CN104846448B

CN104846448B - The production technology of differential polyester staple fiber is produced using PET bottle piece

Info

Publication number: CN104846448B
Application number: CN201510315573.8A
Authority: CN
Inventors: 石良军; 王志军; 陈现卜; 宋勇; 高战旭
Original assignee: Hebei Jin Yi Chemical Fibre Co Ltd
Current assignee: Hebei Jin Yi Chemical Fibre Co Ltd
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2017-07-04
Anticipated expiration: 2035-06-10
Also published as: CN104846448A

Abstract

The present invention relates to the use of the production technology that PET bottle piece produces differential polyester staple fiber, the production technology is pre-processed including bottle piece, bottle piece spinning winding, drawing-off, nervous thermal finalization, curling, relaxation heat setting, cut-out is finally carried out to pack and check storage, using the heating roller of upper nine times eight cross arrangements in nervous thermal finalization, color proportioning process in bottle piece pretreatment also including bottle piece, when the chopped fiber of clothing and home textile is produced, using blue and white white vase piece, and when the chopped fiber of toy filler is produced, then using the white vase piece of other colors, the chopped fiber soft texture of this production technology production, resilience is good, and comfort level is preferable during the product of human contact's chopped fiber production, the product good market prospect of this production technology.

Description

The production technology of differential polyester staple fiber is produced using PET bottle piece

Technical field

The invention belongs to textile raw material production technical field, and in particular to produce differential terylene using PET bottle piece The production technology of chopped fiber.

Background technology

PET material consumption when the packing containers such as beverage, food and film is made is very big, especially beverage bottle and mineral water The consumption of bottle is annual all in cumulative year after year, and used beverage bottle and mineral water bottle can cause substantial amounts of waste or used plastics, and plastics Natural degradation it is very slow, more suitable for recycle, using waste or used plastics white vase piece production chopped fiber be one kind solve well The method of waste or used plastics pollution, at present, has been preliminarily formed, example using the production technology of waste or used plastics white vase piece production chopped fiber Such as, patent application publication number is patent application-one kind of CN201210556714 using discarded bottle chips production weaving top grade The production technology of core, the chopped fiber resilience of existing production technology production is poor, during as clothes textile raw material, body surface sense Feel not soft, it is uncomfortable when wearing, it is unfavorable for the market public praise of chopped fiber clothing, eventually influence the production of waste or used plastics white vase piece The development of chopped fiber.

The content of the invention

The invention discloses the production technology that differential polyester staple fiber is produced using PET bottle piece, the production technology The chopped fiber resilience of production is preferable, soft texture, and can reclaim waste plastic bottle, to enhancement of environment and the energy that economizes on resources Play critically important effect.

Particular technique content of the invention is：

The production technology of differential polyester staple fiber is produced using PET bottle piece, key point is, described production technology Comprise the following steps：

A, the pretreatment of bottle piece：First bottle tablet raw material is cleaned, is dried with drier after cleaning, then, according to need Colour match is carried out to white vase piece and is mixed；

B, bottle piece spinning：The white vase piece that will first match is dried, and then enters white vase piece feeding double screw extruder Row melt spinning；

C, wind into bucket：, then be wound for the tow after oil spout and finally enter bucket by the oil injection agent on the tow of extrusion；

D, drawing-off：Tow in bucket is carried out into drawing-off；

E, nervous thermal finalization：The tow of drawing-off is sent into tension-setting machine, the heating roller in tension-setting machine is Upper nine times eight and cross arrangement, tow are wound through all heating rollers, and heating roller is heated using steam, all heating rollers Temperature be progressively incremented by according to tandem, maximum temperature be 200 degrees Celsius；

F, curling：The tow of winding is stretched, is then loosened, tow is crimped naturally；

G, relaxation heat setting：Tow is carried out into hot-air seasoning；

H, cut-out packing：Product according to involved by tow is cut off and is carried out to tow to the different demands of size Enter bag packing.

In described step a, white vase piece color proportioning is in the chopped fiber used by production cloth or home textile and its filler Using blue and white white vase piece mixing match, blue white vase piece accounts for 15%~20%, in production Using the white vase piece mixing match of other colors during chopped fiber used by toy filler.

In described step b, white vase piece water content after the drying is less than 100ppm.

In described step b, the operating temperature of double screw extruder is 280~300 degrees Celsius.

In described step c, the speed of spinning winding is 1100~1400m/min.

In described step f, the speed of spinning curling is 200m/min.

In described step g, the temperature of spinning drying hot blast used is 70~80 degrees Celsius.

In described step d, the degree of drawing of tow is 3.3-3.7 times after drawing-off, and elongation is 26%-32%, and fiber number is 1.4-1.5D or 2.5-3D or 1.2-1.33D.

The beneficial effects of the invention are as follows：The chopped fiber produced using waste or used plastics white vase piece is corrosion-resistant, nonhygroscopic, uses the longevity More long, the bottle piece pretreatment stage of production technology is ordered, bottle piece is divided into three major types according to white, blue and other colors, according to institute Produce the purposes of chopped fiber to carry out color proportioning, the waste or used plastics of shades of colour can so fully applied, so that The pollution and waste of certain plastic bottle are avoided, the present invention sets nervous thermal finalization between drawing-off and curling, and is provided with 17 heating rollers are heated to tow so that the heating-up temperature of tow is in gradual rising, it is to avoid because heating roller is few, Heating-up temperature raises the too quickly situation that the tow toughness for causing is not enough, resilience is poor.

Specific embodiment

Utilization PET bottle piece of the present invention produces the production technology of differential polyester staple fiber, production technology bag Include following steps：

A, the pretreatment of bottle piece：First bottle tablet raw material is cleaned, is dried with drier after cleaning, then, according to need Colour match is carried out to white vase piece and is mixed, in the chopped fiber used by production cloth or home textile and its filler using blueness With white white vase piece mixing match, blue white vase piece accounts for 15%~20%, in production toy filling Using the white vase piece mixing match of other colors during chopped fiber used by thing；

B, bottle piece spinning：The white vase piece that will first match is dried, and white vase piece water content after the drying is less than 100ppm, then carries out melt spinning by white vase piece feeding double screw extruder, the operating temperature of double screw extruder for 280~ 300 degrees Celsius；

C, wind into bucket：, then be wound for the tow after oil spout by the oil injection agent on the tow of extrusion, tow winding Speed is 1100~1400m/min, and winding is folded into bucket storage tow disk after finishing；

D, drawing-off：Tow in bucket is carried out into drawing-off, the degree of drawing of tow is 3.3-3.7 times after drawing-off, elongation is 26%-32%, fiber number be 1.4-1.5D or 2.5-3D or 1.2-1.33D, i.e. tow in single fiber be stretched to 3.3-3.7 times Can be broken, and the ratio stretched again in rear spinning process for making is 26%-32%；

E, nervous thermal finalization：Tow after drawing-off is sent into tension-setting machine, the heating roller in tension-setting machine It is upper nine times eight and cross arrangement, tow is wound through all heating rollers, and heating roller is heated using steam, all heating rollers The temperature of cylinder is progressively incremented by according to tandem, and maximum temperature is 200 degrees Celsius；

F, curling：Tow is stretched, the speed of strand tensile is 200m/min, is then loosened, and tow is crimped naturally；

G, relaxation heat setting：Tow is carried out into hot-air seasoning, the temperature of tow drying hot blast used is 70~80 Celsius Degree；

H, cut-out packing：Product according to involved by tow carries out cut-out and is incorporated to bag to the different demands of size to tow Packing, finally carries out desk checking storage.

The present invention takes into full account the composition situation of raw material in bottle piece pretreatment stage, and the different purposes according to chopped fiber are carried out Color is matched, and takes full advantage of the bottle piece of shades of colour, is had to outward appearance and color when clothing and home textile and its filler is made Requirement higher, therefore more using white and blue white vase piece, and when the filler of toy etc. is made because to outward appearance The waste and old white vase piece of less demanding and more use other colors of color, it is to avoid certain waste or used plastics cannot be applied and quilt Discard so as to cause the wasting of resources and environmental pollution, the present invention also sets nervous thermal finalization after drawing, and nervous hot fixed The heating roller used in type is upper nine times eight cross arrangements, gradual more preferable, the silk that tow heats up when by heating roller The toughness and resilience of beam are improved, and when nervous thermal finalization is not provided with, product elongation is big, and elongation is 35% More than, between 4.5-5.2cn/dtex, more than 6%, the present invention is increasing setting anxiety to 180 ° of relaxation shrinkages to fiber strength After thermal finalization, in more than 5.8cn/dtex, elongation can be controlled between 26%-32% fiber strength, 180 ° of relaxation shrinkages Between 4%-6%, it can be seen that, the chopped fiber of present invention production is with the obvious advantage, and production technology of the present invention is produced Chopped fiber soft texture, resilience it is good, be also equipped with the advantage of corrosion-resistant, the nonhygroscopic and anti-raw bacterium of general polyester staple fiber, It is suitable in relevant field popularization and application.

Claims

1. the production technology of differential polyester staple fiber is produced using PET bottle piece, it is characterised in that described production technology Comprise the following steps：

A, the pretreatment of bottle piece：First bottle tablet raw material is cleaned, is dried with drier after cleaning, it is then, right as needed White vase piece carries out colour match and mixes, and in described step a, white vase piece color proportioning is in production cloth or the filler of home textile Using blue and white white vase piece mixing match during chopped fiber used, blue white vase piece accounts for 15% ~20%, when the chopped fiber used by toy filler is produced using the white vase piece mixing match of other colors；

B, bottle piece spinning：The white vase piece that will first match is dried, and is then melted white vase piece feeding double screw extruder Melt spinning, in described step b, white vase piece water content after the drying is less than 100ppm, the operating temperature of double screw extruder It is 280~300 degrees Celsius；

C, wind into bucket：, then be wound for the tow after oil spout and finally enter bucket by the oil injection agent on the tow of extrusion, its silk The speed of beam winding is 1400m/min；

D, drawing-off：Tow in bucket is carried out into drawing-off；

E, nervous thermal finalization：The tow of drawing-off is sent into tension-setting machine, the heating roller in tension-setting machine is upper nine Lower eight and cross arrangement, tow are wound through all heating rollers, and heating roller is heated using steam, the temperature of all heating rollers Degree is progressively incremented by according to tandem, and maximum temperature is 200 degrees Celsius；

G, relaxation heat setting：Tow is carried out into hot-air seasoning, the temperature of its tow drying hot blast used is 70~80 degrees Celsius；

H, cut-out packing：Product according to involved by tow is cut off to tow and is carried out into bag to the different demands of size Packing.

2. utilization PET bottle piece according to claim 1 produces the production technology of differential polyester staple fiber, its feature It is：In described step f, the speed of tow crimping is 200m/min.

3. utilization PET bottle piece according to claim 1 produces the production technology of differential polyester staple fiber, its feature It is：In described step d, the degree of drawing of tow is 3.3-3.7 times after drawing-off, and elongation is 26%-32%, and fiber number is 1.4- 1.5D or 2.5-3D or 1.2-1.33D.