CN103451854A - Manufacturing method of non-woven needling adhesive tape substrate - Google Patents
Manufacturing method of non-woven needling adhesive tape substrate Download PDFInfo
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- CN103451854A CN103451854A CN2013103539137A CN201310353913A CN103451854A CN 103451854 A CN103451854 A CN 103451854A CN 2013103539137 A CN2013103539137 A CN 2013103539137A CN 201310353913 A CN201310353913 A CN 201310353913A CN 103451854 A CN103451854 A CN 103451854A
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Abstract
The invention discloses a manufacturing method for a non-woven needling adhesive tape substrate. The method comprises the following steps: mixing 80-95 percent by weight of regenerated polyester fiber and 5-20 percent by weight of low-melting-point chopped fiber serving as raw materials; mixing, opening, feeding, carding into a net, lapping and needling to form a non-woven cloth layer; and performing hot rolling treatment and calendaring treatment on the non-woven fabric layer to obtain the non-woven needling adhesive tape substrate, wherein the liner density of the regenerated polyester fiber is 0.9-2.0D, and the fiber length is 36-51 millimeters; and the linear density of the low-melting-point chopped fiber is 1.0-3D, the fiber length is 38-51 millimeters, and the gram weight of the adhesive tape substrate is 50-80 g/m<2>. According to the method, the tearing property of the entire adhesive substrate can be realized, and the non-woven needling adhesive tape substrate has the characteristics of freeness from burrs and high surface flatness.
Description
Technical field
The present invention relates to the nonwoven material field, relate in particular a kind of manufacture method of nonwoven needled adhesive band base.
Background technology
Conventional adhesive tape, as cloth etc. for adhesive plaster, dressings and surgery, it all is into web-like when packing, when concrete the use, people also need adhesive tape is torn into to less strip with the actual user demand of fitting, because adhesive tape is generally to be bonded on skin chronically, therefore may cause fash, allergic etc., for the improvement of adhesive tape, be generally such as problems such as gas permeabilities at present thus, CN101929079A as open as Chinese patent, it relates to the manufacture method of medicinal ventilated adhesive tape base material.The adhesive tape moulding process is more furtherd investigate, and the applicant is concentrated on studies from the molding mode of easy tear tape, and 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, take the Regenerated Polyester Fibres of 80-95wt% and the low melting point staple fibre of 5-20wt% is raw material, form nonwoven layer after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained to the nonwoven needled adhesive band base after hot rolling processing and calendering processing, 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 g/m.
Further, this lapping operation forms the fibre web of 90-130 g/m.
Further, this low melting point staple fibre is polypropylene short fiber.
Further, this calendering is treated to and adopts top roll is hot-rolling, and lower roll is that the mode that cold roller carries out hot-pressing processing is processed nonwoven layer.
Further, also comprised the step of manually mixing cotton and carrying out damping under certain humiture before mixing the shredding operation.
Further, in the carding operation, the main cylinder rotating speed of carding machine is 600-700r/min, and indoor temperature is controlled at 15-30 ℃, and relative humidity is controlled at 50-80%.
Further, also comprise mixed and disorderly treatment step in the carding operation, this mixed and disorderly processing refers to through mixed and disorderly roller effect is arranged the staple fibre of 60%-80% by transversely arranged converting to longitudinally.
Further, the acupuncture operation comprises pre-thorn, the first main thorn, the second main thorn, the 3rd main thorn and the five steps of having a shave, and the needling density of this pre-thorn is 60-100, acupuncture 10mm, and the drawing-off ratio is 30-40%; The needling density of this first main thorn is 60-100, acupuncture 7mm, and the 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 the present invention relates to, it at least has following beneficial effect:
One, the present invention adopts staple fibre, contributes to reduce the brute force of longitudinal direction and the obvolvent of longitudinal fiber, will be conducive to so laterally tear powerful reduction, reaches lacerable effect; Fiber is mainly arranged along horizontal direction simultaneously, and the transverse fiber obvolvent is strong, is conducive to the powerful raising of horizontal direction, reaches the tearable effect of whole adhesive band base;
Two, the present invention processes through hot rolling, make the low melting point staple fibre of 5-15wt% in raw material to melt, make between staple fibre and mix and melt, play relative position between cured fiber, reduce the effect of fibrous fracture percentage elongation, the tearable property that so also is conducive to whole adhesive band base, stressedly can break fiber in moment, and not produce burr;
Three, the present invention processes through calendering, will be conducive to the raising of nonwoven needled adhesive band base profile pattern, is convenient to follow-up blade coating and processes.
The specific embodiment
In order further to explain technical scheme of the present invention, 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, take the Regenerated Polyester Fibres of 80-95wt% and the low melting point staple fibre of 5-20wt% is raw material, form nonwoven layer after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained to the nonwoven needled adhesive band base after hot rolling processing and calendering processing, 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, between fiber, every bonding force is less, affects rubber belt material whole powerful, and the style on rubber belt material surface.If ratio is large,, after the polypropylene fiber melting, the entanglement between fiber is more, affects the tearable property of rubber belt material, and the style on surface.
For mixing the shredding operation: its objective is above-mentioned Regenerated Polyester Fibres and low melting point staple fibre are carried out to abundant shredding and mixed, reach the effect mixed.In order to improve mixed effect, adopt and manually mix cotton and, at temperature 20-28 ℃, carry out the mode of damping under humidity 70-85% in advance, and can reduce fibre damage, improve fibre cohesion, opener equipment can adopt automatic type weighing type bale opener.
For feeding operation: by the combination of the mixed Regenerated Polyester Fibres of shredding and low melting point staple fibre employing air pressure cotton box or vibrating cotton box and air pressure cotton box, because the relative fineness of terylene short fiber is less, and the density of polypropylene fibre is lighter, so its composite fibre density is less, this can guarantee 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 feeding linear speed is 0.3-2.0m/min, the feeding fibre weight is the 0.5-3 Kilograms Per Square Meter, under the effect of skin curtain electronic scale, can greatly improve fiber uniformity and carding effect everywhere.
For the combing operation: by carding machine, the fiber of feeding is carried out to sufficient combing, obtain uniform fibre web.The main cylinder rotating speed of carding machine is 600-700r/min, and indoor temperature is controlled at 15-30 ℃, and relative humidity is controlled at 50-80%, and it adopts double cylinder and double doffer combing mode, has improved carding effect and output.Also comprise mixed and disorderly treatment step in the carding operation, this mixed and disorderly processing refers to through mixed and disorderly roller effect is arranged the staple fibre of 60%-80% by transversely arranged converting to longitudinally.If the staple fibre amount is less than 60%, can there is the larger problem of horizontal brute force, vertical powerful not enough situation, affect the tearable property of fiber.If the staple fibre amount is greater than 80%, can exist horizontal brute force little, vertically powerful large problem, seriously lack of proper care to brute force in length and breadth, causes the rubber belt material usability.By the transversely arranged longitudinal arrangement that is converted to, so can promote further the tearable property of formed adhesive band base by the staple fibre by part;
For the lapping operation: the fiber obtained through combing is carried out repeatedly and overlapping its grammes per square metre that makes of keeping necessarily spacing reaches 90-130 g/m, adopt cross lapping machine, adjustment by the servomotor program, can change the speed of each dolly, make fibre web be evenly distributed, avoid thick middle, the situation that both sides are thin, reduce the fibre web irregularity.
For the 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: by the pre-pricking machine effect, make fiber carry out preliminary obvolvent, this acupuncture belongs to pre-profiling, and its drawing-off ratio is 30-40%, but will avoid destroying fiberizing, needling density 60-100, acupuncture 10mm.
The 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, makes the easier hand of fabric tear, needling density 60-100, acupuncture 7mm, drawing-off ratio 15-30%.
The 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, makes the easier hand of fabric tear, needling density 60-100, acupuncture 7mm, drawing-off ratio 15-20%.
The 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, makes the easier hand of fabric tear, 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, makes the easier hand of fabric tear, needling density 60-100, acupuncture 3mm, drawing-off ratio 5-10%.By above-mentioned steps, make fiber number in unit length be reduced to below 60%.
For hot rolling, process: make the 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 that is conducive to fabric tears.
For calendering, process: for adopting top roll, be hot-rolling, lower roll is that the mode that cold roller carries out the calendering processing is processed nonwoven layer, through the calendering of upper and lower differential roller temperature, processes, and can give the cloth style that the acupuncture adhesive band base is good.Instant heating roll surface fibers melt smooth surface, form and have the glossy surface effect.Cold roll surface fiber is by the pressure roller effect, and filoplume is submissive, 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 takes full advantage of fabric longitudinal tear brute force, laterally tear powerful low performance and good mixed and disorderly uniformity and the fibre matting performance of non-weaving cloth, then give fabric horizontal tearable property by pinprick reinforcement and low-melting fiber thawing effect.
Below by specific embodiment, the present invention is set forth again:
Embodiment mono-
The manufacture method of a kind of nonwoven needled adhesive band base the present invention relates to, take the Regenerated Polyester Fibres of 90wt% and the polypropylene short fiber of 10wt% is 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, at first fibrous raw material is carried out to shredding and mixes, then by the fiber feeding system, vibrating cotton box or air pressure cotton box or both send fiber into the combing system in conjunction with hopper, through carding, and repeatedly overlap onto the required number of plies or grammes per square metre 90-110 g/m by lapping machine.Prepare the nonwoven needled adhesive band base by 5 needing machines, 8 needle plates.
Again by fibre web by hangnail, just sting and begin to take shape fibrofelt.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 ， tri-road acupuncture complex machining process guarantee the good reinforcing of non-weaving cloth, guarantee the certain brute force of fabric.The 3rd road punch frequency and depth of needling are respectively 200-250r/min, 5-6mm.Particularly, the fibre web after lapping is carried out to pinprick reinforcement, pre-thorn adopts the hangnail form, reinforced acupuncture to form the needling fiber felt by upper thorn mode again, in its process, guarantee that fibrofelt is fluffy and have certain brute force, be beneficial to the carrying out of later process.The 3rd road and the 4th procedure are that reinforcement effect ， five road acupunctures are the effect of having a shave, and adopt high punch frequency, low depth of needling, it is played to the effect of having a shave, punch frequency and the depth of needling of the 5th road acupuncture are respectively 250-300r/min, and 2-3mm guarantees the special surperficial style of fabric.
Rear arrangement: hot rolling is processed.Make the 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 that is conducive to fabric tears, and degree of draft is about 5-10%.
Calendering is processed: 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, recording leather base cloth grammes per square metre and be 60 g/ms, thickness is 0.2mm, and longitudinal tear brute force be 40-45N/3cm, and laterally tearing brute force is 120-130N/3cm,
Embodiment bis-
The manufacture method of a kind of nonwoven needled adhesive band base the present invention relates to, take the Regenerated Polyester Fibres of 95wt% and the polypropylene chopped fiber of 5wt% is 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, at first fibrous raw material is carried out to shredding and mixes, then by the fiber feeding system, vibrating cotton box or air pressure cotton box or both send fiber into the combing system in conjunction with hopper, through carding, and repeatedly overlap onto the required number of plies or grammes per square metre 100-140 g/m by lapping machine.Prepare the nonwoven needled adhesive band base by 5 needing machines, 8 needle plates.
Again by fibre web by hangnail, just sting and begin to take shape fibrofelt.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 ， tri-road acupuncture complex machining process guarantee the good reinforcing of non-weaving cloth, guarantee the certain brute force of fabric.The 3rd road punch frequency and depth of needling are respectively 200-250r/min, 5-6mm.Particularly, the fibre web after lapping is carried out to pinprick reinforcement, pre-thorn adopts the hangnail form, reinforced acupuncture to form the needling fiber felt by upper thorn mode again, in its process, guarantee that fibrofelt is fluffy and have certain brute force, be beneficial to the carrying out of later process.The 3rd road and the 4th procedure are that reinforcement effect ， five road acupunctures are the effect of having a shave, and adopt high punch frequency, low depth of needling, it is played to the effect of having a shave, punch frequency and the depth of needling of the 5th road acupuncture are respectively 250-300r/min, and 2-3mm guarantees the special surperficial style of fabric.
Rear arrangement: hot rolling is processed.Make PP or low-melting fiber produce melting under hot pressing function, contribute to the obvolvent of fiber and fix, fall low-fiber elongation at break.The hand that is conducive to fabric tears.Degree of draft is about 5-10%
Calendering is processed: 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, recording leather base cloth grammes per square metre and be 80 g/ms, thickness is 0.25mm, and longitudinal tear brute force be 45-50N/3cm, and laterally tearing brute force is 130-140N/3cm.
In sum, the manufacture method of a kind of nonwoven needled adhesive band base the present invention relates to, it at least has following beneficial effect:
One, the present invention adopts staple fibre, contributes to reduce the brute force of longitudinal direction and the obvolvent of longitudinal fiber, will be conducive to so laterally tear powerful reduction, reaches lacerable effect; Fiber is mainly arranged along horizontal direction simultaneously, and the transverse fiber obvolvent is strong, is conducive to the powerful raising of horizontal direction, reaches the tearable effect of whole adhesive band base; Whole acupuncture adhesive band base grammes per square metre is every square metre of 50-80 gram, 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 processes through hot rolling, make the low melting point staple fibre of 5-15wt% in raw material to melt, make between staple fibre and mix and melt, play relative position between cured fiber, reduce the effect of fibrous fracture percentage elongation, the tearable property that so also is conducive to whole adhesive band base, stressedly can break fiber in moment, and not produce burr;
Three, the present invention processes through calendering, will be conducive to the raising of nonwoven needled adhesive band base profile pattern, is convenient to follow-up blade coating and processes.Calendering through upper and lower differential roller temperature is processed, and can give the cloth style that the acupuncture adhesive band base is good.Instant heating roll surface fibers melt smooth surface, form and have the glossy surface effect.Cold roll surface fiber is by the pressure roller effect, and filoplume is submissive, forms special feel, the surface of style.
Above-described embodiment non-limiting product form of the present invention and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not breaking away from patent category of the present invention.
Claims (8)
1. the manufacture method of a nonwoven needled adhesive band base, it is characterized in that, take the Regenerated Polyester Fibres of 80-95wt% and the low melting point staple fibre of 5-20wt% is raw material, form nonwoven layer after mixing shredding, feeding, carding, lapping and acupuncture, again nonwoven layer is obtained to the nonwoven needled adhesive band base after hot rolling processing and calendering processing, 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 g/m.
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 g/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 is hot-rolling, and lower roll is that the mode that cold roller carries out the calendering processing is processed 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 comprised before mixing the shredding operation and manually mix cotton and temperature 20-28 ℃, the step of carrying out damping under humidity 70-85%.
6. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, is characterized in that, in the carding operation, the main cylinder rotating speed of carding machine is 600-700r/min, and indoor temperature is controlled at 15-30 ℃, and relative humidity is controlled at 50-80%.
7. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, it is characterized in that, also comprise mixed and disorderly treatment step in the carding operation, this mixed and disorderly processing refers to through mixed and disorderly roller effect is arranged the staple fibre of 60%-80% by transversely arranged converting to longitudinally.
8. the manufacture method of a kind of nonwoven needled adhesive band base as claimed in claim 1, it is characterized in that, the acupuncture operation comprises pre-thorn, the first main thorn, the second main thorn, the 3rd main thorn and the five steps of having a shave, and the needling density of this pre-thorn is 60-100, acupuncture 10mm, the drawing-off ratio is 15-30%; The needling density of this first main thorn is 60-100, acupuncture 7mm, and the 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%.
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| CN103835068A (en) * | 2014-02-24 | 2014-06-04 | 白亚东 | Non-woven fabric artificial board face pasting film |
| 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 |
| 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 |
| 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 |
| CN111850826A (en) * | 2020-07-04 | 2020-10-30 | 日照职业技术学院 | Novel environment-friendly display blanket and production process thereof |
| CN114086397A (en) * | 2021-10-08 | 2022-02-25 | 杭州诺邦无纺股份有限公司 | High-density non-woven fiber material and preparation method thereof |
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| CN114086397B (en) * | 2021-10-08 | 2023-08-08 | 杭州诺邦无纺股份有限公司 | High-density non-woven fiber material and preparation method thereof |
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