CN106400251A - Double-layer composite fabric and a production method and use thereof - Google Patents
Double-layer composite fabric and a production method and use thereof Download PDFInfo
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Abstract
The invention provides double-layer composite fabric and a production method and use thereof. The composite fabric comprises a polytetrafluoroethylene filament fabric layer and an other fiber fabric layer. The warp yarn density of the polytetrafluoroethylene filament fabric layer is 70-360/inch and the covering coefficient of the polytetrafluoroethylene filament fabric layer is 1500-2800; the average roughness of center lines of the surface of the polytetrafluoroethylene filament fabric layer is below 15[mu]m; the number of defects on the surface of the composite fabric is less than 30 every 100m<2>. The double-layer composite fabric has the advantages of fewer defects, low sliding friction coefficient, and durable wear resistance and the characteristics of simple process and low cost and can be applied to mechanical movement parts of sliding bearings.
Description
Technical field
The present invention relates to a kind of two-layer compound fabric and its production method and purposes.
Background technology
In recent years, with the fast development of machinery industry, the self-lubricating material containing fluorine element has become as the focus of glide material application, especially cannot refuel or be difficult to the place refueled, self-lubricating material has the characteristics that non-maintaining or reduces frequency of maintenance.With the development of technology, scientific research personnel have developed one kind using pure polyflon as press face, is applied in Nonlubricated bearing.But, in actual use, because polyflon easily cold flow under high load, after being subject to external force for a long time, non-response deformation occurs, lead to sliding bearing that heavy wear occurs in use, the phenomenon of rupture even occurs, substantially reduces the service life of bearing, or even the life security that operating personnel can be threatened.
In addition, if PTFE multifilament and other fibers are interleaved prepared hd dual-layered fabric, because PTFE multifilament quantity is more, produce severe friction with back-bearer, menopause tablet, heald, reed in weaving process, and the regain of PTFE is zero, easily produce electrostatic, filoplume in the lighter, cause opening unclear, thus the phenomenons such as broken yarn, hand pick, knot, tissue error occur；Cracked ends in severe one, leads to weaving cannot be carried out.Therefore, if the fabric being woven into is applied to bearing, in use because the fault on cloth cover makes that the PTFE fabric film forming as rubbing surface is uneven, sliding friction is unstable, causes cloth cover damaged what is more, affects bearing service life.
As disclosed a kind of two-layer fabric containing polytetrafluoroethylene fibre and application thereof in Chinese publication CN103849988A, this two-layer fabric is the fibrous layer access node all-in-one-piece being formed polytetrafluoroethylene fibre layer and other fibers by binding place.Under conditions of though the two-layer fabric of this invention can be used on top load, and have the characteristics that coefficient of friction is little, peel strength is high, stress deformation is little, but this invention increased the difficulty of fabric knitting, in weaving process, irregular to easily cause fabric face wrinkling for two kinds of warp tensions, two-layer fabric is generally high-density fabric simultaneously, the phenomenons such as broken yarn, hand pick, knot, tissue error easily occur in weaving process, causes the situation more than fabric defects number；Cracked ends in severe one, leads to weaving cannot be carried out.Additionally, two-layer fabric surface-defect is many, fabric effective rate of utilization declines, and causes cost increase.
Content of the invention
Have that the coefficient of sliding friction is low, the two-layer compound fabric of wear-resisting time-consuming length, flat appearance it is an object of the invention to provide a kind of.
Another object of the present invention is to providing a kind of process is simple, the production method of the two-layer compound fabric of low cost.
The technical solution of the present invention is as follows：Two-layer compound fabric of the present invention comprises fluorine element filament yarn fabric layer and other fiber fabric layers, the warp count of described fluorine element filament yarn fabric layer is 70～360 pieces/inch, the coverage coefficient of described fluorine element filament yarn fabric layer is 1500～2800, the center line average roughness of described fluorine element filament yarn fabric layer surface below 15 μm, the every 100m in surface of this compound fabric2Interior fault number is less than 30.
The two-layer compound fabric of the present invention, the fiber preferably comprising other fabrics is polyester fiber, Fypro, aromatic polyamide fibre, polyphenylene sulfide fibre, polyimide fiber, any one or a few in glass fibre.
The thickness of the two-layer compound fabric of the present invention is preferably 0.2～1.0mm.
The coefficient of sliding friction of the two-layer compound fabric of the present invention is preferably shorter than 0.10.
The wear-resisting time-consuming of the two-layer compound fabric of the present invention is preferably more than 100 hours.
The invention has the beneficial effects as follows：The two-layer compound fabric of the present invention has the advantages that fault is few, the coefficient of sliding friction is low, wear-resisting time-consuming length, flat appearance, also has the features such as process is simple, low cost, can be applicable in sliding bearing mechanical moving element.
Specific embodiment
The two-layer compound fabric of the present invention comprises fluorine element filament yarn fabric layer and other fiber fabric layers, the warp count of described fluorine element filament yarn fabric layer is 70～360 pieces/inch, the coverage coefficient of described fluorine element filament yarn fabric layer is 1500～2800, the center line average roughness of described fluorine element filament yarn fabric layer surface below 15 μm, the every 100m in surface of this compound fabric2Interior fault number is less than 30.When the two-layer compound fabric that fluorine element filament yarn fabric and other fiber layer fabrics are composited is applied to bearing, during abrasion, due to rubbing surface all fluorine element filament yarn fabric, it is damaged that this fluorine element filament yarn fabric layer is subject to external force friction effect to occur, fluorine element long filament powdered, in fluorine element powder immersion bottom fabric layer space, and forms one layer of fine and close thin film in bottom fabric layer, so that bottom fabric layer has extremely low coefficient of friction, play the effect of quick self-lubricating.And, the two-layer compound being composited using fluorine element filament yarn fabric and other fiber layer fabrics, fluorine element filament yarn fabric surface-defect is few, and production technology is also simple.But, if using fluorine element long filament and other yarns be interleaved obtained by two-layer fabric, during weaving, the fluorine element number of filaments as warp thread is more, in weaving process, each position produces severe friction with back-bearer, menopause tablet, heald, reed etc., and the regain of fluorine element long filament is zero, easily produces electrostatic, filoplume in the lighter, cause opening unclear, thus the phenomenons such as broken yarn, hand pick, knot, tissue error occur；Cracked ends in severe one, leads to weaving cannot be carried out.Therefore, if the fabric being woven into is applied to bearing, in use due to the fault on cloth cover make as rubbing surface fluorine element filament yarn fabric film forming uneven, sliding friction is unstable, more even cause cloth cover damaged, affect its service life in the parts such as bearing.Giving up when in sampling if having fault position, will also result in a certain degree of waste of fabric, thus improve the cost of product.
In two-layer compound fabric of the present invention, the warp count of fluorine element filament yarn fabric layer is 70～360 pieces/inch, preferably 100～360 pieces/inch, more preferably 140～360 pieces/inch, the coverage coefficient of fluorine element filament yarn fabric layer is 1500～2800, fluorine element filament yarn fabric is highdensity woven fabric, the fluorine element warp of intertexture can be made, the gap of weft yarn diminishes, arrangement is closely, so that the fluorine element long filament containing ratio of rubbing surface improves, when this fluorine element filament yarn fabric layer is with the friction of the dual faces such as metal, contact area increases, the fluorine element number of filaments of stress increases simultaneously, so that two-layer compound fabric has lower coefficient of friction and longer abrasion life-span；If the warp count of fluorine element filament yarn fabric layer is too low, using low Density, fluorine element long filament as rubbing surface warp, weft yarn, its gap becomes big, and fluorine element containing ratio is low, during use, other fiber fabric layers can be led to directly to rub with dual faces such as metals, coefficient of friction is led to become big, lubricant effect is poor, the abrasion lifetime of two-layer compound fabric.
In the two-layer compound fabric of the present invention, the center line average roughness of fluorine element filament yarn fabric layer surface is below 15 μm.Roughness is reflection fabric face smaller spacing and the unevenness of small peak valley, and roughness is bigger, then surface is more rough.If the center line average roughness of fluorine element filament yarn fabric layer surface is excessive, in the abrasion starting stage, fluorine element long filament is easily because external force is deformed, even torn from fabric and lead to rupture, the destruction so that whole composite is worn, leads to slide unit rupture and cause mechanical breakdown.
The every 100m in surface of two-layer compound fabric of the present invention2Interior fault number is less than 30.Here fault number is broken yarn, hand pick, knot.If every 100m2Interior fault number is more than 30, and when the fabric being woven into is applied to bearing, in use because the fault on cloth cover makes that the PTFE fabric film forming as rubbing surface is uneven, sliding friction is unstable, more even causes cloth cover damaged, affects bearing service life.Give up when in sampling if having fault position, yet can cause a certain degree of waste of fabric, and then improve the cost of product.The problems such as in view of being not in the factors such as hand pick, broken yarn, tissue error and cost in weaving process, the every 100m in surface of two-layer compound fabric of the present invention2Interior fault number preferably 15～30.
In the two-layer compound fabric of the present invention, fluorine element long filament is soluble poly tetrafluoroethene（PFA）Long filament, Kynoar（PVDF）Long filament, perfluoroethylene-propylene（FEP）Long filament, politef（PTFE）Long filament, ethylene-tetrafluoroethylene copolymer（ETFE）Long filament, polytrifluorochloroethylene（PCTFE）Any one in long filament.Fluorine element long filament has low-friction coefficient, height self lubricity, excellent chemical proofing, additionally, also excellent weatherability and thermostability and flame retardancy.Under the difficult occasion of oil-free lubrication or oiling maintaining, mechanical part can maintain normal operation.If using the fiber of other materials, because coefficient of friction is greatly it is impossible to realize oil-free lubrication.Fluorine element long filament preferred soluble poly tetrafluoroethene in the two-layer compound fabric of the present invention（PFA）Long filament and politef（PTFE）Long filament, further preferred politef（PTFE）Long filament.
In the two-layer compound fabric of the present invention, other fiber layer fabrics are the woven fabrics being formed by any one or a few processing in polyester fiber, Fypro, aromatic polyamide fibre, polyphenylene sulfide fibre, polyimide fiber, glass fibre, when this other fiber layer fabric is as supporting layer, there is preferable mechanic properties and ability of anti-deformation.The excellent abrasion resistance of laminate not only can be kept using above-mentioned fiber, the adhesive property between laminate and metal parts or plastic, rubber part can also be improved.When the fabric being formed using natural fibers such as cotton fibers is as supporting layer, the production cost of laminate thus can be reduced；When the fabric being formed using chemical fibre is as supporting layer, thus can improve abrasion resistance and the resistance to elevated temperatures of compound fabric；When using glass fibre, glass fibre preferred surface is through Overheating Treatment or specific glass fiber chemically treated and that resin bonding strength is higher.
The thickness of the two-layer compound fabric of the present invention is 0.2～1.0mm.If the thickness of this two-layer compound fabric is excessively thin, as other fiber fabric layers of supporting layer, it is easily damaged during abrasion, the destruction so that whole composite is worn, lead to slide unit rupture to occur and causes mechanical breakdown；If the thickness of fabric is blocked up, the compressive deformation of two-layer compound fabric is larger, is assembled in mechanical moving element, the accurate performance of impact part, when using particularly under the conditions of high loading, is susceptible to change in size, thus leading to part concentrated wear to aggravate, finally cause mechanical breakdown.
The grammes per square metre of two-layer compound fabric of the present invention is 190～800g/m2.If the grammes per square metre of this this two-layer compound fabric is less than 190g/m2If, the excessively thin softness of fabric, abrasion performance is bad, easily ruptures in friction process；If the grammes per square metre of this fabric is higher than 800g/m2If, production cost will increase.
The coefficient of sliding friction of the two-layer compound fabric of the present invention is less than 0.10.The coefficient of sliding friction of two-layer compound fabric of the present invention is less than 0.1.If the coefficient of sliding friction of this two-layer compound fabric is higher than 0.1, in use, more heat can be produced, lead to mechanical moving element local heating too fast, accelerated ageing, until occur damaged.
The wear-resisting time-consuming of two-layer compound fabric of the present invention is more than 100 hours.If the wear-resisting time-consuming of this two-layer compound fabric is too short, just illustrate that this bottom cloth is not enough to provide the sufficiently long time to be lubricated, so that oscillating bearing damages and lost efficacy, bearing life is short, frequently changes bearing, increases cost.
The production method of the two-layer compound fabric of the present invention, comprises the steps：
（1）The preparation of fluorine element filament yarn fabric：All warping, weaving are passed through using the fluorine element long filament that cross section is circular through, weft yarn, prepared fabric, then by fabric carry out concise, washing, be dried at 100～120 DEG C 2～5min, at 170～210 DEG C thermal finalization 2～5min, prepared fluorine element filament yarn fabric；
（2）The preparation of other fabrics：Warp, weft yarn are all weaved for other fibers of 20～600dtex using fineness, prepared fabric, again by fabric carry out concise, washing, at 100～120 DEG C be dried 2～5min, at 170～210 DEG C thermal finalization 2～5min, prepared coverage coefficient is 1500～2800 other fibroplastic fabrics；
（3）The preparation of two-layer compound fabric：Above-mentioned prepared fluorine element filament yarn fabric is carried out Compound Machining with other fabrics by the method for sewing or heat bonding or ultrasonic bonds or adhesive bond, when being processed using adhesive bonding, carry out the pressurized treatments of 30～120min under 0.5～2Mpa pressure condition, finally obtain finished product.
The fluorine element long filament of the present invention is circular cross-section, and during abrasion, the fluorine element chip that friction produces can form good fluorine element transfer membrane to the fluorine element long filament of circular cross section.And if fluorine element long filament is obtained using splitting embrane method, its cross section being irregular polygon, it is impossible to form fluorine element transfer membrane during abrasion, or even be there is cold flow by after external force, leading to sample by flash disruption.In addition, be used binding agent as two-layer compound fabric laminating type when, cross section is the good bonding strength of circular fluorine element long filament and binding agent, it is easy to bottom fabric layer to be combined into one, but using split embrane method be obtained cross section be irregular polygon fluorine element long filament, because surface energy is extremely low, with the adhesion extreme difference of binding agent it is impossible to form an entirety with primer.
The fiber number of above-mentioned fluorine element long filament is 100～1400dtex, including monofilament and two kinds of forms of multifilament.And when the situation that fluorine element long filament is multifilament, this multifilament is made up of by the monofilament of 10～200 radical.
Above-mentioned steps（1）In the complex method of fluorine element filament yarn fabric and other fiber layer fabrics that is obtained, can be fixed with stitching thread；Can also be using heat bonding or ultrasound wave laminating；Can also be processed using adhesive bonding, now need to carry out the pressurized treatments of 30～120min under 0.5～2Mpa pressure condition, finally obtain finished product.The two-layer compound fabric being obtained by above applying method, has simple production process, and fabric defects is few, and the coefficient of sliding friction is low and the excellent advantage of abrasion resistance, maintains the oil-free lubrication campaign of mechanical part.
By above-mentioned steps（1）The fluorine element filament yarn fabric being obtained with step (2) and other fabrics carry out respectively concise, washing, be dried, processed after thermal finalization, drying condition：2～5min is dried at 100～120 DEG C；Heat set conditions：Thermal finalization 2～5min at 170～210 DEG C.If baking temperature be less than 100 DEG C, the time be less than 2min if, fabric drying is not thorough, fabric residual moisture, after impact road thermal finalization processing；If baking temperature is higher than 120 DEG C, the time is more than 5min, fabric is excessive due to received heat, and fiber strength is impaired, and because thermal contraction leads to fabric size change to increase, further, since processing temperature is high, the time is long, increase energy consumption, lead to production cost to improve；Be less than 170 DEG C if heat setting temperature, if the time is less than 2min, fabric does not reach the effect of thermal finalization, and in use, because friction produces high temperature, fabric easily shrinks deformation, unstable wear to later stage fabric；If heat setting temperature be higher than 210 DEG C, if the time is longer than 5min, fabric strength is impaired, and change in size increases, the abrasion resistance of impact fabric.
Below by following examples, the invention will be further described, but protection scope of the present invention is not limited to embodiment, and each physical parameter in embodiment is measured by following method.
【Thickness】
According to JIS L 1096-1999 8.5, the pressure of test is 23.5kPa (240gf/cm2), measure 5 groups of data, take the final testing result as this sample for the meansigma methodss of 5 test results.
【Grammes per square metre】
According to JIS L 1096-1999 8.4, using electronic balance, weigh the weight of the sample of 10cm × 10cm, then the data obtained is taken advantage of 100, the test result of 5 times is calculated meansigma methodss, obtains the weight of every square metre of fabric.
【The center line average roughness on fluorine element filament yarn fabric surface】
Carry out the test of center line average roughness using Marl, Germany PS1 roughness tester（Ra）, and average through each random measurement of weft direction 5 times in fluorine element filament yarn fabric, as the center line average roughness on fluorine element filament yarn fabric surface.
【The coefficient of sliding friction】
Vertical friction wear measuring instrument is tested.Concrete method of testing is as follows：Under the conditions of 20 ± 2 DEG C of temperature, humidity 65 ± 4%, the circular fabric sample of a diameter of for cutting 7cm is fixed on friction test platform, fluorine element filament yarn fabric is as rubbing surface, and using roughness Ra in 0.03～0.05 friction testing head, tested under conditions of pressure 70MPa, speed 50mm/sec, record the coefficient of kinetic friction data of the abrasion stationary stage of this two-layer compound fabric, and to data averaged, that is, obtain the coefficient of sliding friction of two-layer compound fabric.
【Wear-resisting time-consuming】
Vertical friction wear measuring instrument is tested.Concrete method of testing is as follows：Under the conditions of 20 ± 2 DEG C of temperature, humidity 65 ± 4%, the circular fabric sample of a diameter of for cutting 7cm is fixed on friction test platform, fluorine element filament yarn fabric is as rubbing surface, and using roughness Ra in 0.03～0.05 friction testing head, tested under conditions of pressure 70MPa, speed 50mm/sec, record two-layer compound fabric starts to damaged time, the as wear-resisting time-consuming of two-layer compound fabric from abrasion.
Embodiment 1
Through, weft yarn all using cross section be circular, fiber number be 440dtex, monofilament number be the PTFE long filament of 60, by warping, weaving, 2/1 grey twill that prepared warp count is 70 pieces/inch, weft count is 54 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 2.5min, prepared thickness is the PTFE twills that 0.21mm, coverage coefficient are 1800；Warp, weft yarn are the PET long filament of 110dtex all using fineness, weaved by rapier loom, the fabric that prepared warp count is 86 pieces/inch, weft count is 86 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 2.5min, prepared thickness is the PET plain cloth that 0.23mm, coverage coefficient are 1803.Then above-mentioned prepared PTFE filament yarn fabric and PET filament yarn fabric are formed two-layer compound fabric by way of sewing.Carry out conditioning under the conditions of the two-layer compound fabric being obtained is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of two-layer compound fabric of the present invention, and be shown in Table 1.When this two-layer compound fabric is applied to mechanical moving element, PTFE filament yarn fabric is pasted on metal surface as rubbing surface, PET filament yarn fabric as binding face.
Embodiment 2
Warp, weft yarn are circle all using cross section, fiber number is 890dtex, monofilament number is the PTFE long filament of 90, by warping, weaving, 2/2 grey twill that prepared warp count is 75 pieces/inch, weft count is 61 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 110 DEG C 3min, at 190 DEG C thermal finalization 3min, prepared thickness is the PTFE twills that 0.28mm, coverage coefficient are 2275；Warp thread adopts the PPS long filament that fineness is 220dtex, weft yarn adopts the PET long filament that fineness is 220dtex, weaved by rapier loom, the fabric that prepared warp count is 75 pieces/inch, weft count is 75 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 110 DEG C 3min, at 190 DEG C thermal finalization 3min, prepared thickness is the PPS/PET intertexture plain cloth that 0.27mm, coverage coefficient are 2225.Then above-mentioned prepared PTFE filament yarn fabric and PPS/PET union are formed two-layer compound fabric by way of heat bonding.Carry out conditioning under the conditions of the two-layer compound fabric being obtained is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of two-layer compound fabric of the present invention, and be shown in Table 1.This two-layer compound fabric is applied to PTFE filament yarn fabric during mechanical moving element and is pasted on metal surface as rubbing surface, PPS/PET union as binding face.
Embodiment 3
Warp, weft yarn are circle all using cross section, fiber number is 110dtex, monofilament number is that the PTFE long filament of 30 passes through warping, weaving, 3/1 grey twill that prepared warp count is 225 pieces/inch, weft count is 200 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 105 DEG C 4min, at 210 DEG C thermal finalization 2min, prepared thickness is the PTFE twills that 0.24mm, coverage coefficient are 2500；Warp, weft yarn are the filament of glass fiber of 600dtex all using fineness, weaved by rapier loom, the fabric that prepared warp count is 41 pieces/inch, weft count is 41 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 105 DEG C 4min, at 210 DEG C thermal finalization 2min, prepared thickness is the filament of glass fiber plain cloth that 0.32mm, coverage coefficient are 2008.Then PTFE filament yarn fabric and filament of glass fiber fabric are fitted by binding agent, then moulding pressure be 1Mpa, pressing time carry out pressurized treatments for 60min, finally give two-layer compound fabric.Carry out conditioning under the conditions of prepared two-layer compound fabric is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of two-layer compound fabric of the present invention, and be shown in Table 1.This two-layer compound fabric is applied to PTFE filament yarn fabric during mechanical moving element and is pasted on metal surface as rubbing surface, filament of glass fiber fabric as binding face.
Embodiment 4
Warp, weft yarn are circle all using cross section, fiber number is that 110dtex, PFA monofilament passes through warping, weaving, the 5/2 satin weave fabric that prepared warp count is 340 pieces/inch, weft count is 204 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 3min, prepared thickness is the PFA satin fabric that 0.18mm, coverage coefficient are 2800；Warp, weft yarn are the Kevlar yarn of 146dtex all using fineness, weaved by rapier loom, the fabric that prepared warp count is 90 pieces/inch, weft count is 90 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 3min, prepared thickness is the Kevlar plain cloth that 0.21mm, coverage coefficient are 2658.Then PFA woven monofilament and Kevlar yarn fabric are passed through ultrasonic bonds, form two-layer compound fabric.Carry out conditioning under the conditions of prepared two-layer compound fabric is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of two-layer compound fabric of the present invention, and be shown in Table 1.This two-layer compound fabric is applied to PFA woven monofilament during mechanical moving element and is pasted on metal surface as rubbing surface, Kevlar yarn fabric as binding face.
Embodiment 5
Warp, weft yarn are FEP monofilament circular, that fiber number is for 55dtex all using cross section, by warping, weaving, the calicut that prepared warp count is 170 pieces/inch, weft count is 170 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 2.5min, prepared thickness is the FEP plain cloth that 0.21mm, coverage coefficient are 2600；Warp, weft yarn are the PET long filament of 110dtex all using fineness, weaved by rapier loom, the fabric that prepared warp count is 86 pieces/inch, weft count is 86 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 2.5min, prepared thickness is the PET plain cloth that 0.23mm, coverage coefficient are 1803.Then above-mentioned prepared FEP woven monofilament and PET filament yarn fabric are formed two-layer compound fabric by way of sewing.Carry out conditioning under the conditions of the two-layer compound fabric being obtained is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of two-layer compound fabric of the present invention, and be shown in Table 1.When this two-layer compound fabric is applied to mechanical moving element, FEP woven monofilament is pasted on metal surface as rubbing surface, PET filament yarn fabric as binding face.
Embodiment 6
Warp, weft yarn are circle all using cross section, fiber number is that the ETFE monofilament of 110dtex passes through warping, weaving, the calicut that prepared warp count is 140 pieces/inch, weft count is 120 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 3min, prepared thickness is the ETFE plain cloth that 0.21mm, coverage coefficient are 2726；Warp, weft yarn are the Kevlar yarn of 146dtex all using fineness, weaved by rapier loom, the fabric that prepared warp count is 90 pieces/inch, weft count is 90 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 3min, prepared thickness is the Kevlar plain cloth that 0.21mm, coverage coefficient are 2658.Then ETFE woven monofilament and Kevlar yarn fabric pass through ultrasonic bonds, form two-layer compound fabric.Carry out conditioning under the conditions of prepared two-layer compound fabric is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of two-layer compound fabric of the present invention, and be shown in Table 1.This two-layer compound fabric is applied to ETFE woven monofilament during mechanical moving element and is pasted on metal surface as rubbing surface, Kevlar yarn fabric as binding face.
Comparative example 1
Warp, weft yarn are circle all using cross section, fiber number is 890dtex, monofilament number is the Tynex of 90, by warping, weaving, prepared warp count is 75 pieces/inch, weft count is 61 piece/inch of 2/2 grey twill, by the fabric being obtained carry out refine, washing, be dried at temperature is 110 DEG C 3min, at 190 DEG C thermal finalization 3min, prepared thickness is the nylon twill that 0.28mm, coverage coefficient are 2275；Warp thread adopts the PPS long filament that fineness is 220dtex, weft yarn adopts the PET long filament that fineness is 220dtex, weaved by rapier loom, the fabric that prepared warp count is 75 pieces/inch, weft count is 75 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 110 DEG C 3min, at 190 DEG C thermal finalization 3min, prepared thickness is the PPS/PET intertexture plain cloth that 0.27mm, coverage coefficient are 2225.Then above-mentioned prepared Tynex fabric and PPS/PET union are formed two-layer compound fabric by way of heat bonding.Carry out conditioning under the conditions of the two-layer compound fabric being obtained is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of this two-layer compound fabric, and be shown in Table 1.This two-layer compound fabric is applied to Tynex fabric during mechanical moving element and is pasted on metal surface as rubbing surface, PPS/PET union as binding face.
Comparative example 2
All the politef monofilament that embrane method is obtained is split for irregular polygon using cross section through, weft yarn, the fiber number that this splits embrane method politef monofilament is 490dtex, weaved by rapier loom, the calicut that prepared warp count is 60 pieces/inch, weft count is 60 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 190 DEG C thermal finalization 2min, prepared thickness is that 1/1 plain weave that 0.30mm, coverage coefficient are 2656 splits embrane method politef woven monofilament；Warp, weft yarn are the PET long filament of 110dtex all using fineness, weaved by rapier loom, the fabric that prepared warp count is 86 pieces/inch, weft count is 86 pieces/inch, by the fabric being obtained carry out refine, washing, be dried at temperature is 120 DEG C 2min, at 200 DEG C thermal finalization 2.5min, prepared thickness is the PET plain cloth that 0.23mm, coverage coefficient are 1803.Then above-mentioned prepared politef woven monofilament and PET filament yarn fabric are formed two-layer compound fabric by way of sewing.Carry out conditioning under the conditions of the two-layer compound fabric being obtained is placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of this two-layer compound fabric, and be shown in Table 1.When this two-layer compound fabric is applied to mechanical moving element, splits embrane method politef woven monofilament and be pasted on metal surface as rubbing surface, PET filament yarn fabric as binding face.
Comparative example 3
Table warp/outer weft using cross section be circular, fineness be 440dtex, monofilament number be the PTFE long filament of 60, back warp/back weft adopts the PET long filament of fineness 110dtex, weaved by rapier loom, obtain end count be 120 pieces/inch, filling density be 120 pieces/inch of two-layer fabric.By this two-layer fabric carry out concise, washing, be dried, processed after thermal finalization, drying condition：2min is dried at 120 DEG C；Heat set conditions：Thermal finalization 2min at 210 DEG C.Carry out conditioning under the conditions of subsequently two-layer fabric being placed on 20 ± 2 DEG C of temperature, humidity 65 ± 4%, evaluate the characteristic of this two-layer fabric, and be shown in Table 1.When this two-layer fabric is applied to mechanical moving element, PTFE face is pasted on metal surface as rubbing surface, PET face as binding face.
Table 1
Claims (7)
1. a kind of two-layer compound fabric it is characterised in that：This compound fabric comprises fluorine element filament yarn fabric layer and other fiber fabric layers, the warp count of described fluorine element filament yarn fabric layer is 70～360 pieces/inch, the coverage coefficient of described fluorine element filament yarn fabric layer is 1500～2800, the center line average roughness of described fluorine element filament yarn fabric layer surface below 15 μm, the every 100m in surface of this compound fabric2Interior fault number is less than 30.
2. two-layer compound fabric according to claim 1 it is characterised in that：The fiber constituting other fabrics described is polyester fiber, any one or a few in Fypro, aromatic polyamide fibre, polyphenylene sulfide fibre, polyimide fiber, glass fibre.
3. two-layer compound fabric according to claim 1 it is characterised in that：The thickness of this compound fabric is 0.2～1.0mm.
4. two-layer compound fabric according to claim 1 it is characterised in that：The coefficient of sliding friction of this compound fabric is less than 0.10.
5. two-layer compound fabric according to claim 1 it is characterised in that：The wear-resisting time-consuming of this compound fabric is more than 100 hours.
6. the two-layer compound fabric described in a kind of claim 1 production method it is characterised in that：Comprise the steps：
（1）The preparation of fluorine element filament yarn fabric：All warping, weaving are passed through using the fluorine element long filament that cross section is circular through, weft yarn, prepared fabric, then by fabric carry out concise, washing, be dried at 100～120 DEG C 2～5min, at 170～210 DEG C thermal finalization 2～5min, prepared fluorine element filament yarn fabric；
（2）The preparation of other fabrics：Warp, weft yarn are all weaved for other fibers of 20～600dtex using fineness, prepared fabric, again by fabric carry out concise, washing, at 100～120 DEG C be dried 2～5min, at 170～210 DEG C thermal finalization 2～5min, prepared coverage coefficient is 1500～2800 other fibroplastic fabrics；
（3）The preparation of two-layer compound fabric：Above-mentioned prepared fluorine element filament yarn fabric is carried out Compound Machining with other fabrics by the method for sewing or heat bonding or ultrasonic bonds or adhesive bond, when being processed using adhesive bonding, carry out the pressurized treatments of 30～120min under 0.5～2Mpa pressure condition, finally obtain finished product.
7. application in mechanical moving element for the two-layer compound fabric described in a kind of claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510473642.8A CN106400251A (en) | 2015-08-05 | 2015-08-05 | Double-layer composite fabric and a production method and use thereof |
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| CN201510473642.8A CN106400251A (en) | 2015-08-05 | 2015-08-05 | Double-layer composite fabric and a production method and use thereof |
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| CN106400251A true CN106400251A (en) | 2017-02-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291240A (en) * | 2017-03-24 | 2019-09-27 | 东丽纤维研究所（中国）有限公司 | Self-lubricating webbing, broad fabrics and its tubular fabric obtained and purposes |
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2015
- 2015-08-05 CN CN201510473642.8A patent/CN106400251A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291240A (en) * | 2017-03-24 | 2019-09-27 | 东丽纤维研究所（中国）有限公司 | Self-lubricating webbing, broad fabrics and its tubular fabric obtained and purposes |
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Application publication date: 20170215 |