Abstract:
The invention relates to novel water-soluble triazines of formula ##STR1## wherein the variables are as defined in the claims, to a process for their preparation and to the use thereof for the photochemical and thermal stabilisation of dyed or undyed polyamide fiber materials.
Abstract:
Water-soluble triazine derivatives of formula (1) are disclosed. The novel compounds are representatives of sterically hindered amines (HALS stabilisers) and are suitable for enhancing the thermal and photochemical stability of undyed and dyed polyamide fibre materials.
Abstract:
A process is described for the photochemical and thermal stabilization of undyed and dyed or printed polyester fiber materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 is C.sub.1 -C.sub.12 alkyl, andn is 0 to 5.Dyeings of superior lightfastness and sublimation fastness on polyester and cellulose acetate are obtained by this process.
Abstract:
Novel cationic compounds of formula ##STR1## wherein R.sub.1 and B are as defined in claim 1, are used for photochemically stabilizing basic dyeable polyamide, polyacrylonitrile and polyester fibre materials. The preparation of the novel compounds and of the novel starting materials is also described.
Abstract:
There is disclosed a process for quenching or suppressing the fluorescence of natural or synthetic polyamide substrates treated, or to be treated, with fluorescent whitening agents, which process comprises applying to said substrates, before or after the treatment with the fluorescent whitening agent, a sulfonated UV absorber of formula ##STR1## wherein X, R.sub.1, R.sub.2 and R.sub.3 are as defined in claim 1, and fixing said UV absorber thereon.
Abstract:
A process for the photochemical stabilization of undyed and dyed polyamide or polyurethane fibre material that is characterized in that the fibre material is treated with a water soluble, organic copper, manganese or nickel complex that displays an affinity for the fibres. The polyamide or polyurethane fibre material, e.g., textile, that has been so treated retains its stretch characteristics and elasticity even after prolonged periods of illumination. In addition, in the case of dyed material, treatment with the metal complex results in a marked improvement in light-fastness.
Abstract:
The invention relates to novel zinc and aluminium phthalocyanine compounds of the formula ##STR1## wherein MePc is the zinc or aluminium phthalocyanine ring system, M is hydrogen or a salt-forming cation, R.sub.1 is hydrogen or a group of the formula --NH--CN or NH--SO.sub.2 R.sub.3 or the salts thereof, wherein R.sub.3 is alkyl, aryl or a heterocyclic ring system, R.sub.2 is a neutral, non-solubilizing substituent, n is 1 to 4 and each of m and q is 0 to 3 and p is 0 to 4. These compounds are prepared by starting from the corresponding sulfohalides. The novel compounds are used as photoactivators, especially for bleaching and removing stains from textiles and for combating microorganisms in or on organic or inorganic substrates. The invention also relates to bleaching, detergent and soaking and microbicidal compositions which contain the novel phthalocyanine compounds.
Abstract:
A process is proposed for bleaching textiles or removing stains from textiles and for combating micro-organisms in or on organic or inorganic substrates, or for protecting the latter against attack by micro-organisms, by treating the textiles or the substrates to be freed of or protected from micro-organisms with a water-soluble zinc phthalocyanine or aluminium phthalocyanine, in the presence of water and under irradiation with light, in which process a sulfonated zinc phthalocyanine or aluminium phthalocyanine which is further substituted by neutral groups which do not confer solubility in water, for example by halogen atoms or pseudo-halogens, or a mixture of these phthalocyanine compounds, is used as the water-soluble zinc phthalocyanine or aluminium phthalocyanine.Bleaching, washing and soaking agents or agents having an antimicrobial action, for carrying out the process, are also proposed, which, in addition to the active ingredient, contain, if appropriate, inorganic salts, water and also, in the case of washing agents, customary washing-agent constituents. Novel sulfonated zinc phthalocyanine and aluminium phthalocyanine compounds and their preparation are furthermore described.
Abstract:
A fabric repairing assembly is provided with an impact cutter which is operable by a plunger that is slidably mounted in an embracing housing. The assembly is further provided with a heater which includes a sleeve that slidably receives the said housing and wherein the housing can be moved to cause the plunger to press the heater against cloth undergoing repair.
Abstract:
A system is disclosed for minimizing sewing needle breakage on a zig zag sewing machine. A device is included on the sewing machine for sensing the presence of a straight stitch presser foot and, if present, for inhibiting any lateral jogging of the needle bar due to the operator inadvertently selecting a zig zag pattern.