CN103451854B - A kind of manufacture method of nonwoven needled adhesive band base - Google Patents

A kind of manufacture method of nonwoven needled adhesive band base Download PDF

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Publication number
CN103451854B
CN103451854B CN201310353913.7A CN201310353913A CN103451854B CN 103451854 B CN103451854 B CN 103451854B CN 201310353913 A CN201310353913 A CN 201310353913A CN 103451854 B CN103451854 B CN 103451854B
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adhesive band
band base
nonwoven
manufacture
fibre
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CN103451854A (en
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吴锐
李炳林
陈继智
熊大平
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FUJIAN XINHUA Co Ltd
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FUJIAN XINHUA Co Ltd
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Abstract

The present invention discloses a kind of manufacture method of nonwoven needled adhesive band base, with the low melting point staple fibre of the Regenerated Polyester Fibres of 80-95wt% and 5-20wt% for raw material, nonwoven layer is formed after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained nonwoven needled adhesive band base after hot rolling process and calendering process, the line density of this Regenerated Polyester Fibres is 0.9-2.0D, and fibre length is 36-51mm; The line density of this low melting point staple fibre is 1.0-3D, and fibre length is 38-51mm, and the grammes per square metre of adhesive band base is 50-80 gram/m.The present invention can reach the tearable effect of whole adhesive band base, and has and do not produce burr and the good feature of profile pattern.

Description

A kind of manufacture method of nonwoven needled adhesive band base
Technical field
The present invention relates to nonwoven material field, relate to a kind of manufacture method of nonwoven needled adhesive band base in particular.
Background technology
Conventional adhesive tape, as adhesive plaster, dressings and surgery cloth etc., it is all into web-like when packing, when concrete use, people also need adhesive tape to be torn into less strip with actual user demand of fitting, because adhesive tape is generally be bonded on skin chronically, therefore may cause fash, allergic etc., the current improvement for adhesive tape is generally the problems such as such as gas permeability thus, CN101929079A as open in Chinese patent, it relates to the manufacture method of medicinal ventilated adhesive tape base material.Then more further investigate adhesive tape moulding process, the applicant then concentrates on studies from the molding mode of easy tear tape, and namely this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of nonwoven needled adhesive band base.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of manufacture method of nonwoven needled adhesive band base, wherein, with the low melting point staple fibre of the Regenerated Polyester Fibres of 80-95wt% and 5-20wt% for raw material, nonwoven layer is formed after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained nonwoven needled adhesive band base after hot rolling process and calendering process, the line density of this Regenerated Polyester Fibres is 0.9-2.0D, and fibre length is 36-51mm; The line density of this low melting point staple fibre is 1.0-3D, and fibre length is 38-51mm, and the grammes per square metre of adhesive band base is 50-80 gram/m.
Further, this lapping operation forms the fibre web of 90-130 gram/m.
Further, this low melting point staple fibre is polypropylene short fiber.
Further, this calendering is treated to and adopts top roll to be hot-rolling, and lower roll is that the mode that cold roller carries out hot-pressing processing processes nonwoven layer.
Further, also comprised before mixing shredding operation and manually mix cotton and the step of carrying out damping under certain humiture.
Further, in carding operation, the main cylinder rotating speed of carding machine is 600-700r/min, and indoor temperature controls at 15-30 DEG C, and relative humidity controls at 50-80%.
Further, in carding operation, also comprise mixed and disorderly treatment step, this in a jumble process refer to and through mixed and disorderly roller effect, the staple fibre of 60%-80% longitudinally to be arranged by transversely arranged converting to.
Further, acupuncture operation comprises pre-thorn, the first main thorn, the second main thorn, the 3rd main thorn and five steps of having a shave, and this needling density stung in advance is 60-100, acupuncture 10mm, and drawing-off ratio is 30-40%; The needling density of this first main thorn is 60-100, acupuncture 7mm, and drawing-off ratio is 15-30%; The needling density of this second main thorn is 60-100, acupuncture 7mm, drawing-off ratio 15-20%; The needling density of the 3rd main thorn is 60-100, acupuncture 6mm, drawing-off ratio 10-20%; The needling density 60-100 had a shave, acupuncture 3mm, drawing-off ratio 5-10%.
After adopting said structure, the manufacture method of a kind of nonwoven needled adhesive band base that the present invention relates to, it at least has following beneficial effect:
One, the present invention adopts staple fibre, contributes to reducing the brute force of longitudinal direction and the obvolvent of longitudinal fiber, will be conducive to the reduction of horizontal Tear strength like this, reaches lacerable effect; Fiber main transversely direction arrangement simultaneously, transverse fiber obvolvent is strong, is conducive to horizontal direction brute force and improves, namely reach effect that whole adhesive band base is tearable;
Two, the present invention is through hot rolling process, the low melting point staple fibre of 5-15wt% in raw material can be melted, namely mixing between staple fibre is made to melt, play relative position between cured fiber, reduce the effect of fibrous fracture percentage elongation, so also be conducive to the tearability of whole adhesive band base, namely get final product stretch broken fiber stressed instantaneously, and do not produce burr;
Three, the present invention is through calendering process, will be conducive to the raising of nonwoven needled adhesive band base profile pattern, is convenient to follow-up blade coating process.
Detailed description of the invention
In order to explain technical scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
The present invention relates to a kind of manufacture method of nonwoven needled adhesive band base, with the low melting point staple fibre of the Regenerated Polyester Fibres of 80-95wt% and 5-20wt% for raw material, nonwoven layer is formed after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained nonwoven needled adhesive band base after hot rolling process and calendering process, the line density of this Regenerated Polyester Fibres is 0.9-2.0D, and fibre length is 36-51mm; The line density of this low melting point staple fibre is 1.0-3D, and fibre length is 38-51mm.
For this low melting point staple fibre, specifically can select polypropylene short fiber, its ratio adopted is preferably 5-15wt%, if ratio is less, then between fiber, every bonding force is less, affects rubber belt material overall powerful, and the style on rubber belt material surface.If ratio is large, then after polypropylene fiber melting, the entanglement between fiber is more, affects rubber belt material tearability, and the style on surface.
For mixing shredding operation: its objective is and above-mentioned Regenerated Polyester Fibres and low melting point staple fibre are carried out abundant shredding and mixed, reach the effect mixed.In order to improve mixed effect, adopting in advance and manually mix cotton and at temperature 20-28 DEG C, carry out the mode of damping under humidity 70-85%, and can reduce fibre damage, improve fibre cohesion, opener equipment can adopt automatic type weighing type bale opener.
For feeding operation: the combination mixed for shredding Regenerated Polyester Fibres and low melting point staple fibre being adopted air pressure cotton box or vibrating cotton box and air pressure cotton box, because terylene short fiber is less relative to fineness, and the density of polypropylene fibre is lighter, so its composite fibre density is less, this can ensure that cellucotton net is evenly distributed to adopt air pressure cotton box, and be not subject to the impact of fibre property and external condition, then under the automatic adjustment of skin curtain electronic scale, control weight and the speed of feeding fiber, making fiber feed linear speed is 0.3-2.0m/min, feeding fibre weight is 0.5-3 Kilograms Per Square Meter, under the effect of skin curtain electronic scale, can greatly improve fiber uniform throughout and carding effect.
For combing operation: carry out sufficient combing by the fiber of carding machine to feeding, obtain uniform fibre web.The main cylinder rotating speed of carding machine is 600-700r/min, and indoor temperature controls at 15-30 DEG C, and relative humidity controls at 50-80%, and it adopts double cylinder and double doffer combing mode, improves carding effect and output.In carding operation, also comprise mixed and disorderly treatment step, this in a jumble process refer to and through mixed and disorderly roller effect, the staple fibre of 60%-80% longitudinally to be arranged by transversely arranged converting to.If staple fibre amount is less than 60%, then can there is the larger problem of horizontal brute force, longitudinally powerful not enough situation, affects the tearability of fiber.If staple fibre amount is greater than 80%, then can exist laterally powerful little, longitudinally powerful large problem, in length and breadth to powerful numerous imbalances, causes rubber belt material usability.By the staple fibre of part is converted to longitudinal arrangement by transversely arranged, so the tearability of formed adhesive band base can be promoted further;
For lapping operation: carry out repeatedly the fiber obtained through combing and keep the overlap of necessarily spacing to make its grammes per square metre reach 90-130 gram/m, adopt cross lapping machine, by the adjustment of servomotor program, the speed of each dolly can be changed, fibre web is evenly distributed, avoid thick middle, the situation that both sides are thin, reduce fibre web irregularity.
For acupuncture operation: in fact adopt pre-pricking machine, main-needling machine and refacing machine to realize, wherein needing machine comprises again the first main-needling machine, the second main-needling machine and the 3rd main-needling machine, particularly:
Pre-pricking machine: make fiber carry out preliminary obvolvent by pre-pricking machine effect, this acupuncture belongs to pre-profiling, its drawing-off ratio is 30-40%, but will avoid destroying fiberizing, needling density 60-100, acupuncture 10mm.
First main-needling machine: adopt needing machine, adopt high draft technique, longitudinally number of the arrangement is less to make fiber, reduces the cohesive force between fiber, the easier hand of fabric is torn, needling density 60-100, acupuncture 7mm, drawing-off ratio 15-30%.
Second main-needling machine: adopt needing machine, adopt high draft technique, longitudinally number of the arrangement is less to make fiber, reduces the cohesive force between fiber, the easier hand of fabric is torn, needling density 60-100, acupuncture 7mm, drawing-off ratio 15-20%.
3rd main-needling machine: adopt needing machine, adopt high draft technique, longitudinally number of the arrangement is less to make fiber, reduces the cohesive force between fiber, the easier hand of fabric is torn, needling density 60-100, acupuncture 6mm, drawing-off ratio 10-20%.
Refacing machine: adopt needing machine, adopt high draft technique, longitudinally number of the arrangement is less to make fiber, reduces the cohesive force between fiber, the easier hand of fabric is torn, needling density 60-100, acupuncture 3mm, drawing-off ratio 5-10%.By above-mentioned steps, fiber number in unit length is made to be reduced to less than 60%.
For hot rolling process: make low melting point staple fibre produce melting under hot pressing function, contribute to the obvolvent of fiber and fix, falling low-fiber elongation at break.The hand being conducive to fabric tears.
For calendering process: for adopting top roll to be hot-rolling, lower roll is that the mode that cold roller carries out calendering process processes nonwoven layer, through the calendering process of upper and lower differential roller temperature, can give the cloth style that acupuncture adhesive band base is good.Instant heating roll surface fibers melt smooth surface, is formed and has gloss-look effect.Cold roll surface fiber is by pressure roller effect, and filoplume fits perfectly, and forms special feel, the surface of style.
Like this, the present invention relates to a kind of preparation method of nonwoven needled adhesive band base, it is high that it makes full use of fabric longitudinal tear brute force, the performance that horizontal Tear strength is low and the good mixed and disorderly uniformity of non-weaving cloth and fibre matting performance, then it is laterally tearability to give fabric by pinprick reinforcement and low-melting fiber thawing effect.
Below by specific embodiment, the present invention is set forth again:
Embodiment one
The manufacture method of a kind of nonwoven needled adhesive band base that the present invention relates to, with the polypropylene short fiber of the Regenerated Polyester Fibres of 90wt% and 10wt% for raw material.Wherein, the fineness of Regenerated Polyester Fibres is 1.4D, and fibre length is 38mm, and the fineness of polypropylene short fiber is 2.5D, and fibre length is 51mm.
During production, first fibrous raw material is carried out shredding and mixes, then by fiber feeding system, vibrating cotton box or air pressure cotton box or both in conjunction with hopper, fiber is sent into combing system, through carding, and repeatedly overlap onto the required number of plies or grammes per square metre 90-110 gram/m by lapping machine.Nonwoven needled adhesive band base is prepared by 5 needing machines, 8 needle plates.
Again fibre web is stung begin to take shape fibrofelt by hangnail, just.First punch frequency and the degree of depth are respectively 60-100r/min, 9-11mm, and second punch frequency and the degree of depth are respectively 200-230r/min, 6-7mm, and the 3rd road acupuncture complex machining process ensures the reinforcing that non-weaving cloth is good, ensure the brute force that fabric is certain.3rd road punch frequency and depth of needling are respectively 200-250r/min, 5-6mm.Particularly, carry out pinprick reinforcement to the fibre web after lapping, pre-thorn adopts hangnail form, reinforcing acupuncture is carried out to form needling fiber felt again by upper thorn mode, in its process, ensure that fibrofelt is fluffy and there is certain brute force, being beneficial to the carrying out of later process.3rd road and the 4th procedure are reinforcement effect, and the 5th road acupuncture is the effect of having a shave, and adopt high punch frequency, low depth of needling, effect of having a shave is played to it, punch frequency and the depth of needling of the 5th road acupuncture are respectively 250-300r/min, 2-3mm, ensure the surperficial style that fabric is special.
Final finishing: hot rolling process.Make low melting point staple fibre produce melting under hot pressing function, contribute to the obvolvent of fiber and fix, fall low-fiber elongation at break, the hand being conducive to fabric tears, and degree of draft is about 5-10%.
Calendering process: give the cloth cover effect that fiber surface is good, filoplume is docile.Utilize top roll for hot-rolling, lower roll is that cold roller carries out hot-pressing processing.
After tested, record that leather base cloth grammes per square metre is 60 grams/m, thickness is 0.2mm, longitudinal tear brute force is 40-45N/3cm, and horizontal Tear strength is 120-130N/3cm,
Embodiment two
The manufacture method of a kind of nonwoven needled adhesive band base that the present invention relates to, with the polypropylene chopped fiber of the Regenerated Polyester Fibres of 95wt% and 5wt% for raw material.Wherein, the fineness of Regenerated Polyester Fibres is 1.4D, and fibre length is 38mm, and the fineness of polypropylene short fiber is 2.5D, and fibre length is 51mm.
During production, first fibrous raw material is carried out shredding and mixes, then by fiber feeding system, vibrating cotton box or air pressure cotton box or both in conjunction with hopper, fiber is sent into combing system, through carding, and repeatedly overlap onto the required number of plies or grammes per square metre 100-140 gram/m by lapping machine.Nonwoven needled adhesive band base is prepared by 5 needing machines, 8 needle plates.
Again fibre web is stung begin to take shape fibrofelt by hangnail, just.First punch frequency and the degree of depth are respectively 70-110r/min, 9-11mm, and second punch frequency and the degree of depth are respectively 200-250r/min, 6-7mm, and the 3rd road acupuncture complex machining process ensures the reinforcing that non-weaving cloth is good, ensure the brute force that fabric is certain.3rd road punch frequency and depth of needling are respectively 200-250r/min, 5-6mm.Particularly, carry out pinprick reinforcement to the fibre web after lapping, pre-thorn adopts hangnail form, reinforcing acupuncture is carried out to form needling fiber felt again by upper thorn mode, in its process, ensure that fibrofelt is fluffy and there is certain brute force, being beneficial to the carrying out of later process.3rd road and the 4th procedure are reinforcement effect, and the 5th road acupuncture is the effect of having a shave, and adopt high punch frequency, low depth of needling, effect of having a shave is played to it, punch frequency and the depth of needling of the 5th road acupuncture are respectively 250-300r/min, 2-3mm, ensure the surperficial style that fabric is special.
Final finishing: hot rolling process.Make PP or low-melting fiber produce melting under hot pressing function, contribute to the obvolvent of fiber and fix, falling low-fiber elongation at break.The hand being conducive to fabric tears.Degree of draft is about 5-10%
Calendering process: give the cloth cover effect that fiber surface is good, filoplume is docile.Utilize top roll for hot-rolling, lower roll is that cold roller carries out hot-pressing processing.
After tested, record that leather base cloth grammes per square metre is 80 grams/m, thickness is 0.25mm, longitudinal tear brute force is 45-50N/3cm, and horizontal Tear strength is 130-140N/3cm.
In sum, the manufacture method of a kind of nonwoven needled adhesive band base that the present invention relates to, it at least has following beneficial effect:
One, the present invention adopts staple fibre, contributes to reducing the brute force of longitudinal direction and the obvolvent of longitudinal fiber, will be conducive to the reduction of horizontal Tear strength like this, reaches lacerable effect; Fiber main transversely direction arrangement simultaneously, transverse fiber obvolvent is strong, is conducive to horizontal direction brute force and improves, namely reach effect that whole adhesive band base is tearable; Whole acupuncture adhesive band base grammes per square metre is 50-80 gram every square metre, and for the eedle-punched non-wovens of low grammes per square metre, technique is especially crucial, not so, very easily produces and scores a goal or the fault such as web is irregular;
Two, the present invention is through hot rolling process, the low melting point staple fibre of 5-15wt% in raw material can be melted, namely mixing between staple fibre is made to melt, play relative position between cured fiber, reduce the effect of fibrous fracture percentage elongation, so also be conducive to the tearability of whole adhesive band base, namely get final product stretch broken fiber stressed instantaneously, and do not produce burr;
Three, the present invention is through calendering process, will be conducive to the raising of nonwoven needled adhesive band base profile pattern, is convenient to follow-up blade coating process.Through the calendering process of upper and lower differential roller temperature, the cloth style that acupuncture adhesive band base is good can be given.Instant heating roll surface fibers melt smooth surface, is formed and has gloss-look effect.Cold roll surface fiber is by pressure roller effect, and filoplume fits perfectly, and forms special feel, the surface of style.
Above-described embodiment non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.

Claims (6)

1. the manufacture method of a nonwoven needled adhesive band base, it is characterized in that, with the low melting point staple fibre of the Regenerated Polyester Fibres of 80-95wt% and 5-20wt% for raw material, nonwoven layer is formed after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained nonwoven needled adhesive band base after hot rolling process and calendering process, the line density of this Regenerated Polyester Fibres is 0.9-2.0D, and fibre length is 36-51mm; The line density of this low melting point staple fibre is 1.0-3D, fibre length is 38-51mm, the grammes per square metre of adhesive band base is 50-80 gram/m, in carding operation, also comprise mixed and disorderly treatment step, this in a jumble process refer to and through mixed and disorderly roller effect, the staple fibre of 60%-80% longitudinally to be arranged by transversely arranged converting to.
2. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, is characterized in that, this lapping operation forms the fibre web of 90-130 gram/m.
3. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, is characterized in that, this low melting point staple fibre is polypropylene short fiber.
4. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, is characterized in that, this calendering is treated to and adopts top roll to be hot-rolling, and lower roll is that the mode that cold roller carries out calendering process processes nonwoven layer.
5. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, is characterized in that, also comprises and manually mixes cotton also temperature 20-28 DEG C, carried out the step of damping under humidity 70-85% before mixing shredding operation.
6. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, is characterized in that, in carding operation, the main cylinder rotating speed of carding machine is 600-700r/min, and indoor temperature controls at 15-30 DEG C, and relative humidity controls at 50-80%.
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CN103835068B (en) * 2014-02-24 2016-01-13 大庆亚东无纺新材料股份有限公司 A kind of nonwoven fabric wood-based plate veneer film
CN105332165A (en) * 2014-05-28 2016-02-17 上海名冠净化材料股份有限公司 Synthetic fiber fabric and production method thereof
CN105040272A (en) * 2015-08-25 2015-11-11 福建鑫华股份有限公司 Less-hair-removal adhesive tape base material and production method thereof
CN108611759A (en) * 2018-05-10 2018-10-02 上海润东无纺布制品有限公司 A kind of needle thorn hot melt two-face filtering cloth and manufacturing process
CN108917824A (en) * 2018-05-11 2018-11-30 南通大学 Depth of needling acts on the quantization method influenced on radiation protection non-woven material
CN110344176A (en) * 2019-05-31 2019-10-18 杭州金百合非织造布有限公司 It is packed for hot rolling non-woven base fabric production technology

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JP4224890B2 (en) * 1999-05-07 2009-02-18 株式会社日本吸収体技術研究所 Bulky processing method for nonwoven web and bulky nonwoven fabric obtained thereby
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