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    Process for achieving a uniform condition of swelling of fibrous materials during thermal treatment
    5.
    发明专利
    Process for achieving a uniform condition of swelling of fibrous materials during thermal treatment 未知

    公开(公告)号：GB978150A

    公开(公告)日：1964-12-16

    申请号：GB1097863

    申请日：1963-03-20

    Applicant: BASF AG

    Inventor： RUETTIGER WILHELM ,  RUEMENS WILHELM ,  ZEIDLER ROLF ,  GOETZ NORBERT

    IPC: D06C7/00 ,  D06M11/05 ,  D06M23/00 ,  D06P1/00 ,  D06P3/66 ,  D06P5/20

    Abstract: A uniform condition of swelling in fibrous materials during a thermal treatment is achieved by carrying out the thermal treatment in a gas which does not attack the fibrous material and which contains a definite and constant amount of water vapour which is between 1 and 500 g/cu.m but does not contain any liquid water. The gas containing a definite water vapour content may be obtained by bringing a gas which does not attack the fibres, e.g. nitrogen, carbon dioxide, combustion gases or air, into intimate contact with water or aqueous solutions whose temperature is kept constant and providing a large surface of contact between the gas and liquid phases by spraying the water of aqueous solution in fine dispersion into the flowing gas or by bubble tray columns in which the gas is forced through one or more relatively small openings into the water or aqueous solution and during ascent through the liquid, the gas bubbles absorb water vapour. The saturation of the gas with the water vapour may be carried out at a constant temperature of between -20 DEG and +95 DEG C. Purified water, river water or industrial waste waters or mixtures of water with high boiling point substances, e.g. phosphoric or sulphuric acid, sodium sulphate, sodium chloride, sodium phosphate, sodium borate, calcium chloride, sodium acetate, glycols and polyglycols may be used. After the thermal treatment of the fibrous material it may be cooled in a gas having a temperature of 10-50 DEG C. and a constant water vapour content equivalent to a relative humidity of 65-95%. The treatment may be applied to the crease proofing of cotton and regenerated cellulose fabrics with heat curable aminoplasts, formaldehyde, dihydroxy ethyl sulphone, methylol compounds of glycols, triazinones, ethylene urea and its hydroxyl or alkoxyl derivatives, propylene urea and its derivatives or acetone in the presence of alkaline, acid or potentially acid condensation catalysts, to the thermo fixation of reactive dyes on fibres, e.g. cotton, and to the dimensional stabilization of synthetic fibres, e.g. cellulose triacetate, polyamide and polyester fibres.

    Dyeing textile fibres temporarily for identification purposes
    7.
    发明专利
    Dyeing textile fibres temporarily for identification purposes 未知

    公开(公告)号：GB1047554A

    公开(公告)日：1966-11-09

    申请号：GB1511265

    申请日：1965-04-09

    Applicant: BASF AG

    Inventor： WOLF HANS ,  RUETTIGER WILHELM ,  GULBINS KLAUS

    IPC: C09B69/10 ,  D06L3/12 ,  D06L4/686 ,  D06P1/00 ,  D06P5/13

    Abstract: A water-soluble addition copolymer of: (a) a dye containing in the molecule a polymerizable group which is not part of the chromophoric group in the molecule, (b) a water-soluble comonomer containing in the molecule at least once the grouping may be used for the temporary dyeing of textile fibres (see Division D1). The copolymer may also contain (c) a water-insoluble comonomer. The comonomer dye (a) may be an azo dye or anthraquinone dye which contains in the molecule a vinyl group which is not part of the chromophoric group in the molecule. The water-soluble comonomer (b) may be an a ,b -unsaturated carboxylic acid, e.g. acrylic, methacrylic, maleic or fumaric acid, or an alkali metal salt, ammonium salt or amide thereof. The water-soluble comonomer (b) may also be an N-vinyllactam such as N-vinylpyrrolidone, or 2-aminoethyl acrylate and its salts. The water-insoluble comonomer (c) may be an ester of acrylic, methacrylic, maleic or fumaric acid, acrylonitrile, a vinyl ester, vinyl or vinylidene chloride, styrene, butadiene, ethylene or propylene.ALSO:Textile fibres in the form of filaments, staple fibres, yarns, woven fabrics &c., are temporarily dyed for identification purposes during manufacture by means of a water-soluble addition copolymer of (a), a dye containing in the molecule a polymerizable group not forming part of its chromophoric group or system in the molecule (b), a water-soluble comonomer containing in the molecule at least one group The copolymer may also contain (c) a water-in-soluble comonomer. The dye (a) may be an azo dye or an anthra-quinone dye which contains in the molecule a vinyl group which is not part of the chromophoric group or system in the molecule. The comonomer (b) may be an alpha, beta unsaturated carboxylic acid or an alkali metal salt, ammonium salt or amide thereof. The comonomer (b) may be an N-vinylpyrrolidone. The dye may be applied to the textile fibre material in the form of a dilute aqueous solution and after having served its identification purpose during subsequent processing of the material is readily washed out of the processed textile material with plain water or hot water which has been rendered weakly alkaline. The water-insoluble comonomer (c) may be ethyl acrylate or methyl methacrylate.

    10.
    发明专利
    未知

    公开(公告)号：FI802864A

    公开(公告)日：1981-03-14

    申请号：FI802864

    申请日：1980-09-12

    Applicant: BASF AG

    Inventor： RUETTIGER WILHELM ,  SUETSCH FRANZ ,  WUERZ ALBRECHT

    IPC: D06B3/10 ,  D06B23/20 ,  D06L1/14 ,  D06B

    Abstract: A process for desizing a fabric web comprising the steps of: first wetting the dry size-loaded fabric with the desizing liquor separated from a previous batch of fabric after desizing, so that the fabric, and the size adhering thereto, take up water from the desizing liquor by swelling and/or solvation, thereby increasing the concentration of the desizing liquor; separating the concentrated desizing liquor from the fabric; recycling the concentrated desizing liquor to a sizing operation; desizing the wetted fabric by a continuous fresh water wash; separating the desized fabric from the resulting desizing liquor; and recycling the desizing liquor to the first wetting step.

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