CN103558715A - Friction cloth and friction device - Google Patents
Friction cloth and friction device Download PDFInfo
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- CN103558715A CN103558715A CN201310561135.0A CN201310561135A CN103558715A CN 103558715 A CN103558715 A CN 103558715A CN 201310561135 A CN201310561135 A CN 201310561135A CN 103558715 A CN103558715 A CN 103558715A
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Abstract
The invention discloses a friction cloth and a friction device and relates to the technical field of liquid crystal display. The friction cloth and the friction device are designed for reducing the frictional static during a friction process. The friction cloth disclosed by the invention comprises an electric-conductive yarn, wherein the electric-conductive yarn comprises an electric-conductive fiber which comprises a fiber substrate and conductive agents scattered in the fiber substrate. The friction cloth and the friction device disclosed by the invention are suitable for a manufacturing process of a liquid crystal panel.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate in particular to a kind of friction cloth and rubbing device.
Background technology
In liquid crystal panel preparation process, need to be at TFT(Thin Film Transistor, thin film transistor (TFT)) substrate and CF(Color Filter, colored filter) in the alignment films of substrate, form respectively orientation groove, like this, when by TFT substrate and CF substrate to box, and while injecting liquid crystal molecule therein, liquid crystal molecule just can form tilt angle according to orientation groove, is convenient to liquid crystal molecule and under electric field action, carries out deflection.
The general friction process that adopts forms orientation groove in alignment films, for example, can utilize the friction cloth sticking on friction roller to rub fast at alignment layer surface, thereby in alignment films, form fine orientation groove.
In the forming process of orientation groove, friction cloth can produce frictional static when alignment layer surface rubs, and this frictional static may make the short circuit of TFT substrate, thereby damage TFT element causes TFT substrate to produce defect, makes liquid crystal panel quality bad.In addition, the frictional static producing during friction also can increase the quantity of friction chip, and in friction process, friction chip is clipped between friction cloth and substrate and can causes substrate discontinuity, thereby produces unwanted cut, causes the display quality of liquid crystal panel to reduce.
Summary of the invention
Fundamental purpose of the present invention is, a kind of friction cloth and rubbing device are provided, and can reduce the frictional static in friction process, has effectively improved the qualification rate of liquid crystal panel.
For achieving the above object, the present invention adopts following technical scheme:
On the one hand, the invention provides a kind of friction cloth, comprise conductive yarn, described conductive yarn comprises conductive fiber, and described conductive fiber comprises fibre substrate and is scattered in the conductive agent of described fibre substrate inside.
Preferably, described conductive agent comprises conductive matrices and dispersed particle, and described conductive matrices is for conduct charges, and described dispersed particle is used for making described conductive matrices to disperse to distribute.
Preferably, described conductive matrices comprises: at least one of carbon nano-tube, nickel nano wire, nanowires of gold, nano silver wire and Graphene.
Alternatively, described dispersed particle comprises: metal particle and/or fine particle composition.
Alternatively, described metal particle comprises: at least one in gold, silver, copper, iron, tin, zinc, aluminium, manganese and titanium;
Described fine particle composition comprises: at least one in silver oxide, titanium dioxide, manganese oxide, zinc paste, tin oxide, nickel oxide, iron oxide, aluminium oxide, cuprous sulfide and copper sulfide.
Alternatively, the particle diameter≤500nm of described dispersed particle.
Preferably, the particle diameter≤50nm of described dispersed particle.
Further, in described conductive fiber, the content of described conductive agent is 5～50wt.%.
Preferably, in described conductive fiber, the content of described conductive agent is 7～20wt.%.
Further preferably, in described conductive fiber, the content of described conductive agent is 10wt.%.
Alternatively, described conductive yarn also comprises non-conductive fiber, and described non-conductive fiber and described conductive fiber disperse to distribute.
Further, described friction cloth also comprises non-conductive yarn, and described non-conductive yarn comprises non-conductive fiber; Described conductive yarn and described non-conductive yarn are interspersed.
Preferably, the electrostatic of described non-conductive fiber is different with the electrostatic of described conductive fiber.
Alternatively, in described friction cloth, the volume content of described conductive yarn is 15～100%.
On the other hand, the present invention also provides a kind of rubbing device, comprises the friction cloth described in any that technique scheme provides.
Friction cloth and rubbing device that the embodiment of the present invention provides, because the conductive yarn in provided friction cloth comprises conductive fiber, and conductive fiber comprises fibre substrate and is scattered in the conductive agent of fibre substrate inside, conductive agent can be at the inner conductive channel that forms of fibre substrate, therefore, when friction cloth is when alignment layer surface rubs, the frictional static producing can be derived along the conductive channel of conductive fiber inside in conductive yarn, and by corona discharge, frictional static is removed, can effectively reduce frictional static to being arranged on circuit in alignment films and the damage of TFT element, and, the minimizing of frictional static, the chip that also can make to rub reduces, thereby has reduced the unnecessary cut being caused by friction chip, can effectively improve the qualification rate of alignment films, improves the display quality of liquid crystal panel.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The cross sectional representation of single conductive fiber in a kind of cloth that rubs that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the friction cloth that the employing V-type weaving manner braiding that Fig. 2 (a) provides for the embodiment of the present invention forms;
The schematic diagram of the friction cloth that the employing W type weaving manner braiding that Fig. 2 (b) provides for the embodiment of the present invention forms;
In a kind of cloth that rubs that Fig. 3 provides for the embodiment of the present invention, produce the situation schematic diagram of static charge when conductive yarn and non-conductive yarn and alignment film rubbing;
In the another kind friction cloth that Fig. 4 provides for the embodiment of the present invention, produce the situation schematic diagram of static charge when conductive yarn and non-conductive yarn and alignment film rubbing;
In the another kind friction cloth that Fig. 5 provides for the embodiment of the present invention, produce the situation schematic diagram of static charge when conductive yarn and non-conductive yarn and alignment film rubbing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of friction cloth, comprises conductive yarn, and wherein, conductive yarn comprises conductive fiber, and conductive fiber comprises fibre substrate and is scattered in the conductive agent of this fibre substrate inside.
The friction cloth that the embodiment of the present invention provides, because conductive yarn comprises conductive fiber, and conductive fiber comprises fibre substrate and is scattered in the conductive agent of fibre substrate inside, conductive agent can be at the inner conductive channel that forms of fibre substrate, therefore, when friction cloth is when alignment layer surface rubs, the frictional static producing can be derived along the conductive channel of conductive fiber inside in conductive yarn, and by corona discharge, frictional static is removed, can effectively reduce frictional static to being arranged on circuit in alignment films and the damage of TFT element; And, the minimizing of frictional static, the chip that also can make to rub reduces, thereby has reduced the unnecessary cut being caused by friction chip, can effectively improve the qualification rate of alignment films, improves the display quality of liquid crystal panel.
It is emphasized that in the embodiment of the present invention, conductive agent is well-dispersed in fibre substrate inside with micron or Nano grade, rather than with the form of disperseing, is attached to the surface of fibre substrate.For example, be illustrated in figure 1 the cross sectional representation of the single conductive fiber 1 that the embodiment of the present invention provides, conductive agent 2 is well-dispersed in fibre substrate 3 inside, in fibre substrate 3, form network structure, make conductive fiber 1 become semiconductor or conductor, thereby play electric action, to prevent frictional static.
In the embodiment of the present invention, described conductive yarn is the yarn that includes conductive fiber, is about to the yarn that conductive fiber forms by spinning process.Wherein, the conductive fiber of spinning use can be long fibre, can be also staple fibre, and the embodiment of the present invention is not construed as limiting this.
The fibre substrate that forms conductive fiber in above-described embodiment is the main material of preparing conductive fiber, be generally high polymer fibre, generally can comprise synthon or semisynthetic fibre, such as mekralon (polypropylene fibre), polyacrylonitrile fibre (acrylic fibers), vinylon (vinylon), polyamide fibre (continuous synthetic fibre), poly terephthalic acid second two fat fibers (terylene), polyvinyl chloride fibre (polyvinyl chloride fibre), acetate fiber etc.
The conductive agent that forms conductive fiber in above-described embodiment is a kind of compound substance, i.e. the compound substance of conductive matrices and dispersed particle, and wherein, conductive matrices is mainly used in conduct charges, and dispersed particle is mainly used in making conductive matrices to disperse to distribute.In conductive agent, mainly rely on conductive matrices conduct charges, when conductive matrices and dispersed particle compound tense, under the effect of dispersed particle, the compound substance of the two can be well dispersed in fibre substrate, thereby obviously improves the electric conductivity of friction cloth.
In this conductive agent, conductive matrices can be at least one in carbon nano-tube, nickel nano wire, nanowires of gold, nano silver wire and Graphene.These conductive matrices all have excellent electric conductivity and excellent mechanical property, the friction cloth that uses these conductive matrices to prepare, not only can effectively improve the electric conductivity of friction cloth, can also effectively improve the mechanical property of friction cloth, the generation of the chip that can further prevent from rubbing in friction process.It should be noted that, above-mentioned conductive matrices all belongs to nanoscale yardstick, in the embodiment of the present invention, the concrete size of conductive matrices (such as diameter or length) and specification (such as purity) is not remake to restriction further; Certainly, conductive matrices can be also micron order material, such as carbon fiber etc.
In this conductive agent, dispersed particle can be metal particle or the fine particle composition of any kind, or the combination of these two.For example, dispersed particle can comprise the metal particle with electric conductivity, make it not only can play the effect of dispersion, can also play the effect of conduction, the electric conductivity that can further improve friction cloth, these metals can comprise: at least one in gold, silver, copper, iron, tin, zinc, aluminium, manganese and titanium; Certainly, dispersed particle also can comprise the good fine particle composition of stability, make it when playing peptizaiton, in the serviceable life that can also improve friction cloth, these metallic compounds can comprise: at least one in silver oxide, titanium dioxide, manganese oxide, zinc paste, tin oxide, nickel oxide, iron oxide, aluminium oxide, cuprous sulfide and copper sulfide; In addition, dispersed particle also can comprise any one or a few the combination in above-mentioned metal particle and fine particle composition simultaneously.
It should be noted that, in the embodiment of the present invention, in order to make dispersed particle play as much as possible peptizaiton, the particle diameter of dispersed particle should be no more than 500nm, and further preferably, the particle diameter of dispersed particle is no more than 50nm.
Particularly, in the embodiment of the present invention, conductive agent can be carbon nano-tube/titanic oxide compound substance, wherein, carbon nano-tube is monodimension nanometer material, and caliber is no more than 100nm, because its length-diameter ratio is greater than 1000, the conductive agent that contains carbon nano-tube can form the network structure of connection in fibre substrate, and carbon nano-tube has excellent electric conductivity and heat conductivility, thereby the frictional static producing in friction process, heat etc. can be led away rapidly along network structure; In addition, carbon nano-tube intensity is very large, thereby can also improve the anti-wear performance of friction cloth, can effectively reduce the generation of the chip that rubs in friction process; Titania can increase substantially the dispersive property of carbon nano-tube, make it to be well-dispersed in fibre substrate inside with nanoscale, obviously reduce the percolation threshold of conductive fiber, with conductive agent addition seldom, just can obtain the conductive fiber of electric conductivity excellence, obviously reduce the cost of preparing conductive fiber.So-called percolation threshold, refers to a critical value of conductive agent content in fibre substrate, and when conductive agent content reaches this critical value, the electric conductivity of the conductive fiber type of undergoing mutation improves.
It should be noted that, the embodiment of the present invention is not construed as limiting for the source of conductive agent, can obtain by commercially available mode, also can obtain by the mode of preparation, for example, for carbon nano-tube/titanic oxide compound substance, its preparation method can be sol-gel process, sol impregnation method, mixing method, chemical gas-phase method, physical deposition method, hydro-thermal method, solvent-thermal method or simple mixing method etc.
In addition, the embodiment of the present invention is also not construed as limiting the micromechanism of conductive agent, for example, for the micromechanism of carbon nano-tube/titanic oxide compound substance, can be the simple shape that mixes, and carbon nano-tube and titania are simple admixture; Can be parcel shape, titania adheres to or is wrapped in carbon nano tube surface; Also can be for being wound around shape, carbon nano-tube is wound around or is wrapped on titanium dioxide surface; Or the combination of above any two or three situation, no matter which kind of micromechanism needs only the compound substance for both.
In the embodiment of the present invention, the electric conductivity of conductive fiber increases with the increase of conductive agent content, but the spinnability of conductive fiber reduces with the increase of conductive agent content, thereby, guarantee that at the same time, under the electric conductivity of conductive fiber and the condition of spinnability, the content of conductive agent be take 5～50wt.% as suitable; Yet after the content of conductive agent is increased to 20wt.%, the electric conductivity of conductive fiber is not obvious with the increase raising of conductive agent content, and conductive agent cost is higher, thereby, the consideration of integrated cost and electric conductivity, the optimum content of conductive agent is 7～20wt.%; Electric conductivity is the trend of increase on the whole with the increase of conductive agent content, yet, when conductive agent content is 10wt.%, electric conductivity increases suddenly, all higher than the electric conductivity when conductive agent content is 9wt.% and 11wt.%, thereby, further preferably, in the embodiment of the present invention, conductive agent content is 10wt.%.
Particularly, can form conductive fiber by spinning technique, detailed process is: fibre substrate presoma and conductive agent are fully mixed, add appropriate solvent with by the abundant swelling of fibre substrate presoma, thereby form the high viscosity slurry that is dispersed with conductive agent, be the potpourri of fibre substrate presoma and conductive agent, then heating for dissolving, to reduce viscosity, to increase mobility, then obtains conductive fiber by wet spinning or dry-spinning process.So-called fibre substrate presoma, refer to the material that can form corresponding fibre substrate, for example, when fibre substrate is polyvinyl chloride fibre (polyvinyl chloride fibre), its presoma is Corvic, that is to say by Corvic and can prepare polyvinyl chloride fibre (polyvinyl chloride fibre).Further, in order to improve the mechanical property of conductive fiber, the conductive fiber that spinning technique need to be obtained carries out aftertreatment, and general technological process is: the conductive fiber that spinning technique is obtained is stretched 4～5 times in drawing medium, then be dried, obtain the conductive fiber of long filament shape.
In the embodiment of the present invention, friction cloth can adopt as 2(a) as shown in V-type weaving manner braiding form, also can adopt as 2(b) as shown in the braiding of W type weaving manner form, the embodiment of the present invention is not construed as limiting this.
The friction cloth that the embodiment of the present invention provides can only be formed by conductive yarn braiding, also can be woven and form together with non-conductive yarn by conductive yarn, and conductive yarn and non-conductive yarn is interspersed.Wherein, non-conductive yarn comprises non-conductive fiber, is the yarn that non-conductive fiber is formed by spinning process.
It should be noted that, as shown in Fig. 2 (a) or Fig. 2 (b), friction cloth generally includes the base fabric being comprised of warp thread and weft yarn and the pile yams part that yarn fluffing is formed, conductive yarn described in the embodiment of the present invention and non-conductive yarn are interspersed and refer in the friction warp thread of cloth and weft yarn that conductive yarn and non-conductive yarn are interspersed, and in pile yams, conductive yarn and non-conductive yarn are also interspersed.
The density that in friction cloth, conductive yarn and non-conductive yarn are interspersed can regulate according to the actual requirements, such as, can be that every 10 conductive yarns and every 10 non-conductive yarns are staggered successively, can be that every 10 conductive yarns and every 5 non-conductive yarns are staggered successively, also can be as shown in Fig. 2 (a) or Fig. 2 (b), every 1 conductive yarn 40 is staggered successively with every 1 non-conductive yarn 50, so long as be interspersed, the embodiment of the present invention is not construed as limiting this.
In the friction cloth that the embodiment of the present invention provides, the number content of conductive yarn can be 15～100%, certainly, also can represent with volume content, the volume content that is conductive yarn can be 15～100%, and along with the increase of conductive yarn content, the electric conductivity of friction cloth increases.
It should be noted that, in the embodiment of the present invention, in conductive yarn, the fibre substrate of conductive fiber is generally high polymer fibre, in non-conductive yarn, the main material of non-conductive fiber is also high polymer fibre conventionally, and the kind that the kind that can select of the high polymer fibre of non-conductive fiber can be selected with fibre substrate in conductive fiber is identical.
When high polymer fibre that the high polymer fibre that fibre substrate is used in conductive fiber is used with non-conductive fiber is identical, the electrostatic of conductive fiber is identical with the electrostatic of non-conductive fiber, thereby the electrostatic of conductive yarn is also identical with the electrostatic of non-conductive yarn.So-called electrostatic, produces the polarity of static, the sequence that various materials are lined up successively while referring to according to two kinds of material phase mutual friction.According to electrostatic table, during two kinds of material frictions, be positioned at material positively charged above, the material being positioned at is below electronegative, every kind of corresponding electrostatic of material, thereby can be according to the high polymer fibre of the high polymer fibre of fibre substrate in conductive fiber and non-conductive fiber the position in electrostatic table, charged situation after judgement conductive fiber and non-conductive fiber and alignment film rubbing.
For example, as shown in Figure 3, when friction cloth rubs fast on alignment films 6 surfaces, because conductive yarn 41 is identical with the electrostatic of non-conductive yarn 51, thereby the two produces identical electric charge, the electric charge on non-conductive yarn 51 will be led away along conductive yarn 41, by corona discharge, electric charge be removed.
The high polymer fibre that in conductive fiber, fibre substrate is used, the high polymer fibre that also can use from non-conductive fiber is different, the electrostatic of conductive fiber is different with the electrostatic of non-conductive fiber, thereby the electrostatic of conductive yarn is also different with the electrostatic of non-conductive yarn.The main matter that it should be noted in the discussion above that alignment films is generally polyimide resin, is also a kind of superpolymer, thereby also has an electrostatic.The electrostatic of conductive yarn is different with the electrostatic of non-conductive yarn, can be divided into two kinds of situations, the electrostatic of conductive yarn and non-conductive yarn all higher than or all lower than the electrostatic of alignment films, another kind ofly lay respectively at the both sides of the electrostatic of alignment films for the electrostatic of the electrostatic of conductive yarn and non-conductive yarn.
When the electrostatic of conductive yarn and non-conductive yarn all higher than or during all lower than the electrostatic of alignment films, friction cloth is when alignment layer surface rubs fast, conductive yarn will produce identical electric charge with non-conductive yarn, in the time of friction, between conductive yarn and non-conductive yarn, also there is certain friction, thereby also can produce a certain amount of contrary electric charge between the two.For example, as shown in Figure 4, when the electrostatic of conductive yarn 42 and non-conductive yarn 52 is all higher than the electrostatic of alignment films 6, and the electrostatic of conductive yarn 42 is during higher than the electrostatic of non-conductive yarn 52, when friction cloth rubs fast on alignment films 6 surfaces, conductive yarn 42 and the non-conductive yarn 52 of friction cloth are positively charged, alignment films 6 is electronegative, simultaneously, in friction process, between the conductive yarn 42 of friction cloth and non-conductive yarn 52, also produce friction, between the two, also can produce a certain amount of contrary electric charge, thereby conductive yarn 42 is positively charged, non-conductive yarn 52 is electronegative, the negative charge that non-conductive yarn 52 produces will neutralize the positive charge producing in a part and alignment films 6 friction processes, after neutralization, the positive charge of conductive yarn 42 and the remaining positive charge of non-conductive yarn 52 will be led away along conductive yarn 42, by corona discharge, electric charge is removed.
When the electrostatic of conductive yarn and the electrostatic of non-conductive yarn lay respectively at the both sides of electrostatic of alignment films, friction cloth is when alignment layer surface rubs fast, conductive yarn and non-conductive yarn produce respectively contrary electric charge, to there is neutralization in the two, remaining a small amount of electric charge will be led away along conductive yarn.For example, as shown in Figure 5, when the electrostatic of conductive yarn 43 electrostatic higher than alignment films 6, the electrostatic of alignment films 6 is during higher than the electrostatic of non-conductive yarn 53, when friction cloth rubs fast on alignment films 6 surfaces, conductive yarn 43 is positively charged, and non-conductive yarn 53 is electronegative, to there is neutralization in the two, and remaining a small amount of electric charge will be led away along conductive yarn 43.Meanwhile, it should be noted in the discussion above that the position rubbing mutually with conductive yarn 43 and non-conductive yarn 53 respectively in alignment films 6 also produces contrary electric charge, also can there is neutralization in the two, thereby also reduced the frictional static in alignment films 6.
Therefore, preferably, in friction cloth, in conductive fiber, the electrostatic of the electrostatic of the high polymer fibre of fibre substrate and the high polymer fibre of non-conductive fiber is different, and the electrostatic of the two lays respectively at the both sides of the electrostatic of alignment films, and in friction cloth, conductive yarn and non-conductive yarn are interspersed successively, be that every conductive yarn is around all non-conductive yarn, every non-conductive yarn is around all conductive yarn.
It should be noted that, in other embodiments of the invention, in the conductive yarn providing, except comprising conductive fiber, can also comprise non-conductive fiber, and conductive fiber and non-conductive fiber disperse to distribute, and are about to the yarn that conductive fiber and non-conductive fiber form by mix spinning technique.Wherein, in conductive fiber, the high polymer fibre of fibre substrate and the high polymer fibre of non-conductive fiber also can be with the selection of high polymer fibre of fibre substrate in above-mentioned described conductive fiber, the selection mode of the high polymer fibre of non-conductive fiber be identical, the weaving manner of friction cloth also can be identical with the weaving manner of above-mentioned described friction cloth, and also can reach above technique effect, repeat no more herein.
It should be noted that, in the embodiment of the present invention, consider the combination property of friction cloth, in conductive fiber and non-conductive fiber, can also comprise a small amount of adjuvant, for example, can add at least one in fire retardant, lubricant, shrinking agent, antioxidant, English optical brightener, end-capping reagent and heat-resistant agent, the embodiment of the present invention is not construed as limiting this.
Accordingly, the present invention also provides a kind of preparation method of the cloth that rubs, and the friction cloth for the preparation of described above, comprises the following steps:
S1, prepare conductive fiber, conductive fiber comprises fibre substrate and is scattered in the conductive agent of fibre substrate inside;
S2, prepare conductive yarn, conductive yarn comprises conductive fiber;
S3, braiding friction cloth, friction cloth comprises conductive yarn.
The preparation method of the friction cloth that the embodiment of the present invention provides, can prepare above-mentioned described any one friction cloth, because the conductive yarn in rubbed cloth comprises conductive fiber, and conductive fiber comprises fibre substrate and is scattered in the conductive agent of fibre substrate inside, conductive agent can be at the inner conductive channel that forms of fibre substrate, therefore, when friction cloth is when alignment layer surface rubs, the frictional static producing can be derived along the conductive channel of conductive fiber inside in conductive yarn, and by corona discharge, frictional static is removed, can effectively reduce frictional static to being arranged on circuit in alignment films and the damage of TFT element, and, the minimizing of frictional static, the chip that also can make to rub reduces, thereby has reduced the unnecessary cut being caused by friction chip, can effectively improve the qualification rate of alignment films, improves the quality of liquid crystal panel.
Particularly, the above-mentioned step S1 for preparing conductive fiber specifically can comprise the following steps:
S11, provide fibre substrate presoma and conductive agent;
S12, fibre substrate presoma and conductive agent are mixed to form to the potpourri of fibre substrate presoma and conductive agent;
S13, the potpourri of fibre substrate presoma and conductive agent is formed to conductive fiber by spinning technique.
Consider the combination property of friction cloth, in conductive fiber, can also comprise a small amount of adjuvant, for example, can add at least one in fire retardant, lubricant, shrinking agent, antioxidant, English optical brightener, end-capping reagent and heat-resistant agent, preparation method for this conductive fiber, is specifically as follows:
S11 ', provide fibre substrate presoma and conductive agent, and adjuvant;
S12 ', fibre substrate presoma and conductive agent and adjuvant are mixed to form to the potpourri of fibre substrate presoma and conductive agent and adjuvant;
S13 ', the potpourri of fibre substrate presoma and conductive agent and adjuvant is formed to conductive fiber by spinning technique.
Particularly, the step S2 for preparing conductive yarn specifically can comprise following two kinds of modes:
S21, conductive fiber is formed to conductive yarn by spinning process; Or,
S21 ', conductive fiber is formed to conductive yarn by spinning process together with non-conductive fiber.
Particularly, the step S3 of braiding friction cloth specifically can comprise following two kinds of modes:
S31, use conductive yarn braiding friction cloth; Or,
S31 ', use conductive yarn weave friction cloth together with non-conductive yarn, and conductive yarn and non-conductive yarn are interspersed.
On the other hand, the present invention also provides a kind of rubbing device, comprises described any friction cloth of above-described embodiment.Therefore also can realize the technique effect that above-mentioned friction cloth can reach, repeat no more herein.Particularly, rubbing device can comprise friction roller and stick on the friction cloth on this friction roller.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection domain with claim.
Claims (15)
1. a friction cloth, comprises conductive yarn, it is characterized in that, described conductive yarn comprises conductive fiber, and described conductive fiber comprises fibre substrate and is scattered in the conductive agent of described fibre substrate inside.
2. friction cloth according to claim 1, is characterized in that, described conductive agent comprises conductive matrices and dispersed particle, and described conductive matrices is for conduct charges, and described dispersed particle is used for making described conductive matrices to disperse to distribute.
3. friction cloth according to claim 2, is characterized in that, described conductive matrices comprises: at least one in carbon nano-tube, nickel nano wire, nanowires of gold, nano silver wire and Graphene.
4. friction cloth according to claim 2, is characterized in that, described dispersed particle comprises: metal particle and/or fine particle composition.
5. friction cloth according to claim 4, is characterized in that,
Described metal particle comprises: at least one in gold, silver, copper, iron, tin, zinc, aluminium, manganese and titanium;
Described fine particle composition comprises: at least one in silver oxide, titanium dioxide, manganese oxide, zinc paste, tin oxide, nickel oxide, iron oxide, aluminium oxide, cuprous sulfide and copper sulfide.
6. friction cloth according to claim 4, is characterized in that, the particle diameter≤500nm of described dispersed particle.
7. friction cloth according to claim 6, is characterized in that, the particle diameter≤50nm of described dispersed particle.
8. according to the friction cloth described in claim 1-7 any one, it is characterized in that, in described conductive fiber, the content of described conductive agent is 5～50wt.%.
9. friction cloth according to claim 8, is characterized in that, in described conductive fiber, the content of described conductive agent is 7～20wt.%.
10. friction cloth according to claim 9, is characterized in that, in described conductive fiber, the content of described conductive agent is 10wt.%.
11. according to the friction cloth described in claim 1-7 any one, it is characterized in that, described conductive yarn also comprises non-conductive fiber, and described non-conductive fiber and described conductive fiber disperse to distribute.
12. according to the friction cloth described in claim 1-7 any one, it is characterized in that, also comprise non-conductive yarn, described non-conductive yarn comprises non-conductive fiber; Described conductive yarn and described non-conductive yarn are interspersed.
13. friction cloth according to claim 12, is characterized in that, the electrostatic of described non-conductive fiber is different from the electrostatic of described conductive fiber.
14. friction cloth according to claim 12, is characterized in that, in described friction cloth, the volume content of described conductive yarn is 15～100%.
15. 1 kinds of rubbing devices, is characterized in that, comprise the friction cloth described in claim 1-14 any one.
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| CN201310561135.0A CN103558715B (en) | 2013-11-12 | 2013-11-12 | Friction cloth and rubbing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106855665A (en) * | 2015-12-09 | 2017-06-16 | 三星显示有限公司 | Liquid crystal display and its manufacture method |
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| JPH07191321A (en) * | 1993-12-27 | 1995-07-28 | Matsushita Electric Ind Co Ltd | Manufacture of rubbing cloth and liquid crystal panel |
| JPH11249139A (en) * | 1998-02-27 | 1999-09-17 | Kyocera Corp | Rubbing cloth and liquid crystal display device |
| CN1550831A (en) * | 2003-05-15 | 2004-12-01 | 林天连布有限公司 | Friction cloth for manufacturing liquid crystal board |
| JP2007232938A (en) * | 2006-02-28 | 2007-09-13 | Gurabitei:Kk | Rubbing cloth |
| CN101611344A (en) * | 2006-11-07 | 2009-12-23 | 可乐丽贸易有限公司 | Friction cloth |
| CN101681066A (en) * | 2007-06-06 | 2010-03-24 | 东丽株式会社 | Rubbing cloth |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855665A (en) * | 2015-12-09 | 2017-06-16 | 三星显示有限公司 | Liquid crystal display and its manufacture method |
| 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 |
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| CN103558715B (en) | 2016-04-06 |
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