US2156455A - Manufacture of felt - Google Patents

Manufacture of felt Download PDF

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Publication number
US2156455A
US2156455A US81540A US8154036A US2156455A US 2156455 A US2156455 A US 2156455A US 81540 A US81540 A US 81540A US 8154036 A US8154036 A US 8154036A US 2156455 A US2156455 A US 2156455A
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United States
Prior art keywords
fibers
felt
wool
mixture
artificial
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Expired - Lifetime
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US81540A
Inventor
Kleine Johannes
Brennecke Walter
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IG Farbenindustrie AG
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IG Farbenindustrie AG
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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
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • 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
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/08—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres and hardened by felting; Felts or felted products
    • 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
    • D04H1/4258—Regenerated cellulose 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
    • D04H1/42—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
    • D04H1/4274—Rags; Fabric scraps
    • 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
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0096—Multicolour dyeing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8214—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing ester and amide groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8219—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and amide groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8271—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing amide and nitrile groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/14—Wool
    • D06P3/16—Wool using acid dyes
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/75—Processes of uniting two or more fibers
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S524/925—Natural rubber compositions having nonreactive materials, i.e. NRM, other than: carbon, silicon dioxide, glass titanium dioxide, water, hydrocarbon or halohydrocarbon

Definitions

  • Our present invention relates to the manufacture of felt.
  • a further object of the invention consists in the provision of a felt which has improved mechanical properties in comparison with a felt consisting of a mixture of wool and cellulose hydrate fibers.
  • a felt of good quality which is capable of carbonization may be produced from a mixture of animal fibers such as wool or hairs, with artificial fibers from organic polymerization products.
  • polyvinyl esters for example polyvinyl chloride, polyvinyl acetate, after-chlorinated polyviny
  • these bodies have a comparatively low softening point, so that they acquire a certain amount of stickiness at the temperature usual in the manufacture of felt, thus imparting an internal strength to the 45 fibrous felt, which could not be obtained with fibers consisting of cellulose.
  • the proportion 61' artificial fiber in the mixture may be selected as desired. Very useful mixtures are those containing from 15 to 25 per cent of artificial fibers from an organic polymerization product. However, the admixture of artificial fibers may be raised to 30 or even 50 per cent. It is also possible to use a mixture of artificial fiber from an organic polymerization product and rayon staple fibers. In this case the admixture of artificial fibers should not surpass 50 per cent. In the mixture of artificial fibers there are preferred equal parts of cellulose hydrate fibers and artificial fibers from an organic polymerization product. but the amount of artificial fibers from an organic polymerization product should not be less than 10 per cent. If fibers of cellulose hydrate are present in the mixture, the wool should be carbonized before manufacturing the felt, if carbonization of the wool is necessary.
  • the dyeing properties of the artificial fibers in question differ from those of wool. If uniform dyeing of the felt made from the mixed fibers is desired, it is preferable to dye both kinds of fibers, or at least one of them, beforemaking the mixture.
  • the difference in the dyeing capacity existing between wool and the resin fibers may be made use of for the production of mottled felt. Spinning artificial fibers together with white wool and subsequently top-dyeing with wool dyestuffs produces an uniformly mottled felt of excellent quality.
  • Example 1 3-200 grams of a mixture of equal parts of wool waste and South African wool and 800 grams of artificial fibers from after-chlorinated polyvinyl chloride are mixed and carded in the usual manner, again mixed and oiled. After thorough working, the mixture is passed into a carding machine and wound in the usual manner on a lap drum. The lap formed on the drum is cut and subdivided into equal portions of 350 to 400 grams. The weighed quantities are fed at right angles to the direction of the fibers to a carding cone. The double cone thus produced is out along the base of the cone and felted on a plate felting machine.
  • the felt After it has been fulled in dilute sulfuric acid the felt is carbonized in the usual manner and passed to the fulling beaters, and the wool dyed in the usual manner. In general, the polyvinyl chloride fibers remain undyed in this operation.
  • the finishing operations are those usual in the hat-making industry.
  • Example 2.-80 per cent of wool are thoroughly mixed by carding them s everal times with 10 per cent of rayon staple fibers and 10 per cent of fibers from polyvinyl chloride, and carded to slivers on a wool carding machine, which when worked up on a plate felting machine yield a felt which has the same properties as a felt from pure wool.
  • Example 3.70 parts of wool, 15 parts of rayon staple fibers and 15 parts of artificial fibers from polyvinylchloride are mixed by carding and the mixture is worked up as described in the preceding example.
  • Example 4.'70 parts of wool are mixed with 20 parts of rayon staple fibers and 10 parts of artificial fibers from polyvinyl chloride and worked up to a felt in form of plates in the usual manner.
  • a soft pliable felt resembling a felt consisting entirely of wool, but having a different affinity for acid wool dyestufis and a substantially improved internal strength compared with a felt comprising wool and cellulose hydrate fibers, said felt consisting of a mixture of wool and at most the same quantity of thermoplastic fibers from a polymerization product of organic unsaturated compounds selected from the group consisting of polyvinylesters, polyvinylethers and mixtures of these compounds, chlorinated rubber, and polymerization products of mixtures of vinyl compounds with dienes.

Description

Patented May 2, 1939 v UNITED STATES MANUFACTURE OF FELT I Johannes Kleine, Dessau, and Walter Brennecke, Donnagen, Germany, assignors to I. G. Farbenindustrie Aktiengesellschaft, Frankfort-onthe-Main, Germany No Drawing. Application May 23, 1936, Serial No. 81,540. In Germany May 25, 1935 1 Claim.
Our present invention relates to the manufacture of felt.
It is known to produce a felt in which part of the animal fibers has been substituted by artificial fibers of cellulose hydrate. However, it has been found that an addition of artificial fibers of cellulose hydrate such as are obtained according to the copper oxide ammonia or the viscose process is only possible in certain cases because these fibers do not stand the carbonization usual in the manufacture of wool felt.
It is therefore an object of the present invention to provide an improved felt consisting of a mixture of wool and thermoplastic artificial fibers, which will withstand carbonization.
A further object of the invention consists in the provision of a felt which has improved mechanical properties in comparison with a felt consisting of a mixture of wool and cellulose hydrate fibers.
Further objects will become apparent from the following detailed specification.
According to this invention a felt of good quality which is capable of carbonization may be produced from a mixture of animal fibers such as wool or hairs, with artificial fibers from organic polymerization products. Fibers made from polymerization products of an unsaturated organic compound, such as polyvinyl esters, for example polyvinyl chloride, polyvinyl acetate, after-chlorinated polyvinyl chloride, polyacrylic acid esters, mixed polymerizates of the above bodies, or lower polyvinyl ethers such as polyvinylisobutylether, polypropylvinylether, chlorocautchouc, mixtures of these ethers or of the ethers with the esters, or mixtures of the polyvinyl compounds with diene compounds, such as butadiene, methylbutadiene, dimethylbutadiene, chloropropene are especially valuable for this purpose. For making felt it is particularly advantageous that these bodies have a comparatively low softening point, so that they acquire a certain amount of stickiness at the temperature usual in the manufacture of felt, thus imparting an internal strength to the 45 fibrous felt, which could not be obtained with fibers consisting of cellulose.
The proportion 61' artificial fiber in the mixture may be selected as desired. Very useful mixtures are those containing from 15 to 25 per cent of artificial fibers from an organic polymerization product. However, the admixture of artificial fibers may be raised to 30 or even 50 per cent. It is also possible to use a mixture of artificial fiber from an organic polymerization product and rayon staple fibers. In this case the admixture of artificial fibers should not surpass 50 per cent. In the mixture of artificial fibers there are preferred equal parts of cellulose hydrate fibers and artificial fibers from an organic polymerization product. but the amount of artificial fibers from an organic polymerization product should not be less than 10 per cent. If fibers of cellulose hydrate are present in the mixture, the wool should be carbonized before manufacturing the felt, if carbonization of the wool is necessary.
It could not be foreseen that artificial fibers made from organic polymers of high molecular weight would withstand the usual steps in the process of felting and fulling and would yield a useful mixture with wool. The resinous fibers have the property of shrinking more strongly than wool in the felting and fulling processes. In
fany cases this is an advantage.
The dyeing properties of the artificial fibers in question differ from those of wool. If uniform dyeing of the felt made from the mixed fibers is desired, it is preferable to dye both kinds of fibers, or at least one of them, beforemaking the mixture. The difference in the dyeing capacity existing between wool and the resin fibers may be made use of for the production of mottled felt. Spinning artificial fibers together with white wool and subsequently top-dyeing with wool dyestuffs produces an uniformly mottled felt of excellent quality.
The following examples illustrate the invention:
Example 1.--3200 grams of a mixture of equal parts of wool waste and South African wool and 800 grams of artificial fibers from after-chlorinated polyvinyl chloride are mixed and carded in the usual manner, again mixed and oiled. After thorough working, the mixture is passed into a carding machine and wound in the usual manner on a lap drum. The lap formed on the drum is cut and subdivided into equal portions of 350 to 400 grams. The weighed quantities are fed at right angles to the direction of the fibers to a carding cone. The double cone thus produced is out along the base of the cone and felted on a plate felting machine. After it has been fulled in dilute sulfuric acid the felt is carbonized in the usual manner and passed to the fulling beaters, and the wool dyed in the usual manner. In general, the polyvinyl chloride fibers remain undyed in this operation. The finishing operations are those usual in the hat-making industry.
Example 2.-80 per cent of wool are thoroughly mixed by carding them s everal times with 10 per cent of rayon staple fibers and 10 per cent of fibers from polyvinyl chloride, and carded to slivers on a wool carding machine, which when worked up on a plate felting machine yield a felt which has the same properties as a felt from pure wool.
Example 3.70 parts of wool, 15 parts of rayon staple fibers and 15 parts of artificial fibers from polyvinylchloride are mixed by carding and the mixture is worked up as described in the preceding example.
Example 4.'70 parts of wool are mixed with 20 parts of rayon staple fibers and 10 parts of artificial fibers from polyvinyl chloride and worked up to a felt in form of plates in the usual manner.
What we claim is:
A soft pliable felt, resembling a felt consisting entirely of wool, but having a different affinity for acid wool dyestufis and a substantially improved internal strength compared with a felt comprising wool and cellulose hydrate fibers, said felt consisting of a mixture of wool and at most the same quantity of thermoplastic fibers from a polymerization product of organic unsaturated compounds selected from the group consisting of polyvinylesters, polyvinylethers and mixtures of these compounds, chlorinated rubber, and polymerization products of mixtures of vinyl compounds with dienes.
JOHANNES KLEINE.
I WALTER BRENNECKE.
US81540A 1935-05-25 1936-05-23 Manufacture of felt Expired - Lifetime US2156455A (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423827A (en) * 1945-01-12 1947-07-15 Albany Felt Co Tennis ball cover cloth
US2459804A (en) * 1942-08-01 1949-01-25 American Viscose Corp Shaped felted structures
US2459803A (en) * 1939-10-23 1949-01-25 American Viscose Corp Feltlike products
US2476282A (en) * 1945-01-09 1949-07-19 American Viscose Corp Textile products and production thereof
US2476283A (en) * 1945-01-09 1949-07-19 American Viscose Corp Textile products and methods of producing them
US2504608A (en) * 1943-04-29 1950-04-18 Electric Storage Battery Co Woven synthetic resin storage battery retainer with ribs
US2526125A (en) * 1942-05-25 1950-10-17 American Viscose Corp Paper products and methods of making the same
US2528793A (en) * 1946-01-26 1950-11-07 Kendall & Co Cotton felt and method of making the same
US2687363A (en) * 1950-09-16 1954-08-24 Fred W Manning Method and apparatus for the production of filaments and nonwoven fabrics
US2692420A (en) * 1946-03-12 1954-10-26 Celanese Corp Treatment of fibrous material
US2741108A (en) * 1951-09-20 1956-04-10 Beaunit Mills Inc Flame resistant fabric
US2959838A (en) * 1956-08-13 1960-11-15 American Viscose Corp Rayon swab
US3023075A (en) * 1954-10-26 1962-02-27 British Celanese Fibrous material
US3060548A (en) * 1959-09-16 1962-10-30 Western Felt Works Method of making felt
US3066359A (en) * 1957-11-05 1962-12-04 Chicopee Mfg Corp Methods and apparatus for producing fibrous webs
DE1220141B (en) * 1954-07-09 1966-06-30 Du Pont Process for the production of non-woven felt-like material from synthetic threads and / or fibers

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459803A (en) * 1939-10-23 1949-01-25 American Viscose Corp Feltlike products
US2526125A (en) * 1942-05-25 1950-10-17 American Viscose Corp Paper products and methods of making the same
US2459804A (en) * 1942-08-01 1949-01-25 American Viscose Corp Shaped felted structures
US2504608A (en) * 1943-04-29 1950-04-18 Electric Storage Battery Co Woven synthetic resin storage battery retainer with ribs
US2476282A (en) * 1945-01-09 1949-07-19 American Viscose Corp Textile products and production thereof
US2476283A (en) * 1945-01-09 1949-07-19 American Viscose Corp Textile products and methods of producing them
US2423827A (en) * 1945-01-12 1947-07-15 Albany Felt Co Tennis ball cover cloth
US2528793A (en) * 1946-01-26 1950-11-07 Kendall & Co Cotton felt and method of making the same
US2692420A (en) * 1946-03-12 1954-10-26 Celanese Corp Treatment of fibrous material
US2687363A (en) * 1950-09-16 1954-08-24 Fred W Manning Method and apparatus for the production of filaments and nonwoven fabrics
US2741108A (en) * 1951-09-20 1956-04-10 Beaunit Mills Inc Flame resistant fabric
DE1220141B (en) * 1954-07-09 1966-06-30 Du Pont Process for the production of non-woven felt-like material from synthetic threads and / or fibers
US3023075A (en) * 1954-10-26 1962-02-27 British Celanese Fibrous material
US2959838A (en) * 1956-08-13 1960-11-15 American Viscose Corp Rayon swab
US3066359A (en) * 1957-11-05 1962-12-04 Chicopee Mfg Corp Methods and apparatus for producing fibrous webs
US3060548A (en) * 1959-09-16 1962-10-30 Western Felt Works Method of making felt

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