CN101718024A - Insulation flocculus and manufacture method thereof - Google Patents
Insulation flocculus and manufacture method thereof Download PDFInfo
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- CN101718024A CN101718024A CN200910262140A CN200910262140A CN101718024A CN 101718024 A CN101718024 A CN 101718024A CN 200910262140 A CN200910262140 A CN 200910262140A CN 200910262140 A CN200910262140 A CN 200910262140A CN 101718024 A CN101718024 A CN 101718024A
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Abstract
The invention relates to insulation flocculus which is made by 20-80 percent by weight of superfine denier fiber, 10-70 percent by weight of fine denier fiber, 5-30 wt% of tacky fiber and 0-5 wt% of bond. The insulation flocculus is made by adopting the following steps of: loosening and mixing the fiber raw materials; carding and lapping to form a fiber web; carrying out disorder traction on the fiber web to enable the fiber web to form a solid meshy across structure; spraying the bond on the two faces of the fiber web; heating and baking the fiber web to enable the tacky fiber to bond the fiber around and to solidify the bond. In the invention, due to the adoption of the superfine denier fiber and the fine denier fiber, heat conduction can be effectively reduced, cross ventilation in the space can be prevented or reduced, and the insulation property of the insulation flocculus is improved. In addition, due to the adoption of the tacky fiber and the bond, the fill power and the compression resilience of the insulation flocculus can be improved, and the fill power and the compression resilience of the insulation flocculus are higher through disorder traction.
Description
Technical field
The present invention relates to a kind of insulation flocculus of making by superfine fibre, and the manufacture method of this insulation flocculus.
Background technology
Insulation flocculus is the main auxiliary material of clothes, mainly plays winter protection, effect such as warming, and its quality is soft usually.The material that traditional insulation flocculus adopts has cotton-wool, wool, cashmere and eider down etc. natural heat insulating material formed, these natural heat insulating material formed in, warmth retention property is best surely belongs to eider down, secondly is cashmere, be wool once more, cotton-wool natural heat insulating material formed in warmth retention property be the poorest.Most natural heat insulating material formed moisture absorption ratios are very high, and resilience is poor, and in use for some time, the warmth retention property of insulation flocculus can descend significantly, therefore in the evolution of insulation flocculus, and natural heat insulating material formedly constantly be eliminated.Natural heat insulating material formed in, eider down is made up of suede nuclear, suede branch, suede sprig, the fineness of its medium staple sprig very thin (having only 2～15 μ m) makes the still air of eider down absorption very many; The suede branch is thicker relatively, and elasticity is very good, makes the bulking intensity of eider down and resilience very good; The suede branch becomes umbrella length on suede nuclear.This natural structure of eider down has been brought up its excellent thermal property, and good bulking intensity and resilience, therefore also be applied in the down jackets now always, but eider down exist the price height, easily bore suede, easily mouldy, easily damage by worms, be inconvenient to wash, degradation problem under the warmth retention property after the moisture absorption, and be subjected to the influence of bird flu problem, its application, development are restricted.
Along with development of science and technology, synthetic heat insulating material formed kind is more and more, because of its sanction property, washability, non-hygroscopic property, in light weight, advantage such as thickness is little, replacement gradually natural heat insulating material formed.By the synthetic heat insulating material formed insulation flocculus of making gum sprayed cotton, imitative silk flosssilk wadding etc. are arranged at present.
The gum sprayed cotton of Xiao Shouing, imitative silk flosssilk wadding are all mainly made by the terylene regular staple (as the terylene regular staple of 2.2dtex, 3.3dtex, 5.5dtex) at thick dawn and 3-D crimped fiber (as the 3-D crimped fiber of 6.7dtex, 7.8dtex) in the market, although its bulking intensity and resilience are better, but the space is bigger between the fiber, when having wind and internal-external temperature difference big, cross-ventilation is comparatively serious in the insulation flocculus, and therefore warming effect still remains to be improved.In addition because the rigidity of terylene is fine, and use be thicker fiber, therefore the insulation flocculus feel of making is harder, does not meet the demand that people wish that insulation flocculus is soft comfortable.
Summary of the invention
It is good and have higher bulking intensity and elastic insulation flocculus that technical problem to be solved by this invention provides a kind of thermal property, and the manufacture method of this insulation flocculus.The technical scheme that adopts is as follows:
On the one hand, the invention provides a kind of insulation flocculus, this insulation flocculus is made by the superfine Denier fibre of 20-80% (weight), the fine count fiber of 10-70% (weight), the viscose fibre of 5-30% (weight) and the adhesive of 0-5% (weight).
The fibre fineness of preferred above-mentioned superfine Denier fibre is 0.11-1.1dtex (a branch Tekes); The length of preferred above-mentioned superfine Denier fibre is 32-64mm (millimeter).Above-mentioned superfine Denier fibre can be the mixture of one or more fibers in super fine denier polyester fiber, superfine denier polypropylene fibers, superfine denier polyamide fiber and the superfine denier polypropylene nitrile fiber.Above-mentioned superfine Denier fibre can contain silicone oil, also can not contain silicone oil.The consumption of preferred above-mentioned superfine Denier fibre accounts for the 40-60% of raw material gross weight.
The fibre fineness of preferred above-mentioned fine count fiber is 1.2-5.5dtex, and more preferably the fibre fineness of above-mentioned fine count fiber is 1.2-3.3dtex; The length of preferred above-mentioned fine count fiber is 32-64mm (millimeter).Above-mentioned fine count fiber can be one or more the mixture in microdenier polyester fibers, fine denier polypropylene fibers, thin denier polyamide fiber and the fine denier polypropylene nitrile fiber.Above-mentioned fine count fiber can contain silicone oil, also can not contain silicone oil.Above-mentioned fine count fiber can be two-dimensional crimp fiber or 3-D crimped fiber.The consumption of preferred above-mentioned fine count fiber accounts for the 30-40% of raw material gross weight.
The fibre fineness of preferred above-mentioned viscose fibre is 1.1-4.4dtex; The length of preferred above-mentioned viscose fibre is 32-64mm.Above-mentioned viscose fibre can be a kind of in low melting point polyester fiber (polyester fiber has two kinds of low melting point and high-melting-points, and the present invention adopts low melting point polyester fiber wherein), polypropylene fibre and the polypropylene polyester complex fiber or the mixture of multiple fiber wherein.The consumption of preferred above-mentioned viscose fibre accounts for the 15-20% of raw material gross weight.
Above-mentioned adhesive does not preferably contain the environment-friendly adhesive (as vinegar third adhesive, copolymer acrylate emulsion binding agent) of formaldehyde.Preferred above-mentioned adhesive consumption is the 1-3% of raw material gross weight.
Preferred above-mentioned insulation flocculus adopts following method to make, and this method comprises the steps: superfine Denier fibre, fine count fiber and viscose fibre shredding and mixes; Carry out combing, lapping then, form fibre web; Then fibre web is carried out mixed and disorderly drawing-off, make fibre web form solid netted chi structure; Follow two sides spray adhesive to fibre web; Heating is cured to fibre web then, makes the top layer fusing of viscose fibre at least and with the bonding of the fiber around it, adhesive is solidified.
In the practical application, when the fibre web heating is cured, should guarantee that superfine Denier fibre and fine count fiber can not melt, that is to say that stoving temperature should be lower than the fusing point of superfine Denier fibre and fine count fiber.
Preferably fibrous raw material is carried out twice combing, lapping.
Preferably after curing, optical processing is scalded on the insulation flocculus surface, the fiber that the insulation flocculus surface is upright plates, and at the insulation flocculus surface filming.
On the other hand, the invention provides the manufacture method of above-mentioned insulation flocculus, this manufacture method comprises the steps: successively
(1) with superfine Denier fibre, fine count fiber and viscose fibre shredding and mixing;
(2) fibrous raw material that mixes is carried out combing, lapping, form fibre web;
(3) fibre web is carried out mixed and disorderly drawing-off, make fibre web form solid netted chi structure;
(4) to the two sides spray adhesive of fibre web;
(5) heating is cured to fibre web, makes the top layer fusing of viscose fibre at least and with the bonding of the fiber around it, adhesive is solidified, and obtains insulation flocculus.
Adopt single cylinder, two pass husband in the used carding equipment of above-mentioned steps (2), card clothing adopts ultra-fine toothing (space width of preferred card clothing is 1.8mm), fine count fiber and superfine Denier fibre combing can be opened.In the above-mentioned steps (2), a lapping can be carried out, also the multilayer lapping can be carried out the fibrous raw material after the combing.
Between preferred steps (2) and the step (3), increase step (2-2), carry out the combing second time, lapping.Various fibers are mixed more equably, fiber can be scatter fully, do not have the phenomenon of uniting, make interfibrous structure more stable, thereby improve the tensile strength of insulation flocculus, and the warming uniformity of insulation flocculus and grammes per square metre stability are guaranteed, can significantly increase the quantity of fiber cutting room simultaneously, reduce the flowability of air, improve the thermal property of insulation flocculus.
The mixed and disorderly draft process of above-mentioned steps (3) is that traditional insulation flocculus production technology is unexistent.Through mixed and disorderly drawing-off, originally be transversely arranged part fiber in the fibre web to vertically moving, make and form the netted arrangement of crossings on different level between fiber, and reduce the vertical and horizontal powerful difference of fibre web, regulate the mass area ratio of fibre web simultaneously, through after bonding, the setting, make fibre web keep stable fluffy structure, thereby the bulking intensity of insulation flocculus and compression resilience are improved again.The fibre web drawing machine mainly is made up of drawing rollers, and the drawing rollers surface coats card clothing.Common three drawing rollers constitute a draw zone, by a motor-driven; The gear ratio of the driving member of three drawing rollers in the draw zone, the fixedly drafting multiple of decision draw zone; When between the draw zone during no drawing-off, draw zone quantity has determined fixedly drafting multiple of the total minimum of fibre web drawing machine.Usually the fibre web drawing machine is provided with a plurality of draw zones, (drafting multiple is less usually by multistage drafting, generally between 1～2 times), make the part fiber that was transversely arranged in the intersection laying fibre web originally to vertically moving, thereby reduce the vertical and horizontal powerful difference of fibre web, the mass area ratio of regulating fibre web simultaneously.
In the above-mentioned steps (4), adhesive is sprayed at fluffy fibrolaminar two sides, because certain pressure is arranged when spraying, therefore also can infiltrate adhesive in the inside of fibre web, the fibre web behind the spray adhesive is again through curing, curing molding, in the crosslinked film forming of fiber surface and fiber intersection, thereby strengthen the adhesion of fiber intersection, improved the tensile strength of insulation flocculus, and the stiffness of raising fiber, the bulking intensity of insulation flocculus and compression resilience are improved.
Preferably increase step (6) afterwards in step (5), optical processing is scalded on the insulation flocculus surface, the fiber that the insulation flocculus surface is upright plates, and at the insulation flocculus surface filming.Can alleviate the brill suede phenomenon of insulation flocculus so greatly, and improve the windproof performance of insulation flocculus.Can adopt hot smooth roll that insulation flocculus is scalded optical processing, the staple fibre upright the insulation flocculus surface plates, and slight film forming.
Finish above-mentioned steps (1), (2), (3), (4), (5) (also comprising step (2-2), (6) in case of necessity) afterwards, the insulation flocculus that obtains is cooled off (can cool off at normal temperatures), excision rim charge, but rolling then obtain the insulation flocculus of rolling.
The transfer mode of heat mainly is conduction, convection current and radiation, and human body is main conduction and the convection current dissipated heat of passing through, and the main path that therefore improves the thermal property of insulation flocculus is to cut off or reduce heat to conduct and convection current.The present invention uses an amount of superfine Denier fibre and fine count fiber in insulation flocculus, on the one hand, fiber surface can adsorb still air, and under the situation of equivalent weight, the specific area of superfine Denier fibre and fine count fiber is far longer than coarse denier fiber, like this, the use of superfine Denier fibre and fine count fiber has improved the insulation flocculus fiber specific surface area greatly, thereby increased the amount of the still air that is adsorbed on fiber surface, improve the content of still air in the insulation flocculus greatly, because the thermal conductivity factor of air is well below various fibrous materials, so the increase of still air can effectively reduce the heat conduction; On the other hand, the use of superfine Denier fibre and fine count fiber can be cut into the space in the insulation flocculus littler space, thus the cross-ventilation in prevention or the minimizing space, therefore, the use of superfine Denier fibre and fine count fiber is improved the thermal property of insulation flocculus.In insulation flocculus, use an amount of viscose fibre and adhesive, strengthened the adhesion of fiber intersection, improved the tensile strength of insulation flocculus, and improve the stiffness of fiber, can improve the bulking intensity and the compression resilience of insulation flocculus.Through mixed and disorderly drawing-off, make to form the netted arrangement of crossings on different level between fiber, can further improve the bulking intensity and the compression resilience of flocculus.After testing, 200g/m
2The clo value of insulation flocculus of the present invention can reach 3.2-3.9clo, and the highest 1.8-2.5clo that can only reach of clo value of the gum sprayed cotton of same grammes per square metre, imitative silk flosssilk wadding; The compression rebound rate of insulation flocculus of the present invention reaches 96.8%.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention 1 insulation flocculus manufacture method;
Fig. 2 is the structural representation of the fibre web before the mixed and disorderly drawing-off;
Fig. 3 is the structural representation of the fibre web after the mixed and disorderly drawing-off.
The specific embodiment
At first, by weight, be equipped with following raw material: (all be the super fine denier polyester fiber, its fibre fineness is 0.78dtex to superfine Denier fibre 40%, length is 51mm), fine count fiber 38% (all be microdenier polyester fibers, its fibre fineness is 1.32dtex, and length is 51mm), viscose fibre 20% (all is the polypropylene polyester complex fiber, its fibre fineness is 4.4dtex, and length is 51mm), adhesive 2%.
Then, make insulation flocculus (with reference to figure 1) according to following step successively:
(1) with fibrous raw material shreddings such as superfine Denier fibre, fine count fiber and viscose fibre and mixing;
(2) fibrous raw material that mixes is carried out combing, lapping, form fibre web; Adopt single cylinder, two pass husband in the used carding equipment, card clothing adopts ultra-fine toothing (space width of card clothing is 1.8mm);
(3) carry out the combing second time, lapping; The structure of used carding equipment is identical with step (2); The fibre net structure that obtains as shown in Figure 2, the fiber 1 in the fibre web is arranged along same direction basically.
(4) fibre web is carried out mixed and disorderly drawing-off, make fibre web form solid netted chi structure, as shown in Figure 3, intersect, make fibre web form space network through the fiber in the fibre web of mixed and disorderly drawing-off 1; Used fibre web drawing machine mainly is made up of drawing rollers, and the drawing rollers surface coats card clothing.Three drawing rollers constitute a draw zone, by a motor-driven; The gear ratio of the driving member of three drawing rollers in the draw zone, the fixedly drafting multiple of decision draw zone; When between the draw zone during no drawing-off, draw zone quantity has determined fixedly drafting multiple of the total minimum of fibre web drawing machine.The fibre web drawing machine is provided with a plurality of draw zones, (drafting multiple is less usually by multistage drafting, generally between 1～2), make the part fiber that was transversely arranged in the intersection laying fibre web originally to vertically moving, thereby reduce the vertical and horizontal powerful difference of fibre web, the mass area ratio of regulating fibre web simultaneously.
(5) to the two sides spray adhesive of fibre web;
(6) fibre web is sent into baking oven, heating is cured to fibre web, and 150 ℃ of baking temperatures make the top layer fusing of viscose fibre at least and with the bonding of the fiber around it, adhesive solidified, and obtain insulation flocculus;
(7) optical processing is scalded on the insulation flocculus surface that step (6) is obtained, and the fiber that the insulation flocculus surface is upright plates, and at the insulation flocculus surface filming.
(8) insulation flocculus that obtains is cooled off at normal temperatures, rolling behind the excision rim charge obtains the insulation flocculus of rolling.
The insulation flocculus that present embodiment is obtained detects, 200g/m
2The clo value of insulation flocculus be 3.9clo, bulking intensity is 58m
3/ g, compressive recovery rate are 98%, and compression ratio is 80%, the vertical 9.1N of ultimate strength, horizontal 16.7N.
Embodiment 2
At first, by weight, be equipped with following raw material: superfine Denier fibre 80% (all be superfine denier polypropylene fibers, its fibre fineness is 1.1dtex, and length is 64mm), fine count fiber 10% (all is a microdenier polyester fibers, its fibre fineness is 5.5dtex, and length is 51mm), viscose fibre 10% (all is the skin-core structure low melting point polyester fiber, its fibre fineness is 4.4dtex, and length is 51mm).
The manufacture method of this insulation flocculus is identical with embodiment 1 basically, but omits step (5), promptly from step (4) directly to step (6).
The insulation flocculus that present embodiment is obtained detects, 200g/m
2The clo value of insulation flocculus be 3.6clo, bulking intensity is 60m
3/ g, compressive recovery rate are 93%, and compression ratio is 74%, the vertical 7.2N of ultimate strength, laterally 20N.
Embodiment 3
At first, by weight, be equipped with following raw material: (its fibre fineness is that 0.11dtex, length are 51mm to superfine Denier fibre 20%, wherein superfine denier polyamide fiber and superfine denier polypropylene nitrile fiber respectively account for half), fine count fiber 50% (wherein 20% be the thin denier polyamide fiber of two-dimensional crimp, its fibre fineness is that 1.2dtex, length are 32mm; Other 30% three-dimensional crimp fine denier polypropylene nitrile fiber, its fibre fineness is that 3.3dtex, length are 51mm), viscose fibre 30% (all be low melting point polyester fiber, its fibre fineness is 1.2dtex, and length is 58mm).
The manufacture method of this insulation flocculus is identical with embodiment 1 basically, but omits step (5), promptly from step (4) directly to step (6).
The insulation flocculus that present embodiment is obtained detects, 200g/m
2The clo value of insulation flocculus be 3.3clo, bulking intensity is 57m
3/ g, compressive recovery rate are 97%, and compression ratio is 77%, the vertical 5.6N of ultimate strength, laterally 21N.
Embodiment 4
At first, by weight, be equipped with following raw material: superfine Denier fibre 50% (all be the super fine denier polyester fiber that contains silicone oil, its fibre fineness is that 0.6dtex, length are 32mm), fine count fiber 40% (all is thin denier polyamide fiber, its fibre fineness is 2.2dtex, length is 64mm), (all be polypropylene fibre, its fibre fineness is 2dtex to viscose fibre 5%, length is 32mm), adhesive 5%.
The manufacture method of this insulation flocculus is identical with embodiment 1.
The insulation flocculus that present embodiment is obtained detects, 200g/m
2The clo value of insulation flocculus be 3.2clo, bulking intensity is 55m
3/ g, compressive recovery rate are 95%, and compression ratio is 75%, the vertical 5.2N of ultimate strength, laterally 19N.
Claims (14)
1. an insulation flocculus is characterized in that being made by the superfine Denier fibre of 20-80% (weight), the fine count fiber of 10-70% (weight), the viscose fibre of 5-30% (weight) and the adhesive of 0-5% (weight).
2. insulation flocculus according to claim 1 is characterized in that: the fibre fineness of described superfine Denier fibre is 0.11-1.1dtex.
3. insulation flocculus according to claim 2 is characterized in that: the length of described superfine Denier fibre is 32-64mm.
4. insulation flocculus according to claim 1 is characterized in that: described superfine Denier fibre is the mixture of one or more fibers in super fine denier polyester fiber, superfine denier polypropylene fibers, superfine denier polyamide fiber and the superfine denier polypropylene nitrile fiber.
5. insulation flocculus according to claim 1 is characterized in that: the fibre fineness of described fine count fiber is 1.2-5.5dtex.
6. insulation flocculus according to claim 5 is characterized in that: the length of described fine count fiber is 32-64mm.
7. insulation flocculus according to claim 1 is characterized in that: described fine count fiber is one or more the mixture in microdenier polyester fibers, fine denier polypropylene fibers, thin denier polyamide fiber and the fine denier polypropylene nitrile fiber.
8. insulation flocculus according to claim 1 is characterized in that: the fibre fineness of described viscose fibre is that 1.1-4.4dtex, length are 32-64mm.
9. insulation flocculus according to claim 1 is characterized in that: described viscose fibre is a kind of in low melting point polyester fiber, polypropylene fibre and the polypropylene polyester complex fiber or the mixture of multiple fiber wherein.
10. insulation flocculus according to claim 1 is characterized in that: described adhesive is vinegar third adhesive or copolymer acrylate emulsion binding agent.
11. the manufacture method of the described insulation flocculus of claim 1-10 is characterized in that comprising the steps: successively
(1) with superfine Denier fibre, fine count fiber and viscose fibre shredding and mixing;
(2) fibrous raw material that mixes is carried out combing, lapping, form fibre web;
(3) fibre web is carried out mixed and disorderly drawing-off, make fibre web form solid netted chi structure;
(4) to the two sides spray adhesive of fibre web;
(5) heating is cured to fibre web, makes the top layer fusing of viscose fibre at least and with the bonding of the fiber around it, adhesive is solidified, and obtains insulation flocculus.
12. the manufacture method of insulation flocculus according to claim 11 is characterized in that: between described step (2) and the step (3), increase step (2-2), carry out the combing second time, lapping.
13. the manufacture method of insulation flocculus according to claim 11 is characterized in that: the used fibre web drawing machine of the mixed and disorderly drawing-off of described step (3) comprises drawing rollers, and the drawing rollers surface coats card clothing, and three drawing rollers constitute a draw zone; The fibre web drawing machine is provided with a plurality of draw zones, and fibre web is carried out multistage drafting.
14. the manufacture method of insulation flocculus according to claim 11, it is characterized in that: described step (5) increases step (6) afterwards, optical processing is scalded on the insulation flocculus surface, and the fiber that the insulation flocculus surface is upright plates, and at the insulation flocculus surface filming.
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