Abstract: The present invention relates to two methods for coloring hair. The first method foresees the application of a hair coloring composition to the front hair roots, that of a different composition to the back hair roots and optionally that of a third composition to the rest of the hair. The method generates a coloring effect and a masking effect of the new growth which allows a longer lasting coloring effect. The second method foresees the application of a hair coloring composition to the hair roots and that of a different composition to the remaining hair. Also disclosed are kits for performing each of these methods.

Abstract: Described herein is a method for treating and coloring hair including un-pigmented hair. The method includes (a) providing a first composition including one or more heavy metal ion sequestrants; (b) applying the first composition to the hair; (c) providing a second composition including one or more weak acids having a pKa from 2.5 to 5; (d) applying the second composition to the hair; (e) providing a third composition including one or more direct dyes chosen from nitro dye, disperse dye, cationic dye, acid dye, basic dye, neutral azo dye and mixtures thereof, and (f) applying the third composition to the hair. The third composition is able to decrease the reflectance of un-pigmented hair in a wavelength range from 530 nm to 670 nm.

Abstract: The present invention relates to a method for coloring hair wherein a hair coloring composition is applied to the hair roots. The hair coloring composition is then diluted with a dilutant component and the diluted hair coloring composition is applied to the hair lengths and tips.

Abstract: The present invention relates to hair colouring kits and methods of use thereof which comprise an oxidative component, a colouring component, a conditioner component and a colour refresher component. The kits and methods of use thereof allow for the delivery of the required initial colour and shine to the hair but which further enable the maintenance of the colour over a longer time period without the need for an additional oxidative colouring event.

Abstract: The present invention relates to hair colouring kits and methods of use thereof which comprise an oxidative component, a colouring component, a conditioner component and a colour refresher component. The kits and methods of use thereof allow for the delivery of the required initial colour and shine to the hair but which further enable the maintenance of the colour over a longer time period without the need for an additional oxidative colouring event.

Abstract: Method for measuring friction in a hair sample, comprising: (a) providing a friction member; (b) drawing it through the hair, generating a frictional noise signal; and (c) capturing the signal by a noise sensor. Device suitable for use in said method, comprising comb means having a plurality of tines and a noise sensor arranged to capture frictional noise generated by passage of comb means through the hair. System for assessing the level of damage in a hair sample, comprising: (a) defining hair categories; (b) associating with each category a standard trace representative of the frictional noise signal generated when a standard sample in that category is subjected to said method; (c) assigning the sample to one of the categories; (d) carrying out said method on the sample; (e) visually displaying the frictional noise signal generated as a trace; (f) and comparing the sample's trace with the standard trace associated with the category.

Abstract: A welding torch (2) for use in gas metal arc welding, which welding torch (2) comprises a neck portion (4), a diffuser (6) at a first end (8) of the neck portion (4), a contact tip (10) which extends from the diffuser (6), connector means (12) which is at a second end of the neck portion (4) and which is for connecting the neck portion (4) to a power cable assembly (16), and a trigger switch (114): the power cable assembly being such that it supplies electricity and gas to the welding torch (2) with the gas being for protecting welds from atmospheric contamination as the welds are made using the welding torch (2); the neck portion (4) being such that it comprises an electrical conductor (20) and a passageway (22) for the gas; the neck portion (4) being such that it comprises insulation (26) in the form of an overmoulding of a plastics material, the overmoulding being such that it also provides rigidity and impact strength to the neck portion (4); the trigger switch (114) being a snap fit in position in a sock

Abstract: Method for measuring friction in a hair sample, comprising: (a) providing a friction member; (b) drawing it through the hair, generating a frictional noise signal; and (c) capturing the signal by a noise sensor. Device suitable for use in said method, comprising comb means having a plurality of tines and a noise sensor arranged to capture frictional noise generated by passage of comb means through the hair. System for assessing the level of damage in a hair sample, comprising: (a) defining hair categories; (b) associating with each category a standard trace representative of the frictional noise signal generated when a standard sample in that category is subjected to said method; (c) assigning the sample to one of the categories; (d) carrying out said method on the sample; (e) visually displaying the frictional noise signal generated as a trace; (f) and comparing the sample's trace with the standard trace associated with the category.

Abstract: A welding torch (2) for use in gas metal arc welding, which welding torch (2) comprises a neck portion (4), a diffuser at a first end (6) of the neck portion (4), a contact tip which extends from the diffuser, and connector means which is at a second end (8) of the neck portion (4) and which is for connecting the neck portion (4) to a power cable assembly: the power cable assembly being such that it supplies electricity and gas to the welding torch (2) with the gas being for protecting welds from atmospheric contamination as the welds are made using the welding torch (2); the neck portion (4) being such that it comprises an electrical conductor (10) and a passageway for the gas; and the neck portion (4) being such that it comprises insulation (12) in the form of an overmoulding of a plastics material, the overmoulding being such that it also provides rigidity and impact strength to the neck portion (4).