CN112709008A - Rear electret type hot air electrostatic filter cotton and manufacturing method thereof - Google Patents
Rear electret type hot air electrostatic filter cotton and manufacturing method thereof Download PDFInfo
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- CN112709008A CN112709008A CN202110090928.3A CN202110090928A CN112709008A CN 112709008 A CN112709008 A CN 112709008A CN 202110090928 A CN202110090928 A CN 202110090928A CN 112709008 A CN112709008 A CN 112709008A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Abstract
The invention relates to the technical field of electrostatic filter cotton, in particular to rear electret hot air electrostatic filter cotton which comprises the following raw material components: 80-100 parts of polyester fiber, 10-20 parts of polypropylene fiber, 15-25 parts of halogen-free acrylic fiber, 2-10 parts of electrostatic master batch, 5-8 parts of low-melting-point fiber and 1-3 parts of silver-loaded zeolite, the electrostatic filter cotton provided by the invention can achieve the lowest grammage of 25g, and the strength can still meet the requirements of subsequent slitting, rolling and unreeling without the phenomena of width reduction and the like, and the electrostatic filter cotton is not punctured by multiple needling and spunlace back and forth, has better bulkiness, has higher dust-containing capacity under certain filtering efficiency, namely the dust-containing capacity is increased.
Description
Technical Field
The invention relates to the technical field of electrostatic filter cotton, in particular to rear electret hot air electrostatic filter cotton and a manufacturing method thereof.
Background
The electrostatic filter cotton is a non-woven material obtained by carding one or more short fibers, needling the short fibers into a net and then performing electrostatic electret treatment on the net; the material is called electrostatic cotton because of the raw material or electrostatic treatment, and has better filtering efficiency than common needle punched cotton, and better resistance and dust holding performance compared with other filtering materials; the method is divided into electrostatic fiber filter cotton, electrostatic electret filter cotton and composite electrostatic filter cotton according to electrostatic processing.
The fluffy degree is one of the key indexes for testing the dust holding capacity of the filter material, and the fluffy degree of the electrostatic filter cotton can be reduced through a needling process, so that the filtering effect of the electrostatic filter cotton is reduced, the conventional electrostatic filter cotton needs to be compounded with a layer of non-woven fabric as a base fabric, the strength is improved, the subsequent slitting and rolling are facilitated, a client can not narrow the breadth stress when unreeling for use, but the use of the non-woven fabric can improve the wind resistance of the electrostatic filter cotton, and the normal use of the electrostatic filter cotton is influenced.
Therefore, we propose a rear electret type hot air electrostatic filter cotton and a manufacturing method thereof to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides rear electret hot air electrostatic filter cotton and a manufacturing method thereof.
A rear electret hot air electrostatic filter cotton comprises the following raw material components: 80-100 parts of polyester fiber, 10-20 parts of polypropylene fiber, 15-25 parts of halogen-free acrylic fiber, 2-10 parts of electrostatic master batch, 5-8 parts of low-melting-point fiber and 1-3 parts of silver-loaded zeolite.
Preferably, the fineness range of the polyester fibers is 1.0-3.5dtex, the diameter of a single fiber is 12-20 mu m, the fiber length is 30-60mm, and the cross section of the fiber is in a columnar structure.
Preferably, the silver content of the silver-loaded zeolite is 3% -5%.
Preferably, the method for manufacturing the rear electret type hot air electrostatic filter cotton comprises the following steps:
s1, batching: weighing 5-8 parts of low-melting-point fiber, 15-25 parts of halogen-free acrylic fiber and 1-3 parts of silver-loaded zeolite according to the mass ratio of the substances, and recording the weight parts as group A materials; weighing 80-100 parts of polyester fiber, 10-20 parts of polypropylene fiber and 2-10 parts of electrostatic master batch, and recording as group B material;
s2 mixing: uniformly mixing the group A materials through an opener, a cotton mixer and a fine opener, feeding the mixed materials into a group A cotton box for later use through the group A fine opener, uniformly mixing the group B materials through the opener, the cotton mixer and the fine opener, and feeding the mixed materials into a group B cotton box for later use through the group B fine opener;
s3 combing: carding the raw materials in the cotton box of the group A by using a carding production line of the group A to produce an upper layer of lapping and a lower layer of lapping; carding the raw materials in the cotton box of the group B by using a carding production line of the group B to produce a carding layer, and placing the carding layer between an upper lapping layer and a lower lapping layer produced by a lapping machine of the group A to finally form a carding product with the same material of the upper and lower layers and different intermediate materials, namely sandwich cellucotton;
s4 fusion bonding: feeding the sandwich fiber cotton into a hot air oven, setting the critical point temperature of low-melting-point fibers, baking the sandwich fiber cotton by utilizing hot air, melting the low-melting-point fibers of the upper layer and the lower layer, and forming a melt-bonding layer on the surface of the sandwich fiber cloth to obtain prefabricated fiber cotton;
s5 electrostatic electret: and (3) passing the prefabricated cellucotton through a high-voltage corona discharge electric field, and controlling the distance between the prefabricated cellucotton passing through the electric field and a high-voltage wire of the electric field within the range of 10-35 cm.
S6 rolling: and shearing the prefabricated cellucotton subjected to electrostatic electret according to requirements, and winding to form the electrostatic filter cotton.
Preferably, said group a carding line comprises two carding lappers.
Preferably, the carding production line of the group B comprises a carding lapping machine and a cross lapping machine.
Preferably, the heating temperature of the hot air oven is 100-150 ℃.
Preferably, the voltage of the discharge electric field is 60-120KV, and the discharge time is 1.2-2S.
The invention has the beneficial effects that:
1. the electrostatic filter cotton provided by the invention can achieve the lowest grammage of 25g, the strength can still meet the requirements of subsequent slitting, winding and unwinding, the phenomena of width reduction and the like do not occur, the electrostatic filter cotton is not punctured back and forth by multiple needling and spunlace, the bulkiness is better, and the electrostatic filter cotton has higher dust containing capacity under certain filtering efficiency, namely the dust containing capacity is increased.
2. The electrostatic filter cotton provided by the invention has the advantages of simple manufacturing method and high production efficiency, and the produced electrostatic filter cotton is more fluffy, has larger dust holding capacity and higher strength and does not need to be compounded by base cloth.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
In embodiment 1, a post-electret hot air electrostatic filter cotton comprises the following raw material components: 80 parts of polyester fiber, 10 parts of polypropylene fiber, 15 parts of halogen-free acrylic fiber, 2 parts of electrostatic master batch, 5 parts of low-melting-point fiber and 1 part of silver-loaded zeolite.
In embodiment 2, a post-electret hot air electrostatic filter cotton includes the following raw material components: 100 parts of polyester fiber, 20 parts of polypropylene fiber, 25 parts of halogen-free acrylic fiber, 10 parts of electrostatic master batch, 8 parts of low-melting-point fiber and 3 parts of silver-loaded zeolite.
In embodiment 3, a post-electret hot air electrostatic filter cotton includes the following raw material components: 90 parts of polyester fiber, 15 parts of polypropylene fiber, 20 parts of halogen-free acrylic fiber, 8 parts of electrostatic master batch, 7 parts of low-melting-point fiber and 2 parts of silver-loaded zeolite.
In embodiments 1 to 3, a method for manufacturing post-electret hot air electrostatic filter cotton includes the following steps:
s1, batching: weighing low-melting-point fibers, halogen-free acrylic fibers and silver-loaded zeolite according to the mass ratio of the substances, and recording the low-melting-point fibers, the halogen-free acrylic fibers and the silver-loaded zeolite as A group of ingredients; weighing polyester fiber, polypropylene fiber and electrostatic master batch and recording as B group of ingredients;
s2 mixing: uniformly mixing the group A materials through an opener, a cotton mixer and a fine opener, feeding the mixed materials into a group A cotton box for later use through the group A fine opener, uniformly mixing the group B materials through the opener, the cotton mixer and the fine opener, and feeding the mixed materials into a group B cotton box for later use through the group B fine opener;
s3 combing: carding the raw materials in the cotton box of the group A by using a carding production line of the group A to produce an upper layer of lapping and a lower layer of lapping; carding the raw materials in the cotton box of the group B by using a carding production line of the group B to produce a carding layer, and placing the carding layer between an upper lapping layer and a lower lapping layer produced by a lapping machine of the group A to finally form a carding product with the same material of the upper and lower layers and different intermediate materials, namely sandwich cellucotton;
s4 fusion bonding: feeding the sandwich fiber cotton into a hot air oven, setting the critical point temperature of low-melting-point fibers, baking the sandwich fiber cotton by utilizing hot air, melting the low-melting-point fibers of the upper layer and the lower layer, and forming a melt-bonding layer on the surface of the sandwich fiber cloth to obtain prefabricated fiber cotton;
s5 electrostatic electret: and (3) passing the prefabricated cellucotton through a high-voltage corona discharge electric field, and controlling the distance between the prefabricated cellucotton passing through the electric field and a high-voltage wire of the electric field within the range of 10-35 cm.
S6 rolling: and shearing the prefabricated cellucotton subjected to electrostatic electret according to requirements, and winding to form the electrostatic filter cotton.
Further, the A group carding production line comprises two carding and lapping machines.
Furthermore, the B group carding production line comprises a carding lapping machine and a cross lapping machine.
Further, the heating temperature of the hot air oven is 100-150 ℃.
Furthermore, the voltage of the discharge electric field is 60-120KV, and the discharge time is 1.2-2S.
Furthermore, the fineness range of the polyester fiber is 1.0-3.5dtex, the diameter of a single fiber is 12-20 mu m, the fiber length is 30-60mm, and the cross section of the fiber is in a columnar structure.
Furthermore, the silver content in the silver-carrying zeolite is 3% -5%.
In embodiments 1 to 3, the electrostatic filter cotton provided by the present invention can achieve a lowest grammage of 25g, and the strength can still meet the requirements of subsequent slitting, winding, and unwinding, without the occurrence of phenomena such as width reduction, and the like, and the electrostatic filter cotton is not subjected to multiple needling and spunlace back-and-forth puncture, and has a good bulkiness, and has a high dust holding capacity, i.e., an increased dust holding capacity, under a certain filtration efficiency.
The electrostatic filter cotton provided by the invention has the advantages of simple manufacturing method and high production efficiency, and the produced electrostatic filter cotton is more fluffy, has larger dust holding capacity and higher strength and does not need to be compounded by base cloth.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The rear electret type hot air electrostatic filter cotton is characterized by comprising the following raw material components: 80-100 parts of polyester fiber, 10-20 parts of polypropylene fiber, 15-25 parts of halogen-free acrylic fiber, 2-10 parts of electrostatic master batch, 5-8 parts of low-melting-point fiber and 1-3 parts of silver-loaded zeolite.
2. The post-electret hot-air electrostatic filter cotton according to claim 1, wherein the fineness of the polyester fiber ranges from 1.0 to 3.5dtex, the diameter of a single fiber ranges from 12 to 20 μm, the fiber length ranges from 30 to 60mm, and the cross section of the fiber is in a columnar structure.
3. The post-electret hot-air electrostatic filter cotton according to claim 1, wherein the silver content in the silver-loaded zeolite is 3% to 5%.
4. The method for manufacturing the post-electret hot-air electrostatic filter cotton according to claim 1, comprising the following steps:
s1, batching: weighing 5-8 parts of low-melting-point fiber, 15-25 parts of halogen-free acrylic fiber and 1-3 parts of silver-loaded zeolite according to the mass ratio of the substances, and recording the weight parts as group A materials; weighing 80-100 parts of polyester fiber, 10-20 parts of polypropylene fiber and 2-10 parts of electrostatic master batch, and recording as group B material;
s2 mixing: uniformly mixing the group A materials through an opener, a cotton mixer and a fine opener, feeding the mixed materials into a group A cotton box for later use through the group A fine opener, uniformly mixing the group B materials through the opener, the cotton mixer and the fine opener, and feeding the mixed materials into a group B cotton box for later use through the group B fine opener;
s3 combing: carding the raw materials in the cotton box of the group A by using a carding production line of the group A to produce an upper layer of lapping and a lower layer of lapping; carding the raw materials in the cotton box of the group B by using a carding production line of the group B to produce a carding layer, and placing the carding layer between an upper lapping layer and a lower lapping layer produced by a lapping machine of the group A to finally form a carding product with the same material of the upper and lower layers and different intermediate materials, namely sandwich cellucotton;
s4 fusion bonding: feeding the sandwich fiber cotton into a hot air oven, setting the critical point temperature of low-melting-point fibers, baking the sandwich fiber cotton by utilizing hot air, melting the low-melting-point fibers of the upper layer and the lower layer, and forming a melt-bonding layer on the surface of the sandwich fiber cloth to obtain prefabricated fiber cotton;
s5 electrostatic electret: enabling the prefabricated cellucotton to pass through a high-voltage corona discharge electric field, and controlling the distance between the prefabricated cellucotton passing through the electric field and a high-voltage wire of the electric field within the range of 10-35 cm;
s6 rolling: and shearing the prefabricated cellucotton subjected to electrostatic electret according to requirements, and winding to form the electrostatic filter cotton.
5. The method for manufacturing the post-electret hot-air electrostatic filter cotton according to claim 4, wherein the A group carding production line comprises two carding and lapping machines.
6. The method for manufacturing the post-electret hot-air electrostatic filter cotton according to claim 4, wherein the B-group carding production line comprises a carding lapping machine and a cross lapping machine.
7. The method for manufacturing the post-electret hot-air electrostatic filter cotton according to claim 4, wherein the heating temperature of the hot-air oven is 100 ℃ to 150 ℃.
8. The method for manufacturing the post-electret hot-air electrostatic filter cotton according to claim 1, wherein the voltage of the discharge electric field is 60-120KV, and the discharge time is 1.2-2S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110090928.3A CN112709008A (en) | 2021-01-22 | 2021-01-22 | Rear electret type hot air electrostatic filter cotton and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110090928.3A CN112709008A (en) | 2021-01-22 | 2021-01-22 | Rear electret type hot air electrostatic filter cotton and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112709008A true CN112709008A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110090928.3A Pending CN112709008A (en) | 2021-01-22 | 2021-01-22 | Rear electret type hot air electrostatic filter cotton and manufacturing method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002018217A (en) * | 2000-04-10 | 2002-01-22 | Toray Ind Inc | Filter |
| CN1344827A (en) * | 2000-09-29 | 2002-04-17 | 康那香企业股份有限公司 | :Composite card web and air-lay process for producing non-woven fabric |
| PL365847A1 (en) * | 2000-08-31 | 2005-01-10 | Kimberly-Clark Worldwide, Inc. | Integrated nonwoven laminate material |
| CN102470302A (en) * | 2009-07-08 | 2012-05-23 | Jnc株式会社 | Air filter material using multilayer electret nonwoven fabric |
| CN108579208A (en) * | 2018-04-09 | 2018-09-28 | 厦门高科防静电装备有限公司 | The preparation method of electrostatic filter pulp and the electrostatic filter pulp made from the preparation method |
| CN111304827A (en) * | 2020-05-07 | 2020-06-19 | 刘志坚 | Composite short fiber electret hot air non-woven fabric preparation process |
| CN111876905A (en) * | 2020-08-25 | 2020-11-03 | 江苏金美达新材料有限公司 | Multilayer melt-blown non-woven fabric and preparation method thereof |
| JP6795235B1 (en) * | 2020-04-08 | 2020-12-02 | ヤマシンフィルタ株式会社 | Filter media and masks for masks |
| WO2020261034A1 (en) * | 2019-06-28 | 2020-12-30 | 3M Innovative Properties Company | Filter assembly, prefilter assembly, and respirator including the same |
-
2021
- 2021-01-22 CN CN202110090928.3A patent/CN112709008A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002018217A (en) * | 2000-04-10 | 2002-01-22 | Toray Ind Inc | Filter |
| PL365847A1 (en) * | 2000-08-31 | 2005-01-10 | Kimberly-Clark Worldwide, Inc. | Integrated nonwoven laminate material |
| CN1344827A (en) * | 2000-09-29 | 2002-04-17 | 康那香企业股份有限公司 | :Composite card web and air-lay process for producing non-woven fabric |
| CN102470302A (en) * | 2009-07-08 | 2012-05-23 | Jnc株式会社 | Air filter material using multilayer electret nonwoven fabric |
| CN108579208A (en) * | 2018-04-09 | 2018-09-28 | 厦门高科防静电装备有限公司 | The preparation method of electrostatic filter pulp and the electrostatic filter pulp made from the preparation method |
| WO2020261034A1 (en) * | 2019-06-28 | 2020-12-30 | 3M Innovative Properties Company | Filter assembly, prefilter assembly, and respirator including the same |
| JP6795235B1 (en) * | 2020-04-08 | 2020-12-02 | ヤマシンフィルタ株式会社 | Filter media and masks for masks |
| CN111304827A (en) * | 2020-05-07 | 2020-06-19 | 刘志坚 | Composite short fiber electret hot air non-woven fabric preparation process |
| CN111876905A (en) * | 2020-08-25 | 2020-11-03 | 江苏金美达新材料有限公司 | Multilayer melt-blown non-woven fabric and preparation method thereof |
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Application publication date: 20210427 |
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