CN113151956B - Production method of polyamide monofilament filter cloth with stable size - Google Patents
Production method of polyamide monofilament filter cloth with stable size Download PDFInfo
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- CN113151956B CN113151956B CN202011275255.0A CN202011275255A CN113151956B CN 113151956 B CN113151956 B CN 113151956B CN 202011275255 A CN202011275255 A CN 202011275255A CN 113151956 B CN113151956 B CN 113151956B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0613—Woven
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Fiber Materials (AREA)
- Filtering Materials (AREA)
Abstract
The invention provides a production method of a nylon monofilament filter cloth with stable size. The production method of the nylon monofilament filter cloth with stable size comprises the following steps: s1: the method comprises the steps of taking a nylon monofilament, warping the nylon monofilament to ensure that the warp tension is uniform, and weaving by sequentially adopting satin weave, drafting, reed drawing and loom weaving. The production method of the nylon monofilament filter cloth with stable size reduces the internal stress generated in the weaving process, the yarns are pressed into a flat shape from an oval shape, the interweaving pores among the yarns and the gaps among the fibers are reduced, the surface of the filter cloth is flat and compact, and a proper amount of water can play a role similar to a plasticizer to plasticize the nylon fibers, so that the hydrogen bonding force on the surface of the nylon fibers is weakened, the strength is high, the wear resistance is good, and the service life is long; the pore tight filtration has the advantages of high efficiency, small blockage, easy stripping, difficult material leakage and the like, and is suitable for different high-temperature and strong-alkaline working conditions such as coal washing, mine and sewage treatment.
Description
Technical Field
The invention relates to the field of nylon monofilament filter cloth, in particular to a production method of nylon monofilament filter cloth with stable size.
Background
With the improvement of the living standard of people, the national requirements on environmental protection are more and more emphasized, the whole filtering market is rapidly developing, and the application of the fiber product filtering material in pollution control and environmental management is more and more extensive. The filter cloth material is the heart of the filtering and separating equipment and is an important component for determining the separating effect. The filter cloth made of terylene, polypropylene, chinlon, vinylon, cotton and the like is widely used in the industries of pharmacy, chemical industry, dye, steel, construction, sewage, chemical industry, ceramics, cement, coal washing, mine and the like. The chinlon filter cloth has good wear resistance and high breaking strength, and is widely applied to industries of coal washing, mines, sewage treatment and the like.
However, the nylon material is greatly influenced by seasonal weather or environmental temperature and humidity, particularly in the rainy season in the south, the relative humidity in the air is high and even can reach saturation, after the nylon filter cloth is wetted and absorbs moisture, the nylon filter cloth can be transversely and longitudinally stretched and the elongation is increased along with the rise of the humidity, meanwhile, the filter cloth is hard in hand feeling and wrinkled on the surface, the size of the nylon filter cloth is unstable, so that a series of problems of wrinkling of a filter cloth product, inaccurate overprinting of a filter cloth filter plate, bag making dislocation and the like are caused, and the service life of the filter cloth is seriously influenced.
Therefore, it is necessary to provide a method for producing a nylon monofilament filter cloth with stable dimension to solve the above technical problems.
Disclosure of Invention
The invention provides a production method of a nylon monofilament filter cloth with stable size, which solves the problems that relative humidity in air is high and even can reach saturation, the nylon filter cloth can be transversely and longitudinally elongated after being wetted and absorbed by moisture, the elongation rate is increased along with the increase of the humidity, the filter cloth is hard in hand feeling and wrinkled on the surface, the size of the nylon filter cloth is unstable, so that a filter cloth product is wrinkled, the overprinting of the filter cloth filter plate is inaccurate, bag making is staggered and the like, and the service life of the filter cloth is seriously influenced.
In order to solve the technical problem, the invention provides a production method of nylon monofilament filter cloth with stable size, which comprises the following steps:
s1: taking a nylon monofilament, warping the nylon monofilament to ensure uniform warp tension, and then sequentially adopting satin weave, drafting, reed drawing and machine weaving;
s2: carrying out calendering finishing on the woven nylon filter cloth on a calender with certain process parameters;
s3: soaking the calendered nylon filter cloth in water to obtain a pre-soaked nylon filter cloth;
s4: and taking out the pre-soaked chinlon filter cloth, placing the filter cloth in a setting machine for high-temperature setting, and drying to obtain the nylon filter cloth.
Preferably, the diameter of the nylon monofilament in S1 is 0.225-0.30mm, the warp density is 520-567/10 cm, the weft density is 142-177/10 cm, and the structure is five three-flying-weft-side reinforced satin.
Preferably, the calendering temperature in S2 is 160-165 ℃, the speed is 4-8m/min, and the pressure is 5-8.5 MPa.
Preferably, the water temperature in the S3 is normal temperature, and the soaking time is 4-12 h.
Preferably, the setting temperature in S4 is 145-150 ℃, and the speed is 4-7 m/min.
Compared with the related technology, the production method of the nylon monofilament filter cloth with stable size provided by the invention has the following beneficial effects:
the invention provides a production method of nylon monofilament filter cloth with stable size, which comprises the following steps of S1: taking nylon monofilaments, warping the nylon monofilaments to ensure uniform warp tension, and then sequentially adopting satin weave, drafting, reed drawing and weaving on a machine; s2: carrying out calendering finishing on the woven nylon filter cloth on a calender with certain process parameters; s3: soaking the calendered nylon filter cloth in water to obtain a pre-soaked nylon filter cloth; s4: taking out the pre-soaked chinlon filter cloth, placing the pre-soaked chinlon filter cloth in a setting machine for high-temperature setting and drying to obtain the chinlon filter cloth, wherein the diameter of each chinlon monofilament in S1 is 0.225-0.30mm, the warp density is 520-567/10 cm, the weft density is 142-177/10 cm, the structure is five three-fly-weft-surface reinforced satin, preferably, the calendering temperature in S2 is 160-165 ℃, the speed is 4-8m/min, the pressure is 5-8.5MPa, the water temperature in S3 is normal temperature, the soaking time is 4-12h, the setting temperature in S4 is 145-165 ℃, the speed is 4-7m/min, the calendering finishing is carried out on the chinlon filter cloth on a calendering machine, the internal stress generated in the weaving process is reduced, the chinlon filter cloth is pressed into a flat shape from an oval shape, the interweaving pores among yarns and the gaps among the fibers are all reduced, the surfaces are flat and compact, soaking the chinlon filter cloth after the calendering treatment in water to obtain a pre-soaked chinlon filter cloth, wherein a proper amount of water can play a role similar to a plasticizer to plasticize the chinlon fiber, so that the hydrogen bonding force on the surface of the chinlon fiber is weakened, and after the sizing treatment, the residual internal stress in the calendering process of the chinlon filter cloth is eliminated, so that the unstable structure tends to be stable; the strength is high, the wear resistance is good, and the service life is long; the pore tight filtration has the advantages of high efficiency, small blockage, easy stripping, difficult material leakage and the like, and is suitable for different high-temperature and strong-alkaline working conditions such as coal washing, mine and sewage treatment.
Detailed Description
The present invention will be further described with reference to the following embodiments.
A production method of a chinlon monofilament filter cloth with stable dimension comprises the following steps:
s1: taking a nylon monofilament, warping the nylon monofilament to ensure uniform warp tension, and then sequentially adopting satin weave, drafting, reed drawing and machine weaving;
s2: carrying out calendering finishing on the woven nylon filter cloth on a calender with certain process parameters;
s3: soaking the calendered nylon filter cloth in water to obtain a pre-soaked nylon filter cloth;
s4: and taking out the pre-soaked chinlon filter cloth, placing the filter cloth in a setting machine for high-temperature setting, and drying to obtain the chinlon filter cloth.
The diameter of the nylon monofilament in the S1 is 0.225-0.30mm, the warp density is 520-.
The rolling temperature in S2 is 160-165 ℃, the speed is 4-8m/min, and the pressure is 5-8.5 MPa.
And the water temperature in the S3 is normal temperature, and the soaking time is 4-12 h.
The setting temperature in S4 is 145-150 ℃, and the speed is 4-7 m/min.
Example 1: warping a nylon monofilament with the diameter of 0.225mm to ensure uniform warp tension, adopting five three flying weft surfaces to strengthen satin texture, with the warp density of 520 pieces/10 cm and the weft density of 157 pieces/10 cm, drafting, reed pulling and weaving on a machine, carrying out calendering finishing on the woven nylon filter cloth by using a calender, wherein the calendering temperature is 165 ℃, the speed is 7m/min and the pressure is 7MPa, and putting the calendered nylon filter cloth into water for soaking treatment for 6 hours to obtain the pre-impregnated nylon filter cloth. Taking out the pre-soaked chinlon filter cloth, placing in a setting machine for high-temperature setting at 148 deg.C at a speed of 6m/min, and oven drying;
example 2: warping a nylon monofilament with the diameter of 0.235mm to ensure uniform warp tension, adopting five three flying weft surfaces to strengthen satin texture, with the warp density of 520 pieces/10 cm and the weft density of 142 pieces/10 cm, drafting, reed pulling and weaving on a machine, carrying out calendering finishing on the woven nylon filter cloth by using a calender, wherein the calendering temperature is 160 ℃, the speed is 6m/min and the pressure is 8MPa, and putting the calendered nylon filter cloth into water for soaking treatment for 8 hours to obtain the pre-impregnated nylon filter cloth. Taking out the pre-soaked chinlon filter cloth, placing in a setting machine for high-temperature setting at 145 ℃ and at the speed of 7m/min, and drying to obtain the product.
Example 3: warping nylon monofilament with the diameter of 0.235mm to ensure uniform warp tension, adopting five three flying weft surfaces to strengthen satin weave, with the warp density of 567 yarns/10 cm and the weft density of 161 yarns/10 cm, drafting, reed drawing and weaving on a machine, performing calendering finishing on the woven nylon filter cloth by using a calender at the calendering temperature of 163 ℃, the speed of 7.5m/min and the pressure of 7.5MPa, and putting the calendered nylon filter cloth into water for soaking treatment for 8 hours to obtain the pre-impregnated nylon filter cloth. Taking out the pre-soaked chinlon filter cloth, placing in a setting machine for high-temperature setting at 148 deg.C and speed of 6m/min, and oven drying.
Comparative example 1: warping a nylon monofilament with the diameter of 0.225mm to ensure uniform warp tension, adopting five three flying weft surfaces to strengthen satin weave, the warp density is 520 pieces/10 cm, the weft density is 157 pieces/10 cm, drafting, reed pulling and weaving on a machine, and putting the woven nylon filter cloth into water to soak for 6 hours to obtain the pre-soaked nylon filter cloth. Taking out the pre-soaked chinlon filter cloth, placing the filter cloth in a setting machine for high-temperature setting, wherein the setting temperature is 148 ℃, the speed is 6m/min, and then performing calendering finishing by using a calender to obtain the nylon filter cloth: wherein the calendering temperature is 165 ℃, the speed is 7m/min, and the pressure is 7 MPa.
Comparative example 2: warping a nylon monofilament with the diameter of 0.235mm to ensure uniform warp tension, adopting five three-flying-weft surface reinforced satin weave tissues with the warp density of 520 pieces/10 cm and the weft density of 142 pieces/10 cm, drafting, reed pulling and weaving on a machine, and putting the woven nylon filter cloth into water to soak for 8 hours to obtain the pre-soaked nylon filter cloth. Taking out the pre-soaked chinlon filter cloth, placing the filter cloth in a setting machine for high-temperature setting, wherein the setting temperature is 145 ℃, the speed is 7m/min, and then performing calendaring finishing by using a calendaring machine to obtain the nylon filter cloth: wherein the calendering temperature is 160 ℃, the speed is 6m/min, and the pressure is 8 MPa.
The filter cloth finishing in the examples 1 to 3 adopts the flow of firstly calendaring, then soaking and then reshaping, the filter cloth finishing in the comparative examples 1 and 2 adopts the flow of firstly soaking, then reshaping and then calendaring, and the warping weaving process in the examples 1 to 3 is the same as that in the comparative examples 1 and 2.
The dimensional changes of the nylon filter cloth after finishing in the examples 1 to 3 and the comparative examples 1 and 2 are measured, and the measurement results are shown in the following table:
it can be seen from the data in the table that the nylon filter cloth is placed in an environment with a relative humidity of 80%, and after two days, the warp-wise and weft-wise dimensional change rates of the embodiments 1-3 are respectively as follows: 0.08 percent and 0.07 percent; 0.19 percent and 0.28 percent; 0.12 percent and 0.14 percent, small size change and stability, and good size stability of the filter cloth. The warp and weft dimensional change rates of comparative example 1 and comparative example 2 are respectively: 0.90 percent and 0.94 percent; 1.00 percent and 1.28 percent, the dimensional change is large, and the dimensional stability of the filter cloth is poor. The nylon filter cloth finished by the method has good dimensional stability.
In conclusion, after the chinlon filter cloth is subjected to calendering treatment, the internal stress of the fabric is reduced, the cohesion among yarns and among fibers is increased under the action of a high-temperature roller, and the structure of the filter cloth is compact. The nylon filter cloth is soaked in water for a long time to enable the nylon fibers to be plasticized slightly, so that the hydrogen bonding force on the surfaces of the nylon fibers is weakened. After shaping and finishing, the residual internal stress in the calendering process is eliminated, so that the unstable structure tends to be stable. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value
Compared with the related technology, the production method of the nylon monofilament filter cloth with stable size provided by the invention has the following beneficial effects:
by S1: taking nylon monofilaments, warping the nylon monofilaments to ensure uniform warp tension, and then sequentially adopting satin weave, drafting, reed drawing and weaving on a machine; s2: carrying out calendering finishing on the woven chinlon filter cloth on a calender with certain process parameters; s3: soaking the calendered nylon filter cloth in water to obtain a pre-soaked nylon filter cloth; s4: taking out the pre-soaked nylon filter cloth, placing the pre-soaked nylon filter cloth in a setting machine for high-temperature setting and drying to obtain the nylon filter cloth, wherein the diameter of a nylon monofilament in S1 is 0.225-0.30mm, the warp density is 520-567/10 cm, the weft density is 142-177/10 cm, the structure is five three-flying weft surface reinforced satin, preferably, the calendering temperature in S2 is 160-165 ℃, the speed is 4-8m/min, the pressure is 5-8.5MPa, the water temperature in S3 is normal temperature, the soaking time is 4-12h, the setting temperature in S4 is 145-150 ℃, the speed is 4-7m/min, the filter cloth is calendered on a calendering machine, the internal stress generated in the weaving process is reduced, the yarns are pressed into a flat shape from an oval shape, the interweaving among the yarns, the gaps among the fibers are all reduced, the surface of the filter cloth is flat and compact, soaking the chinlon filter cloth after the calendering treatment in water to obtain a pre-soaked chinlon filter cloth, wherein a proper amount of water can play a role similar to a plasticizer to plasticize the chinlon fiber, so that the hydrogen bonding force on the surface of the chinlon fiber is weakened, and after the sizing treatment, the residual internal stress in the calendering process of the chinlon filter cloth is eliminated, so that the unstable structure tends to be stable; the strength is high, the wear resistance is good, and the service life is long; the pore tight filtration has the advantages of high efficiency, small blockage, easy stripping, difficult material leakage and the like, and is suitable for different high-temperature and strong-alkaline working conditions such as coal washing, mine and sewage treatment.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The production method of the nylon monofilament filter cloth with stable size is characterized by comprising the following steps:
s1: taking a nylon monofilament, warping the nylon monofilament to ensure uniform warp tension, and then sequentially adopting satin weave, drafting, reed drawing and machine weaving;
s2: carrying out calendering finishing on the woven nylon filter cloth on a calender with certain process parameters;
s3: soaking the calendered nylon filter cloth in water to obtain a pre-soaked nylon filter cloth;
s4: taking out the pre-soaked chinlon filter cloth, placing the filter cloth in a setting machine for high-temperature setting, and drying to obtain the product;
the diameter of the nylon monofilament in the S1 is 0.225-0.30mm, the warp density is 520-567 pieces/10 cm, the weft density is 142-177 pieces/10 cm, the structure is five-piece three-flying-weft-surface reinforced satin, the calendering temperature in the S2 is 160-165 ℃, the speed is 4-8m/min, and the pressure is 5-8.5 MPa.
2. The production method of the polyamide monofilament filter cloth with stable size as claimed in claim 1, wherein the water temperature in S3 is normal temperature, and the soaking time is 4-12 h.
3. The method for producing the dimensionally stable nylon monofilament filter cloth as claimed in claim 1, wherein the setting temperature in S4 is 145-150 ℃ and the speed is 4-7 m/min.
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| CN202011275255.0A CN113151956B (en) | 2020-11-16 | 2020-11-16 | Production method of polyamide monofilament filter cloth with stable size |
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| CN113151956B true CN113151956B (en) | 2022-07-08 |
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| CN107268130B (en) * | 2016-04-08 | 2019-07-23 | 海宁市昊润纺织有限公司 | A kind of filter cloth and its production technology |
| CN110421919A (en) * | 2019-08-07 | 2019-11-08 | 广州广微新材料科技有限公司 | A kind of ultralight aeroge thermal fabric |
| CN111321591A (en) * | 2020-04-27 | 2020-06-23 | 成都新柯力化工科技有限公司 | Method for performing micro-plasticizing softening finishing on nylon fabric |
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