CN101611344A - Friction cloth - Google Patents
Friction cloth Download PDFInfo
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- CN101611344A CN101611344A CNA200780041320XA CN200780041320A CN101611344A CN 101611344 A CN101611344 A CN 101611344A CN A200780041320X A CNA200780041320X A CN A200780041320XA CN 200780041320 A CN200780041320 A CN 200780041320A CN 101611344 A CN101611344 A CN 101611344A
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D27/00—Woven pile fabrics
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
- D03D15/33—Ultrafine fibres, e.g. microfibres or nanofibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
- D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/41—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific twist
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/587—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads adhesive; fusible
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- 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
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- 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
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
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- 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
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
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- 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
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- 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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- 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
- D10B2401/00—Physical properties
- D10B2401/04—Heat-responsive characteristics
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- 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
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
Abstract
A kind of friction cloth, this friction cloth is used for the alignment films of liquid crystal indicator is carried out orientation process, it is characterized in that: this friction cloth is made by base fabric and pile yams, the yarn silk of this base fabric and at least a portion of weft yarn are used the hot melt composition fiber, and this pile yams by cut apart multilayer layer mould assembly composition fiber below the 1.1dtex that obtains, its flatness (ratio of major diameter/minor axis) is the flat ultrafine fiber formation 4 or more.Therefore, provide the friction cloth that can on the alignment films that liquid crystal indicator is used, generate the easy application of uniform minute groove.
Description
Technical field
The friction cloth that the present invention relates in the preparation process of liquid crystal indicator, in the friction treatment of control liquid crystal molecular orientation, uses.
Background technology
In liquid crystal indicator, on alignment films, generate fine groove, make liquid crystal molecule along this minute groove orientation, can limit the orientation of liquid crystal molecule thus.The step that makes this alignment films form minute groove is with the flannelette friction orientation film on the roller that sticks on rotation, therefore is called as the friction treatment step.Wherein employed flannelette is called as friction cloth, and its material is to use rayon, cotton etc. at present.
The friction cloth of rayon system is that filling uses copper rayon, pile yams to use the velveting of common rayon.Carry out shorn velvet after the weaving and handle, carry out destarch, refining again, then, stability in order to ensure pile, using the cellulose reactive resin to carry out process of resin, come off in order to prevent pile, is that resin or acrylic ester resin carry out coating processing overleaf with vinyl acetate further.
On the other hand, when adopting cotton, carry out refining, bleaching, further cut a mao shorn velvet in order to remove cotton contained wax composition in weaving back own or snotter.During for cotton, ultimate fibre has the distortion that is called as the natural distortion of cotton fiber (convolution), is not the broad wool shape, therefore is not used to make the process of resin of the stable cellulose reactive resin of pile.Usually rayon system be called as the W pile, be to be pressed in 3 weft yarns to clamp pile on the pile, and cotton system be called as the V pile, be to push down pile, so be the structure that pile comes off easily with 1 weft yarn, must carry on the back fully and be coated with.
Usually, in the friction treatment that the friction cloth that uses common rayon system or cotton to make carries out, if pile length, angle of inclination or the density unevenness of friction cloth are even, then irregular to the friction force of alignment films, therefore the generation of the dipole-dipole force of alignment films is inhomogeneous, becomes the reason that the liquid crystal panel display quality reduces.During pile that employing is formed by the ultrafine fiber of routine, the elastic force of resilience reduces, and therefore the friction force deficiency is difficult to orientation.
In addition, friction treatment is with in order to make friction with the friction roller friction orientation film of high speed rotating, to contact, peel off and carry out repeatedly, produces static.
This static makes the circuit on the glass substrate produce damage, causes the generation of liquid crystal display defective products.And friction cloth sticks on the metallic roll via double faced adhesive tape, but the base fabric of pile fabric can stretch according to humidity during for cellulose fibre.That is, under high humility, extend, under low humidity, shrink.Therefore, exist in friction cloth accurate cutting, keeping, must carry out the problem of the moisture management of strictness with the stickup aspect of friction roller.
On the other hand, in order to improve the liquid crystal display precision, the someone proposes: use the friction cloth with fluffing position, this fluffing position contains the following ultrafine fiber (with reference to patent documentation 1) of 1.1dtex.But, the ultrafine fiber of concrete record is that the composite spun fiber that will have hollow radial pattern cross section carries out dividing processing, has the ultrafine fiber of sector crosssection in the patent documentation 1, and it is bad that discovery when using this ultrafine fiber to carry out friction treatment such as the inventor etc.s more often produces orientation.Its reason may be because in the patent documentation 1 described ultrafine fiber, the ultrafine fiber that constitutes pile does not have the body bone, lodging easily, and its result, though used ultrafine fiber, the superiority of ultrafine fiber is not used in performance.
In addition, in the friction treatment, rub repeatedly, contact, peel off between the friction cloth of high speed rotating and the alignment films, therefore produce static, make the circuit on the glass substrate produce damage, cause the liquid crystal display defective products to take place.For preventing this problem, open in the patent documentation 1: charged when preventing friction treatment makes the batt that rises at least at fluffing position give electric conductivity.As the concrete grammar of giving antistatic behaviour, proposed when carrying out the ultrafine fiber spinning, to sneak into the method for antistatic agent such as carbon black, metal fine powder end.But when using aforesaid conducting fibre of sneaking into antistatic agent in pile, in velveting or cut pile fabric, antistatic agent such as carbon black or metal powder are exposed to the surface or the cross section of pile yams.With the pile yams friction orientation film that antistatic agent exposes, this becomes the reason of pollution, and the bad relevant of liquid crystal indicator is taken place.
On the other hand, for fear of resulting from the minute dust of above-mentioned conductive material friction etc., the generation of impurity, people have proposed a kind ofly to contain the composition fiber of sheath cored structure, the unexposed in fact friction cloth of conductive material on rubbing surface, wherein, the composition fiber of sheath cored structure is that SMIS contains conductive material, sheath covers this SMIS, is by non-conductive material (with reference to patent documentation 2).
So as concrete scheme, the someone has proposed the composition fiber that a kind of pile yams contains above-mentioned sheath cored structure, form the friction cloth of the circle suede that does not cut off this pile.
But in the patent documentation 2 described friction cloth, pile yams is used the conductive composite fibre of sheath cored structure, therefore can't realize the super-refinement of pile yams, is difficult to alignment films is implemented fine orientation.Promptly, in the conductive composite fibre of sheath cored structure, the conductive material of SMIS is fibers itself such as metal fibre, surface metalation fiber, carbon fiber, electric conductivity ceramic fiber, or is shaped to fiber etc. with electroconductive powders such as carbon dust, metal powder are mixing in resin, through spinning; Skin is to cover all with the lining material that for example contains resins such as polyester, acrylate, polyamide, the ultimate fibre fiber number of gained conductive composite fibre is about 5～20dtex, be difficult to obtain fine denier, compare common friction cloth the pile fiber number (1.1～3.3dtex), formed obvious thick pile, use as fruit part, then with the friction irregular, lines is relevant, when on whole, using, non-uniform electric field can't be formed, corona discharge can't be obtained.
In addition, the tip of pile yams is not acute angle but encloses suede, so friction effect also reduces.And, when conductive material is black, do not see the motion that setting can be covered black, be made white and even linen shielding layer as yet.
And, record in the patent documentation 1, for coming off of the pile part of the cloth that prevents to rub, implement the coating processing of vinyl acetate system or acrylic ester resin overleaf, but, process this new step if increased coating, the manufacturing step of the cloth integral body that then rubs prolongs, this makes cost up, and the manufacturing deficiencies such as pollution in the step also increase.
People's friction cloth of not proposing to improve the formation of the ultra-fine fiber number pile liquid crystal display precision, that friction effect is high and can solving problems such as pollution that conductive agent brings, cost height like this, at present.
Patent documentation 1: TOHKEMY 2005-91899 communique
Patent documentation 2: TOHKEMY 2007-232938 communique
Summary of the invention
The present invention is directed to the problems referred to above and establish, its purpose is to provide the homogeneity of length, angle of inclination, density that can be by pile yams all can not go wrong and realizes fine uniform orientation by the pile yams that the ultrafine fiber with special cross-section constitutes, and conducting fibre not only can be antistatic, it is also few to pollute, and can also omit the friction cloth of the excellence of coating step.
The inventor etc. have carried out deep research for solving above-mentioned problem, found that: by in the pile of friction cloth, using the ultrafine fiber of special cross-section, can obtain the bad considerably less display element of orientation, and by using the hot melt composition fiber, can omit the gluing of base fabric and reinforce step, by using the conductive composite fibre that does not expose conductive layer, can obtain the improved friction cloth of yield rate, thereby finish the present invention.
That is, the invention provides following content:
(1) friction cloth, it is the friction cloth that is used for the alignment films of liquid crystal indicator is carried out orientation process, it is characterized in that: this friction cloth is made by base fabric and pile yams, the warp thread of this base fabric and at least a portion of weft yarn are used the hot melt composition fiber, and this pile yams by cut apart multilayer layer mould assembly composition fiber below the 1.1dtex that obtains, its flat ratio (ratio of major diameter/minor axis) is the flat ultrafine fiber formation 4 or more.
(2) above-mentioned (1) described friction cloth wherein, contains conductive composite fibre in the base fabric, and the conductive layer of this conductive composite fibre is not exposed to fiber surface, and electric conductivity is that per 1 long filament is 10
5～10
9Ω/cm.
(3) above-mentioned (2) described friction cloth, wherein, this friction cloth has used the periphery at the conductive layer of this conductive composite fibre to apply the conductive composite fibre that covers polymeric layer and obtain.
Description of drawings
Fig. 1 is that the flat ultrafine fiber as the pile yams of friction cloth of the present invention forms composition and the cross-sectional view of an example of the multilayer layer mould assembly composition fiber that uses.
Fig. 2 is the pattern sectional view of an example of the formation of expression friction cloth of the present invention.
Fig. 3 is the pattern sectional view of an example of employed conductive composite fibre among expression the present invention.
Fig. 4 is the pattern sectional view of employed conductive composite fibre in the expression comparative example of the present invention.
Symbol description
A: become cellulosic polymers A
B: with the polymer A non-compatibility become cellulosic polymers B
1: multilayer layer mould assembly composition fiber
10: friction cloth
21: pile layer
22: base fabric
23: conductive composite fibre
30,40: conductive composite fibre
31: conductive layer
32: cover polymeric layer
33: the protection polymeric layer
41: the protection polymeric layer
Embodiment
In the friction cloth of the present invention, the ultrafine fiber that uses in the pile of friction cloth as shown in Figure 1, multilayer layer mould assembly, Splittable conjugate fiber with special cross-section shape are cut apart the flat ultrafine fiber of gained, and this Splittable conjugate fiber is to contain into cellulosic polymers A, form the aggregate of composition with the flat ultrafine fiber that becomes cellulosic polymers B of polymer A non-compatibility; After cutting apart, form the flat ultrafine fiber that forms by polymer A or polymer B respectively.The ultimate fibre fiber number of this flat ultrafine fiber is below the 1.1dtex, then can obtain not having the uniform display element of lines, and is therefore preferred, also preferred 0.1～1.1dtex, the more preferably scope of 0.2～0.5dtex.And the ratio of the major diameter/minor axis of the xsect of flat ultrafine fiber is that flatness is more than 4, is necessary for obtaining meticulous groove, preferred more than 5 to the flatness below 15.Particularly flatness is more than 4 and the state that joins of flat horizontal surface when constituting pile down, and pile yams is difficult to lodging, can obtain the alignment films of orientation excellence.In order to make the pile yams that forms by flat ultrafine fiber be difficult to lodging, make major diameter one side of flat horizontal surface of flat ultrafine fiber parallel during the preferred disposition pile yams with frictional direction.For example, use multilayer layer mould assembly composition fiber shown in Figure 1 as Splittable conjugate fiber, and the use twisting count is the yarn (hereinafter referred to as " pile yarn ") that the undertwisted yarn conduct of 0～500T/M contains the formation pile of this fiber, with this pile with yarn and warps parallel inweave in the fabric, then pushed down by weft yarn, pile forms flat with yarn, the flat horizontal surface of the property cut apart multilayer layer mould assembly composition fiber (major diameter one side) is parallel with weft yarn easily.Above-mentioned silk is carried out dividing processing, and for friction cloth, the circumferencial direction that makes friction roller is that warp thread direction is reeled, and then the flat horizontal surface of flat ultrafine fiber is parallel with frictional direction easily.Certainly, even need not to consider especially whether the flat horizontal surface of flat ultrafine fiber is parallel with frictional direction, flat ultrafine fiber also can make its flat horizontal surface parallel a bit with frictional direction on one's own initiative, can effectively play a role towards the flat ultrafine fiber of this direction, forms uniform minute groove.
And, among the present invention, multilayer layer mould assembly composition fiber preferred flat face before cutting apart joins, and 5～20 layers, particularly 7～15 layers flat ultrafine fiber is formed into the laminated cross sectional shape of branchs, and cut apart the preferred 1～10dtex of ultimate fibre fiber number of preceding multilayer layer mould assembly composition fiber.Multilayer layer mould assembly composition fiber before cutting apart is preferably above-mentioned flat cross section fiber and forms the cross sectional shape that composition joins with a plurality of flat horizontal surfaces, if particularly the cross section of each flat ultrafine fiber formation composition is roughly rectangle, this considers preferred from the angle that can generate meticulous groove.
In addition, the preferred total fiber number of pile is 40～500dtex, if pile height be 1.0～3.0mm, in particular for 1.5～2.6mm, then be not easy lodging from pile, the angle that can obtain the alignment films of orientation excellence is considered preferred.And the every 1cm of the preferred base fabric of pile density
2The state that has 100,000～400,000 piles.
The following acquisition of above-mentioned flat ultrafine fiber: the polymkeric substance more than 2 kinds of non-compatibility imported to carry out composite spinning in the nozzle bore, make cross-sectional view form multiple-layer laminated state by fiber, with the multilayer layer mould assembly composition fiber that obtains thus with the state of fiber or use this fiber to make pile fabric, crumple processing, water spray processing, gas blowout processing, acupuncture processing, shorn velvet processing, alkali decrement treatment, benzoic acid or benzylalcohol equal solvent then and handle, obtain by the dividing processing of carrying out thus.
The non-compatibility polymkeric substance that constitutes Splittable conjugate fiber is meant that solubility parameter is 2MJ/m
3Above different polymkeric substance.Specifically, polymer A is polyethylene terephthalate, polybutylene terephthalate or based on their polyester such as copolyester, PLA; Polymer B is polyamide such as nylon-6, nylon-66, nylon-610, partially aromatic polyamide; Perhaps polymer A is that ethylene contents is the ethylene-ethenol system copolymer of 20～50% (mol); Polymer B is that to be selected from tygon, polypropylene etc. polyolefinic more than 2 kinds or 3 kinds; Polymer A and polymer B are combined to form, and this considers preferred from the angle of cutting apart easily.
The scope that the weight ratio of polymer A and polymer B is preferred 4: 1～1: 4, more preferably 3: 1～1: 3 scope.
The preferred concrete examples of combinations that forms the polymkeric substance of multilayer layer mould assembly composition fiber is: polyamide/polyester, polyester/ethylene-vinyl alcohol copolymer, polyester/polyolefin, polyamide/polyolefine etc.Wherein, the most preferably combination of polyamide/polyester.The solubility parameter of the polymkeric substance of wherein said formation composition fiber is meant the value shown in the parameter list (SP value table) of the 90th page of polymkeric substance of being put down in writing of " plastics databook (プ ラ ス チ Star Network デ one Block Star Network) " (distribution on Dec 1st, 1999) of Japanese industry fact-finding meeting distribution.Can obtain this solubility parameter by the density calculation value of focused energy for the polymkeric substance of not representing in this SP value table.
Below, describe for the employed hot melt composition fiber of the base fabric of friction cloth of the present invention.Employed hot melt composition fiber is meant that the two kinds of different polymkeric substance by low melting point composition and high-melting-point composition constitute among the present invention, can be made into have parallel type, the composition fiber of compound cross-section structures such as core-sheath-type (with one heart core-sheath-type, eccentric core-sheath-type), fabric of island-in-sea type, multilayer layer mould assembly, wherein preferred core-sheath-type.Wherein, to contain fusing point be below 160 ℃ and the polymkeric substance more than 80 ℃ to described low melting point composition; Described high-melting-point composition is than the dystectic polymkeric substance of this low melting point composition, and fusing point is more than 200 ℃, preferred fusing point is more than 240 ℃.
The polymkeric substance that can use in these hot melt composition fibers for example has: with polyamide, the polyester as representative such as nylon, and be the polyolefin polymkeric substance of representative with polypropylene, tygon etc.Wherein, the combination of low melting point composition and high-melting-point composition for example has: low-melting point polyester/high melting point polyester, polyethylene/polypropylene, tygon/high melting point polyester, polypropylene/polyester etc.
Among the present invention, above-mentioned hot melt composition fiber still possesses fibrous physical properties such as intensity, elongation, heat-shrinkable after having hot melt and fusion concurrently, and this is very important.The application target of hot melt composition fiber is to prevent coming off of pile, considers that pile yams is preferably the composition fiber of polyester/nylon, considers preferred low-melting point polyester/high melting point polyester from the compatibility angle of pile yams and filling.The low-melting point polyester composition uses poly terephthalic acid hexylidene ester, high-melting-point composition to use polyethylene terephthalate, and the situation of this feel hardening after fusion is few, and is preferred especially.Above-mentioned low melting point polymer shared preferred 20～80% (weight) of ratio in the hot melt composition fiber.
When low melting point polymer is lower than 20% (weight), be difficult to obtain good hot melt, and surpass 80% (weight), then Fibrotic engineering such as spinnability, stretchability reduces, and is therefore not preferred.
Preferred 1～the 10dtex of ultimate fibre rugosity of hot melt composition fiber.Among the present invention, all fibers that constitute base fabric can be the hot melt composition fiber, can also be that a part that constitutes the fiber of base fabric is used the hot melt composition fiber.When using as the part of the fiber that constitutes base fabric, in warp thread and weft yarn,, when being the hot melt composition fiber more than 40% (weight) of whole fibers of formation base fabric, can prevent that pile yams from coming off with certain arranged spaced, therefore preferred.
Certainly, in the present invention, when hope realizes further preventing that pile yams from coming off, can on base fabric, carry on the back and be coated with acrylic ester emulsion or polyurethane series emulsion, rubber is emulsion or latex etc.
Can use conductive composite fibre in the base fabric among the present invention.Usually in friction treatment, by the friction cloth friction orientation film on the friction roller that sticks on high speed rotating, therefore, alignment films rubs repeatedly, contacts, peels off between the cloth with friction, produce static, make the circuit of glass substrate produce damage, the various dust that produce during absorption friction simultaneously.
Therefore electrostatic prevention is very important, record in patent documentation 1 before, as the electrostatic prevention scheme, the friction cloth that use has made batt (being the pile position) have electric conductivity, its concrete scheme record: in playing batt, add conducting fibre, perhaps mixing antistatic agent (carbon black or metal powder) when ultrafine fiber is carried out spinning carries out spinning.But, when the conducting fibre that contains in playing batt is not ultrafine fiber, play batt, be that the pile face is that this conducting fibre mixes existence with ultrafine fiber, and the friction force between the alignment films is variant certainly, it is uneven to form friction.And sneaked in the ultrafine fiber of antistatic agent, ultrafine fiber after will cutting apart is for example made the core-sheath-type composition fiber, this is impossible in preparation process, therefore, electric conductivity ultrafine fiber in the patent documentation 1 that we understand is meant the ultrafine fiber that antistatic agent is evenly sneaked into, therefore, carbon black or metal powder are exposed to the ultrafine fiber surface in this case.In addition, even the ultrafine fiber after supposing to cut apart is a compoundization ultrafine fiber, pile yams is cut off after weaving, therefore antistatic agent is exposed on the cross section of pile yams, if the ultrafine fiber that exposes with antistatic agent carries out friction treatment to alignment films, then become the reason of pollution, the liquid crystal display quality is reduced.
Discoveries such as the inventor: destaticing of the static of accumulating not by conduction, can be undertaken by corona discharge, therefore need not in pile, to use conducting fibre, can promptly in the part of end tissue, use at base fabric.This conductive composite fibre for example can utilize following composition fiber: by contain conductive layer that the resin of conventional conductive carbon (carbon black) as employed conductive agent in the fiber form on the length direction of fiber continuously.Destatic by corona discharge, so the resistance of conductive composite fibre is preferably 10
5Ω/cm is above to 10
9The scope that Ω/cm is following.Have that contained electrical conductivity Carbon black preferably has 10 in the conductive layer of conductive composite fibre of above-mentioned resistance
-2～10
-3The resistivity of Ω cm.Wherein said resistance is meant: fiber is cut into 10cm, on tangent plane, is coated with conductive coating paint (De one イ ト), the anchoring fiber end, then with this end as electrode, calculating and applying voltage is resistance under the 1KV, obtains the resistance of 1 threads.
Need to prove, conductive agent for example has: above-mentioned acetylene black as conductive carbon (carbon black), Ketjen black, PAN are that carbon, pitch are carbon dusts such as carbon, the powder or the fiber of metals such as aluminium, palladium, iron, copper, silver system, metallic compound powder such as zinc paste, tin oxide, titanium dioxide, copper sulfide, zinc sulphide etc., they can separately or will be used in combination more than 2 kinds.
When using carbon black as conductive agent, the electrical conduction mechanism that contains the resin of electrical conductivity Carbon black is considered to because the conduction due to the contact of carbon black chain, and because the conduction due to the tunnel effect etc. etc. mainly are thought of as the former usually.Therefore, carbon chain length, be present in the resin with high density, then contact probability is big, can have high conductivity.The result of the inventor etc. research shows that the content of electrical conductivity Carbon black is lower than 15% (weight), does not then almost have conductive effect, be 20% (weight) then electric conductivity be increased sharply, surpass 30% (weight) then conductive effect almost reach capacity.
The conductive layer of conductive composite fibre by conductive materials such as electrical conductivity Carbon black with become cellulosic polymers to constitute.
Contain conductive layer conductive composite fibre the cross section an example as shown in Figure 3.In the conductive composite fibre 30 that uses in the friction cloth of the present invention shown in this figure; conductive layer 31 is not exposed to fiber surface (face of fiber one side); promptly; conductive layer 31 is covered polymeric layer 32 and protects polymeric layer 33 to cover by the non-conductive polymeric layer form of the conduct of multilayer; being the sheath core pattern conductive composite fibre of the conductive layer face that is not exposed to fiber one side, is the non-exposed type that can avoid problem that alignment films is polluted.
As the rugosity of the conductive composite fibre that uses in the friction cloth of the present invention, preferred ultimate fibre fiber number is 5～20dtex, the scope of preferred especially 7～18dtex.
In friction cloth of the present invention, as shown in Figure 3, consider from aesthetic perspective, the black of conductive layers such as carbon black should be covered, make the polymeric layer that covers of the white (canescence) that covers conductive layer, this outward appearance angle from conductive composite fibre is considered preferred.Covering polymeric layer is to contain inorganic particles in becoming cellulosic polymers, and this inorganic particles for example has: titania, zinc paste, magnesium oxide, aluminium oxide, silicon dioxide, barium sulphate, lime carbonate, sodium carbonate, talcum powder, porcelain earth etc. have the white color system pigment or the white color system packing material of screening effect, and they can 1 kinds or will be used in combination more than 2 kinds.Consider whiteness, ropiness, processing characteristics, preferred titania of screening effect and/or zinc paste as cloth and silk.Formation is covered in the one-tenth cellulosic polymers of polymeric layer, approximately contains above-mentioned inorganic particles with 10～50% (weight), if furnishing covers the thickness of polymeric layer, then can obtain screening effect.Become cellulosic polymers can use the polymkeric substance that is used to form the sheath layer afterwards.
In addition, the conductive composite fibre of friction cloth of the present invention preferably with the above-mentioned polymeric layer that covers further with becoming cellulosic polymers to cover, the protection polymeric layer is set.The polymkeric substance that forms this protection polymeric layer for example has: with nylon etc. is polyamide, the polyester of representative, and is the polyolefin polymkeric substance of representative with polypropylene, tygon etc.Particularly, if select with the low melting point composition of above-mentioned hot melt composition fiber have compatibility polymkeric substance, can carry out the heat fusing of base fabric securely, then can further improve and prevent coming off of pile yams, therefore preferred.
The function of protection polymeric layer is: further protects conductive layer and shielding layer, can be used as conductive composite fibre and be woven in the velveting etc., and as further covering of the expression of the fibre strength of the filling of friction cloth, the black of conductive layer etc. etc.The protection polymeric layer forms the outmost surface of fiber, therefore, preferably adds in the common synthon employed titania etc. in forming polymkeric substance, improves the texture of fiber.Need to prove, cover polymeric layer and protection and can suitably add usually various adjuvants such as thermal stabilizer that the adjuvant as fiber uses, light stabilizer, antistatic agent or coloring pigment etc. in the polymeric layer as required.
As shown in Figure 3; when forming conductive composite fibre with 3 layers; the compound ratio of fibre section is by the longest diameter of conductive polymer coating 31, the expression that compares of covering other maximum ga(u)ge of branch of polymeric layer 32, protection polymeric layer 33; maximum length with conductive polymer coating 31 is 1; be 1: 0.1～1: 0.5～2 ratio, this balance equal angles from electric conductivity, covering property, sealer and fibre property is considered preferred.
For reference, Fig. 4 provides the conductive composite fibre of exposed type.Conductive composite fibre 40 shown in this figure contains conductive layer 31 and protective seam 41, and conductive layer 31 is exposed on the part of face of fiber one side.Use the conductive composite fibre of above-mentioned exposed type, the then friction that produces of the friction roller of the high speed rotating pollution that can bring conductive agent.
Among the present invention, conductive composite fibre does not use in pile yams and uses in the part of filling, but the friction that the friction roller of considering high speed rotating produces is considered from antipollution angle, can adopt the conductive composite fibre of non-exposed type sheath core pattern shown in Figure 3.
Need to prove that conductive composite fibre uses with the state of 2～6 bunchys.This electric conductivity that can prevent that the cut-out owing to conductive composite fibre from causing disappears, and is therefore preferred.In addition, the form of conductive composite fibre being made the covering yarn on every side that is wound on non-conductive sex pilus can not apply bigger tension force to conductive composite fibre, and is therefore preferred.
Above-mentioned conductive composite fibre uses in direction and latitude direction at least end tissue.The yarn that contains this conductive composite fibre as mentioned above, be under the state that many is gathered bunchy (hereinafter referred to as " electric conductivity yarn "), in base fabric with more than the 1cm to the interval below the 5cm, more preferably to use about 1 to the interval below the 4cm more than the 1cm.Inweave the end when organizing, can use the electric conductivity yarn that only contains conductive composite fibre separately, method such as also can adopt that longitude and latitude interweaves forms one with other reinforcing fiber, as mentioned above, can also make the form of covering yarn.Preferably to the interval below the 5cm, to use the ratio of 1 electric conductivity yarn to inweave warp-wise or broadwise more than the 1cm.When the braiding of electric conductivity yarn was not enough 1cm at interval, conductive composite fibre was comparatively expensive, so cost raises, and can't improve especially to destatic performance.And the braiding interval can't obtain enough effects that destatics when 5cm is above.
In the friction cloth of the present invention, the preferred weaving density of base fabric is 15～40/cm of warp thread, 20～50/cm of weft yarn.The scope of the preferred 50～300dtex of rugosity of warp thread and weft yarn.
Preferred plan to friction cloth of the present invention describes below.Fig. 2 represents the amplification cross section mode chart as the friction cloth 10 of one embodiment of the invention.
This friction cloth 10 is the pile base fabric materials that contain pile 21 and base fabric 22, and the part of base fabric 22 has inweaved conductive composite fibre 23, and one of them side of the warp thread of base fabric and weft yarn has inweaved the hot melt composition fiber.Pile yams is the following ultrafine fiber of 1.1dtex, be by the flatness after cutting apart be more than 4, preferred multilayer layer mould assembly more than 5 cuts apart fibroplastic flat ultrafine fiber.The fiber of rugosity that surpasses 1.1dtex each root pile when friction treatment all increases the influence that the alignment films of liquid crystal display cells produces, and pile length or angle of inclination also go wrong, and are difficult to obtain uniform orientation effect.
The preferred velvet of above-mentioned pile base fabric material, clipping etc.In the base fabric of this pile base fabric material, in the part of warp-wise or broadwise, cooperate conductive composite fibre at least, use the hot melt composition fiber at least in warp thread or the weft yarn, in addition without limits, can utilize normally used material filling.But, when filling is CUP, exist because of humidity changes the change in size that causes, therefore must keeping, accurate cutting, and the stickup of friction roller aspect carry out strictness moisture management.Consider the preferred especially dacron good to the dimensional stability of humiture from the angle that desired temperature and humidity management is more or less freely.
In the friction cloth of the present invention, pile yams is the special cross-section that is formed by flat ultrafine fiber, therefore can carry out even, stable friction treatment.According to this friction cloth, need not like that strictly to manage pile length or angle of inclination in the past, use simply, and can on alignment films, generate even, fine groove.
And, in the friction cloth of the present invention, in the part of end tissue, cooperate conductive composite fibre, therefore the alignment films that will take place in the time of can will rubbing by corona discharge destatics with the friction between the cloth that rubs, the static that carries out repeatedly producing that contacts, peels off, the damage that is arranged on the circuit on the alignment films can be alleviated, the absorption of the dust that produces owing to friction can be reduced.
In addition, if use the hot melt composition fiber in the silk of yarn at least of friction cloth of the present invention or weft yarn, then can omit and be used to prevent that the back of the body that pile yams comes off is coated with step, step shortens, and can reduce cost thus, and yield rate also can improve.
Specify the present invention by the following examples, but the present invention is not limited to following embodiment.
Need to prove that flatness of the present invention is meant the microphotograph of taking the fibre section, it amplified, obtain the ratio of long limit and minor face respectively for 50 fibers selecting arbitrarily, with its mean value as flatness.
Embodiment
Further describe the present invention by the following examples, but the present invention is not subjected to any qualification of these examples.
" embodiment 1 "
Use pile yams, warp thread and the weft yarn of the following stated, the count of base fabric for through, latitude be respectively 70 pieces/inch (28/cm), 69 pieces/inch (27/cm), with the velveting central cutout (center cut) that obtains, batch.
Pile yams
Use polyester (solubility parameter=22MJ/m according to 2: 1 weight ratios
3) and nylon (solubility parameter=27MJ/m
3), carry out composite spinning, the nylon of the polyester of the polymer A layer as shown in Figure 1 that obtains and polymer B layer fitted into alternately 11 layers multilayer layer mould assembly on transverse direction, the twisting count that will form by the multilayer layer mould assembly composition fiber 1 of flat cross section shown in Figure 1 be the multifilament (84dtex/24 long filament) of 250T/M as flat ultrafine fiber formation property pile yams, with warps parallel inweave.
Body warp
(1) conventional polyester (84dtex/72 long filament, twisting count S800T/M)
(2) conductive composite fibre
Conductive composite fibre as shown in Figure 3 is to use and contains the nylon 6 of 35% (weight) electrical conductivity Carbon black as electric conductive polymer layer 31; use contains 50% (weight) titanium dioxide fine particles (mean grain size 0.2 μ m) as the nylon 6 that covers polymeric layer 32; use contains the polyester of 0.5% (weight) titania as protection polymeric layer 33; compound ratio in the fibre section is: the longest diameter of conductive polymer coating; cover polymeric layer; it is 1: 0.27: 1.03 ratio that the protection polymeric layer divides comparing of other maximum ga(u)ge; to contain conductive polymer coating; three layers of core-sheath-type compound cross-section that cover polymeric layer and protection polymeric layer carry out composite spinning; stretch, with the conductive composite fibre silk (resistance 3 * 10 of the 28dtex/2 long filament that obtains
7Ω/cmf) is according to the ratio of 1 of the arranged spaced of every 1.27cm, converged by the rear of loom and warp thread and weaves.
Bottom weft
Weft yarn be with fusing point be 135 ℃ poly terephthalic acid hexylidene ester as low melting point sheath composition, with common polyester as high-melting-point core composition, obtain core sheath ratio and be 80: 20 hot melt composition fiber (220dtex/48 long filament, twisting count S500T/M), weave.
Then, carry out shorn velvet, destarch, refining, it is alkali decrement processing by sodium hydrate aqueous solution that flat ultrafine fiber forms cutting apart of property pile yams, is that target is carried out with reduction rate 7%.Further carry out brushing, drying, carry out 180 ℃ thermal treatment then, the hot melt composition fiber of weft yarn and pile firm attachment, the pile yams that flat ultrafine fiber forms are not easy to become the tangent plane after the specified size to come off from cutting, can omit the step of backing.The pile of gained friction cloth is that 0.3dtex, flatness are that 6 ultrafine fiber constitutes by fiber number, and pile length is 2mm, and this flat ultrafine fiber exists with the state that divisional plane joins.And be every 1cm
2The state that has 250,000 flat ultrafine fiber in the base fabric.
Use this friction cloth, rub to push length 0.2mm, rotational speed 1500rpm, when using atomic force microscope image viewing surface state, the result forms parallel groove with the uniformity coefficient that does not have deviation.The circuit that has obtained causing because of static damages the high meticulous liquid crystal indicator that reduces, cut is few.
" comparative example 1 "
The multifilament (84dtex/24 long filament) that use in the pile yams that the starting section is radial as hollow by cutting apart, polyester/nylon is fitted altogether alternately 12 layers composition fiber forms is as the ultra-fine fiber of cutting apart.In this comparative example, conductive composite fibre is not inweaved in the base fabric, do not use the hot melt composition fiber yet, replace, in warp thread and weft yarn, use conventional polyester fiber (84dtex/72 long filament, twisting count S800T/M) to weave, next carry out shorn velvet, destarch, refining, cutting apart of pile yams is alkali decrement processing by sodium hydrate aqueous solution, is that target is carried out with reduction rate 7%.Further brushing, drying are used the acrylic ester emulsion to carry on the back then and are coated with, and obtain friction cloth.
When under condition similarly to Example 1, rubbing, do not obtain enough orientation effect.In addition, in the gluing processing, be not the machinery of friction cloth special use overleaf, various materials, shades of colour were all once processed, therefore more visible pollutions, the result is the finished product rate variance.
In this friction cloth, the fiber that constitutes pile is the ultrafine fiber of 0.27dtex, and average flatness is 1.8.
" comparative example 2 "
As conductive composite fibre; as shown in Figure 4; with the nylon 6 that contains electrical conductivity Carbon black as conductive layer 31; equally with nylon 6 as the protection polymeric layer 41; conductive layer 31 exposes a part at fiber surface, promptly forms the conductive composite fibre 40 (resistance 2 * 10 of so-called exposed type 28dtex/2 long filament
7Ω/cmf); It is mixed with the ultra-fine fiber of cutting apart in the radial cross section identical with comparative example 1, be used for pile yams, in addition similarly prepare the cloth that rubs with comparative example 1 with the weave ratio at a place of the interval of 1.27cm.
When carrying out friction treatment similarly to Example 1,, therefore produce cut because the conductive composite fibre that uses in the pile is 28dtex/2 long filament, thicker, in addition, because high speed rotating, electrical conductivity Carbon black comes off from the conductive layer that is exposed to the conductive composite fibre surface, pollutes.Owing in order to remove the influence of this washing step of carrying out of coming off, orientation characteristic reduces, and the quality of liquid crystal indicator reduces.
Industrial applicability
Friction cloth of the present invention can be applicable to be formed uniformly the equal of minute groove in alignment films Spare and stable friction treatment.
And friction cloth of the present invention is to use the compound fibre of hot melt in warp thread or weft yarn at least Dimension, therefore can economize the back of the body that slightly prevents coming off of pile yams and carry out is coated with step, low-cost, one-tenth The product rate also improves, and can be applicable to friction treatment.
And, the friction of the present invention of in the part of end tissue, being furnished with conductive composite fibre The alignment films that will take place when cloth can will rub by corona discharge with the friction between the cloth of rubbing, connect Touch, peel off repeatedly carry out and the static that produces destatics, can alleviate to be arranged on the alignment films The damage of circuit, can reduce the absorption of the dust that produces owing to friction, can be applicable to rub The erasure reason.
Claims (3)
1. friction cloth, this friction cloth is used for the alignment films of liquid crystal indicator is carried out orientation process, it is characterized in that: this friction cloth is made by base fabric and pile yams, the warp thread of this base fabric and at least a portion of weft yarn are used the hot melt composition fiber, and this pile yams by cut apart multilayer layer mould assembly composition fiber below the 1.1dtex that obtains, its flat ratio is a major diameter and the ratio of minor axis is that flat ultrafine fiber more than 4 constitutes.
2. the described friction cloth of claim 1 wherein, contains conductive composite fibre in the base fabric, and the conductive layer of this conductive composite fibre is not exposed to fiber surface, and electric conductivity is that per 1 long filament is 10
5～10
9Ω/cm.
3. the described friction cloth of claim 2, wherein, this friction cloth has used the periphery at the conductive layer of this conductive composite fibre to apply the conductive composite fibre that covers polymeric layer and obtain.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP301400/2006 | 2006-11-07 | ||
| JP2006301400 | 2006-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101611344A true CN101611344A (en) | 2009-12-23 |
Family
ID=39364404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200780041320XA Pending CN101611344A (en) | 2006-11-07 | 2007-10-31 | Friction cloth |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5009300B2 (en) |
| KR (1) | KR101494018B1 (en) |
| CN (1) | CN101611344A (en) |
| TW (1) | TWI393811B (en) |
| WO (1) | WO2008056584A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243393A (en) * | 2010-05-14 | 2011-11-16 | 台元纺织股份有限公司 | Alignment device and method |
| CN103472625A (en) * | 2013-08-30 | 2013-12-25 | 合肥京东方光电科技有限公司 | Rubbing cloth and preparation method and preparation device thereof |
| CN103558715A (en) * | 2013-11-12 | 2014-02-05 | 北京京东方光电科技有限公司 | Friction cloth and friction device |
| CN105589258A (en) * | 2014-10-23 | 2016-05-18 | 杉原恭卫 | Rubbing cloth used for LCD manufacturing |
| CN105807501A (en) * | 2016-06-03 | 2016-07-27 | 京东方科技集团股份有限公司 | Rubbing cloth and preparation method thereof, friction roller and method for pressure detection of friction roller |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5097022B2 (en) * | 2008-06-09 | 2012-12-12 | 富士フイルム株式会社 | Fabric for rubbing and method for producing optical film |
| JP5097623B2 (en) * | 2008-06-09 | 2012-12-12 | 富士フイルム株式会社 | Rubbing method and optical film manufacturing method |
| JP2011058151A (en) * | 2009-09-14 | 2011-03-24 | Aono Pile Kk | Woven pile fabric and method for producing the same, and apparatus for producing woven pile fabric |
| TWI384100B (en) * | 2010-01-25 | 2013-02-01 | Tai Yuen Textile Co Ltd | Rubbing cloth and rubbing apparatus utilizing the same |
| CN102251333B (en) * | 2010-05-17 | 2013-07-10 | 台元纺织股份有限公司 | Aligning cloth and aligning device |
| CN102517745A (en) * | 2011-11-28 | 2012-06-27 | 江苏阳光股份有限公司 | 500-Nm pure wool worsted tweed and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03163528A (en) * | 1989-11-22 | 1991-07-15 | Toray Ind Inc | Rubbing cloth for producing liquid crystal element and production of liquid crystal element |
| AU2001232349A1 (en) * | 2000-02-21 | 2001-08-27 | Kanebo Gohsen Limited | Modified cross-section fiber and production method therefor |
| JP2005091899A (en) | 2003-09-18 | 2005-04-07 | Kanebo Ltd | Rubbing cloth |
| JP2007232938A (en) | 2006-02-28 | 2007-09-13 | Gurabitei:Kk | Rubbing cloth |
-
2007
- 2007-10-31 KR KR1020097008404A patent/KR101494018B1/en not_active IP Right Cessation
- 2007-10-31 WO PCT/JP2007/071228 patent/WO2008056584A1/en active Application Filing
- 2007-10-31 JP JP2008543042A patent/JP5009300B2/en not_active Expired - Fee Related
- 2007-10-31 CN CNA200780041320XA patent/CN101611344A/en active Pending
- 2007-11-06 TW TW096141784A patent/TWI393811B/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243393A (en) * | 2010-05-14 | 2011-11-16 | 台元纺织股份有限公司 | Alignment device and method |
| CN102243393B (en) * | 2010-05-14 | 2013-10-16 | 台元纺织股份有限公司 | Alignment device and method |
| CN103472625A (en) * | 2013-08-30 | 2013-12-25 | 合肥京东方光电科技有限公司 | Rubbing cloth and preparation method and preparation device thereof |
| WO2015027618A1 (en) * | 2013-08-30 | 2015-03-05 | 合肥京东方光电科技有限公司 | Rubbing cloth, and preparation method therefor and preparation apparatus thereof |
| CN103472625B (en) * | 2013-08-30 | 2016-05-04 | 合肥京东方光电科技有限公司 | A kind of friction cloth, its preparation method and preparation facilities |
| CN103558715A (en) * | 2013-11-12 | 2014-02-05 | 北京京东方光电科技有限公司 | Friction cloth and friction device |
| CN103558715B (en) * | 2013-11-12 | 2016-04-06 | 北京京东方光电科技有限公司 | Friction cloth and rubbing device |
| CN105589258A (en) * | 2014-10-23 | 2016-05-18 | 杉原恭卫 | Rubbing cloth used for LCD manufacturing |
| CN105807501A (en) * | 2016-06-03 | 2016-07-27 | 京东方科技集团股份有限公司 | Rubbing cloth and preparation method thereof, friction roller and method for pressure detection of friction roller |
| CN105807501B (en) * | 2016-06-03 | 2018-07-06 | 京东方科技集团股份有限公司 | Friction cloth and preparation method thereof, friction roller, friction roller pressure detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200827503A (en) | 2008-07-01 |
| KR20090079210A (en) | 2009-07-21 |
| JP5009300B2 (en) | 2012-08-22 |
| JPWO2008056584A1 (en) | 2010-02-25 |
| KR101494018B1 (en) | 2015-02-16 |
| TWI393811B (en) | 2013-04-21 |
| WO2008056584A1 (en) | 2008-05-15 |
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