CN102505164A - Variable-diameter hollow fiber, method of producing same and fabric made of same - Google Patents
Variable-diameter hollow fiber, method of producing same and fabric made of same Download PDFInfo
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- CN102505164A CN102505164A CN2011103542291A CN201110354229A CN102505164A CN 102505164 A CN102505164 A CN 102505164A CN 2011103542291 A CN2011103542291 A CN 2011103542291A CN 201110354229 A CN201110354229 A CN 201110354229A CN 102505164 A CN102505164 A CN 102505164A
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Abstract
The invention relates to a variable-diameter hollow fiber, a method of producing the same and a fabric made of the same. The variable-diameter hollow fiber is made of polytrimethylene terephthalate, and the section of the variable-diameter hollow fiber is in the shape of an open ring 0.06mm-0.1mm in diameter. Diameter variation of the hollow fiber is far superior to that of traditional variable-diameter fibers such as slub yarns, and the hollow fiber is especially suitable for being made into fabrics in the fields of thermal underwear, undershirts, sportswear, casual wear, shirts, outdoor sports and the like according to the character that the diameter changes with exogenic action and various excellent performances of the PTT (polytrimethylene terephthalate). The variable-diameter hollow fiber can be made by a conventional PTT spinning process which is simple. The fabric made of the variable-diameter hollow fiber is fine in wearability and low in cost.
Description
Technical field
The invention belongs to field of textiles, particularly a kind of diameter can be according to stressed increase or is reduced to take place the production method of doughnut He this fiber of respective change.In addition, the invention still further relates to the lining of processing by this fiber.
Background technology
Along with growth in the living standard, people require increasingly high for outward appearance, quality and the wearability of lining.High wearability, garment material is the target that the practitioner pursues always cheaply.
Doughnut is a kind of important profiled filament that cross section has cavity vertically.Hollow structure gives fiber good warmth retention property, particular characteristic and styles such as bulkiness.At present, the hollow section of doughnut develops into triangle from circle, quadrangle, quincunx or the like.Simultaneously, through special spinning technique or back arrangement obtain antibiotic, far infrared, fire-retardant, fragrance, the doughnut of function such as cation-modified also continues to bring out.At present, the doughnut that is used for the manufacturing clothes lining mainly is that kind is that PET, cross section are circular doughnut (like patent publication No. CN 101331250 disclosed fibers).Though the lining that uses this doughnut to process has good poisture-penetrability and warmth retention property, had a strong impact on its result of use because of the unadjustable property of the not reversibility of its PET and totally-enclosed hollow.
In addition, also known spandex fibre is a kind of highly elastic fiber, is suitable for making the garment material with high elasticity and excellent recovery.But its cost is very high, and this makes its application particularly receive very big restriction at garment industry.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, but a kind of reducing doughnut is provided.
But the present invention also will provide a kind of production method of reducing doughnut simultaneously.
But the present invention also aims to provide a kind of garment material of being processed by the reducing doughnut, it can produce different wet, the heat-preserving functions of passing through under the external force influence that comings and goings involves, and wearability is good.
For solving the problems of the technologies described above, a kind of technical scheme that the present invention takes is:
But a kind of reducing doughnut, its material are polytrimethylene terephthalate (PTT), cross section is that annular, the diameter (external diameter) with opening is 0.06mm～0.1mm.
Preferably, the radian of said opening is π/6～π.More preferably, the radian of said opening is π/3～3 π/4.
The another technical scheme that the present invention takes is: but a kind of production method of above-mentioned reducing doughnut, and it is a raw material with conventional PTT section, obtains as-spun fibre according to conventional PTT spinning technique; This as-spun fibre oils through cooling, and winding apparatus drawing-off coiling and molding promptly gets said doughnut; Particularly; It is the spinnerets of " C " type that this method adopts pass, when cooling off, makes the opening direction of as-spun fibre face the cooling quench device; And the cooling quench device is arranged on the position apart from 2～3 centimetres of spinnerets lower faces, makes that the temperature of blowing the cooling air on as-spun fibre is 15 ℃～17 ℃.
Conventional PTT spinning technique is known for those skilled in the art, is crystallizing and drying is carried out in section, and the screw extruder melt extruded after the measuring pump metering, is delivered to spinning manifold, forms as-spun fibre through spinnerets.According to the present invention, melt preferably is controlled to be 4～6 minutes at the screw rod and the ducted time of staying of casing.
But the invention still further relates to the purposes that the lining processed by above-mentioned reducing doughnut and this lining are used to make cold-proof underwear, underskirt and sportswear.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
After 1, but reducing doughnut of the present invention forms lining through certain weaving manner, because of there is certain external carbuncle in the specific physical structure in monofilament cross section, thereby make pile up between the cloth cover tow fine and close.Do the time spent when receiving external force, the specific physical structure in cross section can be crispaturaed and fibre diameter is diminished, and bulk density diminishes between the cloth cover tow thereby make, and trafficability characteristic improves; And after external force disappears, because the specific physical structure in resilience that ptt fiber itself exists and cross section can make the answer of crispaturaing, thus the original compactness of answer cloth cover;
2, but reducing doughnut of the present invention is weaved the cross section, back at common tension force and can be formed the physical characteristic that hollow reaches doughnut fully; It comprises a large amount of still airs; Can be widely used in a plurality of fields such as cold-proof underwear, underskirt, sportswear, easy suit, shirt, outdoor exercises and blanket for fabric brings lightweight elasticity, good poisture-penetrability and comfortable warming effect.And on the basis of excellent properties that doughnut reaches, can influence the size of regulating the hollow area, produce different wet, the thermal properties of passing through through the external force that comings and goings involves;
3, but reducing doughnut of the present invention has the reversibility and the excellent elasticity of ptt fiber; And the specific physical structure of fiber cross section has been strengthened recovery and the elasticity of PTT more; The lining that uses this reducing doughnut to make has good fold recovery capability (good fold effect and recovery capability are the characteristics of the most modish functional fabric in the present world), non-ironing, the easy nursing that lining becomes.
But 4, the production method of reducing doughnut of the present invention, the spinnerets of existing through using " C " shape spinnerets pass and through to the strictness of cooling condition control has successfully obtained the doughnut that pass keeps.This method technology is simple, and cost is low.
Description of drawings
Below in conjunction with accompanying drawing and concrete embodiment the present invention is done further detailed explanation.
But Fig. 1 is the cross sectional representation according to reducing doughnut of the present invention;
But Fig. 2 is being the cross sectional representation when receiving external force for the reducing doughnut of Fig. 1;
Wherein: 1, doughnut; 2, opening.
The specific embodiment
As shown in Figure 1, according to the hollow ptt fiber 1 of present embodiment, its diameter D1 is between 0.06～0.1mm, and the cross section is the annular with opening 2.Wherein, the radian of opening 2 is π/4.
As shown in Figure 2, fiber is when receiving external force, and doughnut 1 is crispaturaed and fibre diameter is diminished, and external force is big more, and D2 is just more little.In case external force disappears, then owing to the resilience of ptt fiber existence itself and the specific physical structure in cross section, fiber can return back to original state rapidly.
The hollow ptt fiber that with the specification is 150D/48F is an example, and its vary in diameter situation under different force is referring to table 1.Through test, the proof resilience response rate of fiber is 96%, and elastic recovery rate is 92% rapidly, and slow elastic recovery rate is 4%.
Table 1
| External force (cN) | 0 | 5 | 10 | 15 | 20 | 25 |
| Diameter (mm) | 0.103 | 0.082 | 0.076 | 0.072 | 0.070 | 0.069 |
Visible from last table; But the reducing performance of doughnut of the present invention is far superior to for example slub yarn of traditional reducing fiber; The various excellent properties that characteristic that this diameter changes with the external force effect and PTT itself are had (for example antifouling property well outside; Be easy to dyeing, soft, high resilience in addition; Extensibility is equally good with spandex fibre, compares with the elastomer spandex to be easier to processing etc.) make this doughnut be particularly suitable for processing the particularly lining in fields such as cold-proof underwear, underskirt, sportswear, easy suit, shirt, outdoor exercises.In addition; PTT what deserves to be mentioned is that the propylene glycol that adopts biological fermentation engineering to make replaces traditional petrochemical materials most; Start and utilize biotechnology that the reproducible resource of nature is transformed into the synthon of high molecular polymer, solve petrochemical industry crisis of resource and problem of environmental pollution.
Present embodiment provides the production method of the hollow ptt fiber of a kind of embodiment 1, and it comprises the steps:
(1), adopt PTT conventional section carrying out crystallizing and drying, deliver to measuring pump after getting into the screw extruder melt extruded then; Evenly deliver to each spinning manifold through measuring pump; Wherein, melt time of staying in screw rod and casing pipeline preferably was controlled between 4～6 minutes;
(2), to use the spinnerets pass be " C " type, draw ratio is 5: 1, the acquisition cross section is the as-spun fibre of C shape;
(3), make the opening of as-spun fibre face the cooling quench device; And the cooling quench device is arranged on the position that the below of spinnerets is located apart from 2～3 centimetres of spinneretss (preferred 2 centimetres); And increased the enhancing cooling zone of 10cm water-cooled height in the outside of cooling quench device, made that the temperature of blowing the cooling air on as-spun fibre is 15 ℃～17 ℃, the setting of this cooling condition; Can make fiber quicken to solidify, reach the effect that keeps pass.
(4), through oiling and winding apparatus drawing-off coiling final molding.
More than the present invention has been done detailed description; Its purpose is to let the personage that is familiar with this art can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. but reducing doughnut, it is characterized in that: the material of said fiber is that polytrimethylene terephthalate, cross section are that annular, the diameter with opening is 0.06mm～0.1mm.
2. but reducing doughnut according to claim 1 is characterized in that: the radian of said opening is π/6～π.
3. but reducing doughnut according to claim 2 is characterized in that: the radian of said opening is π/3～3 π/4.
But 4. the production method of the described reducing doughnut of each claim in the claim 1 to 3, it is a raw material with conventional PTT section, obtains as-spun fibre according to conventional PTT spinning technique; This as-spun fibre is through cooling; Oil, winding apparatus drawing-off coiling and molding promptly gets said doughnut, it is characterized in that: this method adopts the spinnerets of pass for " C " type; When cooling off; Make the opening direction of as-spun fibre face the cooling quench device, and the cooling quench device is arranged on the position apart from 2～3 centimetres of spinnerets lower faces, makes that the temperature of blowing the cooling air on as-spun fibre is 15 ℃～17 ℃.
5. but lining of processing by the described reducing doughnut of each claim in the claim 1 to 3.
6. the described lining of claim 5 purposes that is used to make cold-proof underwear, underskirt and sportswear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110354229 CN102505164B (en) | 2011-11-10 | 2011-11-10 | Variable-diameter hollow fiber, method of producing same and fabric made of same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110354229 CN102505164B (en) | 2011-11-10 | 2011-11-10 | Variable-diameter hollow fiber, method of producing same and fabric made of same |
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| CN102505164A true CN102505164A (en) | 2012-06-20 |
| CN102505164B CN102505164B (en) | 2013-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588870A (en) * | 2018-05-15 | 2018-09-28 | 江南大学 | A kind of bamboo joint structure hollow monofilaments and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070072001A (en) * | 2005-12-30 | 2007-07-04 | 주식회사 효성 | Polytrimethyleneterephthalate fiber with good hygroscopicity and manufacturring method thereof |
| CN101215723A (en) * | 2008-01-11 | 2008-07-09 | 东华大学 | 8-shaped PET/PTT hollow fibre and preparing method thereof |
| CN102121143A (en) * | 2010-01-11 | 2011-07-13 | 上海歌灵新材料科技有限公司 | C-shaped bamboo charcoal mixed ester fibers and preparation method thereof |
| CN202543404U (en) * | 2011-11-10 | 2012-11-21 | 苏州龙杰特种纤维股份有限公司 | Variable-diameter hollow fiber and fabric made by hollow fiber |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070072001A (en) * | 2005-12-30 | 2007-07-04 | 주식회사 효성 | Polytrimethyleneterephthalate fiber with good hygroscopicity and manufacturring method thereof |
| CN101215723A (en) * | 2008-01-11 | 2008-07-09 | 东华大学 | 8-shaped PET/PTT hollow fibre and preparing method thereof |
| CN102121143A (en) * | 2010-01-11 | 2011-07-13 | 上海歌灵新材料科技有限公司 | C-shaped bamboo charcoal mixed ester fibers and preparation method thereof |
| CN202543404U (en) * | 2011-11-10 | 2012-11-21 | 苏州龙杰特种纤维股份有限公司 | Variable-diameter hollow fiber and fabric made by hollow fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588870A (en) * | 2018-05-15 | 2018-09-28 | 江南大学 | A kind of bamboo joint structure hollow monofilaments and preparation method thereof |
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