CN104878475A - Large-diameter sheath-core type composite monofilament and production method thereof - Google Patents
Large-diameter sheath-core type composite monofilament and production method thereof Download PDFInfo
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- CN104878475A CN104878475A CN201510317311.5A CN201510317311A CN104878475A CN 104878475 A CN104878475 A CN 104878475A CN 201510317311 A CN201510317311 A CN 201510317311A CN 104878475 A CN104878475 A CN 104878475A
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- core
- monofilament
- type composite
- composite monofilament
- sheath
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Multicomponent Fibers (AREA)
Abstract
The invention provides a large-diameter sheath-core type composite monofilament and a production method of the large-diameter sheath-core type composite monofilament. The large-diameter sheath-core type composite monofilament comprises a sheath layer and a core layer positioned at the inner side of the sheath layer, wherein the melting point difference of the sheath layer material and the core layer material is 30 to 70 DEG C; polypropylene slices are selected to be used as core layer materials; polyethylene slices are used as sheath layer materials; the sheath layer materials and the core layer materials are extruded in a molten way through different screw rods, pass through a metering pump according to a certain mass percentage, and are extruded out through a sheath core composite spinneret plate for spinning; the extruded monofilament is cooled through a liquid cooling water tank with the temperature being 10 to 50 DEG C; the cooled monofilament is stretched, and the stretching multiplying power is 4 to 8 times; the stretched monofilament is subjected to thermal shaping and is then wound. The large-diameter sheath-core composite monofilament and the production method of the large-diameter sheath-core composite monofilament provided by the invention have the advantages that two kinds of materials with different melting points are used as the sheath layer and the core layer of the monofilament, through the treatment, the firm combination of the sheath layer and the core layer is realized, in addition, in the process of processing the monofilament into a window screen, mesh points can be more easily bonded, and the firmness is higher.
Description
Technical field
The present invention relates to a kind of monofilament, particularly relate to a kind of major diameter core-skin type composite monofilament and production method thereof.
Background technology
In the environment such as modern house office hotel, in order to mosquito-proof insect protected, window is all installed window screening, common are stainless steel window screening the most, epoxy coating window screening, the stealthy window screening of glass fibre plain weave etc.In addition, in order to prevent insect pest to the infringement of crops in agricultural production process, insect protected gauze can be adopted.Above-mentioned window screening and insect protected gauze, the comfortable and agricultural production of the life for people is provided convenience, but by the restriction of gauze material, has various defect in its use procedure.
The cost compare of stainless steel window screening is high, and cannot realize invisible telescoping; The glass fibre chip of the aging rear generation of fibre-glass screen netting has harm to human body; General agriculture insect protected gauze, in use can produce the slippage of network intertwined point, mesh is out of shape, insect pest still can enter infringement.For above-mentioned situation, market is to a kind of low cost, collapsible, and the gauze that mesh can be fixed needs more and more stronger.A kind of is raw material with polymer filament, can meet that above-mentioned functions requires simultaneously gauze arise at the historic moment.
Chinese patent CN1037412255A discloses a kind of polytrimethylene terephthalate monofilament, the gauze that this monofilament is made into, and in Post isothermal treatment process, effectively cannot realize the bonding of mesh point.Chinese patent CN102864522A and CN104195671A discloses the core-sheath monofilament of a kind of PP/PET and PA6/PET, but because the compatibility of the polymer of PP and PET, PA6 and PET is bad, in use easily there is the stripping of cortex, the gauze mesh point bonding be made into by this monofilament to be realized simultaneously, need higher temperature.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The object of this invention is to provide a kind of major diameter core-skin type composite monofilament and production method thereof, the monofilament grid spot gluing solved as gauze material is comparatively difficult, and cortex such as easily to peel off at the problem.
The invention provides a kind of major diameter core-skin type composite monofilament, comprise cortex and be positioned at the sandwich layer inside described cortex, described cortex and described sandwich layer mass percent are 20:80 ~ 60:40, described cortical material is polyethylene, described core material is polypropylene, and the fusing point of described cortical material is lower than the fusing point 30 ~ 70 DEG C of described core material.。
Present invention also offers a kind of production method of major diameter core-skin type composite monofilament, comprise the following steps:
S101: choose polypropylene chip as core material, choose polyethylene section as cortical material, described cortical material, described core material are melt extruded by different screw rods, according to certain mass percent by measuring pump, through core-sheath spinnerets extruding spinning;
S102: the monofilament extruded is cooled by the liquid cools tank that temperature is 10 ~ 50 DEG C;
S103: cooled monofilament is stretched, described stretching ratio is 4 ~ 8 times;
S104: HEAT SETTING is carried out to the monofilament after stretching, reels subsequently.
The invention provides a kind of major diameter core-skin type composite monofilament and production method thereof, by using the material of two kinds of different melting points as the cortex of monofilament and sandwich layer, by the process of specific process step and corresponding temperature etc., the combination achieving this major diameter core-skin type composite monofilament cortex and sandwich layer is more firm, and mesh point is more prone to bonding and more firm in the process being processed into window screening.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of major diameter core-skin type composite monofilament production method provided by the invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, be clearly and completely described below to the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The element described in one embodiment of the invention and feature can combine with the element shown in one or more other embodiment and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
Embodiment one:
Embodiments of the invention one provide a kind of major diameter core-skin type composite monofilament, comprise cortex and be positioned at the sandwich layer inside cortex, cortex and sandwich layer mass percent are 20:80 ~ 60:40, cortical material is polyethylene, core material is polypropylene, and the fusing point difference of cortical material and core material is 30 ~ 70 DEG C.
The major diameter core-skin type composite monofilament that this embodiment provides is by using the polyester material of different melting points as cortex and sandwich layer, and the fusing point of cortex is arranged lower, when being processed into window screening, the material of cortex is more prone to melt, and the connection between mesh point is more prone to.
Optionally, the cross section of composite monofilament is for circle and diameter is 0.08 ~ 0.8mm, and fracture strength is 3.0-6.0cN/dtex, and elastic extension is 5 ~ 25%.
Further, sandwich layer cross section is circular, and the cross section of major diameter core-skin type composite monofilament and the cross section of sandwich layer are concentric circles or off-centre operation.
Further, cortex and sandwich layer mass percent are 30:70 ~ 50:50; Cortex in the present invention and sandwich layer need to ensure above-mentioned mass percent, and the composite monofilament produced thus can ensure the demand of reprocessing more.
Optionally, cortical material is fusing point is 100 ~ 140 DEG C, needs the fusing point difference ensureing the fusing point of cortical material and the fusing point of core material to be 30 ~ 70 DEG C.
Optionally, the melt index of core material is 5 ~ 30g/10min.
Major diameter core-skin type composite monofilament provided by the invention in use cortex difficult drop-off, service time is long, and the mesh point contacted with each other is more firm, and its fracture strength is 3.0-6.0cN/dtex, and elastic extension is 5 ~ 25%.
Embodiment two:
As shown in Figure 1, present invention also offers a kind of production method of major diameter core-skin type composite monofilament, comprise step:
S101: choosing melt index is that 5 ~ 30g/10min polypropylene chip is as core material, choose polyethylene section as cortical material, cortical material, core material are melt extruded by different screw rods, according to certain mass percent by measuring pump, through core-sheath spinnerets extruding spinning;
S102: the monofilament extruded is cooled by the liquid cools tank that temperature is 10 ~ 50 DEG C;
S103: cooled monofilament is stretched, described stretching ratio is 4 ~ 8 times;
S104: HEAT SETTING is carried out to the monofilament after stretching, reels subsequently.
The present invention obtains composite monofilament by above-mentioned raw material and production stage, the material that cortex and sandwich layer adopt fusing point different respectively, ensure that the connection in the manufacturing process of window screening between mesh point is more easy and firm.
Optionally, the temperature of melting in step S101 is: 200 ~ 290 DEG C; The mass percent of cortical material and core material is 20:80 ~ 60:40.
Further, the cortex in the present invention and sandwich layer mass percent can be preferably 30:70 ~ 50:50; Cortex in the present invention and sandwich layer can ensure the demand of reprocessing more according to the composite monofilament that above-mentioned percentage is produced.
Optionally, be stretched as hot water in step S103 to stretch or hot blast stretching; Described hot water draft temperature is: 80 ~ 95 DEG C, and described hot blast draft temperature is: 90 ~ 200 DEG C.Cooled monofilament needs by stretching step to reach the specification of needs, such as diameter, elongation at break, elastic extension etc.
Optionally, described winding speed is 80 ~ 200m/min.Carrying out stretching and major diameter core-skin type composite monofilament after HEAT SETTING needs to be wound up, unaffected in order to ensure other performances of this monofilament, winding speed need control at 80 ~ 200m/min.
The present invention obtains major diameter core-skin type composite monofilament by above-mentioned raw material and production stage, the combination achieving this major diameter core-skin type composite monofilament cortex and sandwich layer is more firm, and mesh point is more prone to bonding and more firm in the process being processed into window screening.
State in each embodiment on the invention, the sequence number of embodiment and/or sequencing are only convenient to describe, and do not represent the quality of embodiment.The description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
Although last it is noted that described the present invention and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and converting.And scope of the present invention is not limited only to the specific embodiment of process, equipment, means, method and step described by description.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (10)
1. a major diameter core-skin type composite monofilament, it is characterized in that, comprise cortex and be positioned at the sandwich layer inside described cortex, described cortex and described sandwich layer mass percent are 20:80 ~ 60:40, described cortical material is polyethylene, described core material is polypropylene, and the fusing point of described cortical material is lower than the fusing point 30 ~ 70 DEG C of described core material.
2. major diameter core-skin type composite monofilament according to claim 1, is characterized in that, the cross section of described composite monofilament is for circle and diameter is 0.08 ~ 0.8mm, and fracture strength is 3.0-6.0cN/dtex, and elastic extension is 5 ~ 25%.
3. major diameter core-skin type composite monofilament according to claim 2, is characterized in that, described sandwich layer cross section is circular, and the cross section of the cross section of described composite monofilament and described sandwich layer is concentric circles or off-centre operation.
4. major diameter core-skin type composite monofilament according to claim 1, is characterized in that, described cortex and described sandwich layer mass percent are 30:70 ~ 50:50.
5. major diameter core-skin type composite monofilament according to claim 1, is characterized in that, described cortical material is fusing point is 100 ~ 140 DEG C.
6. major diameter core-skin type composite monofilament according to claim 1, is characterized in that, the melt index of described core material is 5 ~ 30g/10min.
7. a production method for major diameter core-skin type composite monofilament as claimed in claim 1, is characterized in that, comprise the following steps:
S101: choosing melt index is that 5 ~ 30g/10min polypropylene chip is as core material, choose polyethylene section as cortical material, described cortical material, described core material are melt extruded by different screw rods, according to certain mass percent by measuring pump, through core-sheath spinnerets extruding spinning;
S102: the monofilament extruded is cooled by the liquid cools tank that temperature is 10 ~ 50 DEG C;
S103: cooled monofilament is stretched, described stretching ratio is 4 ~ 8 times;
S104: HEAT SETTING is carried out to the monofilament after stretching, reels subsequently.
8. the production method of major diameter core-skin type composite monofilament according to claim 7, is characterized in that, melt temperature described in step S101 is 200 ~ 290 DEG C; The mass percent of described cortical material and described core material is 20:80 ~ 60:40.
9. the production method of major diameter core-skin type composite monofilament according to claim 7, it is characterized in that, be stretched as hot water described in step S103 to stretch or hot blast stretching, the temperature that described hot water stretches is 80 ~ 95 DEG C, and the temperature that described hot blast stretches is 90 ~ 200 DEG C.
10. the production method of major diameter core-skin type composite monofilament according to claim 7, is characterized in that, described winding speed is 80 ~ 200m/min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317311.5A CN104878475A (en) | 2015-06-10 | 2015-06-10 | Large-diameter sheath-core type composite monofilament and production method thereof |
| PCT/CN2015/096221 WO2016197560A1 (en) | 2015-06-10 | 2015-12-02 | Large diameter sheath-core composite monofilament and production method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317311.5A CN104878475A (en) | 2015-06-10 | 2015-06-10 | Large-diameter sheath-core type composite monofilament and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104878475A true CN104878475A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510317311.5A Pending CN104878475A (en) | 2015-06-10 | 2015-06-10 | Large-diameter sheath-core type composite monofilament and production method thereof |
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| CN (1) | CN104878475A (en) |
| WO (1) | WO2016197560A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197560A1 (en) * | 2015-06-10 | 2016-12-15 | 南通新帝克单丝科技股份有限公司 | Large diameter sheath-core composite monofilament and production method therefor |
| CN106245221A (en) * | 2016-08-29 | 2016-12-21 | 上海市崇明县三联手帕厂 | A kind of gauze material and gauze |
| CN107653514A (en) * | 2017-09-26 | 2018-02-02 | 江南大学 | A kind of skin-core structure composite fibre and high-performance fiber base composite board |
| CN107988653A (en) * | 2017-12-19 | 2018-05-04 | 广东蒙泰高新纤维股份有限公司 | A kind of low melting point high intensity PE-PP core-sheath monofilament and preparation method thereof |
| CN110079893A (en) * | 2018-01-25 | 2019-08-02 | 三芳化学工业股份有限公司 | Composite fibre |
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| JP2846675B2 (en) * | 1989-10-23 | 1999-01-13 | 宇部日東化成株式会社 | Composite fiber with excellent bulkiness |
| JP3853774B2 (en) * | 2003-10-01 | 2006-12-06 | 倉敷紡績株式会社 | Nonwoven fabric for reinforcement |
| CN101699974A (en) * | 2009-11-17 | 2010-05-05 | 汇投投资有限公司 | Bonding-type agricultural net |
| CN102277638A (en) * | 2011-08-09 | 2011-12-14 | 马海燕 | Large-diameter sheath-core type hot molten monofilament and application thereof |
| CN102864522B (en) * | 2012-09-29 | 2014-04-23 | 马海燕 | Large-diameter PP-PET (polypropylene-polyethylene terephthalate) sheath-core composite monofilament and production method thereof |
| CN104878475A (en) * | 2015-06-10 | 2015-09-02 | 马海燕 | Large-diameter sheath-core type composite monofilament and production method thereof |
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2015
- 2015-06-10 CN CN201510317311.5A patent/CN104878475A/en active Pending
- 2015-12-02 WO PCT/CN2015/096221 patent/WO2016197560A1/en active Application Filing
Non-Patent Citations (1)
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| 邬国铭: "《高分子材料加工工艺学》", 31 July 2000 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197560A1 (en) * | 2015-06-10 | 2016-12-15 | 南通新帝克单丝科技股份有限公司 | Large diameter sheath-core composite monofilament and production method therefor |
| CN106245221A (en) * | 2016-08-29 | 2016-12-21 | 上海市崇明县三联手帕厂 | A kind of gauze material and gauze |
| CN107653514A (en) * | 2017-09-26 | 2018-02-02 | 江南大学 | A kind of skin-core structure composite fibre and high-performance fiber base composite board |
| CN107988653A (en) * | 2017-12-19 | 2018-05-04 | 广东蒙泰高新纤维股份有限公司 | A kind of low melting point high intensity PE-PP core-sheath monofilament and preparation method thereof |
| CN110079893A (en) * | 2018-01-25 | 2019-08-02 | 三芳化学工业股份有限公司 | Composite fibre |
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| Publication number | Publication date |
|---|---|
| WO2016197560A1 (en) | 2016-12-15 |
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