CN104480637B - The preparation technology of a kind of hot-melt adhesive film - Google Patents
The preparation technology of a kind of hot-melt adhesive film Download PDFInfo
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- CN104480637B CN104480637B CN201410742637.8A CN201410742637A CN104480637B CN 104480637 B CN104480637 B CN 104480637B CN 201410742637 A CN201410742637 A CN 201410742637A CN 104480637 B CN104480637 B CN 104480637B
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- melt adhesive
- hot
- adhesive film
- spinning jet
- temperature
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
Abstract
The present invention proposes the preparation technology of a kind of hot-melt adhesive film, it is characterised in that this kind of nethike embrane has double-layer structure, by online melt-blown compounding technology, by melt-blown respectively for the hot melt adhesive resin of two kinds of different melting points, different performance and be superimposed as nethike embrane successively. The advantage of the method is, it is possible to hot-melt adhesive film performance adjusted easily and flexibly, improves the restriction that nethike embrane is produced by the fusing point of hot melt adhesive resin simultaneously.
Description
Technical field
The present invention relates to the preparation technology of a kind of hot-melt adhesive film, it is particularly useful for producing the hot melt adhesive compound nethike embrane product with property.
Background technology
Hot-melt adhesive film without solvent, the feature such as pollution-free, curing speed is fast, heat pressing process performance is good, is widely used in the industries such as clothes, weaving, automobile, electronics with it. CN94105906.5 provides the hot-melt adhesive film technology of preparing of a kind of at least one Rotating fields, by between fiber immediately overlap, tangle, condensation and form hot-melt adhesive film. CN200810033753.7 provides the preparation method of a kind of hot-melt adhesive film, and this patent is by adding nucleator, and controls resin melt temperature, spray silk speed etc., prepares uniform pore diameter, gram heavily stable hot-melt adhesive film. CN201010175654.X propose a kind of hot-melt adhesive film produce nethike embrane shaping, transmit and wrap-up, this device is by the gradient of reasonable adjusting travelling belt and speed, and use deflector roll cleverly, the hot-melt adhesive film gram weight not only making to be formed evenly, be convenient to rolling, and greatly can improve throughput and save human cost. Although, present hot-melt adhesive film production technology and eqUipment relative maturity, but, the performance of hot melt adhesive resin is also had certain requirement by nethike embrane production hot melt adhesive, if melting means or fusing point are in a certain specified range.
Along with the high speed development of industry, the performance requriements of hot-melt adhesive film is also more and more higher, meanwhile, in the Application Areas that some are new, the performance of hot-melt adhesive film be also been proposed new requirement. As, demand hot-melt adhesive film has lower fusing point, and low melting point hot melt adhesive easily occurs the problems such as sticky net band, nethike embrane are broken, nethike embrane aperture uniformity coefficient variation in process of production. These new problems, rely on conventional nethike embrane complete processing to be difficult to effectively be solved. In order to meet market further to the performance requriements of hot-melt adhesive film, solve the contradiction between the processing characteristics of hot-melt adhesive film resin own and use properties, become an important problem.
Summary of the invention
For solving the various problems that above-mentioned low-melting-point resin occurs in nethike embrane process of manufacture, the present invention proposes a kind of novel hot-melt adhesive film preparation technology.
A kind of hot-melt adhesive film preparation technology, key step is as follows:
(1) will be pumped in the spinning jet of two independent temperature controls after different for fusing point two kinds of hot melt adhesive meltings respectively;
(2) hot melt adhesive that fusing point is higher is from the first spinning jet spray silk, and is drawn on travelling belt under airflow function and forms reticular membrane, subsequently, through the first Infrared Heating district, forms the first layer nethike embrane;
(3) hot melt adhesive that fusing point is lower, from the 2nd spinning jet spray silk, and is drawn to travelling belt under airflow function, simultaneously while hot with the nethike embrane compound of step (2) after through the 2nd Infrared Heating district, form double-deck hot-melt adhesive film;
(4) described double-deck nethike embrane is through cooling, crystallization solidification, rolling, forms hot-melt adhesive film product;
The hot melt adhesive that described fusing point is higher refers to that the whole fusing point of DSC is the hot melt adhesive of 130-180 DEG C, and the hot melt adhesive that described fusing point is lower refers to that the whole fusing point of DSC is the hot melt adhesive of 70-110 DEG C;
In the first described spinning jet, temperature is 210-240 DEG C, and in the 2nd described spinning jet, temperature is 180-200 DEG C;
In the first described Infrared Heating district, temperature is 100-130 DEG C; The temperature range in the 2nd described Infrared Heating district is 60-90 DEG C;
The spray silk speed that distance between above-mentioned two spinning jets is 1.0-2.0m first spinning jet is 6-20m/min, and the spray silk speed of the 2nd spinning jet is 6-20m/min;
Said flow is pressurized air or nitrogen, and its flow velocity is 50-120m/min;
Above-mentioned travelling belt is pierce tap, and its speed is 8-20m/min.
Useful effect:
Owing to adopting two independent melt blown webbing systems, each melt blown webbing system has the system that can independently supply wind, temperature control and feed, thus can realize the hot melt adhesive resin to different melting points and carry out spray silk one-tenth net processing. At the melt-blown hot melt adhesive resin with higher melt of the first spinning jet, the effect of this layer of nethike embrane is that the follow-up low melting point hot melt adhesive of adjustment is to the adhesion property of steel wire net-belt, simultaneously, it is to increase the initial tensile strength of hot melt adhesive compound nethike embrane, and then the spray net of low-melting-point resin and rolling are completed smoothly. 2nd melt blown webbing system of recycling temperature control independence, the overlapping spray silk that covers becomes net successively, it is difficult to be processed into the low melting point hot melt adhesive resin of nethike embrane under melt-blown conventional working condition, the twine of follow-up nethike embrane and above nethike embrane is by melting from bonding, and bond the random overlap joint of formation, equally distributed hot-melt adhesive film mutually. And operation involved in the present invention all completes continuously in a Production Flow Chart, it is possible to greatly reduce fault in production, it is to increase the efficiency that low melting point hot-melt adhesive film is produced and handiness, be applicable to suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation technology of hot-melt adhesive film proposed by the invention.
Embodiment
Embodiment 1
It is pumped into the first separate spinning jet and the 2nd spinning jet respectively by after high-melting-point (the whole fusing point 135 DEG C of DSC) hot melt adhesive and low melting point (the whole fusing point 105 DEG C of DSC) hot melt adhesive melting; Spacing 1m between two spinning jets, travelling belt (pierce tap) works, and its transfer rate is 13m/min; Opening the first spinning jet, adjusting temperature in it is 210 DEG C, and spray silk speed is 10m/min, and air-flow (pressurized air) speed is 90m/min, and high-melting-point hot melt adhesive is from the first spinning jet and sprays silk air-flow draws and forms reticular membrane to travelling belt; This reticular membrane, through the first Infrared Heating district heating that temperature is 100 DEG C, forms the first layer nethike embrane; Open the 2nd spinning jet, adjusting temperature in it is 180 DEG C, spray silk speed is 8m/min, gas velocity (nitrogen) is 100m/min, low melting point hot melt adhesive is from the 2nd spinning jet and sprays silk to travelling belt air-flow draws, and with the first layer nethike embrane compound while hot, the 2nd Infrared Heating district being 60 DEG C through temperature subsequently adds thermosetting Double-level Reticulated film;Then through cooling, crystallization solidification, rolling forms final low melting point hot melt adhesive compound nethike embrane product. Mean pore size 110 order of this nethike embrane, average gram heavy 32g/m2��
Embodiment 2
It is pumped into the first separate spinning jet and the 2nd spinning jet respectively by after high-melting-point (the whole fusing point 147 DEG C of DSC) hot melt adhesive and low melting point (the whole fusing point 73 DEG C of DSC) hot melt adhesive melting; Spacing 1m between two spinning jets, travelling belt (pierce tap) works, and adjusting its transfer rate is 13m/min; Opening the first spinning jet, adjusting temperature in it is 220 DEG C, and spray silk speed is 8m/min, and air-flow (nitrogen) speed is 100m/min, and high-melting-point hot melt adhesive is from the first spinning jet and sprays silk air-flow draws and forms reticular membrane to travelling belt; This reticular membrane, through the first Infrared Heating district heating that temperature is 110 DEG C, forms the first layer nethike embrane; Open the 2nd spinning jet, adjusting temperature in it is 200 DEG C, spray silk speed is 8m/min, gas velocity (nitrogen) is 100m/min, low melting point hot melt adhesive is from the 2nd spinning jet and sprays silk to travelling belt air-flow draws, and with the first layer nethike embrane compound while hot, the 2nd Infrared Heating district being 80 DEG C through temperature subsequently adds thermosetting Double-level Reticulated film; Then through cooling, crystallization solidification, rolling forms final low melting point hot melt adhesive compound nethike embrane product. Mean pore size 100 order of this nethike embrane, average gram heavy 28g/m2��
Embodiment 3
It is pumped into the first separate spinning jet and the 2nd spinning jet respectively by after high-melting-point (the whole fusing point 180 DEG C of DSC) hot melt adhesive and low melting point (the whole fusing point 100 DEG C of DSC) hot melt adhesive melting; Spacing 2m between two spinning jets, travelling belt (pierce tap) works, and adjusting its transfer rate is 15m/min; Opening the first spinning jet, adjusting temperature in it is 240 DEG C, and spray silk speed is 12m/min, and air-flow (pressurized air) speed is 100m/min, and high-melting-point hot melt adhesive is from the first spinning jet and sprays silk air-flow draws and forms reticular membrane to travelling belt; This reticular membrane, through the first Infrared Heating district heating that temperature is 130 DEG C, forms the first layer nethike embrane; Open the 2nd spinning jet, adjusting temperature in it is 190 DEG C, spray silk speed is 10m/min, gas velocity (pressurized air) is 120m/min, low melting point hot melt adhesive is from the 2nd spinning jet and sprays silk to travelling belt air-flow draws, and with the first layer nethike embrane compound while hot, the 2nd Infrared Heating district being 90 DEG C through temperature subsequently adds thermosetting Double-level Reticulated film; Then through cooling, crystallization solidification, rolling forms final low melting point hot melt adhesive compound nethike embrane product. Mean pore size 115 order of this nethike embrane, average gram heavy 36g/m2��
The preparation technology of the hot-melt adhesive film that the present invention carries; first spinning jet and the ground distance of two spinning jets, temperature, spray silk speed, gas velocity, the transfer rate of travelling belt and the temperature in two Infrared Heating districts; can adjusting according to actual needs, the scheme that the present invention protects should not be restricted because of the proposition of above-described embodiment.
The preparation technology of hot-melt adhesive film proposed by the invention, owing to adopting two independent melt blown webbing systems, each melt blown webbing system has the system that can independently supply wind, temperature control and feed, it is possible to realizes the hot melt adhesive resin to different melting points and carries out spray silk one-tenth net processing. At the melt-blown hot melt adhesive resin with higher melt of the first spinning jet, the effect of this layer of nethike embrane is that the follow-up low melting point hot melt adhesive of adjustment is to the adhesion property of steel wire net-belt, simultaneously, it is to increase the initial tensile strength of hot melt adhesive compound nethike embrane, and then the spray net of low-melting-point resin and rolling are completed smoothly. 2nd melt blown webbing system of recycling temperature control independence, the overlapping spray silk that covers becomes net successively, it is difficult to be processed into the low melting point hot melt adhesive resin of nethike embrane under melt-blown conventional working condition, the twine of follow-up nethike embrane and above nethike embrane is by melting from bonding, and bond the random overlap joint of formation, equally distributed hot-melt adhesive film mutually. And operation involved in the present invention all completes continuously in a Production Flow Chart, it is possible to greatly reduce fault in production, it is to increase the efficiency that low melting point hot-melt adhesive film is produced and handiness, be applicable to suitability for industrialized production.
Claims (8)
1. the preparation technology of a hot-melt adhesive film, it is characterised in that, comprise the following steps:
(1) will be pumped in first spinning jet with independent temperature control and the 2nd spinning jet after different for fusing point two kinds of hot melt adhesive meltings respectively;
(2) hot melt adhesive that fusing point is higher sprays silk from the first spinning jet with one first pre-set velocity, and is drawn on travelling belt under airflow function and forms reticular membrane, subsequently, through the heating of the first Infrared Heating district, forms the first layer nethike embrane;
(3) hot melt adhesive that fusing point is lower sprays silk from the 2nd spinning jet with one the 2nd pre-set velocity, and is drawn to travelling belt under airflow function, heats through the 2nd Infrared Heating district while hot with after described the first layer nethike embrane compound simultaneously, forms double-deck nethike embrane;
(4) described double-deck nethike embrane is through cooling, crystallization solidification, rolling, forms hot-melt adhesive film product;
The hot melt adhesive that described fusing point is higher refers to that the whole fusing point of DSC is the hot melt adhesive of 130-180 DEG C, the hot melt adhesive that described fusing point is lower refers to that the whole fusing point of DSC is the hot melt adhesive of 70-110 DEG C, in described first spinning jet, temperature is higher than temperature in the 2nd described spinning jet, and in described first Infrared Heating district, temperature is higher than the temperature in the 2nd described Infrared Heating district.
2. the preparation technology of hot-melt adhesive film as claimed in claim 1, it is characterised in that, in described first spinning jet, temperature is 210-240 DEG C, and in the 2nd described spinning jet, temperature is 180-200 DEG C.
3. the preparation technology of hot-melt adhesive film as claimed in claim 1, it is characterised in that, in described first Infrared Heating district, temperature is 100-130 DEG C, and the temperature range in the 2nd described Infrared Heating district is 60-90 DEG C.
4. the preparation technology of hot-melt adhesive film as claimed in claim 1, it is characterised in that, the distance between described first spinning jet and described 2nd spinning jet is 1.0-2.0m.
5. the preparation technology of hot-melt adhesive film as claimed in claim 4, it is characterised in that, described first pre-set velocity is 6-20m/min.
6. the preparation technology of hot-melt adhesive film as claimed in claim 4, it is characterised in that, described 2nd pre-set velocity is 6-20m/min.
7. the preparation technology of hot-melt adhesive film as claimed in claim 4, it is characterised in that, described air-flow is pressurized air or nitrogen, and its flow velocity is 50-120m/min.
8. the preparation technology of hot-melt adhesive film as claimed in claim 4, it is characterised in that, described travelling belt is pierce tap, and its transfer rate is 8-20m/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410742637.8A CN104480637B (en) | 2014-12-08 | 2014-12-08 | The preparation technology of a kind of hot-melt adhesive film |
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| CN201410742637.8A CN104480637B (en) | 2014-12-08 | 2014-12-08 | The preparation technology of a kind of hot-melt adhesive film |
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| CN104480637A CN104480637A (en) | 2015-04-01 |
| CN104480637B true CN104480637B (en) | 2016-06-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805595A (en) * | 2015-04-08 | 2015-07-29 | 昆山天洋热熔胶有限公司 | Hot melt adhesive net film and preparation process thereof |
| CN112251909A (en) * | 2020-09-21 | 2021-01-22 | 江苏惠沣环保科技有限公司 | Manufacturing process of high-low temperature integrally-formed hot-melt net film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098151A (en) * | 1994-06-02 | 1995-02-01 | 北京市超纶无纺技术公司 | Self-adhesive melt-jetting non-woven hot-molten netty film |
| JPH10237752A (en) * | 1997-02-20 | 1998-09-08 | Kuraray Co Ltd | Multi-layered nonwoven stretch fabric and its production |
| JP2007321290A (en) * | 2006-05-31 | 2007-12-13 | Kao Corp | Stretchable nonwoven fabric |
| CN101880942A (en) * | 2010-06-11 | 2010-11-10 | 天津工业大学 | Non-woven composite material and preparation method thereof |
| CN203487074U (en) * | 2013-08-05 | 2014-03-19 | 天津静达合成材料有限公司 | Hot melt adhesive |
-
2014
- 2014-12-08 CN CN201410742637.8A patent/CN104480637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098151A (en) * | 1994-06-02 | 1995-02-01 | 北京市超纶无纺技术公司 | Self-adhesive melt-jetting non-woven hot-molten netty film |
| JPH10237752A (en) * | 1997-02-20 | 1998-09-08 | Kuraray Co Ltd | Multi-layered nonwoven stretch fabric and its production |
| JP2007321290A (en) * | 2006-05-31 | 2007-12-13 | Kao Corp | Stretchable nonwoven fabric |
| CN101880942A (en) * | 2010-06-11 | 2010-11-10 | 天津工业大学 | Non-woven composite material and preparation method thereof |
| CN203487074U (en) * | 2013-08-05 | 2014-03-19 | 天津静达合成材料有限公司 | Hot melt adhesive |
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Address after: 215341 No. 366, Shipu Zhongjie Road, Qiandeng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan Tianyang New Material Co.,Ltd. Patentee after: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Address before: 215341 No. 366, Wenpu Road, Qiandeng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY |
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Address after: 215341 No. 366, Shipu Zhongjie Road, Qiandeng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan Tianyang New Material Co.,Ltd. Patentee after: Tianyang New Material (Shanghai) Technology Co.,Ltd. Patentee after: EAST CHINA University OF SCIENCE AND TECHNOLOGY Address before: 215341 No. 366, Shipu Zhongjie Road, Qiandeng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Kunshan Tianyang New Material Co.,Ltd. Patentee before: SHANGHAI TIANYANG HOT MELT ADHESIVE Co.,Ltd. Patentee before: EAST CHINA University OF SCIENCE AND TECHNOLOGY |