CN102517738B - Cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn and preparation method thereof - Google Patents
Cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn and a preparation method thereof. A core layer of the composite modified continuous filament yarn is made of cellulose fibers, a sheath layer of the composite modified continuous filament yarn is made of synthetic filament fibers, interfaces of the core layer and the sheath layer are formed by mutually winding the cellulose fibers with the synthetic filament fibers, and the synthetic filament fibers in the middle of the sheath layer form a filament circle on the surface of the composite modified continuous filament yarn. The preparation method includes: firstly, subjecting the synthetic fiber raw materials to melt spinning to prepare pre-oriented yarns; secondly, drafting the synthetic fiber pre-oriented yarns and using a hot roll to shape the synthetic fiber pre-oriented yarns to obtain two types of synthetic fiber filaments which are different in tensile property and heat shrinkage; and thirdly, using pairwise rollers to control the two types of the synthetic fiber filaments and the cellulose fiber filaments, feeding the synthetic fiber filaments and the cellulose fiber filaments into an air jet texturing device with double air passages according to a certain over-feeding rule for texturing, using a heating box for heating, and winding for forming so that the cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn is prepared.
Description
Technical field
The present invention relates to a kind of cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn and preparation method thereof.
Background technology
Different fibrous materials, due to its difference of constituent separately, and show different physical properties.Adopt different fiber blends to prepare BLENDED FABRIC, can learn from other's strong points to offset one's weaknesses, utilize the performance advantage of various fibers, make up the performance deficiency that another kind of fiber brings, thereby acquire the good fabric panel of combination property.Textile enterprise develops and produces various BLENDED FABRIC products at present, to meet the various needs in market.But the performance after the blending of multiple fiber is not only relevant with fiber species, and the structure distribution state forming with various fibers in blended yarn is relevant.The preparation method of blended yarn comprises: (1) different cultivars staple fibre carries out blended spinning at cotton spinning spinning unit or wool spinning spinning unit, the blended yarn structure that can obtain mixing; (2) adopt the fine spining machine in cotton spinning spinning unit or wool spinning spinning unit, by long filament and short fibre yarn according to burden spinning system, acquire the cladded yarn of staple fibre cladding long filament, (3) adopt the fine spining machine in cotton spinning spinning unit or wool spinning spinning unit, long filament and staple fibre yarn are spinned side by side, acquire the yarn that long filament and staple fibre kink mutually; (4) adopt the fine spining machine in cotton spinning spinning unit or wool spinning spinning unit, staple fibre and staple fibre yarn are spinned side by side, acquire the yarn that different staple fibres and staple fibre kink mutually; (4) adopt doubling winder or doubling frame to carry out and close twisting forming to long filament or the short fibre yarn of two kinds or above different fibrous materials; (5) utilize chemical fiber filament to add the synthetic thread fiber of bullet equipment processing different performance compound, acquire how different MULTIPLE COMPOSITE filament yarn; (6)) utilize the long filament of chemical fiber filament air-texturing equipment processing different performance, acquire the different synthetic thread fibers filament yarn of mutually evenly entwining to obtain.There is not yet the relevant report of utilizing chemical fiber filament air-texturing equipment processed cellulose fiber/synthetic fiber core-sheath filament yarn.
Summary of the invention
The object of this invention is to provide a kind of cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn and preparation method thereof.
Cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn provided by the present invention, its sandwich layer is cellulosic filaments fiber, and cortex is synthetic thread fiber, and the interface of described sandwich layer and cortex is wound mutually by cellulosic filaments and synthetic thread fiber; In described cortex part synthetic fiber filament on composite deformation filament yarn surface self radially looping around forming wire ring.
In this cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn, a part of synthetic fiber filament is for " axially " coated sandwich layer, and another part synthetic fiber are at formed cortical surface self " radially looping around " formation wire ring.
In above-mentioned core-skin formula composite deformation filament yarn, the mass content of cellulosic filaments fiber is 20-50%, and the mass content of synthetic thread fiber is 50-80%.
The fiber of synthetic thread described in the present invention refers to one or both the compound in polyamide filaments fiber and polyester filament fiber.This synthetic thread fiber can be monofilament or multifilament; Its monofilament fineness specification can be 0.1-3.0dtex (dtex is dtex, refers to the grams of the fibre bundle that ten thousand metres are long), and multifilament fineness specification can be 30-150dtex.Described cellulosic filaments fiber refers to one or more the compound in jute pulp viscose fiber filament, bamboo pulp viscose fiber long filament, cotton linter pulp viscose fiber filament and the wood pulp viscose fiber filament obtaining by dry method and/or the wet method of solution spinning.This cellulosic filaments fiber also can be monofilament or multifilament, and its single fiber fineness specification can be 1.0-3.0dtex, and multifilament fineness specification can be 50-150dtex.
The method of preparing above-mentioned cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn, comprises the steps:
(1) synthetic fiber raw material are prepared into pre-oriented yarn through melt spinning;
(2) synthetic fiber pre-oriented yarn step (1) being obtained carries out drawing-off by different drawing-off multiplying powers respectively, and through the processing that formalizes of different temperatures hot-rolling, obtain having synthetic thread fiber A and the B of different stretch performance, different percent thermal shrinkages;
(3) the synthetic thread fiber A of two kinds of different performance features that step (2) obtained and B and cellulosic filaments fiber are respectively through the paired roller control of three pairs of different speed ratios, form after different separately over feed rate(OFR)s, merge the two gas channel air jet texturing devices of feeding and carry out deformation process, obtain cellulose fibre/synthetic fiber core-skin formula composite deformation long filament;
(4) cellulose/synthetic fiber composite deformation long filament step (3) being acquired, through heating cabinet heating, obtains cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn.
In addition, described method also comprises that the cellulose/synthetic fiber composite deformation filament yarn to obtaining carries out the step of winding shaping.
Said method, described in step (2), drawing-off multiplying power is 1.40-1.70; The temperature of described hot-rolling is 90-180 DEG C; The percent thermal shrinkage of described synthetic thread fiber A and B is 3-25%.
Synthetic thread fiber A and B described in step (3) are divided into the two gas channel air jet texturing devices of synthetic thread fiber feeding of two strands of different performances, and wherein, one synthetic thread fiber at the uniform velocity feeds, and its over feed rate(OFR) is 1.5-2.5; Another burst of synthetic thread Fiber Velocity feeding, its over feed rate(OFR) is 1.3-2.0, the change of fiber feeding speed is by reciprocating conducting wire pole control.The over feed rate(OFR) of the two gas channel air jet texturing devices of described cellulosic filaments fiber feeding is 1.10-1.30.
Primary air path and yarn path in described pair of gas channel air jet texturing device of step (3) are perpendicular, and secondary air path and yarn path are 70 ° of angles.
The air operating air pressure scope of described pair of gas channel air jet texturing device is 1-5MPa, is 1: 3 respectively by the control air pressure ratio of secondary air path and primary air path.
Described in step (4), the temperature range of heating cabinet is 100-160 DEG C; Be 1-0.2 minute heat time heating time.
The present invention has following beneficial effect:
The cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn that the present invention is prepared, because yarn sandwich layer is cellulose fibre, has good moisture-absorption water-retention performance; The outer field synthetic fiber of yarn, have ensured the dry and comfortable property that contacts with human body skin to make to utilize its moisture absorption of the prepared fabric of this yarn and dry and comfortable performance to obtain good unification; Compared with existing cladded yarn technology of preparing, between cellulose fibre and synthetic fiber interface, there is good kinking, avoid the slippage between cellulose fibre and synthetic fiber to separate, yarn strength is high.Can be used as the good garment material such as sportswear, physical training clothes.
Detailed description of the invention
Below by specific embodiment, method of the present invention is described, but the present invention is not limited thereto.
Experimental technique described in following embodiment, if no special instructions, is conventional method; Described reagent and material, if no special instructions, all can obtain from commercial channels.
Embodiment 1, prepare polyamide/Chinese fiber crops viscose acetal fibre composite deformation filament yarn
(1) preparing specification by the conventional spinning technique of polyamide is 75dtex/50f polyamide filaments pre-oriented yarn.
(2) the two bundle 75dtex/50f polyamide filaments pre-oriented yarns of being prepared by step (1) feed respectively in 1# drawing rollers group and 2# drawing rollers group and heat drawing-off processing, prepare polyamide drafted fibre A, the B with different percent thermal shrinkages.Wherein 1# drawing rollers group drawing-off multiplying power is 1.59,150 DEG C of the hot rod temperature of drawing-off; 2# drawing rollers ancestral drawing-off multiplying power is 1.350, and the hot rod temperature of drawing-off is 90 DEG C.The percent thermal shrinkage of prepared polyamide drafted fibre A is 5.1%, and the percent thermal shrinkage of polyamide drafted fibre B is 16.2%.
(3) the polyamide drafted fibre A being prepared by step (2) is through in the two gas channel air-texturing devices of roller 4# feeding, and its over feed rate(OFR) is 1.60; Polyamide drafted fibre B prepared by step (2) is through in the two gas channel air-texturing devices of roller 4# feeding, and its over feed rate(OFR) is 1.35; By 50dtex/30f Chinese waste of flax core viscose acetal fibre long filament, through in the two gas channel air-texturing devices of roller 4# feeding, its over feed rate(OFR) is 1.12.
A polyamide drafted fibre, polyamide drafted fibre B and Chinese waste of flax core viscose acetal fibre long filament are fed to two gas channel air-texturing devices simultaneously, carry out air-texturing processing at two gas channel air-texturing devices, acquire Chinese waste of flax core viscose acetal fibre/polyamide fiber composite deformation long filament, wherein, the mass content of Chinese waste of flax core viscose acetal fibre long filament is 29.2%, and the mass content of polyamide filaments fiber is 70.8%.Primary air path and yarn path in described pair of gas channel air jet texturing device are perpendicular, and secondary air path and yarn path are 70 ° of angles.Wherein the air pressure of main air flow passage is 3.50MPa, and the air pressure of secondary air passage is 1.16MPa.
(4) step (3) is acquired to Chinese waste of flax core viscose acetal fibre/polyamide fiber composite deformation long filament, import (130 DEG C of heating cabinet temperature) in heating cabinet through a pair of roller 5# and heat 1 minute; Chinese waste of flax core viscose acetal fibre/polyamide fiber composite deformation long filament is negative drawing-off state, and negative degree of draft is 1.5, forms Chinese waste of flax core viscose acetal fibre/polyamide fiber core-skin formula composite deformation filament yarn.
(5) Chinese waste of flax core viscose acetal fibre/polyamide fiber core-skin formula composite deformation filament yarn step (4) being acquired, through a pair of roller 6# traction, and winding shaping.
Utilize fabric prepared by above-mentioned yarn to carry out wicking performance test.This fabric is placed on wicking testing arrangement, and fabric direction is immersed in the water perpendicular to the water surface and one end, and liquid water produces wicking along fabric direction, and after wicking is stable, the measure wicking height of test fabric is 21.5cm; It is 86% that test fabric absorbs moisture weight rate.
The above-mentioned fabric through wicking test is tiled on a platform, adopt filter paper to be laid on this fabric, through pressing gently after three times in the above with hand, the filter paper weight increase of weighing is 0.81%.Can find out, this fabric has good wicking and water conservation effect, still can keep the dry of fabric face simultaneously.
Embodiment 2, prepare polyester/Chinese fiber crops viscose acetal fibre composite deformation filament yarn
(1) preparing specification by the conventional spinning technique of polyester is 75dtex/70f polyester filament pre-oriented yarn.
(2) the two bundle 75dtex/70f polyester filament pre-oriented yarns of being prepared by step (1) feed respectively in 1# drawing rollers group and 2# drawing rollers group and heat drawing-off processing, prepare polyester drafted fibre A, the B with different percent thermal shrinkages.Wherein 1# drawing rollers group draw ratio is 1.645,160 DEG C of the hot rod temperature of drawing-off; 2# drawing rollers ancestral draw ratio is 1.350, and the hot rod temperature of drawing-off is 90 DEG C.The percent thermal shrinkage of prepared polyester drafted fibre A is 3.2%, and the percent thermal shrinkage of polyester drafted fibre B is 15.5%.
(3) with embodiment 1 step (3), wherein Chinese waste of flax core viscose acetal fibre long filament specification is 70dtex/30f, in two gas channel air-texturing devices, the air pressure of main air flow passage is 4.00MPa, and the air pressure of secondary air passage is 1.30MPa.
(4) step (3) is acquired to Chinese waste of flax core viscose acetal fibre/polyester fiber composite deformation long filament (wherein, the mass content of Chinese waste of flax core viscose acetal fibre long filament is 36.6%, the mass content of polyamide filaments fiber is 63.4%), import in heating cabinet 160 DEG C of heating of heating cabinet temperature 0.2 minute through a pair of roller 5#; Chinese waste of flax core viscose acetal fibre/polyester fiber composite deformation long filament is negative drawing-off state, and negative degree of draft is 1.7, forms Chinese waste of flax core viscose acetal fibre/polyester fiber core-skin formula composite deformation filament yarn.
(5) Chinese waste of flax core viscose acetal fibre/polyester fiber core-skin formula composite deformation filament yarn step (4) being acquired, through a pair of roller 6# traction, and winding shaping.
Utilize the prepared fabric of this yarn to carry out wicking performance test.This fabric is placed on wicking testing arrangement, and fabric direction is immersed in the water perpendicular to the water surface and one end, and liquid water produces wicking along fabric direction, and after wicking is stable, the measure wicking height of test fabric is 20.8cm; It is 95% that test fabric absorbs moisture weight increase.
The above-mentioned fabric through wicking test is tiled on a platform, adopt filter paper to be laid on this fabric, through pressing gently after three times in the above with hand, the filter paper weight increase of weighing is 1.15%.Can find out, this fabric has good wicking and water conservation effect, still can keep the dry of fabric face simultaneously.
Embodiment 3, prepare polyamide/wood pulp viscose acetal fibre composite deformation filament yarn
Preparation method's basic step is identical with embodiment 1, and its technological parameter exists following variation: the specifications parameter of polyamide filaments is: 150dtex/144f; The specifications parameter of wood pulp viscose filament yarn fiber is 150dtex/50f.The over feed rate(OFR) of polyamide filaments A is 2.5%, and it is 1.45% that polyamide filaments B ultrasonic is fed rate, and wood pulp viscose filament yarn fiber over feed rate(OFR) is 1.3%.
Claims (8)
1. a cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn, its sandwich layer is cellulosic filaments fiber, and cortex is synthetic thread fiber, and the interface of described sandwich layer and cortex is wound mutually by cellulosic filaments fiber and synthetic thread fiber; In described cortex, part synthetic fiber filament forms wire ring on composite deformation filament yarn surface;
The preparation method of described cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn, comprises the steps:
(1) synthetic fiber raw material are prepared into pre-oriented yarn through melt spinning;
(2) synthetic fiber pre-oriented yarn step (1) being obtained carries out drawing-off by different drawing-off multiplying powers respectively, and through the processing that formalizes of different temperatures hot-rolling, obtains having synthetic thread fiber A and the B of different stretch performance, different percent thermal shrinkages;
(3) the synthetic thread fiber A of two kinds of different performance features that step (2) obtained and B and cellulosic filaments fiber are respectively through the paired roller control of three pairs of different speed ratios, form after different separately over feed rate(OFR)s, merge the two gas channel air jet texturing devices of feeding and carry out deformation process, obtain cellulose fibre/synthetic fiber core-skin formula composite deformation long filament;
(4) cellulose/synthetic fiber composite deformation long filament step (3) being acquired, through heating cabinet heating, obtains cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn;
Synthetic thread fiber A and B described in step (3) are divided into two strands of two gas channel air jet texturing devices of feeding, and wherein, one synthetic thread fiber at the uniform velocity feeds, and its over feed rate(OFR) is 1.5-2.5; Another burst of synthetic thread Fiber Velocity feeding, its over feed rate(OFR) is 1.3-2.0, the change of fiber feeding speed is by reciprocating conducting wire pole control; The over feed rate(OFR) of the two gas channel air jet texturing devices of described cellulosic filaments fiber feeding is 1.10-1.30.
2. cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn according to claim 1, it is characterized in that: in described core-skin formula composite deformation filament yarn, the mass content of cellulosic filaments fiber is 20-50%, and the mass content of synthetic thread fiber is 50-80%.
3. cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn according to claim 1 and 2, is characterized in that: described synthetic thread fiber refers to one or both the compound in polyamide filaments fiber and polyester filament fiber; Described synthetic thread fiber is monofilament or multifilament; Its monofilament fineness specification is 0.1-3.0dtex, and multifilament fineness specification is 30-150dtex;
Described cellulosic filaments fiber refers to one or more the compound in jute pulp viscose fiber filament, bamboo pulp viscose fiber long filament, cotton linter pulp viscose fiber filament and the wood pulp viscose fiber filament obtaining by dry method and/or the wet method of solution spinning; Described cellulosic filaments fiber is monofilament or multifilament, and its single fiber fineness specification is 1.0-3.0dtex, and multifilament fineness specification is 50-150dtex.
4. prepare in claim 1-3 the method for cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn described in any one, comprise the steps:
(1) synthetic fiber raw material are prepared into pre-oriented yarn through melt spinning;
(2) synthetic fiber pre-oriented yarn step (1) being obtained carries out drawing-off by different drawing-off multiplying powers respectively, and through the processing that formalizes of different temperatures hot-rolling, obtains having synthetic thread fiber A and the B of different stretch performance, different percent thermal shrinkages;
(3) the synthetic thread fiber A of two kinds of different performance features that step (2) obtained and B and cellulosic filaments fiber are respectively through the paired roller control of three pairs of different speed ratios, form after different separately over feed rate(OFR)s, merge the two gas channel air jet texturing devices of feeding and carry out deformation process, obtain cellulose fibre/synthetic fiber core-skin formula composite deformation long filament;
(4) cellulose/synthetic fiber composite deformation long filament step (3) being acquired, through heating cabinet heating, obtains cellulose fiber/synthetic fiber sheath core type composite modified continuous filament yarn;
Synthetic thread fiber A and B described in step (3) are divided into two strands of two gas channel air jet texturing devices of feeding, and wherein, one synthetic thread fiber at the uniform velocity feeds, and its over feed rate(OFR) is 1.5-2.5; Another burst of synthetic thread Fiber Velocity feeding, its over feed rate(OFR) is 1.3-2.0, the change of fiber feeding speed is by reciprocating conducting wire pole control; The over feed rate(OFR) of the two gas channel air jet texturing devices of described cellulosic filaments fiber feeding is 1.10-1.30.
5. method according to claim 4, is characterized in that: described in step (2), drawing-off multiplying power is 1.40-1.70; The temperature of described hot-rolling is 90-180 DEG C; The percent thermal shrinkage of described synthetic thread fiber A and B is 3-25%.
6. method according to claim 4, is characterized in that: primary air path and yarn path in described pair of gas channel air jet texturing device of step (3) are perpendicular, and secondary air path and yarn path are 70 ° of angles.
7. method according to claim 4, is characterized in that: the air operating air pressure scope of described pair of gas channel air jet texturing device is 1-5MPa, is 1:3 respectively by the control air pressure ratio of secondary air path and primary air path.
8. method according to claim 4, is characterized in that: described in step (4), the temperature range of heating cabinet is 100-160 DEG C; Be 1-0.2 minute heat time heating time.
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| CN104532429A (en) * | 2014-12-09 | 2015-04-22 | 常熟涤纶有限公司 | Mould-proof colored polyester high-tenacity yarn |
| CN107502979B (en) * | 2017-07-21 | 2020-04-17 | 阜南县大自然工艺品有限公司 | Fine bamboo filament and high molecular compound blending material with skin-core structure and preparation method thereof |
| CN110055647B (en) * | 2019-05-06 | 2024-04-16 | 江南大学 | Negative poisson ratio composite yarn with reverse double-layer wrapping structure, four-channel hollow spindle spinning device and control method thereof |
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