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1. (WO1998050629) METHOD FOR THE PREPARATION OF CELLULOSE PULP, CELLULOSE PULP TO BE USED IN ABSORPTION PRODUCTS, AND ABSORPTION PRODUCT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050629 International Application No.: PCT/SE1998/000585
Publication Date: 12.11.1998 International Filing Date: 30.03.1998
Chapter 2 Demand Filed: 09.11.1998
IPC:
A61L 15/18 (2006.01) ,A61L 15/28 (2006.01) ,D21C 9/00 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
18
containing inorganic materials
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22
containing macromolecular materials
28
Polysaccharides or their derivatives
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
9
After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
Applicants:
STORA KOPPARBERGS BERGSLAGS AKTIEBOLAG (publ) [SE/SE]; Åsgatan 22 S-791 80 Falun, SE (AllExceptUS)
NORLANDER, Leif [SE/SE]; SE (UsOnly)
Inventors:
NORLANDER, Leif; SE
Agent:
HYNELL, Magnus; Hynell Patenttjänst AB Patron Carls väg 2 S-683 40 Hagfors/Uddeholm, SE
Priority Data:
9701711-507.05.1997SE
Title (EN) METHOD FOR THE PREPARATION OF CELLULOSE PULP, CELLULOSE PULP TO BE USED IN ABSORPTION PRODUCTS, AND ABSORPTION PRODUCT
(FR) PROCEDE DE PREPARATION DE PATE A PAPIER, PATE A PAPIER DESTINEE A ETRE UTILISEE DANS DES PRODUITS ABSORBANTS ET PRODUIT ABSORBANT
Abstract:
(EN) The invention relates to a method for the preparation of a cellulose pulp adapted to be defibrated (fluffed) for production of absorbent material intended to be included as a constituent in absorbent products. The distinguishing features are that at least some non polymeric aluminium salt, which is water soluble, is added to a stock of cellulose fibres in a water suspension, that this fibre pulp is formed to a web which is dewatered and dried, and that its moisture content is adjusted to more than 8 % but not more than 20 % at the latest before defibration. The invention also relates to cellulose pulp which is adapted to be defibrated as well as to the defibrated cellulose pulp and absorption products produced therefrom.
(FR) L'invention concerne un procédé de préparation de pâte à papier adaptée au défibrage (flocons) et destinée à la production d'un matériau absorbant, ce matériau absorbant étant incorporé comme un constituant de produits absorbants. L'invention est caractérisée en ce qu'au moins un peu de sel d'aluminium polymérique qui est soluble dans l'eau, est ajouté à une pâte de fibres de cellulose dans une suspension d'eau; en ce que la pâte de fibres est façonnée en bande continue qui est déshydratée et séchée; et en ce que son humidité est réglée à plus de 8 % mais dans les limites de 20 % au plus tard avant le défibrage. L'invention concerne également la pâte à papier adaptée au défibrage, ainsi que la pâte à papier défibrée et les produits absorbants produits à partir de cette pâte.
front page image
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
EP0991812RU02182616AU1998067558