CN112593303A - Processing technology of white pure sea island interlaced yarn - Google Patents
Processing technology of white pure sea island interlaced yarn Download PDFInfo
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- CN112593303A CN112593303A CN202011295161.XA CN202011295161A CN112593303A CN 112593303 A CN112593303 A CN 112593303A CN 202011295161 A CN202011295161 A CN 202011295161A CN 112593303 A CN112593303 A CN 112593303A
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- yarn
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- processing technology
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/36—Matrix structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/004—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
Abstract
The invention discloses a processing technology of white pure sea island interlaced yarn, which comprises the following steps: s1, taking polyester as an island component, slicing, screening and conveying into a dryer for drying; s2, taking the modified polyester as a sea component, and mixing the modified polyester and the polyester according to the mass fraction of 1: 4, feeding the mixture into a double-screw composite spinning machine for melting; s3, putting the molten mass prepared in the S2 into a filter to pre-filter the molten mass; s4, conveying the melt filtered in the step S3 to a spinning box body through a metering pump, uniformly distributing the melt to spinneret holes of a spinneret plate assembly, and spinning to form primary raw silk; s5, cooling and forming the primary yarn in the S4 through low-temperature side air blowing; according to the processing technology of the white pure sea-island interlaced yarn, the POY (pre-oriented yarn) tows with the water content at the bottom are taken and used in the false twister with the D/Y ratio of 1.6-2.5, the sea-island yarn is excellent in network uniformity, and in the range, the indexes such as the crimp property, the strength and the like of the low-elasticity yarn are basically unchanged along with the change of the D/Y ratio, so that the production stability is kept.
Description
Technical Field
The invention relates to a processing technology of white pure sea-island interlaced yarn, belonging to the technical field of fiber production technology.
Background
Sea-island fiber is made by dispersing one polymer in another polymer, the dispersed phase is in the state of "island" in the fiber section, the parent body is alkali soluble section corresponding to "sea", it is a superfine fiber whose filament fineness is only 0.05D after alkali soluble treatment like many islands in sea, one component is surrounded by another material in the state of fine and dispersed when viewed from the cross section: 1. high coverage; 2. the hand feeling of length and breadth of land is soft, and the clothing is comfortable after being processed into clothing; 3. fabric gloss length and breadth of land and.
The key points for making sea-island fiber are: the 'island' and the 'island' cannot be adhered to each other. The smaller the "sea" the better. The sea and the island are polyester materials with different characteristics, and because a large amount of alkaline substances exist in the sea phase alkali-soluble slice and are easy to bond in the drying process, the alkaline substances are dispersed in the sea phase component of the sea-island fiber, so that the process performance of the sea-island fiber is adversely affected; also, since the "sea" phase component is a medium and is a useless waste after the preparation is completed, the less the "sea" phase, the better. And the less the sea component is reduced, the positive effects on environment pollution, production cost and production benefit are achieved in the subsequent finishing, so that the black sea-island fiber network yarn processing technology capable of effectively reducing the proportion of the sea-phase alkali-soluble slices in the original sea-island fibers needs to be designed.
The sea-island type fiber is also called fibril-matrix type composite fiber, the island phase component of which is of a fibril structure, the sea phase component is of an amorphous structure, the components of the fibril structure are embedded in the amorphous structure component in the cross section direction and distributed like a sea-island form, the polymers of the two components are continuously dense and uniformly dispersed in the longitudinal direction of the fiber, and the sea-island type fiber has the linear density and the length of the conventional fiber as seen from the whole fiber.
Disclosure of Invention
In order to solve the problems, the invention provides a processing technology of white pure sea-island network yarn.
The invention relates to a processing technology of white pure sea island network yarn, which comprises the following steps:
s1, taking polyester as an island component, slicing, screening and conveying into a dryer for drying;
s2, taking the modified polyester as a sea component, and mixing the modified polyester and the polyester according to the mass fraction of 1: 4, feeding the mixture into a double-screw composite spinning machine for melting;
s3, putting the molten mass prepared in the S2 into a filter to pre-filter the molten mass;
s4, conveying the melt filtered in the step S3 to a spinning box body through a metering pump, uniformly distributing the melt to spinneret holes of a spinneret plate assembly, and spinning to form primary raw silk;
s5, cooling and forming the primary yarn in the S4 through low-temperature side air blowing;
s6, crimping the primary yarns bundled and formed in the S5 into tows through a crimping machine;
s7, feeding the primary yarn formed by coiling in the S6 into a raw yarn frame;
s8: feeding the tow of S7 to a first roller;
s9: feeding the tow in the S8 into a first hot box through a yarn guide;
s10: cooling the tow in S9, and then feeding the tow into a false twister, and performing vacuum sealing biphenyl steam and electric heating composite heating;
s11: feeding the tow of S10 to a second roller;
s12: feeding the tow of S11 into a network nozzle
S13: feeding the tow in the S12 into a second hot box through a yarn guide;
s14: cooling the tow in the S13 and then feeding the tow into a third roller;
s15: uniformly distributing the tows in the S14 on an oil tanker;
s16: and (4) curling the tows in the S15 into tows by a tow curling machine, and preparing a finished product after heat setting, cutting and packaging.
Further, the moisture content of the dried S1 slice is not more than 0.000025%.
Further, the temperature of the first hot box in the step S9 is 170-185 ℃.
Further, the cooling temperature of the tows in the S10 is 80 degrees.
Further, the D/Y ratio in the S10 is 1.6-2.5.
Further, the processing speed of the second roller in the step S11 is 550-750 m/min.
Further, the temperature of the second hot box in the step S12 is 140-150 ℃.
Further, the rotation speed of the oil tanker in the S14 is 0.3rpm-08 rpm.
Further, a fan is adopted for cooling in the step S5, the rotating speed of the fan is 1500-2000r/min, and the temperature of the fan is 35-40 ℃.
Compared with the prior art, the white pure sea island network yarn processing technology provided by the invention has the advantages that in the production process of the POY yarn bundle, polyester is sliced and screened to remove powder mixed in the slices, the stable state of the slices during melting is kept, the moisture content of the POY yarn bundle is reduced by drying the POY yarn bundle through the drying agent, the uneven melt viscosity caused by overhigh moisture content is avoided, the moisture content of the primary yarn is further reduced by cooling the primary yarn through side air blowing, the quality of the POY sea island yarn taken in the production of the DTY sea island yarn is improved, and the forming quality of the DTY is improved.
The prepared POY tows are fed into a zero roller to be beneficial to improving the network uniformity, the POY tows are fed into a first hot box through a filament guide after the first roller, the first hot box adopts a contact type heating mode and has the functions of heating the tows to be in a plasticized state and being easier to stretch and deform, the fluffiness and the crimpability are better when the temperature is higher, the dyeing is shallow, the POY tows are fed into a false twister after being cooled to 80 ℃, the D/Y ratio is 1.6-2.5, in the range, the indexes such as the crimpability, the strength and the like of the low elastic yarns are basically unchanged along with the change of the D/Y ratio, the stable production is facilitated, the tows are shaped and overfed between a second roller and a third roller, the tows are controlled to be shaped under the relative loose state, the temperature of the second hot box is 140 ℃ and is used for shaping the processed tows, the POY tows are fed into an oil tanker by adopting non-contact type heating, and the functions of adding proper oil agents to, the yarn collecting performance is improved, the smoothness of the yarn is increased, and the antistatic property and the unwinding performance of the yarn are improved.
Detailed Description
Example 1:
a processing technology of white pure sea island network yarn is characterized in that: the method comprises the following steps:
s1, taking polyester as an island component, slicing, screening, and sending into a dryer for drying, wherein the water content of the sliced and dried product is 0.000025%;
s2, taking the modified polyester as a sea component, and mixing the modified polyester and the polyester according to the mass fraction of 1: 4, feeding the mixture into a double-screw composite spinning machine for melting;
s3, putting the molten mass prepared in the S2 into a filter to pre-filter the molten mass;
s4, conveying the melt filtered in the step S3 to a spinning box body through a metering pump, uniformly distributing the melt to spinneret holes of a spinneret plate assembly, and spinning to form primary raw silk;
s5, cooling and forming the primary yarn in the S4 through low-temperature side air blowing, wherein the rotating speed of a fan is 1500-2000r/min, and the temperature of the fan is 40 ℃;
s6, crimping the primary yarns bundled and formed in the S5 into tows through a crimping machine;
s7, feeding the primary yarn formed by coiling in the S6 into a raw yarn frame;
s8: feeding the tows in the S7 to a zero roller firstly and then to a first roller;
s9: the tow in the S8 is sent into a first hot box through a filament guide, vacuum seal biphenyl steam and electric heating composite heating are adopted, and the temperature of the first hot box is 170 ℃;
s10: cooling the tow in S9, and feeding the tow into a false twister, wherein the D/Y ratio is 1.6;
s11: feeding the tow in S10 to a second roller, wherein the processing speed of the second roller is 550;
s12: feeding the tow in S11 to a network nozzle;
s13: feeding the tow in the S12 into a second hot box through a yarn guide, wherein the temperature of the second hot box is 140 ℃;
s14: cooling the tow in the S13 and then feeding the tow into a third roller;
s15: uniformly distributing the tows in the S14 on an oil tanker;
s16: and (4) curling the tows in the S15 into tows by a tow curling machine, and preparing a finished product after heat setting, cutting and packaging.
In the production process of the POY tows, the polyester is sliced and screened, the powder mixed in the slices is screened, the stable state of the slices during melting is kept, the drying agent is used for drying the polyester to reduce the moisture content of the polyester, the phenomenon that the melt viscosity is uneven due to overhigh moisture content is avoided, the primary yarns are cooled by cross air blowing, the moisture content of the primary yarns is further reduced, the quality of the POY sea island yarns taken during production of the DTY sea island yarns is improved, and the forming quality of the DTY is improved.
The manufactured POY tows are fed into a zero roller, so that the uniformity of a network is improved, the POY tows are fed into a first hot box through a filament guide after the first roller, the first hot box adopts a contact type heating mode, the effect of the first hot box is that heated tows are in a plasticized state and are easier to stretch and deform, the fluffiness and the crimpability are better when the temperature of the first hot box is higher, dyeing is shallow, the temperature of the second hot box is 140 ℃, the effect of the second hot box is that processed tows are shaped, non-contact type heating is adopted, the shaped tows are fed into an oil tanker, and an appropriate oiling agent is added to low-elasticity yarns, so that the bundling property of the tows is improved, the smoothness of the tows is increased, and the antistatic property and the unwinding performance.
Example 2:
this example differs from example 1 only in that: the tow in S10 is cooled and then sent into a false twister, the D/Y ratio is 2.5, and the indexes of the obtained low-elasticity yarn, such as crimp property, strength and the like, are basically unchanged.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (9)
1. A processing technology of white pure sea island network yarn is characterized in that: the method comprises the following steps:
s1, taking polyester as an island component, slicing, screening and conveying into a dryer for drying;
s2, taking the modified polyester as a sea component, and mixing the modified polyester and the polyester according to the mass fraction of 1: 4, feeding the mixture into a double-screw composite spinning machine for melting;
s3, putting the molten mass prepared in the S2 into a filter to pre-filter the molten mass;
s4, conveying the melt filtered in the step S3 to a spinning box body through a metering pump, uniformly distributing the melt to spinneret holes of a spinneret plate assembly, and spinning to form primary raw silk;
s5, cooling and forming the primary yarn in the S4 through low-temperature side air blowing;
s6, crimping the primary yarns bundled and formed in the S5 into tows through a crimping machine;
s7, feeding the primary yarn formed by coiling in the S6 into a raw yarn frame;
s8: feeding the tows in the S7 to a zero roller firstly and then to a first roller;
s9: the tow in the S8 is sent into a first hot box through a filament guide, and vacuum seal biphenyl steam and electric heating composite heating are adopted;
s10: cooling the tow in S9 and feeding the tow into a false twister;
s11: feeding the tow of S10 to a second roller;
s12: feeding the tow of S11 into a network nozzle
S13: feeding the tow in the S12 into a second hot box through a yarn guide;
s14: cooling the tow in the S13 and then feeding the tow into a third roller;
s15: uniformly distributing the tows in the S14 on an oil tanker;
s16: and (4) curling the tows in the S15 into tows by a tow curling machine, and preparing a finished product after heat setting, cutting and packaging.
2. The processing technology of the white pure sea-island network yarn as claimed in claim 1, wherein: the water content of the dried S1 slice is not more than 0.000025%.
3. The processing technology of the white pure sea-island interlaced yarn according to claim 2, characterized in that: the temperature of the first hot box in the S9 is 170-185 ℃.
4. The processing technology of the white pure sea-island network yarn as claimed in claim 3, wherein: the cooling temperature of the tows in the S10 is 80 degrees.
5. The processing technology of the white pure sea-island network yarn as claimed in claim 4, wherein: the D/Y ratio in S10 is 1.6-2.5.
6. The processing technology of the white pure sea-island network yarn as claimed in claim 5, wherein: the processing speed of the second roller in the S11 is 550-750 m/min.
7. The processing technology of the white pure sea-island network yarn as claimed in claim 6, wherein: the temperature of the second hot box in the S13 is 140-150 ℃.
8. The processing technology of the white pure sea-island interlaced yarn according to claim 7, characterized in that: the rotation speed of the oil tanker in the S15 is 0.3rpm-08 rpm.
9. The processing technology of the white pure sea-island network yarn as claimed in any one of claims 1-8, wherein: and in the S5, a fan is adopted for cooling treatment, the rotating speed of the fan is 1500-2000r/min, and the temperature of the fan is 35-40 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011295161.XA CN112593303A (en) | 2020-11-18 | 2020-11-18 | Processing technology of white pure sea island interlaced yarn |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295161.XA CN112593303A (en) | 2020-11-18 | 2020-11-18 | Processing technology of white pure sea island interlaced yarn |
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| CN112593303A true CN112593303A (en) | 2021-04-02 |
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| CN202011295161.XA Pending CN112593303A (en) | 2020-11-18 | 2020-11-18 | Processing technology of white pure sea island interlaced yarn |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1552963A (en) * | 2003-05-30 | 2004-12-08 | 厦门翔鹭化纤股份有限公司 | Processing method for producing sea-island fibre POY based on sea-island fibre FDY producing apparatus |
| US20090042031A1 (en) * | 2005-09-29 | 2009-02-12 | Teijin Fibers Limited | Method of producing islands-in-sea type composite spun fiber |
| CN102071495A (en) * | 2010-07-28 | 2011-05-25 | 烟台万华超纤股份有限公司 | Figured sea-island super-fine fiber, and preparation method thereof and synthetic leather preparing process method using same |
| CN102787379A (en) * | 2012-08-27 | 2012-11-21 | 张家港锦亿化纤有限公司 | Preparation method of color-concentrated type composite polyester drawn textured yarn |
| CN105839209A (en) * | 2016-05-25 | 2016-08-10 | 浙江古纤道股份有限公司 | Process for processing same-spinneret bi-color ultrafine composite polyester fibers |
| US20170016147A1 (en) * | 2014-02-25 | 2017-01-19 | Toray Industries, Inc. | Sea-island composite fiber, composite ultra-fine fiber, and fiber product |
| CN110438610A (en) * | 2019-08-21 | 2019-11-12 | 江苏德力化纤有限公司 | A kind of preparation method and spiral shape polyester fiber of spiral shape polyester fiber |
-
2020
- 2020-11-18 CN CN202011295161.XA patent/CN112593303A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1552963A (en) * | 2003-05-30 | 2004-12-08 | 厦门翔鹭化纤股份有限公司 | Processing method for producing sea-island fibre POY based on sea-island fibre FDY producing apparatus |
| US20090042031A1 (en) * | 2005-09-29 | 2009-02-12 | Teijin Fibers Limited | Method of producing islands-in-sea type composite spun fiber |
| CN102071495A (en) * | 2010-07-28 | 2011-05-25 | 烟台万华超纤股份有限公司 | Figured sea-island super-fine fiber, and preparation method thereof and synthetic leather preparing process method using same |
| CN102787379A (en) * | 2012-08-27 | 2012-11-21 | 张家港锦亿化纤有限公司 | Preparation method of color-concentrated type composite polyester drawn textured yarn |
| US20170016147A1 (en) * | 2014-02-25 | 2017-01-19 | Toray Industries, Inc. | Sea-island composite fiber, composite ultra-fine fiber, and fiber product |
| CN105839209A (en) * | 2016-05-25 | 2016-08-10 | 浙江古纤道股份有限公司 | Process for processing same-spinneret bi-color ultrafine composite polyester fibers |
| CN110438610A (en) * | 2019-08-21 | 2019-11-12 | 江苏德力化纤有限公司 | A kind of preparation method and spiral shape polyester fiber of spiral shape polyester fiber |
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Application publication date: 20210402 |