CN106400178B - A kind of manufacturing method of different contraction terylene low stretch yarn - Google Patents
A kind of manufacturing method of different contraction terylene low stretch yarn Download PDFInfo
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- CN106400178B CN106400178B CN201610796612.5A CN201610796612A CN106400178B CN 106400178 B CN106400178 B CN 106400178B CN 201610796612 A CN201610796612 A CN 201610796612A CN 106400178 B CN106400178 B CN 106400178B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/664—Polyesters containing oxygen in the form of ether groups derived from hydroxy carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
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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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- Textile Engineering (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polyesters Or Polycarbonates (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention relates to a kind of manufacturing methods of different contraction terylene low stretch yarn, it includes the following steps：1) will organise magnesium hydroxide crystal whisker, organo montmorillonite, organise barium sulphate nano powder, ethylene glycol, propylene glycol, butanediol, P-hydroxybenzoic acid, sodium germanate is mixed and made into the compound alcoholic solution of different contraction；2) will organise wollastonite nano whiskers fiber, mica powder, polyethylene glycol, propylene glycol, butanediol, high-temperature antioxidant 1098, antimony glycol, protonating agent phosphoric acid is mixed and made into different contraction compound accelerant；3) a kind of different contraction modified poly ester is made in different contraction composite multifunction alcoholic solution, different contraction compound accelerant and p-phthalic acid, ethylene glycol copolycondensation, its melt is sprayed by convex shape spinneret orifice, adopts and different contraction terylene low stretch yarn is made through cooling and solidifying mode, low temperature texturing craft.The fiber of this method manufacture has different crystallization, different orientation, different shrinkage, has wool-like effect.
Description
Technical field
The present invention relates to modified poly ester spining technology fields, relate in particular to a kind of manufacture of different contraction terylene low stretch yarn
Method.
Background technology
Different shrinkage fiber is a kind of fiber generating different shrinkage due to shrinking percentage difference.Compare currently on the market more
The different shrinkage fiber seen, polyphyly are made using the method that the long filament of two strands or three bursts different shrinking percentages carries out network plying；Also
It is made using the method for side-by-side bicomponent spinning.
Chinese patent 103484967A discloses a kind of copolyesters melt ultrahigh speed and directly spins controllable polyisocyanate contraction composite fiber
Preparation method, Chinese patent 102140700A discloses a kind of preparation method of double different contraction combined yarn, Chinese patent
101962838A discloses a kind of preparation method of the different contraction bicomponent filament yarn of terylene super fine, but these fibers belong to network plying
Different shrinkage fiber, network plying fiber due between tow cohesive force it is weak, mode of appearance is often very undesirable after contraction.Separately
Outside, the uneven of tow is easily caused due to machinery during plying, to the use in road or even final shadow after influence
Ring the presentation quality to fabric.
Chinese patent CN1403639 disclose it is a kind of abnormity from texturized polyester, different contraction T400 fibers etc., but this
A little fibers belong to side-by-side bicomponent fiber, it is complicated there are manufacturing process the shortcomings of.
Invention content
It is an object of the invention to overcome the shortcomings of the prior art, it is the different receipts of one-component that fiber can be produced by, which providing,
Shrinkage fibers have different crystallization, different orientation, different contraction, and mode of appearance is good after the different contraction of fiber, and one kind with wool-like effect is different
The manufacturing method of contraction terylene low stretch yarn.
A kind of manufacturing method of different contraction terylene low stretch yarn provided by the invention, it uses following steps：
A mass fraction) is pressed, by the magnesium hydroxide that organises of a diameter of 0.2-5um of 1-2 parts of characterization parameters, length 10-25um
Whisker, the 1-2 parts of nano imvites that organise, the 1-2 parts of barium sulphate nano powders that organise, 65-75 parts of ethylene glycol EG, 5-8 parts 1,
PDO, 10-15 parts of 1,4-butanediol BDO, 4-6 part P-hydroxybenzoic acid of 3-propanediol, 0.1-0.3 parts of sodium germanate mixing, mixing are molten
Liquid closed griding reaction 2-4 hours in 70 DEG C of agitating ball mills, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 14-16 by 1-2 parts of draw ratios:The wollastonite nano whiskers fiber that organises of 0.5-1.5,
800 mesh mica powder of 1-2 parts, polyethylene glycol PEG, 8-10 parts of 1,3-PDs PDO, 10-15 part that 8-10 parts of molecular weight are 15000
1,4-butanediol BDO, 0.2-0.4 part high-temperature antioxidant 1098,0.2-0.4 parts of antimony glycols, 0.1-0.3 parts of protonating agent phosphoric acid
Mixing, closed agitating ball mill griding reaction 1-2 hours under the conditions of 70 DEG C obtain a kind of different contraction compound accelerant, 70 DEG C
Heat preservation for standby use when vacuum dehydration to water content is less than 1%；
C) press mass fraction, it is prepared by step A) the compound alcoholic solution of the different contraction of 2-4 parts mixed with 6-8 parts of ethylene glycol, then
It is matched with 15-18 parts of terephthalic acid components, and mashing is blended, be heated to 70 DEG C of vacuum dehydrations, when water content is less than 1%
When be added to polyplant, esterification 2 hours is carried out at 250 DEG C of temperature, pressure 0.15MPa, in normal pressure esterification-polycondensation rank
Section, be continuously added to 1-2 part and prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C reaction 50 minutes, then take out
Vacuum carries out polycondensation reaction, until melt viscosity meets the technological requirement of post-processing in 283 DEG C of temperature, absolute pressure 100Pa or less
After discharge, be made a kind of different contraction modified poly ester；
D) using different contraction modified poly ester made of step C, for raw material, melt is sprayed by convex shape spinneret orifice, by spray
Preoriented yarn is made then by the inhomogeneous cooling curing mode of distribution gradient in ultrashort zone of silence below filament plate, using
A kind of different contraction terylene low stretch yarn is made in low temperature texturing craft.
As an improvement：Step D) in spinneret include plate body and more than one spinneret orifice, the spinneret orifice passes through
It wears and sets on plate body, arrange in more than one concentric circles between each spinneret orifice, the spinneret orifice is in convex shape.
As an improvement：Uniform intervals are arranged between spinneret orifice on same concentric circles, on each adjacent concentric circles
Spinneret orifice is staggered.
As an improvement：The spinneret orifice of the convex shape is axially symmetric structure, and symmetry axis is directed toward the center of circle of concentric circles.
As an improvement：The spinneret orifice of the convex shape includes a short side rectangular opening and a long side rectangular opening, institute
It includes lateral short side and longitudinal short side to state short side rectangular opening, and the long side rectangular opening includes lateral long side and longitudinal long side, described
Lateral short side and lateral long side fitting setting, the longitudinal direction short side vertical transverse long side setting, longitudinal short side and longitudinal long length of side
It is 0.125~0.6mm to spend identical and range, and the transverse direction long side is longer than lateral short side, the length range of the transverse direction short side
Length range for 0.04~0.1mm, the transverse direction long side is 0.06~0.3mm.
A kind of manufacturing method of different contraction terylene low stretch yarn provided by the invention, it uses following steps：
A mass fraction) is pressed, by the magnesium hydroxide crystal whisker that organises of a diameter of 2.6um of 1.5 parts of characterization parameters, length 13um,
1.5 parts of nano imvites that organise, 1.5 parts of barium sulphate nano powders that organise, 70 parts of ethylene glycol EG, 6 parts of 1,3-PDs
PDO, 10 parts of 1,4-butanediol BDO, 5 parts of P-hydroxybenzoic acid, 0.2 part of sodium germanate mixing, mixed solution is in 70 DEG C of stirring ball-millings
Secret closes griding reaction 3 hours, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 15 by 1.5 parts of draw ratios:The 1 wollastonite nano whiskers fiber that organises, 1.5 part of 800 mesh
Mica powder, 8 parts of molecular weight are 15000 polyethylene glycol PEG, 8 parts of 1,3-PD PDO, 15 parts of 1,4-butanediol BDO, 0.3 part
1098,0.2 part of antimony glycol of high-temperature antioxidant, 0.2 part of protonating agent phosphoric acid mixing, closed agitating ball mill under the conditions of 70 DEG C
Griding reaction 1.5 hours, obtains a kind of different contraction compound accelerant, keeps the temperature and waits for when 70 DEG C of vacuum dehydrations to water content are less than 1%
With；
C) press mass fraction, be prepared by step A) 3 parts of different compound alcoholic solutions of contraction mixed with 7 parts of ethylene glycol, then with 16
Part terephthalic acid component is matched, and mashing is blended, and is heated to 70 DEG C of vacuum dehydrations, is added when water content is less than 1%
To polyplant, esterification is carried out at 250 DEG C of temperature, pressure 0.15MPa 2 hours, in normal pressure esterification-polycondensation phase, even
It is continuous to be added 1.5 parts and prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C and react 50 minutes, then vacuumize,
Polycondensation reaction is carried out in 283 DEG C of temperature, absolute pressure 100Pa or less, until melt viscosity goes out after meeting the technological requirement of post-processing
A kind of different contraction modified poly ester is made in material；
D) using different contraction modified poly ester made of step C, for raw material, melt is sprayed by convex shape spinneret orifice, by spray
Preoriented yarn is made then by the inhomogeneous cooling curing mode of distribution gradient in ultrashort zone of silence below filament plate, using
A kind of different contraction terylene low stretch yarn is made in low temperature texturing craft.
Compared with prior art, the beneficial effects are mainly as follows：1,3-propanediol, 1,4- butanediols plus
Enter, increase the spiral arrangement mode of polyester molecule chain methylene, reduce lattice bulk density, so that material is had more preferable transparent
Degree, heat resistance and processability, 1,4- butanediols (BDO) crystalline rate can be promoted, improve crystal property, final products made to generate more
Good different contraction appearance effect, i.e. lofting effect；P-hydroxybenzoic acid (PHB) can be copolymerized to form a kind of thermotropic liquid crystal with PET
Copolyesters, this material not only has high intensity, high-modulus, and has remarkable melt processing fluidity；Whisker is with list
The theory of diameter very small (0.1~10um), atomic arrangement high-sequential, intensity close to perfect crystal made of crystalline form growth
It is worth, has the fiber condition of certain draw ratio (5-1000), has the function of high intensity, heat-resisting, fire-retardant, antibacterial, conduction, suction wave etc..
Because of several times to tens times of the length of high molecular material macromolecular chain length, a small amount of whisker is added in the polyester, plays increasing
By force, the effect of toughening improves the heat resistance of polyester fiber product, also improves the intensity of polyester fiber.Whisker is a kind of reason
The polymer modification agent thought, has a wide range of applications field；Organic grade of montmorillonite of nanometer, has higher surface energy and good
Good dispersibility, has very strong affinity with high polymer, can promote crystallizing polyester, improve the strength and elongation of polyester fiber.Mica powder is
A kind of nonmetallic mineral, containing Multiple components, wherein mainly having SiO2 and Al2O3, content generally contains in 49% or so, Al2O3
Amount is 30% or so.PET intensity containing ultrafine mica powder is high, and deformation is small, keeps the processing fluidity of PET melt good；Sodium germanate
It is the effective catalyst of main reaction, and then there is inert to the reaction for generating by-product；Antimony glycol is to be applied to polycondensation of polyester
A kind of reaction catalyst the most novel.The different contraction modified poly ester, is than the advantages of conventional polyester, in spinning process
It is middle that than conventional polyester energy rapid crystallization, the addition of nanoscale montmorillonite and mica powder improves the hardness and non-deformability of material,
So that the modulus of fiber improves, by the way that whisker is added, the degree of orientation, intensity and the hardness of fiber are all significantly improved.
The addition of copolymerization component propylene glycol, butanediol improves the compliance of polyester molecule chain so that the fiber spinned has more excellent
Good different shrinkage.Different contraction modified poly ester is combined with spinneret orifice of the present invention, spinning technique, makes prepared fibre
Dimension has more excellent different contractility.
The fiber that the method for the present invention produces is one-component different shrinkage fiber, has different crystallization, different orientation, different contraction, fine
Mode of appearance is good after tieing up different contraction, has unique wool-like effect.
Description of the drawings
Fig. 1 is the structural schematic diagram for the spinneret that the present invention uses；
Fig. 2 is the convex shape spinneret orifice cross section structure schematic diagram of the present invention；
Specific implementation mode
Below in conjunction with specific embodiment, the present invention will be described in detail：A kind of different contraction terylene of the present invention is low
The manufacturing method of elater, using following steps：
A mass fraction) is pressed, by the magnesium hydroxide that organises of a diameter of 0.2-5um of 1-2 parts of characterization parameters, length 10-25um
Whisker, the 1-2 parts of nano imvites that organise, the 1-2 parts of barium sulphate nano powders that organise, 65-75 parts of ethylene glycol EG, 5-8 parts 1,
PDO, 10-15 parts of 1,4-butanediol BDO, 4-6 part P-hydroxybenzoic acid of 3-propanediol, 0.1-0.3 parts of sodium germanate mixing, mixing are molten
Liquid closed griding reaction 2-4 hours in 70 DEG C of agitating ball mills, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 14-16 by 1-2 parts of draw ratios:The wollastonite nano whiskers fiber that organises of 0.5-1.5,
800 mesh mica powder of 1-2 parts, polyethylene glycol PEG, 8-10 parts of 1,3-PDs PDO, 10-15 part that 8-10 parts of molecular weight are 15000
1,4-butanediol BDO, 0.2-0.4 part high-temperature antioxidant 1098,0.2-0.4 parts of antimony glycols, 0.1-0.3 parts of protonating agent phosphoric acid
Mixing, closed agitating ball mill griding reaction 1-2 hours under the conditions of 70 DEG C obtain a kind of different contraction compound accelerant, 70 DEG C
Heat preservation for standby use when vacuum dehydration to water content is less than 1%；
C) press mass fraction, it is prepared by step A) the compound alcoholic solution of the different contraction of 2-4 parts mixed with 6-8 parts of ethylene glycol, then
It is matched with 15-18 parts of terephthalic acid components, and mashing is blended, be heated to 70 DEG C of vacuum dehydrations, when water content is less than 1%
When be added to polyplant, esterification 2 hours is carried out at 250 DEG C of temperature, pressure 0.15MPa, in normal pressure esterification-polycondensation rank
Section, be continuously added to 1-2 part and prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C reaction 50 minutes, then take out
Vacuum carries out polycondensation reaction, until melt viscosity meets the technological requirement of post-processing in 283 DEG C of temperature, absolute pressure 100Pa or less
After discharge, be made a kind of different contraction modified poly ester；
D) using different contraction modified poly ester made of step C, for raw material, melt is sprayed by convex shape spinneret orifice, by spray
Preoriented yarn is made then by the inhomogeneous cooling curing mode of distribution gradient in ultrashort zone of silence below filament plate, using
A kind of different contraction terylene low stretch yarn is made in low temperature texturing craft.
As shown in Figure 1, 2, step D of the present invention) in spinneret include plate body and more than one spinneret orifice, the spinneret
Hole is arranged between each spinneret orifice in more than one concentric circles through being arranged on plate body, and the spinneret orifice is in convex shape；Together
Uniform intervals are arranged between spinneret orifice on one concentric circles, and the spinneret orifice on each adjacent concentric circles is staggered；The type
The spinneret orifice of shape is axially symmetric structure, and symmetry axis is directed toward the center of circle of concentric circles；The spinneret orifice of the convex shape includes a short side
Rectangular opening and a long side rectangular opening, the short side rectangular opening include lateral short side and longitudinal short side, the long side rectangular opening packet
Include lateral long side and longitudinal long side, the transverse direction short side and lateral long side fitting setting, the longitudinal direction short side vertical transverse long side
Setting, longitudinal short side is identical with longitudinal long side length and range is 0.125~0.6mm, and the transverse direction long side is longer than laterally short
The length range on side, the transverse direction short side is 0.04~0.1mm, and the length range of the transverse direction long side is 0.06~0.3mm.
Embodiment 1：A kind of manufacturing method of different contraction terylene low stretch yarn, using following steps：
A mass fraction, by the magnesium hydroxide crystal whisker that organises of a diameter of 0.2um of 1 part of characterization parameter, length 10um, 1) are pressed
Part organises nano imvite, 1 part of barium sulphate nano powder that organises, 65 parts of ethylene glycol EG, 8 parts of 1,3-PD PDO, 10 parts
1,4-butanediol BDO, 4 parts of P-hydroxybenzoic acid, the mixing of 0.1 part of sodium germanate, mixed solution are ground 70 DEG C of agitating ball mills are closed
Mill reaction 2 hours, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 14 by 1 part of draw ratio:The 0.5 wollastonite nano whiskers fiber that organises, 1 part of 800 mesh cloud
Female powder, 8 parts of molecular weight are 15000 polyethylene glycol PEG, 8 parts of 1,3-PD PDO, 15 parts of 1,4-butanediol BDO, 0.2 part of height
1098,0.2 part of antimony glycol of warm antioxidant, 0.1 part of protonating agent phosphoric acid mixing, closed agitating ball mill is ground under the conditions of 70 DEG C
Mill reaction 1 hour obtains a kind of different contraction compound accelerant, heat preservation for standby use when 70 DEG C of vacuum dehydrations to water content are less than 1%；
C) press mass fraction, be prepared by step A) 4 parts of different compound alcoholic solutions of contraction mixed with 6 parts of ethylene glycol, then with 16
Part terephthalic acid component is matched, and mashing is blended, and is heated to 70 DEG C of vacuum dehydrations, is added when water content is less than 1%
To polyplant, esterification is carried out at 250 DEG C of temperature, pressure 0.15MPa 2 hours, in normal pressure esterification-polycondensation phase, even
It is continuous to be added 1 part and prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C and react 50 minutes, then vacuumize,
283 DEG C of temperature, absolute pressure 100Pa or less carry out polycondensation reaction, until melt viscosity discharges after meeting the technological requirement of post-processing,
A kind of different contraction modified poly ester is made；
D step C) is used to be made) different contraction modified poly ester for raw material, melt is sprayed by convex shape spinneret orifice, pass through
Then by the inhomogeneous cooling curing mode of distribution gradient preoriented yarn is made, then pass through in ultrashort zone of silence below spinneret
It crosses low temperature texturing craft and a kind of different contraction terylene low stretch yarn is made；
The sectional dimension of convex shape wire hole described in the present embodiment a is 0.06mm, h 0.6mm, b 0.12mm；Convex shape sprays
Wire hole is distributed on spinneret in concentric circles, and convex shape spinneret centerline hole is directed toward spinneret center, convex on different concentric circles
Font wire hole is staggered；Using this plate spinning fiber cooling and solidifying mode be that outer shroud is blown, the ends a outwardly, to obtain every
The inhomogeneous cooling solidification effect of distribution gradient on silk cross section.
Embodiment 2：A kind of manufacturing method of different contraction terylene low stretch yarn, using following steps：
A mass fraction) is pressed, by the magnesium hydroxide crystal whisker that organises of a diameter of 2.6um of 1.5 parts of characterization parameters, length 13um,
1.5 parts of nano imvites that organise, 1.5 parts of barium sulphate nano powders that organise, 70 parts of ethylene glycol EG, 6 parts of 1,3-PDs
PDO, 10 parts of 1,4-butanediol BDO, 5 parts of P-hydroxybenzoic acid, 0.2 part of sodium germanate mixing, mixed solution is in 70 DEG C of stirring ball-millings
Secret closes griding reaction 3 hours, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 15 by 1.5 parts of draw ratios:The 1 wollastonite nano whiskers fiber that organises, 1.5 part of 800 mesh
Mica powder, 8 parts of molecular weight are 15000 polyethylene glycol PEG, 8 parts of 1,3-PD PDO, 15 parts of 1,4-butanediol BDO, 0.3 part
1098,0.2 part of antimony glycol of high-temperature antioxidant, 0.2 part of protonating agent phosphoric acid mixing, closed agitating ball mill under the conditions of 70 DEG C
Griding reaction 1.5 hours, obtains a kind of different contraction compound accelerant, keeps the temperature and waits for when 70 DEG C of vacuum dehydrations to water content are less than 1%
With；
C) press mass fraction, be prepared by step A) 3 parts of different compound alcoholic solutions of contraction mixed with 7 parts of ethylene glycol, then with 16
Part terephthalic acid component is matched, and mashing is blended, and is heated to 70 DEG C of vacuum dehydrations, is added when water content is less than 1%
To polyplant, esterification is carried out at 250 DEG C of temperature, pressure 0.15MPa 2 hours, in normal pressure esterification-polycondensation phase, even
It is continuous to be added 1.5 parts and prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C and react 50 minutes, then vacuumize,
Polycondensation reaction is carried out in 283 DEG C of temperature, absolute pressure 100Pa or less, until melt viscosity goes out after meeting the technological requirement of post-processing
A kind of different contraction modified poly ester is made in material；
D step C) is used to be made) different contraction modified poly ester for raw material, melt is sprayed by convex shape spinneret orifice, pass through
Then by the inhomogeneous cooling curing mode of distribution gradient preoriented yarn is made, then pass through in ultrashort zone of silence below spinneret
It crosses low temperature texturing craft and a kind of different contraction terylene low stretch yarn is made；
The sectional dimension of convex shape wire hole described in the present embodiment a is 0.06mm, h 0.48mm, b 0.12mm；Convex shape
Spinneret orifice is distributed on spinneret in concentric circles, convex shape spinneret centerline hole direction spinneret center, on different concentric circles
Convex shape wire hole is staggered；It is that outer shroud is blown using the fiber cooling and solidifying mode of this plate spinning, the ends a are outwardly, every to obtain
The inhomogeneous cooling solidification effect of distribution gradient on root silk cross section.
Embodiment 3：A kind of manufacturing method of different contraction terylene low stretch yarn, using following steps：
A mass fraction, by the magnesium hydroxide crystal whisker that organises of a diameter of 0.2um of 1 part of characterization parameter, length 25um, 2) are pressed
Part organises nano imvite, 2 parts of barium sulphate nano powders that organise, 70 parts of ethylene glycol EG, 5 parts of 1,3-PD PDO, 15 parts
1,4-butanediol BDO, 5 parts of P-hydroxybenzoic acid, the mixing of 0.2 part of sodium germanate, mixed solution are ground 70 DEG C of agitating ball mills are closed
Mill reaction 2.5 hours, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 15 by 1.5 parts of draw ratios:The 1 wollastonite nano whiskers fiber that organises, 1.5 part of 800 mesh
Mica powder, 9 parts of molecular weight are 15000 polyethylene glycol PEG, 9 parts of 1,3-PD PDO, 12 parts of 1,4-butanediol BDO, 0.3 part
1098,0.2 part of antimony glycol of high-temperature antioxidant, 0.2 part of protonating agent phosphoric acid mixing, closed agitating ball mill under the conditions of 70 DEG C
Griding reaction 1.5 hours, obtains a kind of different contraction compound accelerant, keeps the temperature and waits for when 70 DEG C of vacuum dehydrations to water content are less than 1%
With；
C) press mass fraction, it is prepared by step A) 2.5 parts of different compound alcoholic solutions of contraction mixed with 7.5 parts of ethylene glycol, then
It is matched with 16 parts of terephthalic acid components, and mashing is blended, be heated to 70 DEG C of vacuum dehydrations, when water content is less than 1%
It is added to polyplant, esterification is carried out at 250 DEG C of temperature, pressure 0.15MPa 2 hours, in normal pressure esterification-polycondensation rank
Section, is continuously added to 1 part and is prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C and react 50 minutes, then take out true
Sky carries out polycondensation reaction, until after melt viscosity meets the technological requirement of post-processing in 283 DEG C of temperature, absolute pressure 100Pa or less
A kind of different contraction modified poly ester is made in discharging；
D step C) is used to be made) different contraction modified poly ester for raw material, melt is sprayed by convex shape spinneret orifice, pass through
Then by the inhomogeneous cooling curing mode of distribution gradient preoriented yarn is made, then pass through in ultrashort zone of silence below spinneret
It crosses low temperature texturing craft and a kind of different contraction terylene low stretch yarn is made；
The sectional dimension of convex shape wire hole described in the present embodiment a is 0.06mm, h 0.6mm, b 0.18mm；Described is convex
Font spinneret orifice is distributed on spinneret in concentric circles, and convex shape spinneret centerline hole is directed toward spinneret center, different concentric circles
On convex shape wire hole be staggered；Using this plate spinning fiber cooling and solidifying mode be that outer shroud is blown, the ends a outwardly, to obtain
Obtain the inhomogeneous cooling solidification effect of distribution gradient on every silk cross section.
Embodiment 4：A kind of manufacturing method of different contraction terylene low stretch yarn, using following steps：
A mass fraction, by the magnesium hydroxide crystal whisker that organises of a diameter of 5um of 2 parts of characterization parameters, length 25um, 2 parts) are pressed
Organise nano imvite, 2 parts of barium sulphate nano powders that organise, 75 parts of ethylene glycol EG, 8 parts of 1,3-PD PDO, 15 part 1,
4- butanediols BDO, 6 parts of P-hydroxybenzoic acid, 0.3 part of sodium germanate mixing, mixed solution is in 70 DEG C of closed grindings of agitating ball mill
Reaction 4 hours, obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 16 by 2 parts of draw ratios:The 1.5 wollastonite nano whiskers fiber that organises, 1.5 part of 800 mesh
Mica powder, 10 parts of molecular weight are 15000 polyethylene glycol PEG, 10 parts of 1,3-PD PDO, 15 parts of 1,4-butanediol BDO, 0.4
Part 1098,0.4 part of antimony glycol of high-temperature antioxidant, 0.3 part of protonating agent phosphoric acid mixing, closed stirring ball-milling under the conditions of 70 DEG C
Machine griding reaction 2 hours, obtains a kind of different contraction compound accelerant, keeps the temperature and waits for when 70 DEG C of vacuum dehydrations to water content are less than 1%
With；
C) press mass fraction, be prepared by step A) 2 parts of different compound alcoholic solutions of contraction mixed with 8 parts of ethylene glycol, then with 16
Part terephthalic acid component is matched, and mashing is blended, and is heated to 70 DEG C of vacuum dehydrations, is added when water content is less than 1%
To polyplant, esterification is carried out at 250 DEG C of temperature, pressure 0.15MPa 2 hours, in normal pressure esterification-polycondensation phase, even
It is continuous to be added 2 parts and prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C and react 50 minutes, then vacuumize,
283 DEG C of temperature, absolute pressure 100Pa or less carry out polycondensation reaction, until melt viscosity discharges after meeting the technological requirement of post-processing,
A kind of different contraction modified poly ester is made；
D step C) is used to be made) different contraction modified poly ester for raw material, melt is sprayed by convex shape spinneret orifice, pass through
Then by the inhomogeneous cooling curing mode of distribution gradient preoriented yarn is made, then pass through in ultrashort zone of silence below spinneret
It crosses low temperature texturing craft and a kind of different contraction terylene low stretch yarn is made；
The sectional dimension of convex shape wire hole described in the present embodiment a is 0.06mm, h 0.48mm, b 0.18mm；Described
Convex shape spinneret orifice is distributed on spinneret in concentric circles, and convex shape spinneret centerline hole is directed toward spinneret center, different concentric
Convex shape wire hole on circle is staggered；Using this plate spinning fiber cooling and solidifying mode be that outer shroud is blown, the ends a outwardly, to
Obtain the inhomogeneous cooling solidification effect of distribution gradient on every silk cross section.
Embodiment of the present invention is not limited to embodiment described above, by aforementioned disclosed numberical range, just
Arbitrary replacement is carried out in specific embodiment, and so as to obtain numerous embodiment, this is not enumerated.
Claims (6)
1. a kind of manufacturing method of different contraction terylene low stretch yarn, it is characterised in that the manufacturing method uses following steps：
A mass fraction) is pressed, by the magnesium hydroxide crystalline substance that organises of a diameter of 0.2-5um of 1-2 parts of characterization parameters, length 10-25um
Must, the 1-2 parts of nano imvites that organise, the 1-2 parts of barium sulphate nano powders that organise, 65-75 parts of ethylene glycol EG, 5-8 parts 1,3-
PDO, 10-15 parts of 1,4-butanediol BDO, 4-6 part P-hydroxybenzoic acid of propylene glycol, 0.1-0.3 parts of sodium germanate mixing, mixed solution
Closed griding reaction 2-4 hours in 70 DEG C of agitating ball mills, a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use are obtained；
B mass fraction) is pressed, is 14-16 by 1-2 parts of draw ratios:The wollastonite nano whiskers fiber that organises of 0.5-1.5,1-2 parts
800 mesh mica powders, PEG, 8-10 parts of 1,3-PD PDO, 10-15 part Isosorbide-5-Nitraes-of polyethylene glycol that 8-10 parts of molecular weight are 15000
Butanediol BDO, 0.2-0.4 part high-temperature antioxidant 1098,0.2-0.4 parts of antimony glycols, 0.1-0.3 parts of protonating agent phosphoric acid are mixed
It closes, closed agitating ball mill griding reaction 1-2 hours under the conditions of 70 DEG C, obtains a kind of different contraction compound accelerant, 70 DEG C true
Heat preservation for standby use when sky dehydration to water content is less than 1%；
C) press mass fraction, it is prepared by step A) the compound alcoholic solution of the different contraction of 2-4 parts mixed with 6-8 parts of ethylene glycol, then with 15-
18 parts of terephthalic acid components are matched, and mashing is blended, and are heated to 70 DEG C of vacuum dehydrations, are added when water content is less than 1%
Enter to polyplant, esterification 2 hours is carried out at 250 DEG C of temperature, pressure 0.15MPa, in normal pressure esterification-polycondensation phase,
1-2 parts are continuously added to be prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C and react 50 minutes, then take out true
Sky carries out polycondensation reaction in 283 DEG C of temperature, absolute pressure 100Pa or less, and a kind of different contraction modified poly ester is made；
D) use made of step C that different contraction modified poly ester is raw material, melt is sprayed by convex shape spinneret orifice, by spinneret
Then by the inhomogeneous cooling curing mode of distribution gradient preoriented yarn is made, using low temperature in the ultrashort zone of silence of lower section
A kind of different contraction terylene low stretch yarn is made in texturing craft.
2. a kind of manufacturing method of different contraction terylene low stretch yarn according to claim 1, it is characterised in that：Step D) in
Spinneret includes plate body (1) and more than one spinneret orifice (2), and the spinneret orifice (2), which is run through, to be arranged on plate body (1), each
It arranges in more than one concentric circles between spinneret orifice (2), the spinneret orifice (2) is in convex shape.
3. a kind of manufacturing method of different contraction terylene low stretch yarn according to claim 2, it is characterised in that：Same concentric circles
On spinneret orifice (2) between uniform intervals be arranged, the spinneret orifice (2) on each adjacent concentric circles is staggered.
4. a kind of manufacturing method of different contraction terylene low stretch yarn according to claim 2 or 3, it is characterised in that：It is described convex
The spinneret orifice (2) of font is axially symmetric structure, and symmetry axis is directed toward the center of circle of concentric circles.
5. a kind of manufacturing method of different contraction terylene low stretch yarn according to claim 2 or 3, it is characterised in that：It is described convex
The spinneret orifice (2) of font includes a short side rectangular opening (21) and a long side rectangular opening (22), the short side rectangular opening (21)
Including lateral short side (21a) and longitudinal short side (21b), the long side rectangular opening (22) includes lateral long side (22a) and longitudinal length
Side (22b), the transverse direction short side (21a) and lateral long side (22a) are bonded setting, and described longitudinal direction short side (21b) vertical transverse is long
Side (22a) is arranged, and longitudinal short side (21b) is identical with longitudinal long side (22b) length and range is 0.125~0.6mm, the cross
It is longer than lateral short side (21a) to long side (22a), the length range of the transverse direction short side (21a) is 0.04~0.1mm, the cross
It is 0.06~0.3mm to the length range of long side (22a).
6. a kind of manufacturing method of different contraction terylene low stretch yarn, it is characterised in that the manufacturing method uses following steps：
A mass fraction, by the magnesium hydroxide crystal whisker that organises of a diameter of 2.6um of 1.5 parts of characterization parameters, length 13um, 1.5) are pressed
Part organises nano imvite, 1.5 parts of barium sulphate nano powders that organise, 70 parts of ethylene glycol EG, 6 parts of 1,3-PD PDO, and 10
Part 1,4-butanediol BDO, 5 parts of P-hydroxybenzoic acid, 0.2 part of sodium germanate mixing, mixed solution are closed in 70 DEG C of agitating ball mills
Griding reaction 3 hours obtains a kind of compound alcoholic solution of different contraction, 70 DEG C of heat preservation for standby use；
B mass fraction) is pressed, is 15 by 1.5 parts of draw ratios:The 1 wollastonite nano whiskers fiber that organises, 1.5 part of 800 mesh mica
Powder, 8 parts of molecular weight are 15000 polyethylene glycol PEG, 8 parts of 1,3-PD PDO, 15 parts of 1,4-butanediol BDO, 0.3 part of high temperature
1098,0.2 part of antimony glycol of antioxidant, 0.2 part of protonating agent phosphoric acid mixing, closed agitating ball mill grinding under the conditions of 70 DEG C
Reaction 1.5 hours obtains a kind of different contraction compound accelerant, heat preservation for standby use when 70 DEG C of vacuum dehydrations to water content are less than 1%；
C) press mass fraction, it is prepared by step A) 3 parts of different compound alcoholic solutions of contraction mixed with 7 parts of ethylene glycol, then with 16 parts it is right
Terephthalic acid component is matched, and mashing is blended, and is heated to 70 DEG C of vacuum dehydrations, is added to when water content is less than 1% poly-
It attaches together and sets, esterification is carried out at 250 DEG C of temperature, pressure 0.15MPa 2 hours, it is continuous to add in normal pressure esterification-polycondensation phase
Enter 1.5 parts to be prepared by step B) different contraction compound accelerant, and be warming up to 270 DEG C react 50 minutes, then vacuumize, in temperature
283 DEG C of degree, absolute pressure 100Pa or less carry out polycondensation reaction, and a kind of different contraction modified poly ester is made；
D step C) is used to be made) different contraction modified poly ester for raw material, melt is sprayed by convex shape spinneret orifice, by spinneret
Then by the inhomogeneous cooling curing mode of distribution gradient preoriented yarn is made, using low in ultrashort zone of silence below plate
A kind of different contraction terylene low stretch yarn is made in warm texturing craft.
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| CN109537088B (en) * | 2018-11-24 | 2021-03-23 | 开氏石化股份有限公司 | Method for manufacturing different-shrinkage polyester low-stretch yarns |
| CN110952167A (en) * | 2019-12-07 | 2020-04-03 | 杭州东南纺织有限公司 | Method for manufacturing different-shrinkage polyester low-stretch yarns |
| CN115559014B (en) * | 2022-09-15 | 2024-03-08 | 浙江盛元化纤有限公司 | Preparation method of antistatic wool-like polyester filaments |
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| CN101434691A (en) * | 2008-12-11 | 2009-05-20 | 江苏新民纺织科技股份有限公司 | Different-shrinkage copolyester and preparation method thereof |
| CN102605498B (en) * | 2012-03-31 | 2014-12-10 | 浙江正凯化纤有限公司 | Method for processing different shrinkage color-mixed terylene air deformation yarns |
| CN103469345B (en) * | 2013-09-27 | 2015-05-27 | 苏州大学 | Co-polyester melt direct spun differential shrinkage composite fiber and method for preparing same |
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Effective date of registration: 20180620 Address after: 311247 Hongyang Road, Yunong Town, Xiaoshan District, Hangzhou, Zhejiang, 98 Applicant after: Rong Xiang Chemical Fiber Co., Ltd. Address before: 311247 Hongyang Road, Yunong Town, Xiaoshan District, Hangzhou, Zhejiang, 98 Applicant before: Rongsheng Petrochemical Co., Ltd. |
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