EP1167605B1 - Process and device for manufacturing an hydrophilic cotton article - Google Patents
Process and device for manufacturing an hydrophilic cotton article Download PDFInfo
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- EP1167605B1 EP1167605B1 EP01121057A EP01121057A EP1167605B1 EP 1167605 B1 EP1167605 B1 EP 1167605B1 EP 01121057 A EP01121057 A EP 01121057A EP 01121057 A EP01121057 A EP 01121057A EP 1167605 B1 EP1167605 B1 EP 1167605B1
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4266—Natural fibres not provided for in group D04H1/425
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/02—Cotton wool; Wadding
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
- D04H1/495—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet for formation of patterns, e.g. drilling or rearrangement
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2200/00—Details not otherwise provided for in A45D
- A45D2200/10—Details of applicators
- A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
- A45D2200/1018—Applicators comprising a pad, tissue, sponge, or the like comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24595—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness and varying density
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24595—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness and varying density
- Y10T428/24603—Fiber containing component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
- Y10T442/66—Additional nonwoven fabric is a spun-bonded fabric
- Y10T442/663—Hydroentangled
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
- Y10T442/666—Mechanically interengaged by needling or impingement of fluid [e.g., gas or liquid stream, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]
Definitions
- the subject of the invention is a method and a device for producing a hydrophilic cotton product intended in particular for cosmetic use: makeup and / or make-up removal of the skin.
- Patent Application No. 0 750 062 discloses skin-cleaning articles which are both gentle to the skin and sufficiently strong to allow friction on the skin without causing irritation or injury to the skin. The scrubbing action allows the removal of impurities and dead cells from the surface of the skin.
- These articles comprise a nonwoven substrate preferably hydrolized having a basis weight of 20 to 150 g / m 2 , characterized by a specific coefficient of friction.
- the substrate preferably comprises at least in part long fibers capable of disengaging from the main surface under the action of friction while remaining attached to the substrate. It may be composed of a mixture of hydrophilic and hydrophobic fibers or purely hydrophilic or purely hydrophobic fibers.
- At least one face of the article or substrate used essentially provides the cleaning function of the skin. It also serves as a support for cleansing or makeup removers such as lotions or milkshakes. In the case where the article cleaning the skin consists only of this substrate, the two faces of the article are not distinguishable and can be used indifferently from one another to clean the skin.
- European Patent Application No. 0 851 052 reveals a cotton makeup remover for cosmetic use comprising at least two layers.
- the fibers of the outer layers are longer than those of the central layer or layers.
- the thickness of the central layer or layers is preferably greater than the thickness of the outer layers.
- Such products also have no distinct faces allowing a specific use per face.
- Makeup removal cotton products are most often composed of a mixture of cotton fibers of different qualities or a mixture of cotton fibers and other fibers depending on the desired product or the manufacturing process used. Such products are of composition homogeneous throughout their thickness. Some other products consist of several layers or tablecloths. But it is clear from the above that the two outer layers are still of identical composition and can not be differentiated.
- the European patent application No. 0 826 811 proposes an absorbent nonwoven complex material comprising a flexible face and a rough face.
- This material consists of at least two superposed fibrous layers, interconnected by interpenetration of the fibers in the direction of the thickness.
- the first web consists of all or part of synthetic hot melt fibers preferably selected from the class of polyolefins and the second web is made of natural and / or artificial and / or synthetic fibers finer than the fibers of the first web.
- the synthetic fibers used in the composition of the first sheet make it possible to produce the scratching surface of the article. This scraping effect is obtained by reorientation of the synthetic fibers to present free ends or loops apparent on an outer face and by melting the free ends of the synthetic fibers.
- This product is not intended for cosmetic use but is suitable for making semi-stripping or highly absorbent wiping products.
- the invention relates to a process for producing a hydrophilic cotton product whose outer layers have on the surface streaks formed by hydraulic bonding. Hydraulic binding is achieved by means of water jets, produced by an injector comprising a perforated plate of calibrated holes.
- the subject of the invention is also a process for producing a hydrophilic cotton product from a web having at least two layers, in which a first means for hydraulically binding the fibers is applied to one face and then a second means of binding. hydraulic on the other side of the sheet.
- This method is characterized in that the jets of water of the first hydraulic binding means are spaced a distance of between 0.4 and 1.2 mm and the jets of water of the second hydraulic binding means form groups wherein the spaced jets are spaced from each other by a distance between 0.4 and 1.2 mm, the groups of jets being spaced from each other by a distance of between 1.2 and 4 mm.
- each outer layer is hydrolized by means of water jets whose axes are spaced from each other by a given distance, this distance being different between the jets used for the first layer and the jets used. for the second layer so as to obtain outer layers having on the surface streaks with a different spacing.
- the cotton layers or plies forming the product according to the invention may be of identical or different weight.
- the first layer made of soft fibers and having a low micronaire index may be of a grammage of between 10 and 40 g / m 2 and the second layer of fibers having a scraping effect may be of a grammage between 10 and 300 g / m 2 .
- the layer made of soft fibers may have a grammage of between 10 and 300 g / m 2 and the layer consisting of fibers having a scraping effect, a basis weight between 10 and 40 g / m 2 .
- the product may also have more than two layers. One or more central layers are then arranged between the two outer layers.
- the product manufacturing process consists of preparing at least two layers of cotton fibers forming the two outer layers of the product one of low micronaire index, the other micronaire index higher. The difference between the micronaire indices of the two outer layers is at least equal to 1 ⁇ g / inch.
- the webs can be made directly from hydrophilic cotton and bleached. They can also be obtained from unbleached raw cotton and then chemically treated to obtain hydrophilicity and bleaching. After formation of the plies or topping, the cotton plies are superimposed and are then associated. The plies are combined by hydrolysis, that is to say by means of high-pressure water jets combined with vacuum voicing.
- This hydrolysis step in the case of an unbleached fiber that will be chemically treated, may take place immediately after the step of impregnating the sheet as described in the European patent application no. 0 735 175 . It can also be placed in the final rinse phase according to the European patent no. 0 805 888 in the name of the plaintiff.
- Products in formats are then cut into the webs, thus associated, by any conventional means.
- the user can differentiate the soft face from the most scratching face.
- the composition of the first outer layer of cotton having a low micron number will comprise a softening agent distributed essentially at the surface of this layer.
- the hydrolysis technique already used to combine the plies and to avoid linting is used to visually differentiate the two faces of the product.
- the different layers are prepared, then superimposed; the whole is impregnated.
- the two outer layers are then hydrolized one after the other on endless cloths or cylinders.
- the hydrolysis device comprises a high pressure pump feeding an injector placed transversely to the scroll of the sheet or layer of fibers, over its entire width.
- the injector consists of a volume of water under pressure, closed by a steel plate which is perforated with calibrated holes producing jets in the form of fine high pressure water needles projected perpendicular to the surface of the water table. fibers. These fine jets entangle the fibers.
- the holes perforated in this steel strip have a diameter ranging from 100 to 200 microns, preferably 120 to 140 microns and are regularly spaced.
- the distance between the axes of two consecutive holes of the steel strip is generally between 0.5 and 3 mm, most often between 0.6 and 1 mm.
- a hydrolysis device whose blade is perforated with a large distance between the holes of 1.2 to 3 mm, preferably from 1.6 to 2.5 mm, and for the other face, a device whose blade is perforated with a distance between the holes of between 0.4 and 1.2 mm, preferably between 0.5 and 0, 8 mm. Streaks or furrows having a spacing of 1.2 to 3 mm will be more visible on the face thus treated than the streaks on the other side.
- FIG. 1 An example of a product presenting this differentiation is illustrated by the figure 1 .
- This product 21 comprises a first outer layer 22 with a micronaire index of 3.4 ⁇ g / inch and a basis weight of 25 g / m 2 , a second outer layer 23 with a micronaire index of 6.8 ⁇ g / inch and a basis weight of 25 g / m 2 and a central layer 24 of 200 g / m 2 .
- the face 25 of the outer layer 22 has ridges 26 having a spacing d 1 of 0.6 mm and the face 27 of the outer layer 23 has ridges 28 having a spacing d 2 of 2 mm.
- the increase in the distance between the holes of the perforated plate has the direct consequence of a reduction in the number of holes and therefore a lower energy input on the sheet which can not always be compensated by a increase of the water pressure in the injector.
- This reduction in the energy transmitted to the sheet can cause an increase in lint compared to the result obtained on a sheet having undergone a hydrolysis step by means of a perforated blade whose distance between the holes is small and uniform.
- a perforated plate of holes is used in a sequence, for example groups of 6 holes spaced 0.6 mm apart, each group being spaced from the next of 1.8. mm. This gives a face where the streaks are clearly visible because they appear with a wide spacing: the pitch is important on the order of 4.8 mm.
- the increase in lint is thus limited thanks to an average frequency of holes greater than that of a regularly perforated blade for example at a distance of 1.8 mm.
- the average number of holes per meter is 1250, while in the case of holes evenly spaced at a distance of 1.8 mm, this number is 555. For a given hole diameter and pressure we will be able to bring more double the energy with the perforated blade according to this sequence, compared to the regularly perforated blade at a distance of 1.8 mm.
- the figure 2 illustrates a perforated plate of holes in a sequence, here in groups of 5 holes spaced a distance e 1 equal to 0.6 mm, each sequence or group of holes being spaced from the next by a distance e 2 equal to 1 , 8 mm.
- first outer layer which has ridges with a certain spacing between 0.4 and 1.2 mm (here 0.6 mm) and a second outer layer which comprises streaks in a sequence comprising several groups of grooves, each group of grooves having a certain spacing between the grooves, this gap being between 0.4 and 1.2 mm (in this case 0.6 mm) and each group being spaced from the following group by a distance of between 1.2 and 4 mm (here 1.8 mm).
- the user thus has a cotton product whose two faces are distinguished, which retains its qualities of mechanical strength, resistance to lint, cohesion (resistance to delamination) and softness even if one of the faces has a more scratching effect than the other for cleaning.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Materials For Medical Uses (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
Description
L'invention a pour objet un procédé et un dispositif pour fabriquer un produit de coton hydrophile destiné notamment à un usage cosmétique : le maquillage et/ou le démaquillage de la peau.The subject of the invention is a method and a device for producing a hydrophilic cotton product intended in particular for cosmetic use: makeup and / or make-up removal of the skin.
La plupart des produits en coton présents sur le marché sont sous la forme de formats découpés : ronds, ovales ou carrés à démaquiller et ont des surfaces extérieures de composition fibreuse identique. Lors de l'utilisation de ces produits, il n'est pas possible de faire une différentiation d'usage entre les deux faces du produit si l'on souhaite utiliser une face particulière pour le maquillage par exemple en appliquant un liquide : lait, lotion ou crème, et l'autre face pour le démaquillage en nettoyant la peau par essuyage et légère friction.Most of the cotton products on the market are in the form of cut formats: round, oval or square to remove make-up and have outer surfaces of identical fibrous composition. When using these products, it is not possible to make a differentiation of use between the two faces of the product if it is desired to use a particular face for makeup for example by applying a liquid: milk, lotion or cream, and the other side for removing makeup by cleaning the skin by wiping and light friction.
La demande de brevet N° 0 750 062 décrit des articles nettoyant la peau, qui sont à la fois doux pour la peau et suffisamment résistants pour permettre le frottement sur la peau sans provoquer d'irritations ou de lésions sur cette dernière. L'action de frotter permet l'élimination des impuretés et des cellules mortes de la surface de la peau. Ces articles comportent un substrat en non-tissé de préférence hydrolié ayant un grammage de 20 à 150 g/m2, caractérisé par un coefficient de frottement spécifique. Le substrat comprend de préférence au moins en partie des fibres longues capables de se dégager de la surface principale sous l'action du frottement tout en restant attachées au substrat. Il peut être composé d'un mélange de fibres hydrophiles et hydrophobes ou de fibres purement hydrophiles ou purement hydrophobes.Patent Application No. 0 750 062 discloses skin-cleaning articles which are both gentle to the skin and sufficiently strong to allow friction on the skin without causing irritation or injury to the skin. The scrubbing action allows the removal of impurities and dead cells from the surface of the skin. These articles comprise a nonwoven substrate preferably hydrolized having a basis weight of 20 to 150 g / m 2 , characterized by a specific coefficient of friction. The substrate preferably comprises at least in part long fibers capable of disengaging from the main surface under the action of friction while remaining attached to the substrate. It may be composed of a mixture of hydrophilic and hydrophobic fibers or purely hydrophilic or purely hydrophobic fibers.
Au moins une face de l'article ou du substrat utilisé assure essentiellement la fonction de nettoyage de la peau. Elle sert également de support pour des produits nettoyants ou démaquillants tels que des lotions ou des laits de toilette. Dans le cas où l'article nettoyant la peau ne serait constitué que de ce substrat, les deux faces de l'article ne se distinguent pas et peuvent être utilisées indifféremment l'une de l'autre pour nettoyer la peau.At least one face of the article or substrate used essentially provides the cleaning function of the skin. It also serves as a support for cleansing or makeup removers such as lotions or milkshakes. In the case where the article cleaning the skin consists only of this substrate, the two faces of the article are not distinguishable and can be used indifferently from one another to clean the skin.
La demande de brevet européen N°
Les produits de coton de démaquillage sont le plus souvent composés d'un mélange de fibres de coton de différentes qualités ou d'un mélange de fibres de coton et d'autres fibres selon le produit recherché ou le procédé de fabrication utilisé. De tels produits sont de composition homogène dans toute leur épaisseur. Certains autres produits sont constitués de plusieurs couches ou nappes. Mais il ressort effectivement de ce qui précède que les deux couches extérieures sont toujours de composition identique et ne peuvent pas être différentiées.Makeup removal cotton products are most often composed of a mixture of cotton fibers of different qualities or a mixture of cotton fibers and other fibers depending on the desired product or the manufacturing process used. Such products are of composition homogeneous throughout their thickness. Some other products consist of several layers or tablecloths. But it is clear from the above that the two outer layers are still of identical composition and can not be differentiated.
Il existe un besoin en produits de coton présentant deux faces différentes permettant une différentiation d'usage entre les deux faces, en particulier d'usage cosmétique : une face pour le démaquillage ou nettoyage de la peau et une face pour le maquillage par application de produit sur la peau.There is a need for cotton products having two different faces allowing a differentiation of use between the two faces, in particular for cosmetic use: a face for removing makeup or cleaning the skin and a face for makeup by product application. on the skin.
Dans le domaine de l'essuyage industriel, la demande de brevet européen N°
Ce produit n'est pas destiné à un usage cosmétique mais est adapté pour réaliser des produits d'essuyage semi-décapants ou très absorbants.This product is not intended for cosmetic use but is suitable for making semi-stripping or highly absorbent wiping products.
L'invention a pour objet un procédé pour fabriquer un produit de coton hydrophile dont les couches extérieures comportent en surface des stries formées par liage hydraulique. Le liage hydraulique est réalisé au moyen de jets d'eau, produits par un injecteur comportant une lame perforée de trous calibrés. The invention relates to a process for producing a hydrophilic cotton product whose outer layers have on the surface streaks formed by hydraulic bonding. Hydraulic binding is achieved by means of water jets, produced by an injector comprising a perforated plate of calibrated holes.
Ce procédé est caractérisé par le fait que les jets d'eau du moyen de liage hydraulique forment des groupes avec des jets espacés entre eux d'une distance comprise entre 0,4 et 1,2 mm, les groupes de jets étant espacés les uns des autres d'une distance comprise entre 1,2 et 4 mm.This method is characterized in that the jets of water of the hydraulic bonding means form groups with jets spaced from each other by a distance of between 0.4 and 1.2 mm, the groups of jets being spaced apart. others with a distance between 1.2 and 4 mm.
L'invention a également pour objet un procédé de fabrication d'un produit de coton hydrophile à partir d'une nappe à au moins deux couches selon lequel on applique un premier moyen de liage hydraulique des fibres sur une face puis un second moyen de liage hydraulique sur l'autre face de la nappe. Ce procédé est caractérisé par le fait que les jets d'eau du premier moyen de liage hydraulique sont espacés d'une distance comprise entre 0,4 et 1,2 mm et les jets d'eau du second moyen de liage hydraulique forment des groupes dans lesquels les jets espacés sont espacés les uns des autres d'une distance comprise entre 0,4 et 1,2 mm, les groupes de jets étant espacés les uns des autres d'une distance comprise entre 1,2 et 4 mm.The subject of the invention is also a process for producing a hydrophilic cotton product from a web having at least two layers, in which a first means for hydraulically binding the fibers is applied to one face and then a second means of binding. hydraulic on the other side of the sheet. This method is characterized in that the jets of water of the first hydraulic binding means are spaced a distance of between 0.4 and 1.2 mm and the jets of water of the second hydraulic binding means form groups wherein the spaced jets are spaced from each other by a distance between 0.4 and 1.2 mm, the groups of jets being spaced from each other by a distance of between 1.2 and 4 mm.
Selon une caractéristique de ce procédé, chaque couche extérieure est hydroliée au moyen de jets d'eau dont les axes sont espacés les uns des autres d'une distance donnée, cette distance étant différente entre les jets utilisés pour la première couche et les jets utilisés pour la seconde couche de manière à obtenir des couches extérieures comportant en surface des stries avec un écartement différent.According to one characteristic of this method, each outer layer is hydrolized by means of water jets whose axes are spaced from each other by a given distance, this distance being different between the jets used for the first layer and the jets used. for the second layer so as to obtain outer layers having on the surface streaks with a different spacing.
D'autres caractéristiques et avantages de l'invention apparaîtront plus en détails dans la description qui suit et en référence aux dessins annexés dans lesquelles :
- la
figure 1 représente un produit présentant de plus des faces comportant des stries d'écartement différent ; et - la
figure 2 représente schématiquement la surface d'une lame perforée d'un dispositif d'hydroliage dans lequel la lame est perforée de trous suivant une séquence.
- the
figure 1 represents a product having more faces having streaks of different spacing; and - the
figure 2 schematically represents the surface of a perforated blade of a hydrolysis device in which the blade is perforated with holes in a sequence.
Les couches ou nappes de coton formant le produit selon l'invention peuvent être de grammage identique ou différent. Par exemple, la première couche constituée de fibres douces et ayant un indice micronaire faible peut être d'un grammage compris entre 10 et 40 g/m2 et la seconde couche constituée de fibres ayant un effet grattant peut être d'un grammage compris entre 10 et 300 g/m2. Inversement, la couche constituée de fibres douces peut avoir un grammage compris entre 10 et 300 g/m2 et la couche constituée de fibres ayant un effet grattant, un grammage compris entre 10 et 40 g/m2.The cotton layers or plies forming the product according to the invention may be of identical or different weight. For example, the first layer made of soft fibers and having a low micronaire index may be of a grammage of between 10 and 40 g / m 2 and the second layer of fibers having a scraping effect may be of a grammage between 10 and 300 g / m 2 . Conversely, the layer made of soft fibers may have a grammage of between 10 and 300 g / m 2 and the layer consisting of fibers having a scraping effect, a basis weight between 10 and 40 g / m 2 .
Le produit peut également comporter plus de deux couches. Une ou plusieurs couches centrales sont alors disposées entre les deux couches extérieures Le procédé de fabrication des produits, consiste à préparer au moins deux nappes de fibres de coton formant les deux couches extérieures du produit l'une d'indice micronaire faible, l'autre d'indice micronaire plus élevé. La différence entre les indices micronaires des deux couches extérieures est au moins égale à 1 µg/pouce. Les nappes peuvent être constituées directement à partir de coton hydrophile et blanchi. Elles peuvent aussi être obtenues à partir de coton brut écru, puis traitées chimiquement afin d'obtenir l'hydrophilie et le blanchiment. Après formation des nappes ou nappage, les nappes de coton sont superposées et sont ensuite associées. On associe les nappes par hydroliage, c'est à dire au moyen de jets d'eau à haute pression combinés à un exprimage par le vide. Une telle association peut être effectuée sur un dispositif commercialisé par la société ICBT-PERFOJET, Grenoble, France. Cette dernière technique permet à la fois l'association des deux nappes entre-elles et la liaison d'au moins une surface de la nappe diminuant ainsi le peluchage des produits.The product may also have more than two layers. One or more central layers are then arranged between the two outer layers The product manufacturing process, consists of preparing at least two layers of cotton fibers forming the two outer layers of the product one of low micronaire index, the other micronaire index higher. The difference between the micronaire indices of the two outer layers is at least equal to 1 μg / inch. The webs can be made directly from hydrophilic cotton and bleached. They can also be obtained from unbleached raw cotton and then chemically treated to obtain hydrophilicity and bleaching. After formation of the plies or topping, the cotton plies are superimposed and are then associated. The plies are combined by hydrolysis, that is to say by means of high-pressure water jets combined with vacuum voicing. Such an association can be carried out on a device marketed by ICBT-PERFOJET, Grenoble, France. This latter technique allows both the association of the two sheets together and the bonding of at least one surface of the sheet thus decreasing the fluffing of the products.
Cette étape d'hydroliage, dans le cas d'une fibre écrue qui va être traitée chimiquement, peut intervenir juste après l'étape d'imprégnation de la nappe comme cela est décrit dans la demande de brevet européen n°
Des produits en formats sont ensuite découpés dans les nappes, ainsi associées, par tout moyen classique.Products in formats are then cut into the webs, thus associated, by any conventional means.
En prenant et en touchant le produit, l'utilisatrice peut différencier la face douce de la face la plus grattante.By taking and touching the product, the user can differentiate the soft face from the most scratching face.
Afin d'accentuer cette différence, on peut pulvériser un agent adoucissant uniquement sur la face douce du produit. De ce fait, la composition de la première couche extérieure de coton ayant un faible indice micronaire comprendra un agent adoucissant réparti essentiellement en surface de cette couche.In order to accentuate this difference, a softening agent can be sprayed only on the soft side of the product. As a result, the composition of the first outer layer of cotton having a low micron number will comprise a softening agent distributed essentially at the surface of this layer.
Il est possible de prévoir une différentiation visuelle du produitIt is possible to predict a visual differentiation of the product
On utilise la technique d'hydroliage déjà utilisée pour associer les nappes et éviter le peluchage, pour différencier visuellement les deux faces du produit.The hydrolysis technique already used to combine the plies and to avoid linting is used to visually differentiate the two faces of the product.
Ceci permet au moyen d'une seule technique de remplir trois fonctions différentes.This allows by means of a single technique to fulfill three different functions.
Les différentes couches sont préparées, puis superposées ; l'ensemble est imprégné. Les deux couches extérieures sont ensuite hydroliées l'une après l'autre sur des toiles sans fin ou des cylindres.The different layers are prepared, then superimposed; the whole is impregnated. The two outer layers are then hydrolized one after the other on endless cloths or cylinders.
Le procédé d'hydroliage permet de traiter différemment les deux faces. En effet, les jets d'eau à haute pression utilisés pour entrelacer les fibres des couches extérieures, marquent la surface de ces couches de stries visibles à l'oeil nu, dont l'écartement correspond à la distance entre les axes des jets. Plus précisément, le dispositif d'hydroliage comprend une pompe à haute pression alimentant un injecteur placé transversalement au défilement de la nappe ou couche de fibres, sur toute sa largeur. L'injecteur consiste en un volume d'eau sous pression, fermé par une lame d'acier qui est perforée de trous calibrés produisant des jets sous la forme de fines aiguilles d'eau à haute pression projetées perpendiculairement à la surface de la nappe de fibres. Ces fins jets emmêlent les fibres. Les trous perforés dans cette lame d'acier (communément dénommée "strip") ont un diamètre allant de 100 à 200 µm de préférence 120 à 140 µm et sont régulièrement espacés. La distance entre les axes de deux trous consécutifs de la lame d'acier est en général comprise entre 0,5 et 3 mm, le plus souvent entre 0,6 et 1 mm. La position de l'injecteur étant fixe et la nappe ou couche de coton défilant sous ce dernier, on observe sur la surface de la couche, une série de stries ou sillons parallèles correspondant au passage sous les jets.The hydrolysis process makes it possible to treat the two faces differently. Indeed, the high-pressure water jets used to interlace the fibers of the outer layers, mark the surface of these layers of streaks visible to the naked eye, whose spacing corresponds to the distance between the axes of the jets. More specifically, the hydrolysis device comprises a high pressure pump feeding an injector placed transversely to the scroll of the sheet or layer of fibers, over its entire width. The injector consists of a volume of water under pressure, closed by a steel plate which is perforated with calibrated holes producing jets in the form of fine high pressure water needles projected perpendicular to the surface of the water table. fibers. These fine jets entangle the fibers. The holes perforated in this steel strip (commonly called "strip") have a diameter ranging from 100 to 200 microns, preferably 120 to 140 microns and are regularly spaced. The distance between the axes of two consecutive holes of the steel strip is generally between 0.5 and 3 mm, most often between 0.6 and 1 mm. The position of the injector being fixed and the lap or layer of cotton scrolling under the latter, there is observed on the surface of the layer, a series of grooves or parallel grooves corresponding to the passage under the jets.
Il est ainsi possible de modifier la distance entre les axes des trous de la lame d'un dispositif d'hydroliage utilisé pour le traitement d'une couche extérieure par rapport à l'autre dispositif utilisé pour le traitement de l'autre couche.It is thus possible to modify the distance between the axes of the holes of the blade of a hydrolysis device used for the treatment of an outer layer relative to the other device used for the treatment of the other layer.
Afin d'obtenir un aspect différent entre les deux faces du produit, on peut par exemple utiliser pour une face, un dispositif d'hydroliage dont la lame est perforée avec une distance importante entre les trous de 1,2 à 3 mm, de préférence de 1,6 à 2,5 mm, et pour l'autre face, un dispositif dont la lame est perforée avec une distance entre les trous comprise entre 0,4 et 1,2 mm, de préférence entre 0,5 et 0,8 mm. Les stries ou sillons ayant un écartement de 1,2 à 3 mm seront plus visibles sur la face ainsi traitée que les stries de l'autre face.In order to obtain a different appearance between the two faces of the product, it is possible for example to use, for one face, a hydrolysis device whose blade is perforated with a large distance between the holes of 1.2 to 3 mm, preferably from 1.6 to 2.5 mm, and for the other face, a device whose blade is perforated with a distance between the holes of between 0.4 and 1.2 mm, preferably between 0.5 and 0, 8 mm. Streaks or furrows having a spacing of 1.2 to 3 mm will be more visible on the face thus treated than the streaks on the other side.
On obtient alors une face finement striée et l'autre plus grossièrement.We then obtain a finely striated face and the other more roughly.
Un exemple de produit présentant cette différentiation est illustrée par la
Ce produit 21 comprend une première couche extérieure 22 d'un indice micronaire de 3,4 µg/pouce et d'un grammage de 25 g/m2, une seconde couche extérieure 23 d'un indice micronaire de 6,8 µg/pouce et d'un grammage de 25 g/m2 et une couche centrale 24 de 200 g/m2.This
La face 25 de la couche extérieure 22 présente des stries 26 ayant un écartement d1 de 0,6 mm et la face 27 de la couche extérieure 23 présente des stries 28 ayant un écartement d2 de 2 mm.The
L'utilisatrice est ainsi guidée pour discerner la face douce de la face plus grattante du produit afin d'utiliser chacune des faces du produit dans sa bonne destination : maquillage et/ou démaquillage.The user is thus guided to discern the soft side of the face more scratching product to use each side of the product in its good destination: makeup and / or make-up removal.
Cependant, l'augmentation de la distance entre les trous de la lame perforée a pour conséquence directe une diminution du nombre de trous et donc un apport d'énergie plus faible sur la nappe qu'il n'est pas toujours possible de compenser par une augmentation de la pression d'eau dans l'injecteur. Cette diminution de l'énergie transmise à la nappe peut provoquer une augmentation du peluchage par rapport au résultat obtenu sur une nappe ayant subi une étape d'hydroliage au moyen d'une lame perforée dont la distance entre les trous est faible et uniforme.However, the increase in the distance between the holes of the perforated plate has the direct consequence of a reduction in the number of holes and therefore a lower energy input on the sheet which can not always be compensated by a increase of the water pressure in the injector. This reduction in the energy transmitted to the sheet can cause an increase in lint compared to the result obtained on a sheet having undergone a hydrolysis step by means of a perforated blade whose distance between the holes is small and uniform.
Afin de limiter cette augmentation du peluchage, on utilise, conformément à l'invention, une lame perforée de trous selon une séquence, par exemple des groupes de 6 trous espacés de 0,6 mm, chaque groupe étant espacé du suivant de 1,8 mm. On obtient ainsi une face où les stries sont bien visibles car elles apparaissent avec un écartement large : le pas est important de l'ordre de 4,8 mm. L'augmentation du peluchage est ainsi limitée grâce à une fréquence moyenne de trous supérieure à celle d'une lame régulièrement perforée par exemple à une distance de 1,8 mm. Dans cet exemple de séquence, le nombre moyen de trous par mètre est de 1250, alors que dans le cas de trous régulièrement espacés à une distance de 1,8 mm, ce nombre est de 555. Pour un diamètre de trou et une pression donnés, on pourra donc apporter plus du double de l'énergie avec la lame perforée selon cette séquence, par rapport à la lame régulièrement perforée à une distance de 1,8 mm.In order to limit this increase in linting, according to the invention, a perforated plate of holes is used in a sequence, for example groups of 6 holes spaced 0.6 mm apart, each group being spaced from the next of 1.8. mm. This gives a face where the streaks are clearly visible because they appear with a wide spacing: the pitch is important on the order of 4.8 mm. The increase in lint is thus limited thanks to an average frequency of holes greater than that of a regularly perforated blade for example at a distance of 1.8 mm. In this example sequence, the average number of holes per meter is 1250, while in the case of holes evenly spaced at a distance of 1.8 mm, this number is 555. For a given hole diameter and pressure we will be able to bring more double the energy with the perforated blade according to this sequence, compared to the regularly perforated blade at a distance of 1.8 mm.
La
Ceci se traduit au niveau du produit par une première couche extérieure qui comporte des stries avec un certain écartement compris entre 0,4 et 1,2 mm (ici 0,6 mm) et une seconde couche extérieure qui comporte des stries selon une séquence comprenant plusieurs groupes de stries, chaque groupe de stries ayant un certain écartement entre les stries, cet écartement étant compris entre 0,4 et 1,2 mm (ici 0,6 mm) et chaque groupe étant espacé du groupe suivant d'une distance comprise entre 1,2 et 4 mm (ici 1,8 mm).This is reflected at the product level by a first outer layer which has ridges with a certain spacing between 0.4 and 1.2 mm (here 0.6 mm) and a second outer layer which comprises streaks in a sequence comprising several groups of grooves, each group of grooves having a certain spacing between the grooves, this gap being between 0.4 and 1.2 mm (in this case 0.6 mm) and each group being spaced from the following group by a distance of between 1.2 and 4 mm (here 1.8 mm).
L'utilisatrice dispose ainsi d'un produit de coton dont les deux faces se distinguent, qui garde ses qualités de résistance mécanique, résistance au peluchage, cohésion (résistance au délaminage) et douceur même si l'une des faces a un effet plus grattant que l'autre pour le nettoyage.The user thus has a cotton product whose two faces are distinguished, which retains its qualities of mechanical strength, resistance to lint, cohesion (resistance to delamination) and softness even if one of the faces has a more scratching effect than the other for cleaning.
Claims (6)
- Process for manufacturing an absorbent cotton product which includes a step with hydraulic binding of the fibres by means of jets of water produced by an injector which includes a perforated strip with calibrated holes, characterised by the fact that the water jets form groups in which the water jets are, in the transverse direction, spaced a distance of between 0.4 and 1.2 mm apart from one another, with the groups of water jets being spaced a distance of between 1.2 and 4 mm apart from each other:
- Manufacturing process according to claim 1 for an absorbent cotton product from a sheet with two external layers, according to which a first means of hydraulic binding of the fibres using water jets is applied on one face, then a second means of hydraulic binding using water jets on the other face of the sheet, characterised by the fact that the water jets of the first means of hydraulic binding are spaced a distance of between 0.4 and 1.2 mm apart and the water jets of the second means of hydraulic binding form groups in which the spaced out jets are spaced a distance of between 0.4 and 1.2 mm apart from each other, with the groups of jets spaced a distance of between 1.2 and 4 mm apart from each other.
- Process according to the previous claim, characterised by the fact that the jets of the first means of hydraulic binding are spaced 0.6 mm apart from each other and the jets of a group in the second means are spaced 0.6 mm apart, with the groups being spaced 1.8 mm apart.
- Process according to one of claims 2 or 3, characterised by the fact that the first layer is formed of fine fibres which exhibit a low micron index which form a soft surface and the second layer is made up of fibres which exhibit a higher micron index which form a scraping surface.
- Hydro-entangling device which includes injectors with strips perforated to form water jets, characterised by the fact that the holes in a perforated strip are arranged in groups, where the distance between groups is greater than the distance between the holes in the same group, where the distance between the jets in the same group is between 0.4 et 1.2 mm and the distance between groups is between 1.2 and 4 mm.
- Device according to claim 5, characterised by the fact that the diameter of the holes is between 100 and 200 µm and preferably between 120 and 140 µm.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9907612 | 1999-06-16 | ||
FR9907612A FR2795100B1 (en) | 1999-06-16 | 1999-06-16 | HYDROPHILIC COTTON PRODUCT WITH A SOFT FACE AND A SCRATCHING FACE |
EP00951582A EP1189531B1 (en) | 1999-06-16 | 2000-06-13 | Hydrophilic cotton product comprising a soft surface and a scraping surface |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP00951582A Division EP1189531B1 (en) | 1999-06-16 | 2000-06-13 | Hydrophilic cotton product comprising a soft surface and a scraping surface |
Publications (2)
Publication Number | Publication Date |
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EP1167605A1 EP1167605A1 (en) | 2002-01-02 |
EP1167605B1 true EP1167605B1 (en) | 2008-05-28 |
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ID=9546865
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP01121057A Expired - Lifetime EP1167605B1 (en) | 1999-06-16 | 2000-06-13 | Process and device for manufacturing an hydrophilic cotton article |
EP00951582A Expired - Lifetime EP1189531B1 (en) | 1999-06-16 | 2000-06-13 | Hydrophilic cotton product comprising a soft surface and a scraping surface |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP00951582A Expired - Lifetime EP1189531B1 (en) | 1999-06-16 | 2000-06-13 | Hydrophilic cotton product comprising a soft surface and a scraping surface |
Country Status (9)
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US (1) | US6998360B1 (en) |
EP (2) | EP1167605B1 (en) |
AT (2) | ATE248551T1 (en) |
DE (2) | DE60005004T2 (en) |
ES (2) | ES2309025T3 (en) |
FR (1) | FR2795100B1 (en) |
PL (1) | PL196841B1 (en) |
PT (1) | PT1189531E (en) |
WO (1) | WO2000076384A1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2795100B1 (en) * | 1999-06-16 | 2001-09-14 | Fort James France | HYDROPHILIC COTTON PRODUCT WITH A SOFT FACE AND A SCRATCHING FACE |
GB2357643A (en) | 1999-12-21 | 2001-06-27 | Nokia Mobile Phones Ltd | A mobile phone VCO with controlled output power level |
DE20004553U1 (en) * | 2000-03-07 | 2000-09-28 | Vliestec Ag | Bast fiber nonwoven |
DK1310226T3 (en) * | 2001-11-08 | 2006-02-13 | Pelz Gmbh & Co Kg W | Cosmetic water part |
DE20118890U1 (en) * | 2001-11-20 | 2002-01-24 | Rauscher Consumer Products Gmb | Flat product |
GB2385776B (en) * | 2002-02-28 | 2005-06-22 | Giles John Christian Beerbohm | Cleaning device |
EP1382730A1 (en) * | 2002-07-15 | 2004-01-21 | Paul Hartmann AG | Cosmetic cotton pad |
EP1424418A1 (en) * | 2002-11-27 | 2004-06-02 | Polyfelt Gesellschaft m.b.H. | Structured geotextiles and process for their production |
FR2856414B1 (en) | 2003-06-18 | 2005-09-23 | Georgia Pacific France | METHOD AND DEVICE FOR HYDROLING A FIBROUS CELLULOSIC PRODUCT TABLE |
FR2860524B1 (en) | 2003-10-02 | 2006-01-27 | Georgia Pacific France | ARTICLE FOR SKIN CARE |
DE10361339B4 (en) * | 2003-12-18 | 2015-09-03 | Paul Hartmann Ag | Cosmetic cotton pad and method of making a cosmetic cotton pad |
DE102004060623A1 (en) * | 2004-12-16 | 2006-08-03 | Paul Hartmann Ag | cotton pad |
FR2882068B1 (en) | 2005-02-14 | 2011-04-08 | Georgia Pacific France | IMPREGNE FIBROUS BUFFER |
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-
1999
- 1999-06-16 FR FR9907612A patent/FR2795100B1/en not_active Expired - Fee Related
-
2000
- 2000-06-13 DE DE60005004T patent/DE60005004T2/en not_active Expired - Lifetime
- 2000-06-13 AT AT00951582T patent/ATE248551T1/en active
- 2000-06-13 AT AT01121057T patent/ATE397112T1/en active
- 2000-06-13 PL PL357249A patent/PL196841B1/en unknown
- 2000-06-13 ES ES01121057T patent/ES2309025T3/en not_active Expired - Lifetime
- 2000-06-13 DE DE60039045T patent/DE60039045D1/en not_active Expired - Lifetime
- 2000-06-13 US US10/018,050 patent/US6998360B1/en not_active Expired - Lifetime
- 2000-06-13 PT PT00951582T patent/PT1189531E/en unknown
- 2000-06-13 EP EP01121057A patent/EP1167605B1/en not_active Expired - Lifetime
- 2000-06-13 ES ES00951582T patent/ES2204671T3/en not_active Expired - Lifetime
- 2000-06-13 WO PCT/FR2000/001635 patent/WO2000076384A1/en active IP Right Grant
- 2000-06-13 EP EP00951582A patent/EP1189531B1/en not_active Expired - Lifetime
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ATE397112T1 (en) | 2008-06-15 |
FR2795100A1 (en) | 2000-12-22 |
US6998360B1 (en) | 2006-02-14 |
PT1189531E (en) | 2004-02-27 |
ATE248551T1 (en) | 2003-09-15 |
ES2204671T3 (en) | 2004-05-01 |
PL357249A1 (en) | 2004-07-26 |
WO2000076384A1 (en) | 2000-12-21 |
DE60039045D1 (en) | 2008-07-10 |
PL196841B1 (en) | 2008-02-29 |
FR2795100B1 (en) | 2001-09-14 |
ES2309025T3 (en) | 2008-12-16 |
DE60005004T2 (en) | 2004-07-08 |
EP1189531B1 (en) | 2003-09-03 |
EP1189531A1 (en) | 2002-03-27 |
DE60005004D1 (en) | 2003-10-09 |
EP1167605A1 (en) | 2002-01-02 |
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