CN105538640B - A kind of waste and old polyester bottle production plastic woven bag, the method for container bag flat filament - Google Patents
A kind of waste and old polyester bottle production plastic woven bag, the method for container bag flat filament Download PDFInfo
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- CN105538640B CN105538640B CN201510909192.2A CN201510909192A CN105538640B CN 105538640 B CN105538640 B CN 105538640B CN 201510909192 A CN201510909192 A CN 201510909192A CN 105538640 B CN105538640 B CN 105538640B
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- waste
- flat filament
- old polyester
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- 229920000728 polyester Polymers 0.000 title claims abstract description 34
- 239000002699 waste material Substances 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 title claims abstract description 23
- 239000004033 plastic Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- -1 tackifier Substances 0.000 claims abstract description 19
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 229910052747 lanthanoid Inorganic materials 0.000 claims abstract description 11
- 239000004067 bulking agent Substances 0.000 claims abstract description 8
- 239000004595 color masterbatch Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 8
- 230000014759 maintenance of location Effects 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 20
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 19
- 239000000654 additive Substances 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 10
- 229920001223 polyethylene glycol Polymers 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229920002799 BoPET Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 150000002602 lanthanoids Chemical class 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 230000005587 bubbling Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004698 Polyethylene Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Artificial Filaments (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The present invention relates to a kind of waste and old polyester bottle production plastic woven bag, the methods of container bag flat filament, extruder will be added in after dry or pre-crystallized waste and old polyester bottle is mixed with bulking agent, antioxidant, tackifier, filler, color masterbatch, lanthanide metal compound and auxiliary agent, extruded, filtering, metering, die head are cast to chill roll cooling, obtain diaphragm；With respect to pull-off force（N/tex）≥0.58；Elongation (%)：16.5‑21.4；More than 26 oxygen index (OI), line density（tex）Up to 71.6 153.7；144 hours tensile strength retentions are 93.3% 93.8%；The strength retention ratio 97.1% 97.5% of 144h is placed at 35 DEG C；140 DEG C, 2h, 10cm flat filament shrinking percentage be 0；Layer of ink binding strength is 92% 99%.
Description
Technical field
The present invention relates to a kind of flat filament more particularly to a kind of waste and old polyester bottle production plastic woven bag, the sides of container bag flat filament
Method belongs to processing of high molecular material technical field.
Background technology
At present plastic woven bag, container bag be with polypropylene (PP) or polyethylene (PE) for primary raw material, it is extruded, be drawn into it is flat
Silk, then formed through weaving, bag making, it is widely used in the powderies such as food, Cereals, medicine, chemical industry, mineral products, particle, block article
Transportation and packing, flourishing country generally use packaging product of the container bag as transport, storage.
PP or PE Polywoven Bags or container bag are poor with flat filament tension intensity at present, and anti ageing property is poor, this Flat plastic
The wire drawing unit of silk can not also use other resin and plastic raw materials production woven bag, container bag flat filament, now both at home and abroad to place
Just the demand of product is growing day by day, and therefore, to do raw material with other resins flat to produce all exploring by the scientific and technical personnel of this field
Silk, on the one hand improves the intensity of flat filament, and another aspect can reduce production cost.Mechanical property, uvioresistant performance, the weatherability of PET
It can wait and all go with PE than PP, in addition to this PET raw material sources are extensive, and profit is also repeated after recycling discarded PET bottle material fragmentation
With, therefore PET has huge potential utility value for plastic flat fiber production.
But PET glass transition temperatures are higher, and phenyl ring is contained in strand, rigidity is strong, resets movement slowly, leads to it
Crystalline rate is relatively low, and high temperature chance water electrode is degradable, therefore the mode of production extrusion-curtain coating-water cooling forms a film-for continuing to use PP, PE splits film
Sub-wire-heating stretching-sizing-curling cannot obtain flat filament, and there are no suitable PET Flat Yarn Productions equipment so far.
Invention content
The technical problem to be solved by the present invention is to deficiencies more than being directed to, and provide a kind of waste and old polyester bottle production plastic woven bag, collection
The method of pack flat filament, overcome in the prior art PET woven bags, container bag flat filament tensile strength, elongation at break it is low and
The deficiency that yielding after stretching, flat filament hardens using more than production method, can realize following purpose：
1st, tensile strength is high.
2nd, strength retention is high under ultraviolet irradiation and cryogenic conditions, reaches more than 90%, and weatherability, ageing resistance are good, uses
Long lifespan.
3rd, the flat filament transparency is good, and printing effect is excellent.
4th, raw material are obtained by waste PET plastic bottle, environment friendly and pollution-free.
5th, there is excellent self-extinguishment, burning does not generate noxious material pollution environment.
7th, flat filament is not shunk substantially under 100 DEG C of high temperature, have extremely excellent dimensional stability, can bear industrial chemicals,
The high-temperature filling of feed etc..
8th, good toughness, antiwear property is strong, is not easy sub-wire, splits silk, fluffing.
9th, line density is high.
In order to solve the above technical problems, the practical institute's technical solution that uses of the present invention for：A kind of waste and old polyester bottle production modeling is compiled
The method of bag, container bag flat filament, which is characterized in that including squeezing out casting film step：
It will be through dry or pre-crystallized waste and old polyester bottle and bulking agent, antioxidant, tackifier, filler, color masterbatch, group of the lanthanides
Extruder is added in after metallic compound and auxiliary agent mixing, extruded, filtering, metering, die head are cast to chill roll cooling, obtain film
Piece；
Waste and old polyester bottle and the weight ratio of bulking agent, antioxidant, tackifier, filler, color masterbatch are 80-85:5:2:2:
4-8:2-3。
A kind of prioritization scheme, the weight of lanthanide metal compound middle rare earth metallic element are 0.08wt%~0.5wt%, base
In the weight meter of waste and old polyester bottle used.
Further, auxiliary agent includes using the coated titanium dioxide of polypropylene, copper chloride and polyethylene glycol respectively；
The additive amount of titanium dioxide is 0.02wt%-0.2wt%；
The additive amount of copper chloride is 0.02wt%-0.2wt%；
The additive amount of polyethylene glycol is 0.02wt%-0.2wt%；
Above in terms of the weight of waste and old polyester bottle used.
Further, it further includes：
Crush cleaning step：Waste and old polyester plastics bottle and bottle cap are subjected to the sheet stock that cutting and grinding are diameter 12mm-14mm,
Again clean sheet stock is obtained through clear water hot wash, dehydration；
Crystallizing and drying：Raw material is sent into roll in crystallizing and drying device through feeder and be stirred, by heating medium for heating to 140 DEG C -180
DEG C crystallizing and drying 4-6 hours, and continuously vacuumized using vacuum pump, vacuum degree is 0.8mPa-0.95mPa in holding meanss, is made
Raw material drying is less than or equal to 30 μ g/g to water content.
Further, further include diaphragm preheating, stretch, sub-wire redraw step：
By diaphragm it is preheated, stretching, sub-wire, redraw, thermal finalization, that even width, intensity are obtained after cooling step is high, tough
The good flat filament of property.
Further, it crushes in cleaning step：It is clear with reference to ultrasonic cleaning+spray using Full-automatic ultrasonic cleaner
Wash+hot water embathes the+multiple cleaning way of pressure pulse cleaning, wherein ultrasonic frequency is 20~50kHz, ultrasonic treatment time 1
~3 minutes, 80 DEG C -95 DEG C of hot water water temperature, bubbling medium used air bubbling.
Further, in crystallizing and drying step：Drying device is dried for vacuum drum, and heating agent is conduction oil.
Further, it squeezes out in casting film：Extrusion temperature cools down roller diameter 800mm, chill roll cooling temperature at 255-280 DEG C
Degree is at 20~28 DEG C.
Further, during diaphragm preheating, stretching, sub-wire are redrawn：Diaphragm preheating method passes through and one group of preheating for PET film piece
Roller be in contact from 60 DEG C step by step gradient be incremented to 90 DEG C, pre- hot-rolling is one group of steel rider and coated ceramic roller, top-bottom cross arrangement；
Stretching mode is diaphragm one-off drawing and flat filament succeeding stretch, and diaphragm one-off drawing is 1.5~2.5 times, heating temperature
It is 90~130 DEG C to spend, and flat filament succeeding stretch is 1.5~3 times, and heating temperature is 150~180 DEG C；
Thermal finalization is heated using drying-plate, and heating temperature is 180~230 DEG C.
Further, the line density of PET flat filaments（tex）：71.6-153.7；With respect to pull-off force（N/tex）≥0.58；Elongation
Rate (%)：16.5-21.4；144 hours tensile strength retentions are 93.3%-93.8%；The intensity that 144h is placed at -35 DEG C retains
Rate 97.1%-97.5%；140 DEG C, 2h, 10cm flat filament shrinking percentage be 0；Layer of ink binding strength is 92%-99%；Oxygen index (OI) is 26.9-
27.3。
The present invention compared with prior art, is had the following advantages using above technical scheme：Through chilling roller film forming, diaphragm
It stretching, after flat filament drawing process so that drawing process is smoothed out, the problem of avoiding the easy fracture of wire of PET flat filaments in drawing process,
The PET flat filaments of production are in mechanical property, ageing resistance, lower temperature resistance, heat resistance, oxygen index (OI), layer of ink binding strength, wearability
It greatly improves, with respect to pull-off force（N/tex）≥0.58；Elongation (%)：16.5-21.4；More than 26 oxygen index (OI), line density（tex）
Up to 71.6-153.7；144 hours tensile strength retentions are 93.3%-93.8%；The strength retention ratio of 144h is placed at -35 DEG C
97.1%-97.5%；140 DEG C, 2h, 10cm flat filament shrinking percentage be 0；Layer of ink binding strength is 92%-99%.
The following describes the present invention in detail with reference to examples.
Specific embodiment
It should be appreciated that preferred embodiment described herein is merely to illustrate and explain the present invention, it is not used to limit this
Invention.
Embodiment 1, a kind of waste and old polyester bottle production high intensity, high tenacity plastic woven bag, the method for container bag flat filament, including
Following steps：
（1）Crush cleaning step：Waste and old polyester plastics bottle and bottle cap are subjected to the bottle that cutting and grinding are diameter 12mm-14mm
0.60~0.68dL/g of inherent viscosity of piece, wherein polyester bottle slice, by Full-automatic ultrasonic cleaner, successively by ultrasonic wave
Cleaning, ultrasonic frequency 20kHz, ultrasonic treatment time are 3 minutes, and high pressure cleaning showers, 85 DEG C of hot water embathe, air drum
Tap water cleaning is steeped, obtains clean bottle chips；
（2）Crystallizing and drying：The sheet stock crushed is sent into heating, drying in vacuum drum device through feeder, using heat conduction
Oil be heated to 140 DEG C, crystallizing and drying continuously vacuumized using vacuum pump after 6 hours, make to generate negative pressure in crystallizing and drying device
Pressure is 0.8mPa, extracts the flue dust that moisture contained in raw material is generated with impurity in pyroprocess, reduces moisture
To 30 μ g/g；
（3）Squeeze out casting film step：By 80 parts of waste polyester bottle chip material, 5 parts of bulking agents（AX8900, Arkema）, 2 parts of antioxygens
Agent (CC10008704WE, PolyOne), 2 parts of tackifier（The epoxies tackifier of the self-produced sale of company）, 8 parts of fillers（PET
Dedicated filling mother stock, TOYO INK Group）, 3 parts of color masterbatch (FG-010-1802, Astra Polymers), lanthanide series metals
Compound and auxiliary agent mixing, add in extruder 1, and extruder temperature is 275 DEG C, through fondant filter, metering pump to die head, and from
It is squeezed out in the narrow slit of die head, is cast to 28 DEG C, quenching forms diaphragm on the chilling roller 2 of diameter 800mm.
The weight of lanthanide metal compound middle rare earth metallic element is 0.08wt%；Auxiliary agent includes being coated with polypropylene respectively
Titanium dioxide, copper chloride and polyethylene glycol；The additive amount of titanium dioxide is 0.2wt%；The additive amount of copper chloride is
0.02wt%；The additive amount of polyethylene glycol is 0.02wt%；Above in terms of the weight of waste and old polyester bottle used.
（4）Diaphragm preheating, stretching, sub-wire redraw step：
PET film piece after cooling enters device, and steel rider and coated ceramic roller through being arranged with one group of top-bottom cross are from 60 DEG C
Gradient is incremented to 90 DEG C step by step, and using one group of 110 DEG C of draw roll, diaphragm stretches 1.5 times, and the diaphragm after stretching is filled by sub-wire
It puts to obtain width 2.54mm flat filaments, by 2 times of heated oven succeeding stretch, flat filament stretches to be added flat filament under draft gear, effect
Hot temperature is 160 DEG C, then it is flat to obtain high intensity, high tenacity by 220 DEG C of drying-plate heating unit by draft gear effect
Silk, final rolling machine winding, obtains PET flat filaments.
Realize the device of waste and old polyester bottle production plastic woven bag, container bag flat filament method, including extruder connected in sequence,
Chilling roller, diaphragm are indulged withdrawing roll, sub-wire device, the first draft gear of flat filament, heated oven, the second draft gear of flat filament, drying-plate and are added
Thermal, flat filament third draft gear, winder.
Embodiment 2, a kind of waste and old polyester bottle production high intensity, high tenacity plastic woven bag, the method for container bag flat filament, including
Following steps：
（1）Crush cleaning step：Waste and old polyester plastics bottle and bottle cap are subjected to the bottle that cutting and grinding are diameter 12mm-14mm
0.60~0.68dL/g of inherent viscosity of piece, wherein polyester bottle slice, by Full-automatic ultrasonic cleaner, successively by ultrasonic wave
Cleaning, ultrasonic frequency 40kHz, ultrasonic treatment time are 2 minutes, and high pressure cleaning showers, 95 DEG C of hot water embathe, air drum
Tap water cleaning is steeped, obtains clean bottle chips；
（2）Crystallizing and drying：The sheet stock crushed is sent into heating, drying in vacuum drum device through feeder, using heat conduction
Oil be heated to 160 DEG C, crystallizing and drying continuously vacuumized using vacuum pump after 4 hours, make to generate negative pressure in crystallizing and drying device
Pressure is 0.86mPa, extracts the flue dust that moisture contained in raw material is generated with impurity in pyroprocess, reduces moisture
To 30 μ g/g；
（3）Squeeze out casting film step：By 85 parts of waste polyester bottle chip material, 5 parts of bulking agents（AX8900, Arkema）, 2 parts of antioxygens
Agent (CC10008704WE, PolyOne), 2 parts of tackifier（The epoxies tackifier of the self-produced sale of company）, 4 parts of fillers（PET
Dedicated filling mother stock, TOYO INK Group）And 2 parts of color masterbatches (FG-010-1802, Astra Polymers), group of the lanthanides gold
Belonging to compound and auxiliary agent mixing, add in extruder, extruder temperature is 280 DEG C, through fondant filter, metering pump to die head, and
It is squeezed out from the narrow slit of die head, is cast to 26 DEG C, quenching forms diaphragm on the chilling roller of diameter 800mm.
The weight of lanthanide metal compound middle rare earth metallic element is 0.22wt%；Auxiliary agent includes being coated with polypropylene respectively
Titanium dioxide, copper chloride and polyethylene glycol；The additive amount of titanium dioxide is 0.02wt%；The additive amount of copper chloride is
0.2wt%；The additive amount of polyethylene glycol is 0.2wt%；Above in terms of the weight of waste and old polyester bottle used.
（4）Diaphragm preheating, stretching, sub-wire redraw step：
PET film piece after cooling enters device, and steel rider and coated ceramic roller through being arranged with one group of top-bottom cross are from 60 DEG C
Gradient is incremented to 90 DEG C step by step, and using one group of 110 DEG C of draw roll, diaphragm stretches 1.8 times, and the diaphragm after stretching is filled by sub-wire
It puts to obtain width 2.54mm flat filaments, flat filament is stretched through 2.3 times of heated oven succeeding stretch, flat filament under draft gear, effect
Heating temperature is 150 DEG C, then it is flat to obtain high intensity, high tenacity by 230 DEG C of drying-plate heating unit by draft gear effect
Silk, final rolling machine wind to obtain PET flat filaments.
Embodiment 3, a kind of waste and old polyester bottle production high intensity, high tenacity plastic woven bag, the method for container bag flat filament, packet
Include following steps：
（1）Crush cleaning step：Waste and old polyester plastics bottle and bottle cap are subjected to the bottle that cutting and grinding are diameter 12mm-14mm
0.60~0.68dL/g of inherent viscosity of piece, wherein polyester bottle slice, by Full-automatic ultrasonic cleaner, successively by ultrasonic wave
Cleaning, ultrasonic frequency 50kHz, ultrasonic treatment time are 1 minute, and high pressure cleaning showers, 90 DEG C of hot water embathe, air drum
Tap water cleaning is steeped, obtains clean bottle chips；
（2）Crystallizing and drying：The sheet stock crushed is sent into heating, drying in vacuum drum device through feeder, using heat conduction
Oil is heated to 180 DEG C, crystallizing and drying is after 3 hours, is during which continuously vacuumized with vacuum pump, makes to generate negative pressure in crystallizing and drying device
Pressure is 0.8mPa, extracts the flue dust that moisture contained in raw material is generated with impurity in pyroprocess, reduces moisture
To 30 μ g/g；
（3）Squeeze out casting film step：By 83 parts of waste polyester bottle chip material, 5 parts of bulking agents（AX8900, Arkema）, 2 parts of antioxygens
Agent (CC10008704WE, PolyOne), 2 parts of tackifier（The epoxies tackifier of the self-produced sale of company）, 5 parts of fillers（PET
Dedicated filling mother stock, TOYO INK Group）And 3 parts of color masterbatches (FG-010-1802, Astra Polymers), group of the lanthanides gold
Belonging to compound and auxiliary agent mixing, add in extruder, extruder temperature is 275 DEG C, through fondant filter, metering pump to die head, and
It is squeezed out from the narrow slit of die head, is cast to 28 DEG C, quenching forms diaphragm on the chilling roller of diameter 800mm.
The weight of lanthanide metal compound middle rare earth metallic element is 0.5wt%；Auxiliary agent includes being coated with polypropylene respectively
Titanium dioxide, copper chloride and polyethylene glycol；The additive amount of titanium dioxide is 0.12wt%；The additive amount of copper chloride is
0.12wt%；The additive amount of polyethylene glycol is 0.12wt%；Above in terms of the weight of waste and old polyester bottle used.
（4）Diaphragm preheating, stretching, sub-wire redraw step：
PET film piece after cooling enters device, and steel rider and coated ceramic roller through being arranged with one group of top-bottom cross are from 60 DEG C
Gradient is incremented to 90 DEG C step by step, and using one group of 110 DEG C of draw roll, diaphragm stretches 1.5 times, and the diaphragm after stretching is filled by sub-wire
It puts to obtain width 2.54mm flat filaments, by 2 times of heated oven succeeding stretch, flat filament stretches to be added flat filament under draft gear, effect
Hot temperature is 160 DEG C, then it is flat to obtain high intensity, high tenacity by 220 DEG C of drying-plate heating unit by draft gear effect
Silk, final rolling machine wind to obtain PET flat filaments.
Material referred to above is commercially available product；Unless specifically indicated, percentage refers to weight percent
Than.
PET flat filament mechanical property is carried out according to GB/T 8946, GB/T10454, GB/T 2406, GB/T7707, GBT 3960
Energy, ageing resistance, lower temperature resistance, heat resistance, oxygen index (OI), layer of ink binding strength, wearability test, and compared with PP, PE flat filament,
Testing result is as shown in table 1.
Table 1：The mechanical property of plastic flat fiber
Table 2：The anti-aging property of flat filament
Table 3：The resistance to low temperature of flat filament
Table 4：The heat resistance of plastic flat fiber
The oxygen index (OI) of 5 plastic flat fiber of table, color fastness test
6 wear-resisting property test result of table
The mechanical property of flat filament obtained by the embodiment of the present invention, ageing resistance, low temperature resistant is can be seen that from above five tables
Property, heat resistance, oxygen index (OI), layer of ink binding strength, wearability indices have than current common PE, PP flat filament it is significant excellent
Gesture.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (1)
1. a kind of waste and old polyester bottle production plastic woven bag, the method for container bag flat filament, which is characterized in that including squeezing out casting film step
Suddenly：
It will be through dry or pre-crystallized waste and old polyester bottle and bulking agent, antioxidant, tackifier, filler, color masterbatch, lanthanide series metal
Extruder is added in after compound and auxiliary agent mixing, extruded, filtering, metering, die head are cast to chill roll cooling, obtain diaphragm；
Waste and old polyester bottle and the weight ratio of bulking agent, antioxidant, tackifier, filler, color masterbatch are 80-85:5:2:2:4-8:
2-3；
The weight of lanthanide metal compound middle rare earth metallic element is 0.08wt%~0.5wt%, based on waste and old polyester bottle used
Weight meter；
Auxiliary agent includes using the coated titanium dioxide of polypropylene, copper chloride and polyethylene glycol respectively；
The additive amount of titanium dioxide is 0.02wt%-0.2wt%；
The additive amount of copper chloride is 0.02wt%-0.2wt%；
The additive amount of polyethylene glycol is 0.02wt%-0.2wt%；
Above in terms of the weight of waste and old polyester bottle used；
It further includes：
Crush cleaning step：Waste and old polyester plastics bottle and bottle cap are subjected to cutting and grinding and are the sheet stock of diameter 12mm-14mm, then is passed through
Clear water hot wash, dehydration obtain clean sheet stock；
Crystallizing and drying：Raw material is sent into roll in crystallizing and drying device through feeder and be stirred, by heating medium for heating to 140 DEG C of -180 DEG C of knots
Crystalline substance is 3-6 hours dry, and is continuously vacuumized using vacuum pump, and vacuum degree is 0.8Mpa-0.95MPa in holding meanss, makes raw material
Water content is dried to less than or equal to 30 μ g/g；
It further includes diaphragm preheating, stretching, sub-wire, redraw step：
By diaphragm it is preheated, stretching, sub-wire, redraw, thermal finalization, obtain that even width, intensity is high, good toughness after cooling step
Flat filament；
It crushes in cleaning step：Using Full-automatic ultrasonic cleaner, with reference to ultrasonic cleaning+cleaning showers ,+hot water embathes+rouses
Bubble cleans multiple cleaning way, and wherein ultrasonic frequency is 20~50kHz, and ultrasonic treatment time is 1~3 minute, hot water water
80 DEG C -95 DEG C of temperature, bubbling medium use air bubbling；
In crystallizing and drying step：Drying device is dried for vacuum drum, and heating agent is conduction oil；
It squeezes out in casting film：Extrusion temperature cools down roller diameter 800mm, chill roll cooling temperature is at 20~28 DEG C at 255-280 DEG C；
During diaphragm preheating, stretching, sub-wire are redrawn：Diaphragm preheating method is PET film piece through being in contact with one group of pre- hot-rolling from 60
Gradient is incremented to 90 DEG C DEG C step by step, and pre- hot-rolling is one group of steel rider and coated ceramic roller, top-bottom cross arrangement；
Stretching mode is diaphragm one-off drawing and flat filament succeeding stretch, and diaphragm one-off drawing is 1.5~2.5 times, and heating temperature is
90~130 DEG C, flat filament succeeding stretch is 1.5~3 times, and heating temperature is 150~180 DEG C；
Thermal finalization is heated using drying-plate, and heating temperature is 180~230 DEG C；
The line density of PET flat filaments（tex）：71.6-153.7；With respect to pull-off force（N/tex）≥0.58；Elongation (%)：16.5-
21.4；144 hours tensile strength retentions are 93.3%-93.8%；The strength retention ratio 97.1%- of 144h is placed at -35 DEG C
97.5%；140 DEG C, 2h, 10cm flat filament shrinking percentage be 0；Layer of ink binding strength is 92%-99%；Oxygen index (OI) is 26.9-27.3.
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| CN108085854A (en) * | 2017-12-29 | 2018-05-29 | 杭州联成华卓实业有限公司 | Recycle the production technology of terylene and cotton blended fabric |
| CN108166082A (en) * | 2018-02-07 | 2018-06-15 | 常州至能土工材料有限公司 | A kind of method using polyester slice production flat filament |
| CN108973070A (en) * | 2018-09-10 | 2018-12-11 | 巢湖市聚汇遮阳设备科技有限公司 | The solar energy two of sunshade net wire drawing machine leads sub-wire structure |
| CN112609316A (en) * | 2020-12-11 | 2021-04-06 | 山东滨州波涛化纤制品有限公司 | Method for manufacturing fabric by weaving PET cast film and slitting and stretching all-in-one machine |
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| CN104264287B (en) * | 2014-08-07 | 2015-05-20 | 山东滨州波涛化纤制品有限公司 | Method for preparing rope net ribbon-like filaments by drawing waste and old polyethylene terephthalate (PET) bottle sheets |
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