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Device for applying fibers to human keratin fibers

A technology of fibrous, human eyelashes, applied in the field of cosmetic treatments, capable of solving problems such as not suitable for significant elongation

Active Publication Date: 2016-09-21
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The problem of eyelash elongation is long-standing and to date the solutions offered are not suitable for achieving significant elongation, which is difficult to reproduce in a simple and quick manner without manual movement

Method used

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  • Device for applying fibers to human keratin fibers
  • Device for applying fibers to human keratin fibers
  • Device for applying fibers to human keratin fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0304] According to another alternative embodiment, the block polymer may comprise at least:

[0305] - a rigid block which is isobornyl methacrylate / isobornyl acrylate copolymer, and

[0306] - a soft block, isobutyl acrylate copolymer.

[0307] More specifically, the copolymer may comprise from 50% to 80% by weight isobornyl methacrylate / acrylate and from 10% to 20% by weight isobutyl acrylate.

[0308] The weight average molecular weight (Mw) of the copolymer preferably ranges from 80,000 to 300,000, indeed from 100,000 to 150,000.

[0309] The number average molecular weight (Mn) of the copolymer preferably ranges from 20,000 to 90,000, for example from 25,000 to 45,000.

[0310] E / Copolymers of diene and styrene, especially butadiene and styrene.

[0311] Mention may be made in particular of the styrene / butadiene copolymer sold under the trade name Pliolite S5E by Eliokem.

[0312] F / contains at least one with at least one -SO 3 M group (M represents hydrogen atom, ...

example 1

[0357] The adhesive composition described hereinafter is used in combination with fibers consisting of hair having a length of about 15 mm carried by a ribbed thermoplastic support such as image 3 shown.

[0358]

[0359] refer to figure 1 The application device 10 described above was used.

[0360] The application on the eyelashes is carried out at elevated temperature by combing the eyelashes with the element 20 loaded with adhesive and fibers F when the composition P is molten (at about 65°C).

[0361] The makeup effect obtained when applied to the outer lashes of the eyes is Figure 8 performance.

example 2

[0363] The following adhesives were tested and the application scheme of Example 1 was reproduced on samples of false eyelashes:

[0364] a)C 18 -C38 Fatty Alkyl (Hydroxystearoxy) Stearic Acid (Kester Wax K 82P)

[0365] b) Vinyl Acetate / Allyl Stearate (65 / 35) Copolymer (Mexomere PQ)

[0366] c) Poly(isobornyl methacrylate-co-isobornyl acrylate-co-isobutyl acrylate-co-acrylic acid) (Mexomere PAS)

[0367] d) the adhesive composition of example 1

[0368] From these tests, the E / VA copolymer adhesive provided the best results by making it possible to place the fibers at the free ends of the lashes (end-to-end / aligned).

[0369] Figure 7A The results obtained with respect to adhesive a), 7B to adhesive b) and 7C to adhesive c), in all three cases, therefore, the fibers are bonded to the bottom of the specimen.

[0370] Adhesive d) Correspondence Figure 7D , the fiber is bonded to the end of the specimen eyelash.

[0371] other alternatives

[0372] Although adhesives...

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PUM

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Abstract

"Apparatus for applying fibers to human keratin fibers" The invention relates to an element (20) for applying fibers (F) to human keratin fibers, comprising a liquefiable binder in solid form in a predetermined The fibers (F) are held together in such a way that the adhesive is liquefied upon application so that at least a part of the fibers can be detached from the element.

Description

technical field [0001] The present invention relates to cosmetic treatments with the potential to modify the appearance of human keratin fibers, especially but not only eyelashes. [0002] The present invention is specifically directed to physically lengthening eyelashes. Background technique [0003] In general, users of mascara wish to make their eyelashes more visible by lengthening and / or thickening. [0004] The principle of most existing products is to form a thick layer of colored deposits and also to shape the eyelashes. Makeup lashes are thicker, more lustrous and more curled as a result. [0005] Proposed mascara, which in its composition comprises fibers of a few millimeters. The fixation of the fibers at the ends of the lashes is random, and the results are often less than impressive as it is usually barely visible. [0006] Another method consists in bonding "false eyelashes" to the eyelid or bonding small tufts of few fibers. This introduces a real transfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A45D44/00A41G5/02A41G5/00
CPCA41G5/02A45D44/00A45D2200/155A45D34/042
Inventor 卡尔·佩兹克劳迪娅·巴尔巴亨利·萨曼
Owner LOREAL SA
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