CN105887233A - Method for preparing extra white regenerated polyester short fiber - Google Patents
Method for preparing extra white regenerated polyester short fiber Download PDFInfo
- Publication number
- CN105887233A CN105887233A CN201610482666.4A CN201610482666A CN105887233A CN 105887233 A CN105887233 A CN 105887233A CN 201610482666 A CN201610482666 A CN 201610482666A CN 105887233 A CN105887233 A CN 105887233A
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- China
- Prior art keywords
- extra white
- regenerated polyester
- staple fiber
- polyester staple
- preparation
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Classifications
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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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a method for preparing extra white regenerated polyester short fiber. The method comprises the following steps: feeding the following spinning raw materials into a vacuum rotary drum drying system: 50-55wt% of a chemical fiber bubble material, 44.53-49.53wt% of waste pet bottles, 0.45wt% of whitening master batch and 0.0226wt% of a whitening agent, primarily drying for 8-9 hours, adding 0.0019-0.0023wt% of gram flour, continuously drying for 2-3 hours, feeding into a screw extruder for melt spinning, then winding, dropping into a bucket, balancing, bounding, feeding into a post processing system for oil bath drafting, steam drafting, coiling, relaxation heat setting, and cutting, thereby obtaining the extra white regenerated polyester short fiber. Compared with a conventional market product, the extra white regenerated polyester short fiber is prepared from a bubble material which accounts for 50-55wt% of the raw materials and is prepared from industrial polyester waste wires in manners of washing and aggregation, so that the investment cost is low, and the prepared fiber is high in whiteness and excellent in property and has practical popularization significance.
Description
Technical field
The present invention relates to non-woven and wollen fabrics field, be specifically related to the preparation method of a kind of extra white Regenerated Polyester Staple Fiber dimension.
Background technology
From ancient times to the present, clothing and household textiles are always the demand that the mankind are most basic.And in numerous clothing and family's textile, terylene
Product is with its good wrinkle resistance and the advantage such as shape-retaining ability, quick-drying washable and good well-flushing truck, by the green grass or young crops of more consumers
Look at.Therefore, requisite raw materials for production during polyester staple fiber becomes clothing and household textiles production.And in recent years,
Along with developing rapidly of CHINESE INDUSTRIES textile, a new technique " non-weaving cloth " is appeared vividly and is flooded the market.Non-weaving cloth be with
Presented in fiber in cloth, therefore there is certain selectivity for directly affecting the fibrous raw material of its performance.Terylene short fiber
Dimension occupies one with advantages such as its higher intensity, good wearability, dimensional stabilitys.
For meeting the market demand further, or improve the deficiency of existing product or the mesh such as multiple performance products or research and development new product is provided
, the production of polyester staple fiber needs to constantly update technological improvement technique, has the dacron product of different qualities with preparation.Such as,
A kind of special non-weaving cloth of luxury goods liner is meeting while outward appearance high whiteness requires, also should have smooth wide, firm wear-resisting,
The feature such as it is unlikely to deform.Therefore, further requirement fibrous raw material used by it must have higher whiteness, meets other each simultaneously
Item performance requirement.And in the production of the polyester staple fiber coexisted with premium properties index in existing high whiteness, or directly select cleaning
Raw material, or add each analog assistant to reach requirement effect.
The call to recycling economy Yu sustainable development of the response society, effectively utilizes waste and old fibre both can solve the problem of environmental pollution caused,
Limited resource can also be made to obtain the chance reused.The applicant carries out recycling aspect for specific waste and old fibre
Further investigate, manufactured goods excellent performance, be the technical innovation of PET production.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of extra white Regenerated Polyester Staple Fiber dimension, its raw material more than 50% uses the work of recovery
Directly applying to after industry polyester waste silks, more cleaned, granule produce, its prepared fiber has the highest whiteness, and other
Properties is the most excellent.Compared with the product of existing market, this product input cost is low, and production process does not manufacture pollution, poly-
The recovery of ester waste silk alleviates environmental pressure, has practical popularization significance.
For achieving the above object, the present invention adopts the following technical scheme that
The preparation method of a kind of extra white Regenerated Polyester Staple Fiber dimension, comprises the steps:
1. by 50wt%-55wt% chemical fibre foam material, 44.53wt%-49.53wt% waste polyester bottle chip, 0.45wt% brightening mother particle,
After 0.0226wt% brightening agent puts into vacuum drum drying system preliminarily dried 8-9h, add 0.019wt ‰-0.023wt ‰ blue
Powder continues drying out 2-3h as toning auxiliary agent, treat auxiliary agent stir, raw material mixing be dried fully after, feed melt spinning
The screw extruder of system carries out melt spinning, and the most rolled stage preorientation obtains the undrawn yarn with certain characteristic；
2. by above-mentioned undrawn yarn through fall bucket collect, balance after, boundling send into post-treatment system carry out oil bath drawing-off, steam drafting, curling,
Relaxation heat setting and cut-out, prepare extra white Regenerated Polyester Staple Fiber dimension.
Further, described chemical fibre foam material is that waste and old semi-dull long filament granule prepares, and this chemical fibre foam material intrinsic viscosity described is
0.7-0.75dl/g, fusing point is 258-265 DEG C, and this polyester bottle slice intrinsic viscosity is 0.75-0.8dl/g, and fusing point is 255-258
℃。
Further, described melt spinning section screw extruder the 3rd district, the 4th district select higher temperature as far as possible, but meet raw material simultaneously and melt
Melt-viscosity drops within 10%, and the cold drawn multiplying power of undrawn yarn is between 2.9-2.95.The application the preferably the 3rd district, the 4th district's temperature set
It it is 308 DEG C.
Further, described blue powder addition 0.021wt ‰.
Further, after described preliminarily dried 8h, add blue powder and continue drying out 3h, to described moisture content of raw material ＜ 80PPM.
Further, the baking temperature of described vacuum drum drying system is 145 DEG C, steam pressure 0.45Mpa, and vacuum is-0.096Mpa.
Further, described winding speed is adjusted according to finished silk fiber number, and winding portion oil formula is: tow smooth agent 10-12kg,
Antistatic additive 10-12kg, water 2000kg, then carry out fall silk, balance, and described equilibration time is 10h.
Further, described drawing-off general times is 3.5, and oil bath drafting multiple is 2.9, and described oil bath drawing temperature controls as 70-75 DEG C,
Steam drafting multiple is 1.3, and described steam drafting temperature controls as 110-120 DEG C.
Further, described oil bath drawing-off oil formula is tow smooth agent 50-60kg, antistatic additive 50-60kg, softening agent 50-60kg,
Hydrophilizing agent 50-60kg, water 2000kg.
Further, the described the highest control of relaxation heat setting temperature is 150 DEG C；The described relaxation heat setting time is 20-25min.
After using technique scheme, there is advantages that
Because reclaiming industrial polyester waste silk inferior quality, part is containing a small amount of oil stain and spot, and its indices is uneven, therefore adopts
Take following measures to evade:
1. chemical fibre foam material is the chemical fibre reclaimed materials produced in spinning process, and owing to its stability is relatively poor, typically it is as former
The ratio of material formula is less than 20wt%, otherwise affects the stability of finished product color and luster, product quality heterogeneity.The present invention uses chemical fibre
Its consumption can be controlled in the range of 50wt%-55wt% by foam material as raw material.The raw material making foam material owing to selecting is useless
Old semi-dull long filament, the most notable for adjusting the effect of fiber color whiteness.
2., due to unstable as physical indexs such as the foam material melt viscosity of raw material, fusing points, and along with the increase of foam material proportioning, become
Product properties is decreased obviously.By adjusting spinning temperature, within controlling viscosity drop 10%, the most cold drawn multiplying power can reach
2.9-2.95, is the premise of the finished fiber high fracture strength of acquisition.In rear road drafting process, drafting multiple is rationally set, with full
Foot polyester staple fiber indices needs.
Raw materials for production 50wt%-55wt% the most of the present invention is the chemical fibre foam material that industrial polyester waste silk granule prepares.Owing to this waste silk is at granule
Front cleaning treatment during without cleaning additive, therefore gained foam material uneven color, part granule dry after color inclined
Yellow.For preventing finished color to turn to be yellow, the present invention adds 0.45wt% brightening mother particle in process of production.It is experimentally confirmed that when brightening
When master batch content is more than 0.45wt%, the degraded of raw materials melt spinning phase is serious, prepares finished product fault many.When brightening mother particle content
During less than 0.45wt%, whitening effect is inconspicuous, and batch aberration is difficult to evade.
4. being restricted because of brightening mother particle consumption, product whiteness is difficult to promote further, and therefore the present invention adds in process of production
0.0226wt% brightening agent, it is therefore intended that eliminate gold-tinted, improves finished product whiteness.Through test of many times, when brightening agent addition is less than
During 0.0226wt%, improved whiteness DeGrain；When brightening agent addition is more than 0.0226wt%, its whitening effect is without significantly
Change.And because of the particular/special requirement of final products, raw material increases the blue powder of 0.019wt ‰-0.023wt ‰ as toning auxiliary agent, one-tenth
Product overall whiteness is high, and uniform color, good luster.It is demonstrated experimentally that when blue powder addition is more than 0.023wt ‰, finished product face
Colour band blueness gloss；When blue powder addition is less than 0.019wt ‰, finished product whiteness is inadequate, all cannot meet finished product requirement.Cause
This controls blue powder addition is 0.019wt ‰-0.023wt ‰, and finished product whiteness is high, good luster.For being further ensured that quality, control
Manufactured goods colour stable, preferably blue powder addition 0.021wt ‰ of the present invention.
5. for protecting dried moisture content of raw material ＜ 80PPM, and not wasting the too many time, the present invention adds up to 11-12h limited drying time
I.e. can reach and require effect.For guaranteeing that blue powder does not affects trace assistant performance obvious effect because crossing drying time for a long time, and require face
The color coloring effect that stirs is good, the preferred 8h of initial drying time of the present invention, adds blue powder afterwards and continues drying out 3h.
Detailed description of the invention
In order to technical scheme is explained further, below by specific embodiment, the present invention will be described in detail.
Embodiment one
The preparation method of a kind of extra white Regenerated Polyester Staple Fiber dimension of the present invention, is achieved by the steps of and (regenerates with 2.5D*64mm extra white
As a example by polyester staple fiber):
1, spinning material uses 1155.00kg chemical fibre foam material, 1045.00kg waste polyester bottle chip, brightening mother particle 10kg, brightening agent
500g, mix colours the auxiliary agent preferred 4.6g of orchid powder.Described polyester bottle slice intrinsic viscosity is 0.75-0.8dl/g, and fusing point is 255-258 DEG C；
Chemical fibre foam material intrinsic viscosity is 0.70-0.75dl/g, and fusing point is 258-265 DEG C.
2, above-mentioned spinning material being sufficiently mixed through vacuum drum drying system and is dried, wherein baking temperature is 145 DEG C, steam pressure
0.45Mpa, vacuum is-0.096Mpa, and drying time adds 4.6g orchid powder after 8h, continues drying out 3h, to described raw material
Moisture ＜ 80PPM.
3, the screw extruder of above-mentioned dried spinning material feeding melt spinning system is carried out melt spinning.Described melt spinning spiral shell
Bar seven district temperature is set to 288 DEG C, 295 DEG C, 308 DEG C, 308 DEG C, 303 DEG C, 303 DEG C, 270 DEG C, melt spinning spinneret
Selecting 1800 holes, the rotating speed of dosing pump arranges 22r/min.
4, being wound by the as-spun fibre of above-mentioned gained, described winding speed is set to 1100m/min.Winding portion oil formula is silk
Bundle smooth agent 10kg, antistatic additive 10kg, water 2000kg.Then this undrawn yarn is carried out fall silk, balance, when controlling balance
Between be 12h.
5, the undrawn yarn after balance being sent into after boundling post-treatment system and carry out drawing-off, drawing-off general times is 3.5 according to controlling.Wherein
Oil bath drafting multiple is 2.9, and it is 75 DEG C that temperature controls, steam drafting multiple 1.3, and it is 110 DEG C that temperature controls.
6, in above-mentioned steps 5, winding portion oil formula is tow smooth agent 50kg, antistatic additive 50kg, softening agent 50kg, hydrophilic
Agent 50kg, water 2000kg.
7, being crimped and relaxation heat setting by the above-mentioned fiber through drawing-off, three the district's temperature controls of described relaxation heat setting are: dry
120-150 DEG C of district, it is 150 DEG C that heat setting temperature controls, cooling zone temperature 120 DEG C and following, and the relaxation heat setting time is 22min.
Again through cutting off, length controls to be 51mm, then packs.
Embodiment two
The blue powder addition of step 1 is 5.1g, and remaining is with embodiment one.
Embodiment three
The blue powder addition of step 1 is 4.2g, and remaining is with embodiment one.
Comparative example one
The blue powder addition of step 1 is 5.6g, and remaining is with embodiment one.
Comparative example two
The blue powder addition of step 1 is 3.8g, and remaining is with embodiment one.
Comparative example three
Step 1 raw material adds blue powder after tentatively drying 8h, persistently dry 4h, and remaining is with embodiment one
Comparative example four
Step 2 raw material adds blue powder after tentatively drying 9h, persistently dry 2h, and remaining is with embodiment one
Above-mentioned obtained polyester staple fiber is carried out performance test, and data are as shown in the table:
Above-described embodiment the product form of the non-limiting present invention and style, it is done by any person of an ordinary skill in the technical field
Suitably change or modify, all should be regarded as the patent category without departing from the present invention.
Claims (7)
1. the preparation method of an extra white Regenerated Polyester Staple Fiber dimension, it is characterised in that comprise the steps:
1. by 50wt%-55wt% chemical fibre foam material, 44.53wt%-49.53wt% waste polyester bottle chip, 0.45wt% brightening mother particle,
After 0.0226wt% brightening agent puts into vacuum drum drying system preliminarily dried 8-9h, add 0.019wt ‰-0.023wt ‰ blue
Powder continues drying out 2-3h as toning auxiliary agent, treat auxiliary agent stir, raw material mixing be dried fully after, feed melt spinning
The screw extruder of system carries out melt spinning, and the most rolled stage preorientation obtains undrawn yarn；
2. by above-mentioned undrawn yarn through fall bucket collect, balance after, boundling send into post-treatment system carry out oil bath drawing-off, steam drafting,
Curling, relaxation heat setting and cut-out, prepare extra white Regenerated Polyester Staple Fiber dimension.
2. the preparation method of extra white Regenerated Polyester Staple Fiber dimension as claimed in claim 1, it is characterised in that described chemical fibre foam material
Preparing for waste and old semi-dull long filament granule, this chemical fibre foam material intrinsic viscosity is 0.7-0.75dl/g, and fusing point is 258-265 DEG C；
Described polyester bottle slice intrinsic viscosity is 0.75-0.8dl/g, and fusing point is 255-258 DEG C.
3. the preparation method of extra white Regenerated Polyester Staple Fiber dimension as claimed in claim 2, it is characterised in that described melt spinning spiral shell
Bar extruder the 3rd district, the 4th district's temperature are set to 308 DEG C, spinning material melt viscosity fall≤10%.
4. the preparation method of extra white Regenerated Polyester Staple Fiber dimension as claimed in claim 3, it is characterised in that described undrawn yarn cold
Drawing multiplying power is 2.9-2.95.
5. the preparation method of extra white Regenerated Polyester Staple Fiber dimension as claimed in claim 4, it is characterised in that described oil bath drawing-off times
Number is 2.9, and oil bath drawing temperature controls as 70-75 DEG C；Described steam drafting multiple is 1.3, and drawing temperature controls as 110-120
℃。
6. the preparation method of extra white Regenerated Polyester Staple Fiber dimension as claimed in claim 1, it is characterised in that described blue powder addition
For 0.021wt ‰.
7. the preparation method of extra white Regenerated Polyester Staple Fiber dimension as claimed in claim 1, it is characterised in that described preliminarily dried
After 8h, add blue powder and continue drying out 3h, to described moisture content of raw material ＜ 80PPM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482666.4A CN105887233A (en) | 2016-06-27 | 2016-06-27 | Method for preparing extra white regenerated polyester short fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482666.4A CN105887233A (en) | 2016-06-27 | 2016-06-27 | Method for preparing extra white regenerated polyester short fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105887233A true CN105887233A (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610482666.4A Pending CN105887233A (en) | 2016-06-27 | 2016-06-27 | Method for preparing extra white regenerated polyester short fiber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642581A (en) * | 2018-04-25 | 2018-10-12 | 山东齐鲁化纺有限公司 | Long and short fiber technique in a kind of waste silk raw material production high-strength flatness of extra white |
| CN109234823A (en) * | 2018-09-19 | 2019-01-18 | 扬州天富龙汽车内饰纤维有限公司 | A kind of method of recycled polyester material spinning 8-shaped hollow core staple fibers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144211A (en) * | 2004-09-07 | 2006-06-08 | Kaneka Corp | Flame-retardant polyester-based artificial hair |
| CN101187084A (en) * | 2007-11-30 | 2008-05-28 | 东华大学 | Antibacterial fine diner silicon-containing polyester staple fiber and method for making same |
| CN102828276A (en) * | 2012-09-04 | 2012-12-19 | 福建鑫华股份有限公司 | Preparation method of biodegradable regenerated polyester staple fibers |
| CN102936758A (en) * | 2012-10-25 | 2013-02-20 | 宁波大发化纤有限公司 | Whitened regenerated terylene staple fiber |
-
2016
- 2016-06-27 CN CN201610482666.4A patent/CN105887233A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144211A (en) * | 2004-09-07 | 2006-06-08 | Kaneka Corp | Flame-retardant polyester-based artificial hair |
| CN101187084A (en) * | 2007-11-30 | 2008-05-28 | 东华大学 | Antibacterial fine diner silicon-containing polyester staple fiber and method for making same |
| CN102828276A (en) * | 2012-09-04 | 2012-12-19 | 福建鑫华股份有限公司 | Preparation method of biodegradable regenerated polyester staple fibers |
| CN102936758A (en) * | 2012-10-25 | 2013-02-20 | 宁波大发化纤有限公司 | Whitened regenerated terylene staple fiber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642581A (en) * | 2018-04-25 | 2018-10-12 | 山东齐鲁化纺有限公司 | Long and short fiber technique in a kind of waste silk raw material production high-strength flatness of extra white |
| CN109234823A (en) * | 2018-09-19 | 2019-01-18 | 扬州天富龙汽车内饰纤维有限公司 | A kind of method of recycled polyester material spinning 8-shaped hollow core staple fibers |
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