Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
  • D02G3/04—Blended or other yarns or threads containing components made from different materials
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
  • D02G3/442—Cut or abrasion resistant yarns or threads
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
  • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
  • D10B2201/01—Natural vegetable fibres
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
  • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
  • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
• • 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.]
  • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
  • Y10T442/425—Including strand which is of specific structural definition

Definitions

• the present invention relates to a knitted fabric, in particular a knitted fabric, which is a garment which protects the wearer against cuts and has a good wearing comfort.
• Such knits e.g. in the form of a glove are described in WO 2008/017400.
• the knits described there, especially gloves are usually worn directly on the skin and combine a good cut protection with a high tactility, which is a component of wearing comfort, which is particularly desirable when the wearer has to deal sensitively with small and delicate components.
• the wearing comfort which arises with the wearer of the knitwear depends to a great extent on the physical stress to which the wearer is exposed.
• the wearer If the wearer is exposed to only moderate physical stress, in which he perspires only slightly, the sweat produced evaporates already within the sweat ducts of the skin and thus produces an increased water vapor partial pressure in the microclimate between the skin surface and the inner surface of the knitted fabric no liquid water, so that the wearer does not feel a significant decrease in wearing comfort as long as in the microclimate between the skin surface and the inner surface of the knit no condensation of water vapor to water occurs. If, on the other hand, the wearer is exposed to a constant, heavy physical exertion, in which he sweats profusely, liquid water forms on the surface of the skin, which is detrimental to the wearer's comfort.
• the present invention has the object to provide a knitted fabric which has the same good cut resistance as the knitwear described in the prior art, but increases the wearing comfort.
• a staple fiber component A comprising aramid staple fibers
• a staple fiber component B comprising at least one kind of seed fiber or staple fiber prepared by tearing or cutting algae enriched lyocell fiber or a mixture of at least one kind of seed fiber with staple fiber made by tearing or cutting algae enriched lyocell fiber, wherein
• a and B form a mixed staple fiber yarn AB, which is made of a homogeneous mixture of A and B, at least two of the mixed staple fiber AB are twisted into a twist ZAB, and at least one of the yarns ZAB are processed into knit I.
• a knitted fabric I according to the invention exhibits a higher wearing comfort in the form of a lower water vapor transmission resistance compared to a comparative knit, which differs from the knitted fabric I according to the invention only in that its yarns and twists only the staple fiber component A and no staple fiber component B. exhibit.
• the lower the water vapor transmission resistance of a material the higher its ability to allow water vapor to permeate.
• the ability of a material to permeate water vapor is also referred to as the "breathability" of the material.
• knitted fabric I a higher breathability than the corresponding comparison knit.
• the surprisingly increased breathability of the knitted fabric I according to the invention leads to an only moderate physical stress of the wearer that the emerging from the sweat channels of the skin water vapor is transported away faster by the knitted fabric I invention than by the comparison knit, so that the partial pressure of water vapor in the microclimate between the skin surface and the inside of the knitted fabric I according to the invention is lower than when the comparative knitted fabric is worn. Consequently, the knitted fabric I according to the invention causes its wearer to experience on his skin a drier and therefore more comfortable wearing feel than the wearer of the comparative knitted fabric.
• the knitted fabric I according to the invention can not prevent its wearer from sweating profusely, so that liquid water is formed on its skin surface.
• the surprisingly increased breathability of the knitted fabric I according to the invention causes, after the transition from excessive to moderate physical stress, the sweat produced on the skin to evaporate faster than the comparative knitted fabric by the knitted fabric I according to the invention, so that the wearer of the knitted fabric I according to the invention experiences a dry state Skin surface, ie increased wearing comfort, achieved faster than the wearer of the comparison knitted fabric.
• the knitted fabric I according to the invention surprisingly causes an increase in the wearing comfort with the same cutting resistance.
• the staple fiber component A of the knitted fabric I according to the invention comprises arabic staple fibers.
• the staple fiber component A of the knitted fabric I according to the invention preferably consists of aramid staple fibers.
• aramid staple fibers means staple fibers produced by tearing or cutting aramid filament yarns, ie filament yarns whose filament-forming polymer is an aramid, ie an aromatic polyamide wherein at least 85% of the amides (-CO-NH -) bonds are bonded directly to two aromatic rings.
• the aramid staple fibers are p-aramid staple fibers, more preferably poly (p-phenyleneterephthalamide) staple fibers, ie staple fibers produced from a filament yarn, whose filament-forming polymer consists of the mol: mol polymerization of p-phenylenediamine and terephthalic acid dichloride results.
• Ip aramid staple fibers made from a filament yarn whose filament-forming polymer is a copolymer containing small amounts of other diamines and / or other dicarboxylic acid chlorides incorporated in the polymer chain in addition to p-phenylenediamine and terephthalic acid dichloride.
• the other diamines and / or dicarboxylic acid chlorides may be incorporated in the polymer chain in a proportion of up to 10 mol%.
• the length of the aramid staple fibers of staple fiber component A of the knitted fabric I according to the invention is preferably in the range of 20 mm to 180 mm, more preferably in the range of 30 mm to 120 mm and most preferably in the range of 30 mm to 100 mm.
• the staple fiber component B of the present invention comprises at least one kind of seed fiber or staple fiber made by tearing or cutting algae-enriched lyocell fiber or a mixture of at least one kind of seed fiber with staple fiber made by tearing or cutting algae-enriched lyocell fiber.
• the at least one type of seed fiber comprises kapok fibers, cotton fibers, acon fibers or a mixture of two or three of said seed fibers, in particular a mixture of kapok fibers and cotton fibers, wherein the weight ratio kapok fibers: cotton fibers preferably in the range from 50:50 to 5:95, and more preferably in the range of from 30:70 to 5:95.
• Kapok fibers obtained from the kapok tree are cellulose hollow fibers having a length distribution ranging from fiber lengths of about 15 mm to fiber lengths of about 40 mm.
• Cotton fibers are seed hairs of cultured Gossypium species, the fibers having a length distribution, and the length distribution ranging from fiber lengths of about 10 mm to fiber lengths of about 55 mm.
• Acon fibers are seed hairs of Asclepiadaceae and Apocynaceae, the fibers having a length distribution and ranging in length from fiber lengths of about 10 mm to fiber lengths of about 30 mm, more rarely up to fiber lengths of about 40 mm.
• the fabric I according to the invention in the staple fiber component B comprises staple fibers produced by tearing or cutting algae-enriched lyocell fibers.
• Such staple fibers DE under the name Seacell ® of SeaCell GmbH, Rudolstadt, available.
• Lyocell fibers are cellulosic man-made fibers that are made by regenerating cellulose in a fiber form dissolved in an organic solvent (see MAN-MADE FIBER YEAR BOOK, September 1997, Fiber Tables according to P. -A. KOCH, "Lyocell Fibers", pages the porous structure of Seacell ® staple fibers 41 -47).
• a Seacell ® staple fibers comprehensive inventive fabric I exerts a skin-reeling and skin-healing effect, creating a positive effect on skin diseases such Psoriasis and atopic dermatitis is achieved.
• skin-friendly algae constituents for example of mineral salts such as Ca and Mg salts and of vitamins such as vitamin E to the skin
• a Seacell ® staple fibers comprehensive inventive fabric I exerts a skin-reeling and skin-healing effect, creating a positive effect on skin diseases such Psoriasis and atopic dermatitis is achieved.
• the staple fibers produced by tearing or cutting of enriched algae lyocell fibers used in one embodiment of the knitted fabric I of the invention preferably have a length in the range from 20 to 180 mm, more preferably in the range of 30 mm to 120 mm and very particularly preferably in the range of 30 mm to 100 mm.
• the mixture of the at least one type of seed fiber with the staple fibers produced by ripping or cutting algae-enriched lyocell fibers comprises a mixture of cotton fibers with staple fibers made by rupturing or cutting algae-enriched lyocell fibers.
• the weight ratio in the mixture of cotton fibers with staple fibers prepared by rupturing or cutting algae-enriched lyocell fibers is in the range of 5:95 to 95: 5 and more preferably in the range of 20:80 to 80 : 20.
• the fabric I according to the invention contains the staple fiber component A and the staple fiber component B in a weight ratio of A: B, preferably in the range of 99: 1 to 50: 50, more preferably in the range of 97: 3 to 60: 40 and most preferably in Range from 95: 5 to 70: 30.
• the aramid staple fibers of the staple fiber component A may consist of 100% by weight of newly produced aramid staple fibers.
• the aramid staple fibers of the staple fiber component A may be 100% by weight of recycled aramid staple fibers. Further, the aramid staple fibers of the staple fiber component A may be any of a mixture of newly made and recycled aramid staple fibers.
• the twine ZAB is produced from at least two of the mixed staple fiber yarns AB, each of the mixed staple fiber yarns AB being produced from a homogeneous mixture of A and B.
• homogeneous mixture means that the predetermined mixing ratio of A: B is recovered substantially in each volume element of the mixture of A and B - and consequently also substantially in each volume element of mixed staple fiber yarn AB produced from the homogeneous mixture.
• the mixed staple fiber yarn AB has a titer in the range from 10 tex to 1000 tex, particularly preferably in the range from 12 to 500 tex and very particularly preferably in the range from 14 to 100 tex.
• preferably 2 to 10 and particularly preferably 2 to 8 of the mixed staple fiber yarns AB are twisted into a twisted yarn ZAB.
• preferably 1 to 10 and particularly preferably 1 to 8 of the yarns ZAB are processed into the knitted fabric I according to the invention.
• the knitted fabric I is knitted with a needle spacing, gg, the needle spacing preferably being in the range from 5 gg to 18 gg and particularly preferably in the range from 7 gg to 18 gg.
• the knitted fabric I is knitted with a mesh density in series, MiR, miR preferably being in the range from 2 to 15 and more preferably in the range from 3 to 12.
• the knitted fabric is knitted with a stitch density in rods, MiS, MiS preferably being in the range from 2 to 15 and more preferably in the range from 3 to 12.
• the advantageous combination of cut resistance and comfort in the knitted fabric I according to the invention is noticeable in any type of clothing in which the knitted fabric I according to the invention can be worn on the body.
• the knit fabric I according to the invention is a garment which is designed as a glove, protective sleeve, hood or shirt.
• the object underlying the present invention is further achieved by a knitted fabric Il
• a staple fiber component A comprising aramid staple fibers and / or polyolefin staple fibers
• a staple fiber component B comprising at least one kind of seed fiber or staple fiber produced by tearing or cutting algae-enriched lyocell fibers or a mixture of at least one kind of seed fibers with staple fibers prepared by tearing or cutting algae enriched lyocell fibers, wherein
• A is a staple fiber yarn RA made exclusively of A
• B is a staple fiber yarn RB made exclusively of B
• at least two of the staple fiber yarns RA are twisted into a yarn ZA
• at least two of the staple pile yarns RB are twisted into a yarn ZB
• the fabric II is made by plating at least one of the yarns ZA with at least one of the yarns ZB.
• a knit fabric II according to the invention exhibits a higher wearing comfort in the form of a lower water vapor transmission resistance compared to a comparative knit, which differs from the knit fabric II according to the invention only in that its yarns and twines only the staple fiber component A and no staple fiber component B exhibit.
• polyolefin staple fibers means staple fibers which are produced by tearing or cutting polyolefin filament yarns, ie filament yarns whose filament-forming polymer is a polyolefin, preferably a polypropylene and more preferably a polyethylene
• the polyolefin stopples are preferably polypropylene staple fibers and particularly preferably polyethylene staple fibers.
• polyethylenes are understood as meaning a substantially linear polyethylene material which has a molecular weight of preferably more than one million and small fractions of chain branches or of comonomers, it being understood by a small proportion that per 100 carbon atoms in the Main chain not more than 5 chain branches or comonomers are included.
• the linear polyethylene material may additionally contain up to 50% by weight of one or more polymeric additives such as alkene-1 polymers, especially low density polyethylene and the like, or low molecular weight additives such as antioxidants, UV absorbers, dyes and the like which are commonly incorporated become.
• polyethylene material is known as "extended chain polyethylene” (ECPE)
• ECPE extended chain polyethylene
• polypropylene is understood to mean a substantially linear polypropylene material having a molecular weight of preferably more than one million.
• the length of the polyolefin staple fibers of staple fiber component A of the knitted fabric II according to the invention is preferably in the range from 20 mm to 180 mm, more preferably in the range from 30 mm to 120 mm and most preferably in the range from 30 mm to 100 mm.
• the staple fiber component A comprises aramid staple fibers and polyolefin staple fibers, wherein the weight ratio of the aramid staple fibers: polyolefin staple fibers is in the range of 95: 5 to 5:95, more preferably in the range of 80:20 to 20:80.
• the polyolefin staple fibers are polyethylene staple fibers.
• the pure staple fiber yarn RA preferably has a titre in the range from 10 tex to 1000 tex, particularly preferably in the range from 12 to 500 tex and very particularly preferably in the range from 14 to 100 tex.
• the pure staple fiber yarn RB preferably has a titer in the range from 10 tex to 1000 tex, more preferably in the range of 12 to 500 tex and most preferably in the range of 14 to 100 tex on.
• the knit fabric II according to the invention preferably 2 to 10, and more preferably 2 to 8, of the staple superfine yarns RA are twisted into the twisted yarn ZA.
• preferably 2 to 10 and particularly preferably 2 to 8 of the staple fiber RB yarns are twisted into the yarn ZB.
• the fabric II according to the invention is produced by plating preferably 1 to 8 of the yarns ZA with preferably 1 to 8 of the yarns ZB, it being particularly preferred that the fabric II is obtained by plating 1 to 6 of the yarns ZA preferably 1 to 6 of the threads ZB is made.
• the knitted fabric II according to the invention is knitted with a needle spacing, gg, where gg is preferably in the range from 5 to 18 and particularly preferably in the range from 7 to 15.
• the knitted fabric II according to the invention is knitted with a mesh density in series, MiR, MiR being in the range from 2 to 15, particularly preferably in the range from 3 to 12.
• the knitted fabric II according to the invention is knitted with a mesh density in rods, MiS, MiS being in the range from 2 to 15, particularly preferably in the range from 3 to 12.
• the knitted fabric II according to the invention is modified by replacing the staple fiber RA with a pure filament yarn RA ', the result is Otherwise same structure also a plating produced by plating II 'with an attractive combination of cut resistance, abrasion resistance and comfort.
• the advantageous combination of cut resistance and comfort in the knitted fabric II according to the invention is noticeable in any type of clothing in which the knitted fabric II according to the invention can be worn on the body.
• the knit fabric II according to the invention is a garment that is designed as a glove, protective sleeve, hood or shirt.
• staple fiber component A 40 mm long staple fibers of poly-p-phenylene terephthalamide (type Twaron 1070 from Teijin Aramid GmbH) are used.
• the staple fiber component B used is kapok fibers having a length distribution ranging from fiber lengths of about 15 mm to fiber lengths of about 40 mm.
• a homogeneous staple fiber mixture is produced.
• Two of these mixed staple fiber yarns AB are twisted into a twine ZAB.
• Four of these ZAB twines are fed in parallel to a knitting machine and knitted into a glove with a needle spacing of 7 gg, a stitch density in series, MiR of 3.5, and a stitch density in sticks, MiS, of 3.5.
• staple fiber component A 40 mm long staple fibers of poly-p-phenylene terephthalamide (type Twaron 1070 from Teijin Aramid GmbH) are used.
• the staple fiber component B used is kapok fibers having a length distribution ranging from fiber lengths of about 15 mm to fiber lengths of about 40 mm.
• a homogeneous staple fiber mixture is produced.
• Two of these mixed staple fiber yarns AB are twisted into a twine ZAB.
• One of these ZAB twines is fed to a knitting machine and knitted into a glove with a needle spacing of 13 gg, a row density, MiR, of 6.0, and a stitch density in sticks, MiS, of 7.5.
• the staple fiber component A Only the staple fiber component A is used, ie 40 mm long staple fibers of poly-p-phenylene terephthalamide (type Twaron 1070 from Teijin Aramid GmbH). From 100 wt .-% of component A is a staple fiber yarn with a denier of Nm 28, ie made of 36 tex. Two of these staple fiber yarns are twisted into a twine. Four of these threads are fed parallel to a knitting machine and knitted into a glove with a needle spacing of 7 gg, a stitch density in series, MiR of 3.5, and a stitch density in rods, MiS, of 3.5. In this way, three comparison gloves V1 a, V1 b and V1 c are knitted. On the comparison gloves V1 a, V1 b and V1 c, the cut resistance N is measured according to ISO 13997 (August 1999).
• staple fiber component A Only the staple fiber component A is used, i. 40 mm long staple fibers of poly-p-phenylene terephthalamide (type Twaron 1070 from Teijin Aramid GmbH). From 100% by weight of component A is a staple fiber yarn with a denier of Nm 28, i. made of 36 tex. Two of these staple fiber yarns are twisted into a twine. These twines are fed to a knitting machine and knitted into a glove with a needle spacing of 13 gg, a stitch density in series, MiR of 6.0, and a stitch density in rods, MiS, of 8.0.
• comparison gloves V2a, V2b and V2c are knitted.
• the cut resistance N is measured according to ISO 13997 (March 1999).
• the comparison of the gloves 1 a-c according to the invention with the comparison gloves V1 a-c shows that the gloves according to the invention, despite their proportion of 10% by weight of kapok fibers, have an equally good cut resistance N with the same basis weight as the comparison gloves V1 a-c.
• the comparison of the inventive gloves 2a-c with the comparison gloves V2a-c shows that the gloves according to the invention, despite their proportion of 10 wt .-% Kapokmaschinen and despite a slightly smaller basis weight even a slightly better cut resistance N than the comparison gloves V2a-c.
• another glove 1d according to the invention is produced.
• the water vapor transmission resistance R e t is measured on the glove 1 d according to the invention.
• R et means the water vapor partial pressure difference between the two surfaces of the glove, ie between the inside and the outside of the glove divided by the heat of vapor flow per unit area resulting along the water vapor partial pressure gradient.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Knitting Of Fabric (AREA)
• Gloves (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (1)

Family

ID=40791604

Family Applications (1)

Country Status (6)

Families Citing this family (6)

Family Cites Families (10)

• 2009
  • 2009-12-07 US US13/133,580 patent/US20110237146A1/en not_active Abandoned
  • 2009-12-07 JP JP2011540045A patent/JP2012511640A/ja not_active Withdrawn
  • 2009-12-07 EP EP09774875A patent/EP2376686A1/de not_active Withdrawn
  • 2009-12-07 CN CN2009801563773A patent/CN102308034A/zh active Pending
  • 2009-12-07 KR KR1020117015951A patent/KR20110099728A/ko not_active Application Discontinuation
  • 2009-12-07 WO PCT/EP2009/066534 patent/WO2010066681A1/de active Application Filing

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events