EP0678606A1 - Absorbierender Filz - Google Patents

Absorbierender Filz Download PDF

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Publication number
EP0678606A1
EP0678606A1 EP19950400685 EP95400685A EP0678606A1 EP 0678606 A1 EP0678606 A1 EP 0678606A1 EP 19950400685 EP19950400685 EP 19950400685 EP 95400685 A EP95400685 A EP 95400685A EP 0678606 A1 EP0678606 A1 EP 0678606A1
Authority
EP
European Patent Office
Prior art keywords
fibers
sheet
needling
absorbent product
products
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19950400685
Other languages
English (en)
French (fr)
Inventor
François Decrocq
Pascale Blanckaert
Michel Conche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orgel
Original Assignee
Orgel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9403832A external-priority patent/FR2718160B1/fr
Priority claimed from FR9408051A external-priority patent/FR2721948B3/fr
Application filed by Orgel filed Critical Orgel
Publication of EP0678606A1 publication Critical patent/EP0678606A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D04H1/4209—Inorganic fibres
    • 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
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • 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
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • 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
    • D04H1/52—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 applying or inserting filamentary binding elements
    • 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
    • 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
    • D04H18/02—Needling machines with needles

Definitions

  • the invention relates to an inorganic fibrous material serving as an absorbent product, in particular for hygiene products such as dressings, diapers, pads or towels for technical wiping and the like.
  • Materials intended for this type of use must meet multiple conditions. They must, in particular, have a high absorption capacity. It is also necessary, for hygiene products, that these materials are completely harmless. In technical wiping applications, products must resist the agents to which they are subjected. Often they must also be completely non-flammable and it is generally required that these products do not allow fiber or dust to escape during their use. In addition, apart from the qualities linked to their use, these products must be inexpensive.
  • the inventors have shown that it is possible, in order to constitute satisfactory absorbent products, to use fibers of slightly larger diameter while maintaining a suitable liquid retention capacity.
  • the advantage of using these fibers is that they are obtained by following production methods which are very substantially less expensive.
  • Another way to strengthen cohesion is to fix the fibers with each other by a binder distributed on the fibers at the time of their manufacture.
  • a binder distributed on the fibers at the time of their manufacture.
  • the use of these compositions can lead to appearance defects, in particular in the form of dark spots due to the localized accumulation of this binder during manufacture. Without modifying the absorbent characteristics, such stains are not accepted by users.
  • the presence of the binder reduces the non-flammable nature of these products.
  • the fibers used to constitute the absorbent products have a slightly larger diameter
  • other difficulties may arise in order to obtain very homogeneous sheets.
  • One difficulty consists, in particular, in obtaining directly on the fiber production line a sheet made up of the entanglement of these fibers, a sheet which has variations in basis weight all the more sensitive than the fibers in question. are longer.
  • This difficulty in the distribution of the fibers in the sheet is directly linked to the traditional manufacturing process in which a strong gas stream is used in the drawing step, this gaseous stream leading the fibers onto a conveyor belt. reception serving as a sieve.
  • the inventors have shown that the cohesion of the sheet of mineral fibers could be very significantly improved by performing a needling operation, that is to say by subjecting the web of fibers collected to the action of needles which, by sinking into the thickness of the web, cause a local entanglement of the fibers, or a treatment similar to needling which consists in "sewing" the felt by means of an added thread.
  • a needling operation that is to say by subjecting the web of fibers collected to the action of needles which, by sinking into the thickness of the web, cause a local entanglement of the fibers, or a treatment similar to needling which consists in "sewing" the felt by means of an added thread.
  • the individual fibers constituting the felt are maintained by the presence of fibers or a thread which penetrates the felted sheet in the direction of its thickness.
  • the distance between the needling points is advantageously between 3 and 20 mm and, most frequently, between 4 and 10 mm.
  • too large a spacing leads to less influence on the characteristics of the sheet.
  • too small a distance between the needling points can lead to too great a reorientation of the fibers contrary to the good entanglement which is at the origin of the improvement of the desired properties.
  • the stitches can have the same spacing as the needling stitches but, due to the presence of a continuous thread, these stitches can also be slightly more spaced. They are thus advantageously spaced 5 to 15 mm apart. Consequently, it is appropriate for each type of fiber, each thickness of ply, to determine by a few tests which distance between the needling or sewing points leads to the best result, within the limits which are indicated above.
  • the entanglement resulting from the needling operation is more or less important depending on whether the needles also have a configuration which more or less entrains the fibers. It is traditional to use needles having hooks, harpoons or the like which involve in their movement in the thickness of the sheet of fibers which then remain in a substantially different orientation from that which they had originally in the sheet as it is constituted on the conveyor ensuring reception. These rearrangements are all the more important as the hooks, harpoons and the like are more marked on the needles used.
  • Needling can be carried out by operating either on only one side of the ply, or preferably by treating both sides. This makes it possible to better guarantee that the surface fibers of the two faces of the sheet participate well in the rearrangement-entanglement and do not dissociate from the mass of the sheet.
  • a thread In the felt sewing operations, a thread is used which exhibits, depending on the uses considered, high resistance to chemical agents, perfect non-flammability or great harmlessness like the absorbent sheet itself or even a set of several of these properties.
  • Usual yarns will in particular be glass yarns or yarns of synthetic polymers such as polypropylene or polyester yarns which exhibit very high resistance even when they are extremely thin. Other synthetic or natural fibers can also be used for these operations.
  • son of 8 to 60 tex will be used.
  • the needling of the glass fiber layers is accompanied, as we have seen, by a rather brutal rearrangement of the fibers.
  • the friction that occurs in these operations between the needles and the fibers, or between the fibers themselves, if they are not properly controlled can lead to the rupture of these fibers.
  • Such ruptures do not promote the desired entanglement and can be accompanied by the formation of undesirable dust.
  • the inventors propose the use of a size which, applied to the fibers, "lubricates" the friction points.
  • the sizing quantities used are usually extremely small relative to the mass of fiber in the sheet. These proportions are much lower than those used when, to fix the fibers together, a binder is used. In the latter case, depending on the characteristics of the fibers and the destination of the products, it is usual to use between 2 and 10% by weight of binder.
  • a film of very thin lubricating agent deposited on the fibers is sufficient. If the coating is very homogeneous, a content as low as 0.1 or 0.2% by weight of the mass of the fibers may be sufficient. As a rule, the proportions of lubricants do not exceed 1% of the total mass of the fibers.
  • the lubricant used must not interfere with the absorbent qualities of the products. These agents must necessarily exhibit good hydrophilicity. This character is all the more essential as it facilitates the application in fine films on the fibers by the use of very dilute solutions to coat the fibers.
  • the lubricants concerned must be completely harmless so that even traces of these products do not cause any discomfort for the user.
  • suitable lubricating agents may consist of esters of fatty acids and of polyglycols.
  • They may also be polycondensates of products carrying other functional groups than the alcohol groups, in particular amino groups also having a pronounced hydrophilic character.
  • FIG. 1 shows a mode of needling a layer of fibers 1.
  • This layer 1 is subjected to the combined action of two needling tools 2 and 2 ′ animated by movements in the thickness of the layer 1.
  • the tools 2 and 2 ' are provided with series of needles 3, 3' arranged at regular intervals, as indicated above, and these needles are provided with barbs 4, 4 'which catch the fibers when the needles 3, 3' penetrate in the tablecloth.
  • the needles 3, 3 ′ only penetrate part of the thickness of the sheet.
  • the needling is carried out on either side of the ply, to ensure that the upper and lower needling points are inserted in a regular network so that each face of the tablecloth is well maintained after the operation.
  • the mode represented is only indicative; it is also possible to carry out needling from one side.
  • FIG. 2 The technique leading to the continuous production of the sheet used according to the invention is illustrated, schematically, in FIG. 2.
  • the conditions for forming the fibers are chosen so as to obtain an abundant production and of relatively moderate cost.
  • the conditions of implementation are such that the quantities produced by centrifuge are not, ordinarily, less than 10 tonnes / day.
  • the quantity of fibers which depends, in part, on the quantity produced is such that the average diameter is usually established between 1 and 4 micrometers.
  • the type of technique of the aforementioned European patent is preferred, it is nevertheless possible to produce the fibers by other known techniques such as those in which the filaments are produced from rows of stationary dies, the filaments being entrained and drawn by gaseous jets blowing in the direction of flow.
  • the fibers 12 produced, whatever the technique used, are carried by turbulent gas streams to a receiving conveyor 14.
  • a suction is made from the boxes 15 located under the conveyor 14. The latter is formed by a mesh which retains the fibers and lets pass the gases which are evacuated.
  • the mode of formation of the sheet 16 leads to a distribution on the conveyor 14 which is all the more irregular the thinner the sheet and the longer fibers, whereas it is necessary for the good uniformity of the product that the distribution either very regular over the entire conveyor 14.
  • the ply 16 is usually calendered to regularize its thickness. It is also necessary to reduce the thickness to the dimensions close to those which will be found in the finished product. In practice, the thicknesses of the dressings, wiping products or the like do not exceed 5 cm and are usually less than 3 cm. It goes without saying that minimum thickness is necessary to give these products a certain absorption capacity. Ordinarily, the products according to the invention have a thickness of 5 mm or more.
  • a certain mass of fibers per unit area is also necessary in order to be able to obtain a coherent sheet.
  • the mass in question is variable, in particular depending on the thickness. It is not normally less than 200 g / m2 and is usually situated, for the uses and thicknesses considered, between 200 and 800 g / m2 and, advantageously, between 300 and 500 g / m2.
  • the sheet of fibers 16 previously obtained as has just been indicated in the representation of FIG. 2, is then conducted under the needling tools represented at 26.
  • the following description is made with reference to this particular mode.
  • the sewing of the absorbent fiber web could be substituted for this needling, except for the reservations which have been made previously with regard to the usefulness of a size of the web.
  • a single tool operating on one side is shown, for simplicity.
  • the needling of the ply 16 by the needles 27 is preferably carried out continuously on the same production line.
  • the lubrication treatment which allows needling is advantageously carried out by spraying the lubricant products into the chamber 13 on the path of the fibers 12.
  • spray coating is all the more effective as the sprayed product is, for the part which does not immediately attach to the fibers, filtered by the fibers already placed on the conveyor and retained by them.
  • the needled and dry product 24 is then conditioned to the dimensions corresponding to the unit products considered.
  • the means used to make these cuts are traditional means for this type of product, namely saws, guillotines, high pressure jets.
  • the choice is fixed depending on the case, striving as far as possible to minimize the formation of dust and respecting the dimensional tolerances for the finished products.
  • the product offers a certain tensile strength due to the mode of driving the web.
  • the tensile strength must not be less than 20 gF / g and preferably not less than 30 gF / g. This resistance is necessary to allow a satisfactory speed of the line. Typical speeds are, for example, around 25 m / min and can be up to 50 m / min.
  • the unitary products formed from elements cut from the needled fiber web are most often rectangular in shape. Products of various shapes can also be cut using, in particular, cookie cutters.
  • the hygiene products according to the invention are most often coated with a permeable envelope which constitutes the element directly in contact with the body.
  • the envelope must be made of a perfectly harmless material. This material, apart from the fact that it is permeable, is chosen so as not to adhere to the skin. It is also advantageous for it to be soft to the touch.
  • the envelope also prevents the dispersion of fibers which could be detached from the sheet. In fact, in the absence of a binding product, the fibers are only held in the web by their initial entanglement which completes and amplifies the needling or sewing operation. If these conditions are normally sufficient to give the sheet a good overall cohesion, it is still possible to detach some fibers in the various manipulations of the product. The envelope must oppose the dispersion of these fibers.
  • non-woven products made up of polyolefin fibers which have the advantage of being fused to one another and which do not require any adhesive are advantageously used to constitute these envelopes.
  • polyolefins offer excellent inertia.
  • the nature of the envelope may be different on the two sides of the product.
  • the nature of the envelope for example a non-woven polypropylene web, may be the same and the hydrophobic nature of one of the faces obtained by adding a hydrophobic agent such as silicones.
  • the envelope is advantageous insofar as it opposes the detachment of fragments of the felt or isolated fibers.
  • the presence of the envelope must however remain compatible with the requirements attached to the absorbent felt itself.
  • the envelope when it exists, be inert to the chemical agents in contact with which it is brought.
  • the products considered are not incompatible with temporary contact with solvents or slightly aggressive agents such as surfactants, alkaline agents, etc.
  • a needled or sewn felt which is not wrapped.
  • the method of laying the envelope is traditional.
  • the absorbent pre-cut elements are deposited, for example on a first strip of nonwoven, making them smaller in size than the strip of nonwoven and a second veil is deposited on the elements.
  • the joining of two webs, in the case of polyolefin webs, can then be obtained by simple heat sealing.
  • the tablecloth was produced using the manufacturing technique proposed by patent EP-B-91 866 using a traditional glass composition for this manufacturing method: SiO 60-70% 64.1 Al2O3 1-5% 3.4 Na2O 10-20% 15.7 Fe2O3 0-1% - K2O 0-3% 1.15 WHERE 2-6% 4.5 CaO 5-10% 7.2 F 0-3% - MgO 1-5% 3
  • the first values correspond to traditional domains, the second to those of the example considered.
  • Production is carried out at a rate of 17 tonnes / day / centrifuge.
  • the fibers produced measured for their fineness, show, according to traditional measurement, a micronaire of 3/5 g (corresponding, approximately, to an average diameter of the order of 3.5 micrometers).
  • the fibrous web is collected under a thickness of the order of 50 mm and with a mass per unit area of 500 g / m2 and an apparent density of 10 kg / m3.
  • a spraying of the lubricating composition consisting of fatty acid polyglycol esters, colloidal silica, is carried out, all in dispersion in water.
  • the spray mixture consists of 18.5% esters, 2% silica and 79.5% water. The amount sprayed corresponds to 0.2% by weight of esters relative to the weight of the fibers.
  • the ply is subjected to needling.
  • the distance between the needling points is 10 mm.
  • needling not only results in a rearrangement in the thickness, but also appreciably changes the dimensions of the product.
  • the prepared product is wrapped in a polypropylene veil and tested for its absorption capacity according to the Scandinavian standard SCAN C-33.80.
  • the principle of the method is as follows: the sample placed on a grid is placed in contact with water. After absorption, the grid is raised. The difference in weight measured allows the determination of the amount absorbed.
  • the absorption capacity is approximately 14-15 g of water per gram of fibers. This capacity is better than that of the fluff which, under the same conditions, is of the order of 9 to 10 g / g. It is all the better as the product under consideration, as a result of the needling treatment, resists compression well and its capacity is not much modified under the usual conditions by moderate pressure. Conversely, the fluffs are very sensitive to compression and tend to sag under the load of the absorbed liquid.
  • the products according to the invention therefore have a good set of absorption qualities for a modest production cost.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
EP19950400685 1994-03-31 1995-03-28 Absorbierender Filz Withdrawn EP0678606A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9403832A FR2718160B1 (fr) 1994-03-31 1994-03-31 Feutre absorbant pour produits d'Hygiène.
FR9403832 1994-03-31
FR9408051 1994-06-30
FR9408051A FR2721948B3 (fr) 1994-06-30 1994-06-30 Feutre absorbant

Publications (1)

Publication Number Publication Date
EP0678606A1 true EP0678606A1 (de) 1995-10-25

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Application Number Title Priority Date Filing Date
EP19950400685 Withdrawn EP0678606A1 (de) 1994-03-31 1995-03-28 Absorbierender Filz

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EP (1) EP0678606A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2316399A3 (de) * 2009-10-29 2013-07-17 McNeil-PPC, Inc. Aus selektiv genähtem Vliesstoffnetz geformtes Tampon

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151018A2 (de) * 1984-01-26 1985-08-07 JOHNSON & JOHNSON Absorbierendes laminiertes Material
WO1986000570A1 (en) * 1984-07-05 1986-01-30 Lydall, Inc. Integral textile composite fabric
WO1993015246A1 (en) * 1992-01-24 1993-08-05 Isover Saint-Gobain An agent as a processing aid, a mineral wool needle-felt, a crimped mineral wool product, and methods for producing them

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151018A2 (de) * 1984-01-26 1985-08-07 JOHNSON & JOHNSON Absorbierendes laminiertes Material
WO1986000570A1 (en) * 1984-07-05 1986-01-30 Lydall, Inc. Integral textile composite fabric
WO1993015246A1 (en) * 1992-01-24 1993-08-05 Isover Saint-Gobain An agent as a processing aid, a mineral wool needle-felt, a crimped mineral wool product, and methods for producing them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2316399A3 (de) * 2009-10-29 2013-07-17 McNeil-PPC, Inc. Aus selektiv genähtem Vliesstoffnetz geformtes Tampon

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