CN101050579A - Process for producing nylon 6 cycle tire rubber impregnation cord fabric - Google Patents
Process for producing nylon 6 cycle tire rubber impregnation cord fabric Download PDFInfo
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- CN101050579A CN101050579A CN200710068337.6A CN200710068337A CN101050579A CN 101050579 A CN101050579 A CN 101050579A CN 200710068337 A CN200710068337 A CN 200710068337A CN 101050579 A CN101050579 A CN 101050579A
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Abstract
The present invention relates to a production process of polyamide 6 wheel tyre rubberized cord fabric. Said production method includes the following steps: spinning raw material preparation, uniformly stirring and mixing raw materials by using stirring machine, screw extruding and spinning, adding finishing oil and winding, drafting, twisting, weaving, rubber-mixing, rubberizing and packaging.
Description
Technical field:
The present invention relates to the manufacture craft of the novel nylon 6 cycle tire rubber impregnation cord fabric of a kind of light weight, mainly be applicable to the framework material of rubber tyres such as making bicycle, electric motor car, motorcycle, rickshaw.
Background technology:
Present domestic rubber plant makes cycle tyre, electronic tire, cycle tyre, the framework material of manpower tire etc. all adopts polyamide fibre 6 dipped type cord fabrics, it is raw material that polyamide fibre 6 dipped type cord fabrics adopt caprolactam, by polymerization, the casting section, extraction, dry, spinning, drawing-off, twist thread, weave, impregnation, operations such as packing produce finished product, its nylon 6 cycle tire rubber impregnation cord fabric performance and index see Table 1, (dtex promptly divides Tekes to cord fabric thread leading indicator Grade A relative intensity in its cord fabric about 7.0CN/dtex as can be seen from Table 1, be used for the major name of calibration line density, down together), with 930dtex/l (/l represents sub-thread) is example, and ultimate strength 〉=67N just can reach national Grade A requirement.Therefore, improving the powerful relatively of polyamide fibre 6 cords fabric thread as far as possible, make and use that polyamide fibre 6 cords fabric thread of thin (line density is little) just can satisfy request of national standard, is to meet country about the general requirement of saving, environmental protection.
Table 1: the professional standard FZ/T55001-99 of the People's Republic of China (PRC)
Polyamide fibre 6 impregnation power tire cord fabrics
| Sequence number | Project | Unit | The nominal line density | |||||
| 800dtex | 930dtex | 1170dtex | 1400dtex | 1870dtex | ||||
| Grade A | Grade A | Grade A | Grade A | Grade A | ||||
| 0 | Relative intensity | cN/dtex | 7.2 | 7.2 | 7.2 | 7.0 | 6.8 | |
| 1 | Ultimate strength | The N/ root | ≥57.6 | ≥67 | ≥84 | ≥98 | ≥127 | |
| 2 | Decide the lotus percentage elongation | 19.6N | ％ | 7.5±1.0 | ||||
| 22.6N | 7.5±1.0 | |||||||
| 28N | 7.0±1.0 | |||||||
| 33.3N | 7.0±1.0 | |||||||
| 44N | 8.0±1.0 | |||||||
| 3 | Adhesion strength | N/cm | ≥45 | ≥49 | ≥53 | ≥64 | ≥78 | |
| 4 | Rubber absorption capacity | ％ | 4.2±1.0 | 4.2±1.0 | 4.2±1.0 | 4.2±1.0 | 4.2±1.0 | |
| 5 | Strength irregularity | ％ | ≤4.5 | ≤4.5 | ≤4.0 | ≤4.0 | ≤4.0 | |
| 6 | Uneven rate of elongation | ％ | ≤6.5 | ≤6.5 | ≤6.0 | ≤6.0 | ≤6.0 | |
| 7 | Percentage elongation | ％ | 20±2 | 20±2 | 20±2 | 20±2 | 20±2 | |
| 8 | Moisture content | ％ | ≤0.8 | ≤0.8 | ≤0.8 | ≤0.8 | ≤0.8 | |
| 9 | The twist | Sth. made by twisting/rice | 210±10 | 210±10 | 190±10 | 190±10 | 160±10 | |
| 10 | Diameter | mm | 0.26±0.03 | 0.32±0.03 | 0.36±0.03 | 0.43±0.03 | 0.50±0.03 | |
| 11 | Xeothermic contraction | ％ | ≤4.0 | ≤4.0 | ≤4.0 | ≤4.0 | ≤4.0 | |
Summary of the invention:
Technical problem to be solved by this invention is to overcome existing above-mentioned deficiency in the prior art, and provide a kind of powerful big relatively, spinning temperature is low, spinning speed is fast and the raising spinning quality, reduce production costs, the manufacture craft of the nylon 6 cycle tire rubber impregnation cord fabric of environmental protection and energy saving.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the manufacture craft of this nylon 6 cycle tire rubber impregnation cord fabric, it is characterized in that may further comprise the steps: spinning material is prepared, mixer mixes, extrusion spinning by screw press, oiling agent is reeled, drawing-off, twist thread, weave, impregnation, impregnation, packing, described spinning material comprises relative viscosity 〉=3.4, mean molecule quantity is the chinlon 6 section more than 23000, account for the heat stabilizer E of spinning material gross weight 0.8～1.8 ‰, and the age resistor that accounts for spinning material gross weight 0.8～1.5 ‰.
The mean molecule quantity 23500 ± 500 of chinlon 6 section of the present invention, 215 ℃ of relative viscosities 3.4～3.5, content of monomer≤1.8%, moisture content≤0.06%, fusing point, heat stabilizer E accounts for 1.2 ‰ of spinning material gross weight, and age resistor accounts for 0.8 ‰ of spinning material gross weight.
The present invention all meets the nylon 6 cycle tire rubber impregnation cord fabric that available less raw material under the prerequisite of industry standard is made same intensity in every technical indicator, perhaps under the line density same case, increased substantially the relative intensity and the ultimate strength of product, improved spinning quality, reduce production costs.
Description of drawings:
Fig. 1 is the process chart of the embodiment of the invention.
The specific embodiment:
Referring to Fig. 1, the manufacture craft of nylon 6 cycle tire rubber impregnation cord fabric of the present invention may further comprise the steps: spinning material is prepared, and mixer mixes, extrusion spinning by screw press, oiling agent is reeled, drawing-off, twist thread, weave, impregnation, impregnation, packing, wherein spinning material comprises relative viscosity 〉=3.4, mean molecule quantity is the high viscosity chinlon 6 section more than 23000, account for the heat stabilizer E of spinning material gross weight 0.8～1.8 ‰, and the age resistor that accounts for spinning material gross weight 0.8～1.5 ‰.
Spinning material among the present invention can adopt mean molecule quantity 23500 ± 500, chinlon 6 section, heat stabilizer E and age resistor that relative viscosity 3.4～3.5, content of monomer≤1.8%, moisture content≤0.06%, fusing point are 215 ℃, heat stabilizer E accounts for 1.2 ‰ of spinning material gross weight, and age resistor accounts for 0.8 ‰ of spinning material gross weight.
Mixer in the operation of the present invention mixes, drawing-off, twist thread, weave, impregnation, impregnation and the same prior art of packing, extrusion spinning by screw press, oiling agent are reeled needs to adopt technological parameter of the present invention to make, and reaches the effect that increases relative intensity or ultimate strength.
The nylon 6 cycle tire rubber impregnation cord fabric that manufacture craft of the present invention obtains by sub-thread or bifilar polyamide fibre 6 cords fabric thread as warp, interweave with arranging as parallel with 27.8dtex sub-thread Quality Pure Cotton Yarn Production and form, its gram weight per square meter wants light by 10～15% than same specification (table 1 industry standard index) nylon 6 cycle tire rubber impregnation cord fabric, its operating characteristic is the same with the same specification nylon 6 cycle tire rubber impregnation cord fabric, i.e. the product that the present invention makes is compared with the same specification traditional product will save spinning material 10～15%; Perhaps the product that makes of the present invention is compared relative intensity with the traditional product of same line density, ultimate strength improves more than 10%.Therefore, the line density structure of polyamide fibre 6 cords fabric thread that drafting process of the present invention obtains can adopt polyamide fibre 6 cords fabric thread of 700dtex, 800dtex, 1000dtex, 1200dtex and 1600dtex specification to replace polyamide fibre 6 cords fabric thread of original 800dtex, 930dtex, 1170dtex, 1400dtex and 1870dtex specification respectively, and their need to twist (twisting thread) operation through the road, back and form sub-thread or multiply polyamide fibre 6 cords fabric thread.The warp-wise density of the nylon 6 cycle tire rubber impregnation cord fabric that the present invention obtains is 50～160/10cm, and the broadwise Quality Pure Cotton Yarn Production is arranged as 8～12/10cm, and fabric width is 90～145cm.
Production equipment:
Production equipment adopts traditional polyamide fibre 6 cord fabric equipment, i.e. SKV112 cord fabric thread spinning machine, the heavy dawn drawing machine of VC432, R813, R814 twisting machine, G749-180 type flexible rapier cord fabric loom and FDZT-180 type cord fabric cement dipping machine.
Raw material:
Chinlon 6 section, mean molecule quantity 23500 ± 500,215 ℃ of relative viscosities 3.4～3.5, content of monomer≤1.8%, moisture content≤0.06%, fusing point.
Auxiliary agent:
1, high-purity heat stabilizer E is the low molecule aromatic amides compounds that makes active group, and white is to light yellow powdery thing, 140～146 ℃ of molten points.It is compatible with polyamide fibre 6 with the interlinkage amidatioon that heat stabilizer E has " passing through molecular recognition ", increase the heat endurance and the photostability of polyamide fibre 6, spinning temperature is reduced, because the thermoplasticity of spinning melt and wriggling property obtain changing, the chinlon 6 section spinnability is improved greatly, and the drawing-off performance improves greatly, and end breakage rate obviously reduces, spinning speed can improve, and the precursor brute force can improve.Heat stabilizer E accounts for spinning material gross weight 1.2 ‰ in the present embodiment.
2, age resistor (DMP), age resistor accounts for 0.8 ‰ of spinning material gross weight, is used for preventing that cord fabric thread is aging, and using method is with traditional technology.
3, finish:
The agent of polyamide fibre 6 spinning oil model: J808A industry silk oil, oil content 〉=95%, oil formula: oil: water=1.0: 4.5～1.0: 5.5.
Technological process of the present invention and major parameter:
Process of the present invention uses raw material chinlon 6 section relative viscosity bigger by 0.2～0.3 than tradition, spinning temperature is lower about 30 ℃ than traditional spinning temperature, spinning speed is than tradition fast 20%, spinning polyamide fibre line is powerful relatively than the big 1～1.5CN/dtex of tradition, sample is unified in technological process of the present invention and equipment simultaneous interpretation, emphasis of the present invention is at spinning process, and spinning technology parameter of the present invention is as follows:
| The twist (T/m) | 25±5 | 25±5 | |
| Sth. made by twisting to | Z | Z | |
| The wrapping wire number of turns | 4/4/5 | 4/4/5 | |
| Air-conditioning | The lateral blowing temperature (℃) | 19±2 | |
| Between coiling (℃) | 25±2 | ||
| Between drawing-off (℃) | 28±5 | ||
Referring to table 2, the 800dtex/l nylon 6 cycle tire rubber impregnation cord fabric (T that manufacture craft of the present invention obtains
1100137) physical property and industry standard 930dtex/l impregnation polyamide fibre 6 cord fabric (A
1100137) performance indications (table 1) relatively, the every performance indications of 800dtex/l nylon 6 cycle tire rubber impregnation cord fabric that obtain of the present invention meet the standard-required of 930dtex/l impregnation polyamide fibre 6 cord fabrics of standard FZ/T55001-99 defined as can be seen from comparison, promptly can replace 930dtex/l impregnation polyamide fibre 6 cord fabrics of a high retaining specification with the 800dtex/l nylon 6 cycle tire rubber impregnation cord fabric that the present invention obtains.
Table 2: before improving and improvement back ultimate strength contrast
| Kind | Grade A ultimate strength standard | Measured data | Weight per square meter | Remarks |
| Improve back T 1100137 | 57.6N | 68N | 89.2g/m 2 | |
| A before improving 1100137 | 67N | 68N | 104.1g/m 2 |
The main points of the embodiment of the invention comprise:
One, raw material:
This patent embodiment uses spinning material to be relative viscosity 〉=3.4, the high viscosity chinlon 6 section of mean molecule quantity more than 23000, (the spinning material relative viscosity of conventional usefulness is between 3.1～3.2, mean molecule quantity 20000～21000) the section relative viscosity is high more, and cord is powerful relatively just high more after the spinning drawing-off, but the relative viscosity height, the section fluidity of molten is relatively poor in spinning process, spinnability is also relatively poor, needs to improve spinning temperature, changes fluidity of molten.But after improving constantly spinning temperature, section can cause viscosity to reduce under the thermally equilibrated effect of spinning process, content of monomer increases, cord fabric thread is powerful relatively to be reduced thereby influence, solution of the present invention is to make section add an amount of heat stabilizer E in spinning process to reduce spinning temperature, change fluidity of molten, improve spinning speed.
Two, the use of heat stabilizer:
Heat stabilizer E use amount accounts for 0.8 of spinning material gross weight～1.8 ‰, stirs with mixer with section in accordance with regulations when spinning is reinforced, carries out the temperature adjustment with spinning screw again.Because heat stabilizer E has " passing through molecular recognition " or the interlinkage amidatioon is compatible with polyamide fibre, the heat endurance and the photostability that increase polyamide fibre reduce spinning temperature.
Table 3: the spinning temperature contrast when adding heat stabilizer E and not adding heat stabilizer E
As can be seen from Table 3, use after the heat stabilizer E, spinning screw is respectively distinguished temperature can fall 30～40 ℃, and spinning speed can increase by 40～100m/min.
Problem below the utilization of heat stabilizer E in spinning process can solve:
1, can use the chinlon 6 section of 3.4 above relative viscosities to carry out normal spinning, reduce spinning temperature, change the spinning melt flowability, reduce separating out of escaping gas in the spinning process, accomplish the energy-conserving and environment-protective requirement.
2, because reduced the temperature of spinning, fairly simple to air-conditioning cold flow use and air-conditioning requirement in the cooling forming process in the spinning, control easily.
3, can improve spinning speed increase unit platform output reaches more than 20%.
4, the generation of using behind the heat stabilizer E in back road drawing-off, twisting thread and weave cotton cloth, can reduce lousiness and fault silk in the impregnation process, but spinnability drawing-off performance increase, thereby improve the top-quality product rate of finished product.
The actual utilization of the present invention uses enterprise to reduce production costs to polyamide fibre 6 dipped type cord fabric productions, plays a positive role, and environmental protection, energy conservation are also had positive effect.
Embodiment 1:
Polyamide fibre 6 cords fabric thread replacement line density with line density 800dtex/l is polyamide fibre 6 cords fabric thread of 930dtex/l, and the cord fabric thread arranging density is 100/10cm, and 10/10cm of weft yarn, the cloth width of cloth are the T of 137cm
1100137 polyamide fibres, 6 dipped type cord fabrics replace the A of former specification 930dtex/l
1100137 polyamide fibres, 6 dipped type cord fabrics, its gram square weight is by A
193 gram/m of 100137 polyamide fibres, 6 dipped type cord fabrics
2Drop to T
180 gram/m of 100137 polyamide fibres, 6 dipped type cord fabrics
2, reduced by 13.98%, and technical indicators such as ultimate strength all meet industry standard.
Embodiment 2:
Polyamide fibre 6 cords fabric thread that replace 1400dtex/l with line density 1200dtex/l polyamide fibre 6 cords fabric thread, its cord fabric thread arranging density is 90/10cm, 10/10cm of weft count, the cloth width of cloth is B90133 polyamide fibre 6 dipped type cord fabrics that V90133 polyamide fibre 6 dipped type cord fabrics of 133cm substitute original 1400dtex/l, and its gram square weight is by 126 gram/m of B90133 polyamide fibre 6 dipped type cord fabrics
2Drop to 108 gram/m of V90133 polyamide fibre 6 dipped type cord fabrics
2, gram square weight has reduced by 14.3%.
Embodiment 3:
With embodiment 1, the T that makes with the present invention
1100137 polyamide fibres, 6 dipped type cord fabrics are compared with polyamide fibre 6 dipped type cord fabrics of existing same line density, Grade A ultimate strength (referring to table 2) has improved 18% under every Gram Mass same case, be that product of the present invention has increased substantially relative intensity and the ultimate strength under the line density same case, thereby increased substantially product performance index.
Claims (2)
1, a kind of manufacture craft of nylon 6 cycle tire rubber impregnation cord fabric is characterized in that: may further comprise the steps: spinning material is prepared, and mixer mixes, extrusion spinning by screw press, oiling agent is reeled, drawing-off, twist thread, weave, impregnation, impregnation, packing, described spinning material comprises relative viscosity 〉=3.4, mean molecule quantity is the chinlon 6 section more than 23000, account for the heat stabilizer E of spinning material gross weight 0.8～1.8 ‰, and the age resistor that accounts for spinning material gross weight 0.8～1.5 ‰.
2, the manufacture craft of nylon 6 cycle tire rubber impregnation cord fabric according to claim 1, it is characterized in that: the mean molecule quantity 23500 ± 500 of described chinlon 6 section, 215 ℃ of relative viscosities 3.4～3.5, content of monomer≤1.8%, moisture content≤0.06%, fusing point, heat stabilizer E accounts for 1.2 ‰ of spinning material gross weight, and age resistor accounts for 0.8 ‰ of spinning material gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710068337.6A CN101050579A (en) | 2007-04-26 | 2007-04-26 | Process for producing nylon 6 cycle tire rubber impregnation cord fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710068337.6A CN101050579A (en) | 2007-04-26 | 2007-04-26 | Process for producing nylon 6 cycle tire rubber impregnation cord fabric |
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| CN101050579A true CN101050579A (en) | 2007-10-10 |
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|---|---|---|---|
| CN200710068337.6A Pending CN101050579A (en) | 2007-04-26 | 2007-04-26 | Process for producing nylon 6 cycle tire rubber impregnation cord fabric |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361984A (en) * | 2012-04-10 | 2013-10-23 | 江阴市强力化纤有限公司 | Chinlon cord fabrics with high rubber coverage rate |
| CN103498231A (en) * | 2013-09-29 | 2014-01-08 | 亚东工业（苏州）有限公司 | Manufacturing method for aramid fiber/chinlon composite cord for aircraft tires |
| CN106222785A (en) * | 2016-08-25 | 2016-12-14 | 江阴市强力化纤有限公司 | A kind of ocean hawser silk |
| CN109137212A (en) * | 2018-07-30 | 2019-01-04 | 江苏百利达股份有限公司 | A kind of production line and method of chinlon 6 dipped tire core fabric |
| CN115161796A (en) * | 2022-07-05 | 2022-10-11 | 江阴市沙江纺织科技有限公司 | High-wear-resistance impact-resistance polyamide cord fabric |
| CN115489236A (en) * | 2022-10-14 | 2022-12-20 | 青岛双星轮胎工业有限公司 | Reinforcing part for full explosion-proof tire and full explosion-proof tire |
-
2007
- 2007-04-26 CN CN200710068337.6A patent/CN101050579A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361984A (en) * | 2012-04-10 | 2013-10-23 | 江阴市强力化纤有限公司 | Chinlon cord fabrics with high rubber coverage rate |
| CN103498231A (en) * | 2013-09-29 | 2014-01-08 | 亚东工业（苏州）有限公司 | Manufacturing method for aramid fiber/chinlon composite cord for aircraft tires |
| CN103498231B (en) * | 2013-09-29 | 2016-01-06 | 亚东工业（苏州）有限公司 | A kind of manufacture method of aircraft tyre Kevlar/nylon composite cord |
| CN106222785A (en) * | 2016-08-25 | 2016-12-14 | 江阴市强力化纤有限公司 | A kind of ocean hawser silk |
| CN109137212A (en) * | 2018-07-30 | 2019-01-04 | 江苏百利达股份有限公司 | A kind of production line and method of chinlon 6 dipped tire core fabric |
| CN115161796A (en) * | 2022-07-05 | 2022-10-11 | 江阴市沙江纺织科技有限公司 | High-wear-resistance impact-resistance polyamide cord fabric |
| CN115489236A (en) * | 2022-10-14 | 2022-12-20 | 青岛双星轮胎工业有限公司 | Reinforcing part for full explosion-proof tire and full explosion-proof tire |
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Open date: 20071010 |