Title:
【発明の名称】ベンゾトリアゾール紫外線吸収剤の安定な分散組成物
Document Type and Number:
Japanese Patent JP2986938
Kind Code:
B2
Abstract:
This invention relates to stable dispersions of benzotriazole ultraviolet (U.V.) absorbing agents utilizing modified ligninsulfonates as the dispersing agent, a method of dispersing the benzotriazole U.V. absorbing agents, a method of protecting textiles by utilizing the stable dispersions and textiles treated with the stable dispersions. Benzotriazole U.V. absorbing agents are often co-applied with disperse dyes to textiles to improve light-fastness. The U.V. absorbing agent is generally applied to the textile in the form of an aqueous dispersion, together with disperse dyes, in pressurized water systems at 110-130 DEG C. Under these high temperature conditions, ordinary dispersing agents, such as unmodified ligninsulfonates and formaldehyde condensates of naphthalenesulfonates, desorb from the U.V. absorbing agent resulting in undispersed deposits on the textile. This problem is particularly severe in applications where the textile is held in a fixed position with the dyebath solution being pumped through the textile. Under these conditions any undispersed U.V. absorbing agent is filtered out, producing deposits. Beam and package dyeing methods are examples where the problem is particularly severe.
Inventors:
TOOMASU DABURYU KUTSUKU
Application Number:
JP3488191A
Publication Date:
December 06, 1999
Filing Date:
March 01, 1991
Export Citation:
Assignee:
CHIBA SUPESHARUTEI CHEM HOORUDEINGU INC
International Classes:
C08L97/00; C09K3/00; D06M13/02; D06M13/322; D06M13/35; D06M13/352; D06M15/03; D06M15/39; D06P1/46; D06P1/56; D06P1/642; D06M101/00; D06M101/16; D06M101/30; D06M101/32; D06M101/34; (IPC1-7): C09K3/00; C08L97/00; D06M13/352; D06M15/39; D06P1/56
Domestic Patent References:
| JP6474284A | ||||
| JP56159371A |
Attorney, Agent or Firm:
Masao Okabe (11 others)