CN115726123A - Hot-pressing treatment equipment for polyethylene woven cloth and application thereof - Google Patents
Hot-pressing treatment equipment for polyethylene woven cloth and application thereof Download PDFInfo
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- CN115726123A CN115726123A CN202211623557.1A CN202211623557A CN115726123A CN 115726123 A CN115726123 A CN 115726123A CN 202211623557 A CN202211623557 A CN 202211623557A CN 115726123 A CN115726123 A CN 115726123A
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- 239000004744 fabric Substances 0.000 title claims abstract description 155
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 96
- -1 polyethylene Polymers 0.000 title claims abstract description 95
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 95
- 238000007731 hot pressing Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000010030 laminating Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003672 processing method Methods 0.000 claims abstract description 12
- 238000009941 weaving Methods 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 239000002759 woven fabric Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 12
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 4
- 238000005491 wire drawing Methods 0.000 abstract description 4
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000010345 tape casting Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000013329 compounding Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Abstract
The invention belongs to the technical field of high polymer material engineering, and particularly relates to hot-pressing treatment equipment for polyethylene woven cloth, a processing system containing the hot-pressing treatment equipment and a processing method for polyethylene laminated cloth. The hot-pressing treatment equipment for the polyethylene woven cloth comprises a first pressing roller group, a second pressing roller group, a third pressing roller group, a winding roller and a plurality of guide rollers from upstream to downstream in sequence according to the conveying direction of the polyethylene woven cloth. Meanwhile, the invention also provides a processing technology of the polyethylene laminating cloth, which comprises the procedures of tape casting wire drawing, warping, weaving, hot pressing, laminating, bundling, finished product manufacturing and the like, the obtained product solves the problems of hard texture and easy water seepage of the traditional polyethylene cloth, and has the characteristics of high strength, good softness, good friction resistance, good mildew-proof and antibacterial effects and good seepage-proofing effects, particularly good seepage-proofing performance at the abutted seams and long service life.
Description
Technical Field
The invention belongs to the technical field of high polymer material engineering, and particularly relates to hot-pressing treatment equipment for polyethylene woven cloth, a processing system containing the hot-pressing treatment equipment and a processing method for polyethylene laminated cloth.
Background
In traditional aquaculture, farmers mostly adopt anti-seepage cloth made of polyester cloth and PVC in a compounding way for aquaculture, and because PVC can be added with a large amount of additives such as plasticizer, heat stabilizer and the like in the processing process, most of the additives have biological toxicity, and the additives are separated out to pollute water in the using process, thereby affecting the quality of aquatic products. With the continuous development of the breeding industry, the requirement on the environmental protection performance of the breeding cloth is higher. Therefore, there is a need for an environmentally friendly product that can replace its use function.
The polyethylene material is an environment-friendly material, is nontoxic and harmless, can be recycled, and can be applied to various fields of daily chemicals, covering, transportation and the like. The traditional polyethylene cloth is hard in texture, is difficult to bear water pressure with high strength, and is easy to have water seepage at the splicing part, so that the application of the traditional polyethylene cloth in the fields of aquaculture and the like is limited. In order to overcome the defects of the traditional polyethylene cloth and meet the requirement of the polyethylene cloth on cultivation, the process and the formula of the polyethylene cloth need to be optimized urgently, and the cultivation cloth made of the polyethylene material is developed.
Disclosure of Invention
The invention aims to provide hot-pressing treatment equipment for polyethylene woven cloth.
The invention further aims to provide a processing system of the polyethylene laminated cloth containing the hot-pressing treatment equipment.
The invention further aims to provide a processing method of the polyethylene laminating cloth.
The hot-pressing treatment equipment for the polyethylene woven cloth according to the embodiment of the invention comprises a first pressing roller group, a second pressing roller group and a third pressing roller group from upstream to downstream in sequence according to the conveying direction of the polyethylene woven cloth, wherein,
the first compression roller group comprises a first rubber roller and a first steel roller, the first rubber roller is arranged below the first steel roller, and the first rubber roller is a compression roller to extrude moisture in the polyethylene woven cloth;
the second press roller group comprises a second rubber roller and a second steel roller, the second rubber roller is arranged below the second steel roller, the second rubber roller is a press roller, and the second steel roller is a heating roller so as to heat and press the polyethylene woven fabric;
the third press roller group comprises a third rubber roller and a third steel roller, the third rubber roller is arranged below the third steel roller, the third rubber roller is a press roller, and the third steel roller is a heating roller so as to carry out secondary heating and pressurizing treatment on the polyethylene woven fabric.
When the polyethylene woven cloth passes through the middle of a first rubber roller and a first steel roller of a first press roller group, the polyethylene woven cloth (woven cloth) is pressurized through the rubber rollers, certain pressure is applied to the polyethylene woven cloth to discharge redundant moisture in the woven cloth, and the moisture content of the woven cloth is reduced; the second press roll group and the third press roll group perform heating and pressurizing treatment on the woven cloth twice continuously.
Therefore, the water content of the woven cloth is greatly reduced, the flatness and the dimensional stability of the cloth surface of the woven cloth are improved through twice heat treatment, the deformation condition caused by retraction in the use process is reduced, and the hydrostatic pressure resistance of the woven cloth as base cloth is also improved.
According to the hot-pressing treatment equipment for the polyethylene woven cloth, the first pressing roller group and the second pressing roller group are provided with the first guide roller group for changing the orientation of the polyethylene woven cloth when the polyethylene woven cloth passes through the second pressing roller group;
and the second press roller group and the third press roller group are provided with a second guide wheel group for changing the orientation of the polyethylene woven cloth passing through the third press roller group for the second time.
Taking the conveying direction from left to right as an example shown in the attached figure 1, defining one surface of the polyethylene woven fabric facing to the upward direction as a front surface, and one surface of the polyethylene woven fabric facing to the downward direction as a back surface, after passing through the first press roller group, the front surface of the polyethylene woven fabric faces upward, after passing through the first guide wheel and adjusting, the polyethylene woven fabric changes the orientation, and the back surface faces upward, and the shape is maintained to pass through the second press roller group; after leaving the second press roller group, the polyethylene woven cloth is guided by the second guide wheel to change the orientation again, namely the front side of the polyethylene woven cloth faces upwards.
Therefore, the invention changes the orientation of the polyethylene woven cloth through the guide wheel, realizes the heating and pressurizing treatment of the front surface and the back surface of the polyethylene woven cloth, further improves the flatness and the dimensional stability of the surface of the polyethylene woven cloth, reduces the deformation condition caused by retraction in the use process, and also improves the hydrostatic pressure resistance when the polyethylene woven cloth is used as base cloth.
The invention adopts three groups of press rolls to finally realize the effects of reducing the water content of the base cloth and hot pressing the two sides, the hot pressing roll consists of a hot steel roll and a rubber roll, the rubber roll has certain buffer effect on the pressure, the temperature reduction and the buffer can be carried out on the base cloth after the hot pressing by dividing into two hot pressing, and the hardening and the deformation of the base cloth caused by the direct hot pressing of the double steel rolls are avoided.
According to the hot-pressing treatment equipment for the polyethylene woven fabric, a winding roller is further arranged at the downstream of the third press roller group, namely a coil material of the woven fabric is obtained through winding by a guide roller. Meanwhile, when hot pressing is performed for the first time, the base cloth is changed in surface through the first guide wheel, and the subsequent rolling is facilitated.
According to the hot-pressing treatment equipment for the polyethylene woven cloth, the polyethylene woven cloth is a polyethylene film.
According to the processing system of the polyethylene laminated cloth, the processing comprises the hot-pressing processing equipment.
Specifically, the processing system sequentially comprises the following devices: extrusion wire drawing unit, warping unit, water loom, hot pressing equipment, drench membrane unit.
The processing method of the polyethylene laminated cloth according to the specific embodiment of the invention comprises the following steps:
(1) Extruding the raw materials by an extruder, casting into a film, cooling, cutting into filaments, and then carrying out traction, stretching and shaping to obtain flat filaments;
(2) Warping the flat yarns obtained in the step (1) by using a warping machine;
(3) Weaving the flat yarns warped in the step (2) into woven cloth;
(4) Carrying out hot-pressing treatment on the woven cloth by adopting the hot-pressing treatment equipment;
(5) And (4) laminating the woven cloth after hot pressing to obtain the polyethylene laminated cloth.
According to the invention, the hot-pressing treatment step is arranged between the step (3) and the step (5), and the hot-pressed polyethylene woven cloth has low water content and good flatness, so that the clearance between the PE coated layer and the polyethylene woven cloth is reduced, the compounding fastness is higher, and the waterproof performance is more excellent.
According to the processing method of the polyethylene laminated cloth, in the step (4), after the woven cloth passes through the first press roller group, the water content of the woven cloth is reduced to 2-3%;
when the woven cloth passes through the second press roller group, the hot pressing temperature is 40-70 ℃, and the pressure is 5-15Mpa;
when the woven cloth passes through the third press roller group, the hot pressing temperature is 50-80 ℃, and the pressure is 10-30Mpa.
In order to avoid the influence on the hot pressing effect caused by heat loss caused by the heated volatilization of moisture in the base cloth in the hot pressing process, the first group of press roller sets are arranged before the hot pressing step, the first group of press roller sets provide pressure of 5-15Mpa, and the water content of the base cloth is reduced to 2-3% from 9-10%.
After the first hot pressing, the base cloth slightly shrinks compared with the prior base cloth, the cloth surface is more compact, and the second hot pressing needs to increase the pressure and the temperature to further strengthen the treatment effect. After the subsequent two times of hot pressing, the water content in the base cloth is further reduced to 1-1.5%, and the size stability of the base cloth is better.
Meanwhile, the water content of the polyethylene base cloth is controlled to be 1-1.5%, the problem that the high water content affects the compounding of the laminating layer and the base cloth can be effectively avoided, the compounding fastness is improved, the quality of finished cloth is affected due to the high water content of the base cloth, and if the gap is large, the waterproof performance is poor, and the low-temperature resistance is also poor after the water content is contained.
According to the processing method of the polyethylene laminated cloth, after the step (5), the obtained laminated cloth is spliced by adopting a heat sealing process, wherein the heat splicing temperature is 350-400 ℃.
The invention adopts a heat sealing process in the finished product manufacturing procedure, controls the hot splicing temperature to be 350-400 ℃, has high composite fastness, greatly improves the splicing fastness and the water seepage resistance of the splicing seam compared with the traditional laminating cloth, and mainly shows that: the heat-sealing edge joint peeling strength at the edge joint is high, compared with the traditional laminating cloth, the peeling strength at the edge joint is improved by more than 2 times, and the edge joint water pressure is improved by more than 30% compared with the traditional laminating cloth; the water seepage resistance of the product is greatly improved, the water seepage phenomenon of the cloth cover is reduced, and the phenomena of surface water seepage and water seepage at the abutted seams cannot occur after the product is placed for a long time when the product is used outdoors.
According to the processing method of the polyethylene laminated cloth provided by the embodiment of the invention, in the step (5), the woven cloth is subjected to double-sided lamination in a single-layer or multi-layer co-extrusion mode by using an extruder.
The invention has the beneficial effects that:
the invention provides hot-pressing equipment for polyethylene woven cloth, which is characterized in that the polyethylene woven cloth is subjected to hot-pressing treatment by adopting different temperature and pressure through a specific combined roller process, so that the surface smoothness, the dimensional stability and the flatness of the polyethylene woven cloth are obviously improved.
The invention provides a process for manufacturing polyethylene laminated cloth, which is prepared from the raw materials through the procedures of tape casting wire drawing, warping, weaving, hot pressing, laminating, bundling, finished product manufacturing and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the autoclave apparatus of the present invention; wherein, 1-a first steel roll; 2-a first rubber roller; 3-a second steel roll; 4-a second rubber roller; 5-a third steel roll; 6-a third rubber roller; 7-a wind-up roll; 8-a first guide wheel set; 9-second guide wheel group.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
It should be noted that, in the embodiment of the present invention, all the directional indicators (such as upper, lower, left, right, front, and rear … …) are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a device or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such device or system.
Taking the left-to-right conveying direction shown in fig. 1 as an example, the side of the woven fabric oriented in the "up" direction is defined as the front side, and the side of the woven fabric oriented in the "down" direction is defined as the back side.
Example 1
According to the conveying direction of the polyethylene woven cloth, the hot-pressing treatment equipment comprises a first press roller group, a second press roller group and a third press roller group from upstream to downstream in sequence, each press roller group comprises a steel roller and a rubber roller which are arranged up and down, and the polyethylene woven cloth passes through the middle of the steel roller and the rubber roller.
The first compression roller group comprises a first rubber roller 2 and a first steel roller 1, the first rubber roller 1 is arranged below the first steel roller 2, and the first rubber roller 2 is a pressurizing roller to extrude moisture in the polyethylene woven cloth;
the second press roller group comprises a second rubber roller 4 and a second steel roller 3, the second rubber roller 4 is arranged below the second steel roller 3, the second rubber roller 4 is a press roller, and the second steel roller 3 is a heating roller so as to heat and press the polyethylene woven fabric;
the third press roller group comprises a third rubber roller 6 and a third steel roller 5, the third rubber roller 6 is arranged below the third steel roller 5, the third rubber roller 6 is a press roller, and the third steel roller 5 is a heating roller so as to carry out secondary heating and pressurizing treatment on the polyethylene woven fabric.
The hot-pressing treatment equipment carries out continuous hot-pressing treatment on the polyethylene woven cloth twice through the second compression roller group and the third compression roller group, and the orientation of the polyethylene woven cloth can be unchanged, namely the front side of the polyethylene woven cloth is always kept upward.
Preferably, in order to improve the flatness of the cloth surface and the dimensional stability of the base cloth and reduce the deformation caused by retraction in the use process, two sets of guide wheels, namely the first guide wheel set 8 and the second guide wheel set 9, are additionally arranged on the hot-pressing treatment equipment in the embodiment. The first pressing roller group and the second pressing roller group are provided with a first guide wheel group 8 for changing the orientation of the polyethylene woven cloth when passing through the second pressing roller group; and the second press roller group and the third press roller group are provided with a second guide wheel group 9 for changing the orientation of the polyethylene woven cloth passing through the third press roller group for the second time. Therefore, the front and the back of the polyethylene woven cloth can be respectively subjected to hot pressing treatment.
Meanwhile, in order to facilitate the subsequent process flow, a winding roller 7 is further arranged at the downstream of the third press roller group so as to wind the polyethylene woven cloth.
The embodiment also provides a processing system of the polyethylene laminated cloth, and the processing system comprises the hot-pressing treatment equipment.
Specifically, the processing system sequentially comprises the following devices: extrusion wire drawing unit, warping unit, water loom, hot pressing equipment, drench membrane unit.
Example 2
The processing method of the polyethylene laminating cloth comprises the following steps:
(1) Extruding the raw materials by an extruder at the extrusion temperature of 250-270 ℃, casting into a film, cooling, cutting into filaments, and then carrying out traction, stretching and shaping to obtain flat filaments;
(2) Warping the flat yarns obtained in the step (1) by using a warping machine;
(3) Weaving the flat yarns warped in the step (2) into woven cloth;
(4) Carrying out hot-pressing treatment on the woven cloth by using hot-pressing treatment equipment;
(5) Laminating the woven cloth after hot pressing at the laminating temperature of 270-290 ℃ to obtain polyethylene laminated cloth;
(6) Hot splicing is carried out at the temperature of 350-400 ℃.
Wherein the hot-pressing equipment used in the step (4) is the hot-pressing equipment mentioned in the embodiment 1, wherein the water content of the woven cloth is reduced to 2% after the woven cloth passes through the first press roller group of the hot-pressing equipment;
when the woven cloth passes through the second press roller group, the hot pressing temperature is 40 ℃, and the pressure is 5Mpa;
when the woven cloth passes through the third press roller group, the hot pressing temperature is 50 ℃, and the pressure is 10Mpa.
In the film laminating process, the raw material of the film laminating layer is formed by compounding polyethylene and various additives, and the processed polyethylene base cloth is subjected to double-sided film laminating by adopting a single-layer or multi-layer co-extrusion mode of an extruder.
For example, the laminating layer enables the base cloth to have an initial mildew-proof antibacterial effect and a long-term mildew-proof antibacterial effect through the compound use of the mildew-proof antibacterial auxiliary agent. The cloth cover after the film is sprayed is soft in texture, and has excellent use performance and mildew-proof and antibacterial effects. The mildew-proof antibacterial anti-seepage cloth, the traditional drench membrane cloth and a water tank made of PVC cloth and having the same size are respectively placed outdoors, water with the same water level is added, and after one month observation, the surface cleanliness degree and the algae attachment condition of the mildew-proof antibacterial anti-seepage cloth are superior to those of the traditional drench membrane cloth and the PVC cloth.
Example 3
In the step (4), after the woven cloth passes through a first compression roller set of the hot-pressing treatment equipment, the water content of the woven cloth is reduced to 2%;
when the woven cloth passes through the second press roller group, the hot pressing temperature is 55 ℃, and the pressure is 10Mpa;
when the woven cloth passes through the third press roller group, the hot pressing temperature is 65 ℃, and the pressure is 20Mpa.
Other process parameters were the same as in example 2.
Example 4
In the step (4), after the woven cloth passes through a first compression roller set of the hot-pressing treatment equipment, the water content of the woven cloth is reduced to 3%;
when the woven cloth passes through the second press roller group, the hot pressing temperature is 70 ℃, and the pressure is 15Mpa;
when the woven cloth passes through the third press roller group, the hot pressing temperature is 80 ℃, and the pressure is 30Mpa.
Other process parameters were the same as in example 2.
Experimental data
Experimental example: the polyethylene laminating cloth obtained in the embodiment 2 of the invention;
comparative example: in the embodiment 2 of the invention, the polyethylene laminated cloth obtained in the step (4) is omitted.
Wear resistance: the test of the experimental example and the comparative example is carried out by adopting a Taber abrasion tester (test conditions are 9.8N and CS 10 grinding wheel), and the finished products are 350g/m 2 Number of revolutions of the foundation cloth:
comparative example: 500 turns;
experimental example: and 2000 revolutions.
Dimensional stability: the remaining dimensions were measured by placing a 10cm by 10cm finished cloth in an oven at 100 ℃ for 2h, with the following results:
comparative example: the warp-wise retraction rate is 7-8%,
experimental example: the warp direction retraction rate is 4-5%.
The hydrostatic pressure of the base cloth leaking in the center of the product: hydrostatic pressure was applied to the centers of the two fabrics of the examples and comparative examples after removing the same size of the laminated layer (1 cm square), and the water pressure at which water penetration started at the edges of the comparative examples and comparative examples, which were 1000 to 2000mm H 2 O (9.8-19.6 kpa) starts to seep water, and the experimental example is 4000-5000mm H 2 O (39.2-49 Kpa) begins to permeate water.
And the edge joint peel strength: comparative example: the seam peel strength is 10-20N, and the experimental example: the peeling strength of the abutted seams is 30-40N.
Splicing and hydrostatic pressure: comparative example: 15000mm H 2 Around O (147 KPa), experimental example: greater than 20000mm H 2 O(196KPa)。
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The hot-pressing treatment equipment for the polyethylene woven cloth is characterized by comprising a first press roller group, a second press roller group and a third press roller group from upstream to downstream in sequence according to the conveying direction of the polyethylene woven cloth,
the first compression roller group comprises a first rubber roller and a first steel roller, the first rubber roller is arranged below the first steel roller, and the first rubber roller is a compression roller to extrude moisture in the polyethylene woven cloth;
the second press roller group comprises a second rubber roller and a second steel roller, the second rubber roller is arranged below the second steel roller, the second rubber roller is a press roller, and the second steel roller is a heating roller so as to heat and press the polyethylene woven fabric;
the third press roller group comprises a third rubber roller and a third steel roller, the third rubber roller is arranged below the third steel roller, the third rubber roller is a press roller, and the third steel roller is a heating roller to carry out secondary heating and pressurizing treatment on the polyethylene woven fabric.
2. The apparatus according to claim 1, wherein the first nip roller group and the second nip roller group are provided with a first guide roller group for changing an orientation of the polyethylene woven fabric passing through the second nip roller group;
and the second press roller group and the third press roller group are provided with a second guide wheel group for changing the orientation of the polyethylene woven cloth passing through the third press roller group again.
3. The autoclave apparatus according to claim 1, wherein a wind-up roll is further provided downstream of the third press-roll group.
4. A processing system of polyethylene laminated cloth, which is characterized by comprising the hot-pressing treatment equipment of the polyethylene woven cloth according to claim 1.
5. The processing method of the polyethylene laminating cloth is characterized by comprising the following steps:
(1) Extruding the raw materials by an extruder, casting the raw materials into a film, cooling the film, cutting the film into filaments, and then carrying out traction, stretching and shaping to obtain flat filaments;
(2) Warping the flat yarns obtained in the step (1) by using a warping machine;
(3) Weaving the flat yarns warped in the step (2) into polyethylene woven cloth;
(4) Carrying out hot-pressing treatment on the polyethylene woven cloth by using the hot-pressing treatment equipment as claimed in claim 1;
(5) And (4) laminating the hot-pressed polyethylene woven cloth to obtain the polyethylene laminated cloth.
6. The processing method of the polyethylene laminating cloth according to claim 5, wherein in the step (4), after the woven cloth passes through the first compression roller set, the water content of the woven cloth is reduced to 2% -3%;
when the woven cloth passes through the second press roller group, the hot pressing temperature is 40-70 ℃, and the pressure is 5-15Mpa;
when the woven cloth passes through the third press roller group, the hot pressing temperature is 50-80 ℃, and the pressure is 10-30Mpa.
7. The processing method of the polyethylene laminated cloth according to claim 5, wherein after the step (5), the obtained laminated cloth is spliced by adopting a heat sealing process.
8. The processing method of polyethylene laminated cloth according to claim 5, wherein in the step (5), the woven cloth is subjected to double-sided lamination by adopting a single-layer or multi-layer co-extrusion manner of an extruder.
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| CN202211623557.1A CN115726123A (en) | 2022-12-16 | 2022-12-16 | Hot-pressing treatment equipment for polyethylene woven cloth and application thereof |
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| CN202211623557.1A CN115726123A (en) | 2022-12-16 | 2022-12-16 | Hot-pressing treatment equipment for polyethylene woven cloth and application thereof |
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| CN202213278U (en) * | 2011-09-16 | 2012-05-09 | 湖北富狮材料科技股份有限公司 | Fixed length stretching multifunctional compound machine |
| CN106273527A (en) * | 2016-09-06 | 2017-01-04 | 安徽开润股份有限公司 | A kind of production method of the high intensity hot-forming composite of film woven cloth |
| CN109295640A (en) * | 2018-09-29 | 2019-02-01 | 句容佳运针纺织有限公司 | A kind of textile drying and dewatering device |
| CN111560776A (en) * | 2020-04-09 | 2020-08-21 | 广州新文塑料有限公司 | Polyolefin woven laminated cloth and preparation method thereof |
| CN215551703U (en) * | 2021-01-04 | 2022-01-18 | 江苏神鹤科技发展有限公司 | Novel multi-layer laminating machine without fiber cloth |
| CN113320268A (en) * | 2021-06-11 | 2021-08-31 | 江阴昶森无纺科技有限公司 | Processing equipment and using method of non-woven fabric |
| CN114714746A (en) * | 2022-05-11 | 2022-07-08 | 郑州中远防务材料有限公司 | Preparation system and method of double-layer unidirectional fabric and double-layer unidirectional fabric prepared by preparation system |
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