Tissue Paper Comprising a Softening Lotion

Abstract

The present invention relates to a tissue paper comprising a lotion composition, said lotion being a liquid water-in-oil emulsion comprising (A) a hydrocarbon-based oil, (B) optionally at least one further oil, (C) 3 to 40 weight % of at least one non-ionic water-in-oil emulsifier, (D) 0.5 to 10 weight % of at least one coemulsifier based on an ethylene oxide-modified glyceride, (E) optionally 1 to 15 weight % of at least one humectant, (F) optionally up to 10 weight % of a metal soap, and (G) 6 to 35 weight % of water, wherein the weight % values relate to the total weight of the lotion composition. The lotioned tissue paper of the invention is very stable, shows excellent softness properties and is capable of efficiently transferring lotion to the skin of the user. Moreover, the lotion can be applied at relatively low temperatures and does not adversely affect the whiteness degree of the tissue paper.

Description

FIELD OF INVENTION[0001]The invention relates to a soft lotioned tissue paper, in particular, to a soft lotioned tissue paper having softness due to a specific lotion composition which penetrates tissue paper.BACKGROUND ART[0002]Softness is an important property of tissue products such as handkerchiefs, cosmetic wipes, toilet paper, serviettes / napkins, not to mention hand or kitchen towels, and it describes a characteristic tactile sensation caused by the tissue product upon contact with the skin.[0003]Although the term “softness” is generally comprehensible, it is extremely difficult to define because there is no physical method of determination and, consequently no recognized industrial standard for the classification of different degrees of softness.[0004]To be able to detect softness at least semi-quantitatively, softness is determined in practice by means of a subjective method. To do so, a “panel test” is carried out in which several trained test persons give a comparative opi...

AI Technical Summary

Benefits of technology

[0045]It was found that this lotion does not only show an excellent softness and sensory impression, but also a surprisingly good stability, even after storage at room temperature over a longer period of time and / or after medium-long storage at temperatures above room temperature. Another merit of this lotion is excellent compatibility with plant extracts and the resulting high whiteness (brightness) of tissue papers treated therewith.

[0047]Its fairly low viscosity and good penetration behaviour can be utilized for treating the inner plies of multi-ply tissue papers. Surprisingly, it was found that the lotion used in the present invention displays a viscosity minimum at preferred low application temperatures ranging from 25 to 50° C., in particular 30 to 45° C., e.g. 32 to 40° C., or 32 to 38° C.

Problems solved by technology

Although the term “softness” is generally comprehensible, it is extremely difficult to define because there is no physical method of determination and, consequently no recognized industrial standard for the classification of different degrees of softness.

The use of humectants, such as polyhydroxy compounds, in highly concentrated form, as softeners however, has the disadvantage that the humectant may, upon contact, draw too much moisture from the skin, for instance when blowing one's nose with a tissue handkerchief.

Moreover the softening effect is not yet satisfactory.

Since however, due to its solid consistency, the treatment composition remains on the surface of the tissue paper, it cannot contribute to bulk softness.

Further, water-free lotion compositions based on waxy or oily materials often feel unpleasantly greasy or oily.

Moreover, water-free lotions such as the one in WO 96 / 24723 often do not feel particularly pleasant to the skin which is due to their low moisture content.

In view of their application, these lotions are still not fully satisfying in terms of softness and / or sensory impression, processability and stability.

Although the lotion described in these WO references shows a good stability under usual conditions, stability problems may occur if it is stored for very long times or at higher temperatures.

Further, it was noted that the incorporation of plant extracts into this lotion causes colouring which lowers whiteness (brightness) of tissue paper treated with this lotion.

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