (I) are biodegradable at a degree of at least 60% according the OECD 301F method
 (b) diluting the ammonia compounds of the formula (I) in water 
 (c) adding the water solution (b) to cellulose fiber materials. 
 
     
     
         14 . The cellulose fiber material according  claim 1  where the ammonia compounds of formula (I) are liquid at ambient temperature and having a melting point of melting range between −20° C. to +15° C. 
     
     
         15 . The cellulose fiber material according  claim 1  where the ammonia compounds of formula (I) are liquid at ambient temperature and having a melting point of melting range between 0° C. to +10° C. 
     
     
         16 . The cellulose fiber material according to  claim 1  wherein the ammonia compounds of formula (I) are liquid where the acyl radicals of fatty acid mixtures comprise oleic acid at least 75% by weight, the sum total of all fatty acids being 100% by weight. 
     
     
         17 . The cellulose fiber material according to  claim 1  wherein the ammonia compounds of formula (I) are liquid where the acyl radicals of fatty acid mixtures comprise oleic acid at least 80% by weight, the sum total of all fatty acids being 100% by weight. 
     
     
         18 . The cellulose fiber material according to  claim 1  wherein the ammonia compounds of formula (I) are liquid where the acyl radicals of fatty acid mixtures comprise oleic acid at least 85% by weight, the sum total of all fatty acids being 100% by weight. 
     
     
         19 . The cellulose fiber material according to  claim 1  wherein the ammonia compounds of formula (I) are liquid where the acyl radicals of fatty acid mixtures comprise oleic acid at least 90% by weight, the sum total of all fatty acids being 100% by weight. 
     
     
         20 . The cellulose fiber material according to  claim 1  wherein the ammonia compounds of formula (I) are liquid where the acyl radicals of fatty acid mixtures comprise oleic acid at least 95% by weight, the sum total of all fatty acids being 100% by weight.