CN103878102A - Direct gluing method for PU film - Google Patents
Direct gluing method for PU film Download PDFInfo
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- CN103878102A CN103878102A CN201410151679.4A CN201410151679A CN103878102A CN 103878102 A CN103878102 A CN 103878102A CN 201410151679 A CN201410151679 A CN 201410151679A CN 103878102 A CN103878102 A CN 103878102A
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Abstract
The invention discloses a direct gluing method for a PU film. The method comprises the steps that a PET film is attached to the one face of the PU film by oppositely pressing rubber rollers, a conveyer belt conveys the PU film coated with the PET film to a gluing rubber roller for gluing the other face of the PU film, and then the conveyer belt conveys the glued PU film to a drying oven for solidifying the glue; after the PU film with the solidified glue is output from the drying oven, a PET film wind-up roll peels off the PET film attached to the PU film, and a wind-up barrel rolls up the glued PU film. The direct gluing method for the PU film overcomes the defect that a PU film produced based on the existing technology is low in glueyness. Due to the fact that a layer of tensile protective film is arranged on the bottom face of the PU film in a compound mode during direct gluing, the PU film is directly glued and the problem that the PU film is scratched and is easily stretched during direct gluing is solved at the same time. Surface gluing uniformity and adhesiveness of the PU film are ensured.
Description
Technical field
The present invention relates to film gluing, the particularly direct glue spreading method of a kind of PU film, by attaching PET film at face of PU film, and then to the direct gluing of another face of PU film, has improved the viscose properties of PU film.
Background technology
PU material normal temperature surface can be low, and tension can be elongated, after rising temperature, softer, can approach molten stream mode, cannot be coated with.PU film tension, be heated and can extend, deliquescing, under normal temperature, the surface of PU film can be very low, very low with most of adhesive bonding force, so traditional direct coating process cannot use on PU film gluing, PU coating technique is realized glue is coated in release liners at present, compound with PU film again after oven for drying, glue to be transferred on PU film, the shortcoming of this technique is: because PU material surface energy is very low, cause it can not be well compound with glue, make adhesivity too low, and this technique is both complicated, production efficiency is not high yet.
Summary of the invention
The object of the invention is to provide a kind of PU film direct glue spreading method, by attaching PET film at face of PU film before gluing, and then to the direct gluing of another face of PU film, has improved the viscose properties of PU film.
To achieve these goals, the solution of the present invention is: the direct glue spreading method of a kind of PU film, passive one support membrane is attached to PU film overlaying below by upside rubber rollers and downside rubber rollers from PU film, wherein downside rubber rollers is a hot-rolling, a conveyer belt is sent the PU film that attaches upper support membrane into gluing rubber rollers gluing on PU film, then conveyer belt is sent the PU film after gluing into the solid glue of baking oven, Gu the PU film after glue from baking oven out, support membrane wind-up roll is peeled off the support membrane being attached to below PU film, then a wind-up roll is rolled the PU film with gluing.
Scheme is further: described support membrane is PET film.
Scheme is further: described method further: described PU film, after gluing rubber rollers gluing, then enters the solid glue of baking oven after an even glue process.
Scheme is further: described even glue process be PU film after gluing rubber rollers again through a rubber flap, realize the control to PU film surface coating thickness and the uniformity by the distance of controlling rubber flap and PU film surface.
Scheme is further: described even glue process be PU film after gluing rubber rollers again through a soft brush plate, realize the control to PU film surface coating thickness and the uniformity by the pressure of controlling soft brush plate hairbrush and PU film Surface Contact.
Scheme is further: the temperature of described hot-rolling is controlled at 60 degrees Celsius to 110 degrees Celsius, and the solid glue temperature of described baking oven is controlled at 80 degrees Celsius to 110 degrees Celsius.
Scheme is further: the temperature of described hot-rolling is controlled at 80 degrees Celsius to 90 degrees Celsius, and the solid glue temperature of described baking oven is controlled at 90 degrees Celsius to 100 degrees Celsius.
The invention has the beneficial effects as follows: overcome the too low deficiency of PU film adhesivity that existing explained hereafter goes out; owing to being compounded with one deck tension diaphragm in bottom surface in direct gluing; make PU film in direct gluing; scuffing and the easy problem stretching of also having avoided the direct gluing of PU film to occur; guarantee uniformity and the tack of PU film surface coating, improved the viscose properties of PU film.
Below in conjunction with drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is the process flow diagram of the present invention with even glue process.
The specific embodiment
PU is the abbreviation of Polyurethane, and Chinese polyurethanes by name is called for short polyurethane, and PU is polyurethane, PU film is polyurethane film, be a kind of nontoxic environment-friendly materials, human body skin, without any injury, and is widely used in to the fields such as garment material, health care, leather.PU material normal temperature surface can be low, and tension can be elongated, after rising temperature, softer, can approach molten stream mode, cannot be coated with.PU film tension, is heated and can extends, deliquescing, and under normal temperature, the surface of PU film can be very low, very low with most of adhesive bonding force, so traditional direct coating process cannot use.
The direct glue spreading method of a kind of PU film, as shown in Figure 1, 1 one support membrane volumes 2 of a PU film volume are put film by deflector roll 3, support membrane is attached to PU film overlaying below by upside rubber rollers 4 and downside rubber rollers 5 from PU film, wherein downside rubber rollers 5 is hot-rollings, a conveyer belt 6 is sent the PU film that attaches upper support membrane into gluing rubber rollers 7 gluing on PU film, gluing rubber rollers 7 is arranged on a lower end of depositing glue tank 8, then conveyer belt is sent the PU film after gluing into the solid glue of baking oven 9, Gu the PU film after glue from baking oven out, support membrane wind-up roll 10 is peeled off the support membrane being attached to below PU film, then a wind-up roll 11 is rolled the PU film with gluing.
In embodiment: described support membrane can use the film of plurality of specifications model, what the present embodiment used is PET film, and PET film has another name called high temperature resistance polyester film.It has excellent physical property, chemical property and dimensional stability, the transparency, recuperability.
In embodiment: described method further: described PU film, after gluing rubber rollers gluing, then enters the solid glue of baking oven after an even glue process.
In embodiment: as shown in Figure 2, described even glue process be PU film after gluing rubber rollers again through a rubber flap 12, realize the control to PU film surface coating thickness and the uniformity by the distance of controlling rubber flap and PU film surface.
In embodiment: described even glue process be PU film after gluing rubber rollers again through a soft brush plate, realize the control to PU film surface coating thickness and the uniformity by the pressure of controlling soft brush plate hairbrush and PU film Surface Contact.
In embodiment: the temperature of described hot-rolling is controlled at 60 degrees Celsius to 110 degrees Celsius, the solid glue temperature of described baking oven is controlled at 80 degrees Celsius to 110 degrees Celsius.
In embodiment: the temperature of described hot-rolling is controlled at best 80 degrees Celsius to 90 degrees Celsius, the solid glue temperature of described baking oven is controlled at best 90 degrees Celsius to 100 degrees Celsius.
In embodiment key be adopt PET as substrate and PU film 60～110 ℃ compound, PU deliquescing at 60～110 ℃ of temperature, material surface energy increases, and has certain adhesive power, is firmly bonded together through compound and PET film.Second step carries out direct coated glue layer to the PU film that has PET substrate, coating need to be warmed to 80～110 ℃ of uniform temperatures, at this temperature, PU film surface is softening, molecular thermalmotion aggravation, surface can be improved, can with the fine combination of glue-line, because there is PET substrate, can there is not the obvious change of physical property in PET, have very high tensile ability between 80～110 ℃, can not be out of shape and extend.Have PET as backing material, PU film can not be out of shape, at this temperature and the fine combination of glue-line.Complete in coating, under normal temperature, this PET film is easy to separate with PU film, can not damage PU film.PU film at high temperature surface-active improves, and the glue being directly coated with is well bonding, then is cooled to normal temperature also can preserve good combination with glue.
The present embodiment has solved PU film and cannot directly be coated with glue-line and easily peel off, the problem that adhesive strength is low, the employing PET of innovation is as mould release membrance and backing material, utilizes cohesive under the high temperature of PU itself, the ingenious problem that has solved PU normal temperature surface can be low, low with glue-line bond strength.
The effect of baking oven makes PU film temperature bring up to 60～110 ℃, and at this temperature, PU surface can increase, and well bonding with PET film or glue-line, the effect of roller gives material and the certain pressure of glue-line, controls flatness and the thickness of glue-line.
Claims (7)
1. the direct glue spreading method of PU film, it is characterized in that, passive one support membrane is attached to PU film overlaying below by upside rubber rollers and downside rubber rollers from PU film, wherein downside rubber rollers is a hot-rolling, a conveyer belt is sent the PU film that attaches upper support membrane into gluing rubber rollers gluing on PU film, then conveyer belt is sent the PU film after gluing into the solid glue of baking oven, Gu the PU film after glue from baking oven out, support membrane wind-up roll is peeled off the support membrane being attached to below PU film, and then a wind-up roll is rolled the PU film with gluing.
2. the direct glue spreading method of a kind of PU film according to claim 1, is characterized in that, described support membrane is PET film.
3. the direct glue spreading method of a kind of PU film according to claim 1, is characterized in that, described method further: described PU film, after gluing rubber rollers gluing, then enters the solid glue of baking oven after an even glue process.
4. the direct glue spreading method of a kind of PU film according to claim 3, it is characterized in that, described even glue process be PU film after gluing rubber rollers again through a rubber flap, realize the control to PU film surface coating thickness and the uniformity by the distance of controlling rubber flap and PU film surface.
5. the direct glue spreading method of a kind of PU film according to claim 3, it is characterized in that, described even glue process be PU film after gluing rubber rollers again through a soft brush plate, realize the control to PU film surface coating thickness and the uniformity by the pressure of controlling soft brush plate hairbrush and PU film Surface Contact.
6. according to the direct glue spreading method of a kind of PU film described in claim 1 or 2 or 4 or 5, it is characterized in that, the temperature of described hot-rolling is controlled at 60 degrees Celsius to 110 degrees Celsius, and the solid glue temperature of described baking oven is controlled at 80 degrees Celsius to 110 degrees Celsius.
7. according to the direct glue spreading method of a kind of PU film described in claim 1 or 2 or 4 or 5, it is characterized in that, the temperature of described hot-rolling is controlled at 80 degrees Celsius to 90 degrees Celsius, and the solid glue temperature of described baking oven is controlled at 90 degrees Celsius to 100 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151679.4A CN103878102B (en) | 2014-04-16 | 2014-04-16 | The direct glue spreading method of a kind of PU film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151679.4A CN103878102B (en) | 2014-04-16 | 2014-04-16 | The direct glue spreading method of a kind of PU film |
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| Publication Number | Publication Date |
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| CN103878102A true CN103878102A (en) | 2014-06-25 |
| CN103878102B CN103878102B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410151679.4A Active CN103878102B (en) | 2014-04-16 | 2014-04-16 | The direct glue spreading method of a kind of PU film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393232A (en) * | 2018-02-09 | 2018-08-14 | 福建省泉州大富豪家具有限公司 | One kind being based on mattress manufacture cylinder type glue obliterator and its glue spreading method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118594U (en) * | 1991-12-25 | 1992-10-14 | 马竞康 | Apparatus for the prodn. of pressure-sensitive rubber belt |
| JPH08127531A (en) * | 1994-10-28 | 1996-05-21 | Bando Chem Ind Ltd | Substrate for percutaneously administering medicine |
| CN1217955A (en) * | 1997-11-14 | 1999-06-02 | 阿克佐诺贝尔公司 | Method of glueing and device therefor |
| CN101229701A (en) * | 2007-01-23 | 2008-07-30 | 上海未来先行科技有限公司 | Process of manufacturing compound film packing material |
| CN103140351A (en) * | 2010-07-29 | 2013-06-05 | 久光制药株式会社 | Supporting film for tape material and tape material |
-
2014
- 2014-04-16 CN CN201410151679.4A patent/CN103878102B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118594U (en) * | 1991-12-25 | 1992-10-14 | 马竞康 | Apparatus for the prodn. of pressure-sensitive rubber belt |
| JPH08127531A (en) * | 1994-10-28 | 1996-05-21 | Bando Chem Ind Ltd | Substrate for percutaneously administering medicine |
| CN1217955A (en) * | 1997-11-14 | 1999-06-02 | 阿克佐诺贝尔公司 | Method of glueing and device therefor |
| CN101229701A (en) * | 2007-01-23 | 2008-07-30 | 上海未来先行科技有限公司 | Process of manufacturing compound film packing material |
| CN103140351A (en) * | 2010-07-29 | 2013-06-05 | 久光制药株式会社 | Supporting film for tape material and tape material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393232A (en) * | 2018-02-09 | 2018-08-14 | 福建省泉州大富豪家具有限公司 | One kind being based on mattress manufacture cylinder type glue obliterator and its glue spreading method |
| CN108393232B (en) * | 2018-02-09 | 2019-07-12 | 福建省泉州大富豪家具有限公司 | One kind being based on mattress manufacture cylinder type glue obliterator and its glue spreading method |
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| Publication number | Publication date |
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| CN103878102B (en) | 2015-12-02 |
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