CN102071479B - Manufacturing method of water-proof and oil-proof coloured polyester staple fibers - Google Patents
Manufacturing method of water-proof and oil-proof coloured polyester staple fibers Download PDFInfo
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Abstract
The invention discloses a manufacturing method of water-proof and oil-proof coloured polyester staple fibers, aiming at solving the problems of nonwoven fabric deformation and coloured polyester staple fiber discoloration of the traditional coloured nonwoven fabric in the process of obtaining water-proof and oil-proof properties through padding finishing. In the invention, water-proof agents and oil-proof agents are attached to the surfaces of the coloured polyester staple fibers step by step and layer by layer so as to enable to the surfaces of the coloured polyester staple fibers to achieve the water-proof and oil-proof properties; a nonwoven fabric per se, produced by using the coloured polyester staple fibers, has water-proof and oil-proof functions, without being subjected to padding finishing to obtain the water-proof and oil-proof functions, and has the characteristics of difficulty in deformation and difficulty in discoloration of the coloured polyester staple fibers when dried; and in addition, the process flow is simplified, the energy consumption is lowered and the production cost is reduced.
Description
Technical field
The present invention relates to the polyester staple fiber production technical field, particularly a kind of manufacturing approach with coloured polyester staple fibre of waterproof and oilproof function.
Background technology
Polyester staple fiber is of many uses in all trades and professions.Announce according to Japanization fiber association; Polyester staple fiber accounts for more than 78% in 4,160 ten thousand tons of the whole world chemical fibre output in 2009; Differential in the polyester fiber, the functionalization kind is also many especially; Like three-dimensional crimp, odd-shaped cross section, low melting point, highly shrink, functional polyester staple fibres such as antibiotic, mildew-resistant, high suction, in this all functional product, also do not see coloured polyester staple fibre with waterproof and oilproof function.The coloured nonwoven product that has the waterproof and oilproof function in the market all is to obtain through fiber carding, the mode that is consolidated into behind the cloth again through padding finishing.The coloured nonwoven fabric with waterproof and oilproof function that obtains in this way exists two problems at present: the one, and the coloured polyester staple fibre is after padding finishing obtains the waterproof and oilproof performance; Need under certain hour and temperature, moisture content to be dried, and that the drying process of this band moisture content can influence color and luster, the nonwoven fabric of coloured polyester staple fibre is easily deformable; The 2nd, the nonwoven fabric that certain structures is fluffy, like eedle-punched non-wovens and spun laced fabric, in the padding finishing process, bearing can distortion behind certain pulling force.
Publication number CN1644771A; Open day is the Chinese invention patent on July 27th, 2005; Disclose a kind of production method of low-melting point polyester staple fiber, after the low melting point polyester chip process cryogenic vacuum rotary drum certain hour drying, got into screw rod through the filling drying tower; Section gets into filament spinning component after the fusion, through coiling and molding, boundling, three drawing-offs, nervous HEAT SETTING, curl, relaxation heat setting, cut-out, opening flow process be to finished product.The polyester staple fiber stable performance of producing through this method, but this polyester staple fiber itself does not have the waterproof and oilproof function is obtaining the waterproof and oilproof performance through padding finishing after making nonwoven fabric, still has the problem of nonwoven fabric distortion, polyester staple fiber variable color.
Summary of the invention
The objective of the invention is to overcome existing coloured nonwoven fabric and obtain the nonwoven fabric distortion that exists in the waterproof and oilproof performance process, the problem of coloured polyester staple fibre variable color through padding finishing; A kind of manufacturing approach of waterproof and oilproof coloured polyester staple fibre is provided; It with water and oil repellent agent substep layering ground attached to coloured polyester staple fibre top layer; Make coloured polyester staple fibre surface have the waterproof and oilproof characteristic; Nonwoven fabric itself with the production of this coloured polyester staple fibre just has the waterproof and oilproof function, need could not obtain the waterproof and oilproof function through padding finishing, and not yielding during drying, coloured polyester staple fibre can variable color; Simplify technological process, energy efficient, reduced production cost.
Another object of the present invention is to provide a kind of waterproof and oilproof coloured polyester staple fibre.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of manufacturing approach of waterproof and oilproof coloured polyester staple fibre, described manufacturing approach may further comprise the steps:
1. spinning: heating and melting in polyester polymers and the Masterbatch feeding screw extruder is processed melt; Melt flows out through screw rod, through prefilter, by the Spinning pumps metering, extrudes the formation as-spun fibre through spinneret orifice;
2. boundling: as-spun fibre forms the tow of coming into being, spun filament constriction bundle to 100 ~ 2,600,000 dawn in roll-type oils I, the back feed yarns bundled tube of reeling;
3. waterproof and oilproof processing pre-treatment: the tow behind the boundling gets in the crimping machine and curls through oil II and steam pre-setting of drawing-off, roll-type; Said drawing-off comprises the first road hot water drawing-off and the second road steam drafting;
4. waterproof and oilproof is handled: carry out the water and oil repellent agent spraying first time after tow comes out from crimping machine, the rate of oiling is 0.1 ~ 0.3%; Get into baking oven HEAT SETTING then, after baking oven HEAT SETTING, tow is carried out the water and oil repellent agent spraying second time, the rate of oiling is 0.2 ~ 0.5%;
5. process finished product: the tow after 4. step is handled gets product after cutting off, packing.
The present invention be employed in twice oils before and after the baking oven HEAT SETTING method with water and oil repellent agent substep layering ground attached to coloured polyester staple fibre surface; Make coloured polyester staple fibre surface have the waterproof and oilproof characteristic; Use the nonwoven fabric of fiber production of the present invention itself just to have the waterproof and oilproof function, need could not obtain the waterproof and oilproof function through padding finishing, not yielding during drying, coloured polyester staple fibre can variable color; Simplify technological process, energy efficient, reduce production costs; Water and oil repellent agent adopts the method for spraying, makes water and oil repellent agent can be uniformly distributed in coloured polyester staple fibre surface; Water and oil repellent agent is commercially available, model: Italian Bozzetto ESTARFIN 7798; Also design water and oil repellent agent spraying for the second time after baking oven HEAT SETTING as replenishing of waterproof oil-proof result, adopts high concentration to oil; The waterproof and oilproof agent concentration of spraying is 20 ~ 35g/L for the first time, and the waterproof and oilproof agent concentration of spraying is 35 ~ 45g/L for the second time, water and oil repellent agent spraying for the second time, the preferred 0.3-0.4% of the rate that oils.
As preferably, need dry 8 ~ 12 hours before the 1. middle polyester polymers feeding of the step screw extruder, by weight, the feed quantity of polyester polymers and Masterbatch is: polyester polymers 95% ~ 98%, Masterbatch 2% ~ 5%.It is raw material that the present invention adopts regenerative piece of polyester bottle, saves resource, is a kind of product of sustainable development, and polyester polymers needs dry in advance to remove moisture.
As preferably, the 2. described roll-type of the step used finish of I that oils is a fibre finishing, and the rate of oiling is 0.05-0.1%.Chemical fibre produces static because of constantly rubbing in spinning and weaving process, must make used additives to prevent or to eliminate accumulation of static electricity, gives fiber simultaneously with characteristic such as soft, level and smooth, makes it pass through later process smoothly.This auxiliary agent is referred to as fibre finishing.Fibre finishing should possess following characteristic: level and smooth, antistatic, effects such as boundling or obvolvent are arranged; Heat stability is good, volatility is low; To had no corrosive effect on metals; Washability is good, does not influence fiber colour; The odorless nonirritant, not stratified, not putrid and deteriorated under the holding conditions of regulation; Allotment is with easy to use, and raw material is easy to get, and cost is suitable.The fibre finishing model that the present invention adopts is: Italian Bozzetto CT39.
As preferably, the 3. described roll-type of the step used finish of II that oils is a fibre finishing, and the rate of oiling is 0.1-0.2%.Fiber oil content (rate promptly oils) is bigger to fibrous woven processing characteristics influence, and the rate of oiling is crossed and low or too highly all can be had a negative impact to the fibrous woven processing characteristics, and the rate that oils is low excessively, is prone to electrostatic phenomenon; The rate that oils is too high, is prone to produce the sticking problem that twines.
As preferably, the 3. described first road hot water drawing-off of step, the hot water temperature is 78 ~ 82 ℃, draw ratio is 3.2 ~ 3.7 times; The second road steam drafting, vapor (steam) temperature are 100 ~ 110 ℃, and draw ratio is 1.1 ~ 1.15 times.Can fiber is stretching, drawing-down through drawing-off, most importantly can increase the intensity of fiber, the first road hot water drawing-off is the dominant draft step, and the fiber root softness that in hot water, can become is beneficial to and carries out bigger drawing-off, and the second road steam drafting is auxilliary drafting step.
As preferably, the 3. described steam pre-setting of step temperature is 120 ~ 130 ℃; Curl in the crimping machine, crispation number is 8 ~ 11/inch, and the feeding speed of tow is 180 ~ 200m/min.The steam pre-setting, curl after, fiber is one-step forming just.
As preferably, the 4. described baking oven HEAT SETTING of step is divided into four humidity provinces: district's temperature is 110 ~ 115 ℃, and two district's temperature are 120 ~ 130 ℃, and three district's temperature are 130 ~ 140 ℃, and four district's temperature are 40 ~ 50 ℃.Respectively there is effect four humidity provinces of baking oven HEAT SETTING, and mainly in order to remove moisture, two districts are heating zones in a district; Prepare for the typing in next district, three districts are shaping areas, play styling; Four district's temperature are lower, do transition for the cooling of fiber, are beneficial to last cooling and shaping.
The waterproof and oilproof coloured polyester staple fibre that the present invention also provides said method to make.
The invention has the beneficial effects as follows
:The present invention be employed in twice oils before and after the baking oven HEAT SETTING method with water and oil repellent agent substep layering ground attached to coloured polyester staple fibre surface; Make coloured polyester staple fibre surface have the waterproof and oilproof characteristic; Use the nonwoven fabric of fiber production of the present invention itself just to have the waterproof and oilproof function, need could not obtain the waterproof and oilproof function through padding finishing, not yielding during drying, coloured polyester staple fibre can variable color; Simplify technological process, energy efficient, reduced production cost.
The specific embodiment
Through specific embodiment, technical scheme of the present invention is further specified below.
Embodiment 1:
Polyester polymers: adopt import white polyester bottle sheet (clean sheet).Produce 3D black waterproof and oilproof polyester staple fiber.
(1) white polyester bottle sheet (being polyester polymers) is placed in the rotary drum dry 8 hours, polyester polymers by weight 95% and 5% Masterbatch are fed in the screw extruder of spinning production line, and heating and melting is processed melt; The heating-up temperature in seven districts of screw rod is respectively: 275 ~ 285 ℃, and 275 ~ 280 ℃, 280 ~ 285 ℃; 285 ~ 290 ℃; 285 ~ 290 ℃, 280 ~ 285 ℃, 280 ~ 285 ℃.
(2) melt flows out from screw rod; Through prefilter,, extrude through spinneret orifice with the pressure of 8.0MP by the Spinning pumps metering; Under the effect of external force (deadweight of coiling pulling force, melt and windage power) and quench air, make that melt elongates, attenuates, form as-spun fibre behind the cooling curing.The speed that strand sprays from spinneret orifice is 1000m/min.The as-spun fibre silk is fed into after roll-type oils I, coiling becomes nascent tow in the tow tube.Roll-type oils and adopts fibre finishing, model in the I: Italian Bozzetto CT39, oil concentration are 0.4%, and the rate of oiling is 0.05%, and oiling roller speed is 25rpm; Winding speed is 900m/min.
(3) the spun filament bundle was bundled to for 1,000,000 dawn, was fed in the drafting system, and feeding speed is 43m/min, and process drawing-off, roll-type oil in II and the steam pre-setting entering crimping machine:
Draw conditions is following:
The first road drawing-off medium: 78 ℃ of hot water, draw ratio are 3.2 times;
The second road drawing-off medium: 100 ℃ of steam, draw ratio are 1.10 times;
The roll-type II condition that oils is following:
Finish: fibre finishing, model: Italian Bozzetto CT39;
Oil concentration: 4%, the rate of oiling is 0.1%;
Pre-setting steam chest temperature is 120 ℃.
(4) curl: crispation number is 8/inch, and tow feeding speed is 180m/min.
(5) carry out the water and oil repellent agent spraying first time after tow comes out from crimping machine, the water and oil repellent agent model: Italian Bozzetto ESTARFIN 7798, concentration: 20g/L, rate oils: 0.1%.
(6) get into then and carry out HEAT SETTING in the baking oven, HEAT SETTING is divided into four humidity provinces: a district: 110 ~ 115 ℃; Two districts: 120 ~ 130 ℃; Three districts: 130 ~ 140 ℃; Four districts: 40 ~ 50 ℃.
(7) after tow comes out, carry out the second road water and oil repellent agent spraying, water and oil repellent agent model: Italian Bozzetto ESTARFIN 7798 from baking oven; Concentration: 35g/L; Rate oils: 0.2%.
And then cut off, shearing length adopts inch system cutterhead, gets into baling press and is finished product, weight per package 250KG.
Embodiment 2:
Polyester polymers: adopt import white polyester bottle sheet (clean sheet).Produce the red waterproof and oilproof polyester staple fiber of 3D.
(1) white polyester bottle sheet (being polyester polymers) is placed in the rotary drum dry 12 hours, polyester polymers by weight 98% and 2% Masterbatch are fed in the screw extruder of spinning production line, and heating and melting is processed melt; The heating-up temperature in seven districts of screw rod is respectively: 275 ~ 285 ℃, and 275 ~ 280 ℃, 280 ~ 285 ℃; 285 ~ 290 ℃; 285 ~ 290 ℃, 280 ~ 285 ℃, 280 ~ 285 ℃.
(2) melt flows out from screw rod; Through prefilter,, extrude through spinneret orifice with the pressure of 10.0MP by the Spinning pumps metering; Under the effect of external force (deadweight of coiling pulling force, melt and windage power) and quench air, make that melt elongates, attenuates, form as-spun fibre behind the cooling curing.The speed that strand sprays from spinneret orifice is 1200m/min.The as-spun fibre silk is fed into after roll-type oils I, coiling becomes nascent tow in the tow tube.Roll-type oils and adopts fibre finishing, model in the I: Italian Bozzetto CT39, oil concentration are 0.5%, and the rate of oiling is 0.1%, and oiling roller speed is 30rpm; Winding speed is 1300m/min.
(3) the spun filament bundle was bundled to for 2,600,000 dawn, was fed in the drafting system, and feeding speed is 47m/min, and process drawing-off, roll-type oil in II and the steam pre-setting entering crimping machine:
Draw conditions is following:
The first road drawing-off medium: 82 ℃ of hot water, draw ratio are 3.7 times;
The second road drawing-off medium: 110 ℃ of steam, draw ratio are 1.15 times;
The roll-type II condition that oils is following:
Finish: fibre finishing, model: Italian Bozzetto CT39;
Oil concentration: 6%, the rate of oiling is 0.2%;
Pre-setting steam chest temperature is 130 ℃.
(4) curl: crispation number is 11/inch, and tow feeding speed is 200m/min.
(5) carry out the water and oil repellent agent spraying first time after tow comes out from crimping machine, the water and oil repellent agent model: Italian Bozzetto ESTARFIN 7798, concentration: 35g/L, rate oils: 0.3%.
(6) get into then and carry out HEAT SETTING in the baking oven, HEAT SETTING is divided into four humidity provinces: a district: 110 ~ 115 ℃; Two districts: 120 ~ 130 ℃; Three districts: 130 ~ 140 ℃; Four districts: 40 ~ 50 ℃.
(7) after tow comes out, carry out the second road water and oil repellent agent spraying, water and oil repellent agent model: Italian Bozzetto ESTARFIN 7798 from baking oven; Concentration: 45g/L; Rate oils: 0.5%.
And then cut off, shearing length adopts inch system cutterhead, gets into baling press and is finished product, weight per package 280KG.
Final finished index: fibre strength>=3.0CN/dtex; Percentage elongation 50 ± 10%; Xeothermic contraction≤7%; Crispation number 7 ~ 10 cpi; Sliding oozing property: water droplet/oil droplet is all impermeable to advance fibrous inside.
The accessible effect of finished product: degree of getting wet >=6 grade (AATCC 22); Grease proofing >=6 grade (AATCC 118-1989); AATCC: U.S. textile chemist and printing and dyeing Shi Xiehui (American Association of Textile Chemists and Colorists is called for short AATCC).
Above-described embodiment is a preferable scheme of the present invention, is not the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (7)
1. the manufacturing approach of a waterproof and oilproof coloured polyester staple fibre, it is characterized in that: described manufacturing approach may further comprise the steps:
1. spinning: heating and melting in polyester polymers and the Masterbatch feeding screw extruder is processed melt; Melt flows out through screw rod, through prefilter, by the Spinning pumps metering, extrudes the formation as-spun fibre through spinneret orifice; Need dry 8 ~ 12 hours before the polyester polymers feeding screw extruder, by weight, the feed quantity of polyester polymers and Masterbatch is: polyester polymers 95% ~ 98%, Masterbatch 2% ~ 5%;
2. boundling: as-spun fibre forms the tow of coming into being, spun filament constriction bundle to 100 ~ 2,600,000 dawn in roll-type oils I, the back feed yarns bundled tube of reeling;
3. waterproof and oilproof processing pre-treatment: the tow behind the boundling gets in the crimping machine and curls through oil II and steam pre-setting of drawing-off, roll-type; Said drawing-off comprises the first road hot water drawing-off and the second road steam drafting;
4. waterproof and oilproof is handled: carry out the water and oil repellent agent spraying first time after tow comes out from crimping machine, the rate of oiling is 0.1 ~ 0.3%; Get into baking oven HEAT SETTING then, after baking oven HEAT SETTING, tow is carried out the water and oil repellent agent spraying second time, the rate of oiling is 0.2 ~ 0.5%; The waterproof and oilproof agent concentration of spraying is 20 ~ 35g/L for the first time, and the waterproof and oilproof agent concentration of spraying is 35 ~ 45g/L for the second time;
5. process finished product: the tow after 4. step is handled gets product after cutting off, packing.
2. the manufacturing approach of waterproof and oilproof coloured polyester staple fibre according to claim 1 is characterized in that: the 2. described roll-type of the step used finish of I that oils is a fibre finishing, and the rate of oiling is 0.05-0.1%.
3. the manufacturing approach of waterproof and oilproof coloured polyester staple fibre according to claim 1 is characterized in that: the 3. described roll-type of the step used finish of II that oils is a fibre finishing, and the rate of oiling is 0.1-0.2%.
4. the manufacturing approach of waterproof and oilproof coloured polyester staple fibre according to claim 1 is characterized in that: the 3. described first road hot water drawing-off of step, and the hot water temperature is 78 ~ 82 ℃, draw ratio is 3.2 ~ 3.7 times; The second road steam drafting, vapor (steam) temperature are 100 ~ 110 ℃, and draw ratio is 1.1 ~ 1.15 times.
5. the manufacturing approach of waterproof and oilproof coloured polyester staple fibre according to claim 1 is characterized in that: the 3. described steam pre-setting of step temperature is 120 ~ 130 ℃; Curl in the crimping machine, crispation number is 8 ~ 11/inch, and the feeding speed of tow is 180 ~ 200m/min.
6. the manufacturing approach of waterproof and oilproof coloured polyester staple fibre according to claim 1; It is characterized in that: the 4. described baking oven HEAT SETTING of step is divided into four humidity provinces: district's temperature is 110 ~ 115 ℃; Two district's temperature are 120 ~ 130 ℃; Three district's temperature are 130 ~ 140 ℃, and four district's temperature are 40 ~ 50 ℃.
7. the coloured polyester staple fibre produced of the manufacturing approach of a waterproof and oilproof coloured polyester staple fibre according to claim 1 with waterproof and oilproof function.
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Families Citing this family (4)
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| CN104695042A (en) * | 2013-12-09 | 2015-06-10 | 东丽纤维研究所（中国）有限公司 | Polyester short fibers and manufacturing method thereof, and short fiber yarns and felts produced from polyester short fibers |
| CN106637576B (en) * | 2016-12-16 | 2019-07-19 | 安徽东锦资源再生科技有限公司 | The energy-efficient preparation process of high-strength low-extension polyester staple fiber |
| CN109457307B (en) * | 2018-12-18 | 2021-05-25 | 福建省百川资源再生科技股份有限公司 | Method for manufacturing three-proofing fiber |
| CN111560674B (en) * | 2020-04-24 | 2022-12-27 | 江苏欣战江纤维科技股份有限公司 | Preparation method of outdoor pre-spinning coloring regenerated ATY (atom transfer Y) fiber with high filling power |
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| CN101487142A (en) * | 2009-03-03 | 2009-07-22 | 南京工业职业技术学院 | Method for producing felt polyester staple fiber by recycling polyester bottle slice |
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| CN1944719A (en) * | 2006-10-16 | 2007-04-11 | 滁洲安兴环保彩纤有限公司 | Method for producing color and differential polyester short fibre by melting body directly spinning online adding technology |
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