CN103692659A - Preparation method of high-temperature compounded polyvinyl chloride decorative material - Google Patents
Preparation method of high-temperature compounded polyvinyl chloride decorative material Download PDFInfo
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- CN103692659A CN103692659A CN201310720065.9A CN201310720065A CN103692659A CN 103692659 A CN103692659 A CN 103692659A CN 201310720065 A CN201310720065 A CN 201310720065A CN 103692659 A CN103692659 A CN 103692659A
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- polyvinyl chloride
- embossing
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Abstract
The invention relates to a preparation method of a high-temperature compounded polyvinyl chloride decorative material. The preparation method comprises a calendering process and a knurling and cooling process which form a forming process of a rolling process of a polyvinyl chloride thin film. The method is characterized in that in the knurling and cooling process, a heating medium is introduced to a knurling roll, and the temperature range of the heating medium is 80-130 DEG C. Compared with the prior art, the preparation method has the advantages that during compositing, texture is maintained stable and the glossiness is not remarkably changed.
Description
Technical field:
The present invention relates to a kind of manufacture method of plastics.
Background technology:
Traditional shape, the surface of polymer profile are used the techniques such as spray, painting to carry out the incrustation of section bar more, as spray various coating.But along with the raising of people to the security of coating and feature of environmental protection understanding, and the reason such as spraying coating process efficiency is low, spraying coating process is substituted gradually, and on market, many uses are at each section bar surface recombination one deck thermoplastic macromolecule material now, and wherein polyvinyl chloride decoration material is used more.The use of polyvinyl chloride decorative film is now more and more extensive, is mainly used in household cabinet, wardrobe, door and window, audio amplifier, along with the raising of product quality, has first promoted the use of the interior storehouse of automobile, boats and ships, aircraft, high ferro etc. and has decorated.
At the Surface of profile composite high-molecular material of various shapes, can realize by the method for thermal-adhering or plastics sucking moulding.These two kinds of methods all belong to hot complex method, and hot combined temp is 160-180 ℃.Because hot combined temp is higher, part thermoplastic macromolecule material starts to occur melting, and melt viscosity sharply declines, and under the effect of residual internal stress, occurs the phenomenon that shrink on surface.Surface trends towards smoothly so, causes the embossing texture of thermoplastic macromolecule material itself fuzzy, and glossiness uprises, i.e. " texture retains not enough " or " loose line ".
At various thermoplastic macromolecule materials, pvc material is better, but still not ideal enough.In the rolling process forming process of polyvinyl chloride film, polyvinyl chloride film is peeled off from calendering running roller, then passes through knurling rolls and rubber roll, and film is in the moulding of thermoplasticity state lower corrugated, cooling.Generally, rubber roll is normal temperature, passes into cold water in the middle of knurling rolls, when polyvinyl chloride film enters between two rollers, temperature is 160-170 ℃, in the time of out, temperature is 50-60 ℃, passes into cold water and makes film cooling fast after knurling rolls embossing, has kept embossing effect clearly.Polyvinyl chloride film is quick when cooling, and because film temperature is lower, free volume is little, and strand cannot be subjected to displacement, and can only be stretched by part strand, and part strand is compressed; Along with temperature further declines, strand no longer moves, and product approval has kept desirable embossing effect, simultaneously also residual internal stress.The embossing of this method is to rely on strand to stretch and compression forms, be a kind of reversible deformation, also can be described as tool memory effect.But this series products is carrying out secondary operations---180 ℃ of hot compound tenses, and the quick strand being fixed when cooling moves again, the strand retraction being stretched, compressed strand resilience, residual stress is discharged.Because the motion of part strand changes product surface texture, tend to fuzzy, glossiness brightens.
Summary of the invention:
Goal of the invention of the present invention is to provide a kind of compound tense can keep texture to keep stable, and glossiness does not have the manufacture method of the compound polyvinyl chloride decoration material of the high temperature of significant change.
The present invention is achieved in that calender line, the embossing cooling procedure that comprises the rolling process forming process that forms polyvinyl chloride film, and its special feature is in knurling rolls, to pass into heating agent in embossing cooling procedure, and heat medium temperature scope is 80-130 ℃.When polymeric membrane is by knurling rolls and rubber roll gap, in the time of out, the temperature of polymeric membrane exceeds 10-20 ℃ than the temperature of knurling rolls, is about 100-140 ℃.At this higher temperature, the strand of polymeric membrane still can move, under the pressure-acting in embossing process, because temperature is higher, free volume is large, and strand is displaced to corresponding position like a cork, thereby formation deformation, this deformation is irreversible, does not have a memory effect.What occur due to the polymeric membrane of embossing molding under this technique is the reversible deformation that the permanent deformation that produces of strand displacement rather than elastic deformation produce, carry out secondary operations---hot compound tense, strand no longer produces and recovers or very slight recovery, it is good that the decorative pattern on polymeric membrane surface also just keeps, and can not thicken and even disappear.
Compared with the prior art the present invention, has compound tense and can keep texture to keep stable, and glossiness does not have the advantage of significant change.
The specific embodiment:
Now the present invention is described in further detail in conjunction with the embodiments:
Take polyvinyl chloride film as example, and when polyvinyl chloride film enters knurling rolls and rubber roll gap, temperature is 160-170 ℃, passes into the deep fat of 110 ℃ in knurling rolls, is 120-130 ℃ when polyvinyl chloride film is peeled off knurling rolls.We have chosen certain sand grains class line as embossing texture, corresponding conventional is quick coolingly spends 0.2 millimeter the most deeply by knurling rolls embossing texture, glossiness is 12, the present invention has selected than conventional and coolingly by knurling rolls embossing texture, has spent the most deeply dark 0.15-0.25 millimeter fast, be that knurling rolls embossing texture is spent the most deeply at 0.35-0.45 millimeter, embossing texture glossiness is 7-9 knurling rolls, when peeling off knurling rolls, polyvinyl chloride film stretched, dark embossing and the mute degree of light change in control range, the embossing texture finally obtaining is consistent with the conventional fast embossing texture that cooling press flower process obtains.Carry out heat compound after, it is clear that polyvinyl chloride film texture in embodiment keeps, and glossiness does not significantly improve.From knurling rolls out, the roller of process normal temperature, by air Slow cooling for film.
The film that reference example obtains for conventional quick cooling press flower process, the index of embodiment and reference example contrasts as following table:
| ? | Reference example | Embodiment |
| The compound rear texture of heat keeps effect | Texture shoals, unintelligible | Clean mark |
| The compound front glossiness of heat | 5.2 | 5.7 |
| The compound rear glossiness of heat | 14 | 6.3 |
Claims (2)
1. the manufacture method of the compound polyvinyl chloride decoration material of high temperature, the calender line, the embossing cooling procedure that comprise the rolling process forming process that forms polyvinyl chloride film, it is characterized in that in knurling rolls, passing into heating agent in embossing cooling procedure, heat medium temperature scope is 80-130 ℃.
2. the manufacture method of the compound polyvinyl chloride decoration material of high temperature according to claim 1, is characterized in that the knurling rolls embossing texture in embossing cooling procedure is spent the most deeply at 0.35-0.45 millimeter, and embossing texture glossiness is 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720065.9A CN103692659A (en) | 2013-12-24 | 2013-12-24 | Preparation method of high-temperature compounded polyvinyl chloride decorative material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720065.9A CN103692659A (en) | 2013-12-24 | 2013-12-24 | Preparation method of high-temperature compounded polyvinyl chloride decorative material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103692659A true CN103692659A (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310720065.9A Pending CN103692659A (en) | 2013-12-24 | 2013-12-24 | Preparation method of high-temperature compounded polyvinyl chloride decorative material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0395814A2 (en) * | 1989-05-01 | 1990-11-07 | Gencorp Inc. | Polyvinylchloride lamina and process for making it |
| CN102532747A (en) * | 2010-12-27 | 2012-07-04 | 佛山市天安塑料有限公司 | Polyvinyl chloride decoration material and preparation method thereof |
| CN202965298U (en) * | 2012-11-13 | 2013-06-05 | 邱伟生 | Heating device for wall paper or wall cloth embossing system |
| CN103144236A (en) * | 2013-02-26 | 2013-06-12 | 广东冠盛塑胶有限公司 | Production process of PVC (polyvinyl chloride) calendered film |
| CN103158253A (en) * | 2011-12-09 | 2013-06-19 | 广东天安新材料股份有限公司 | Embossing method for polyvinyl chloride film |
| EP2653282A1 (en) * | 2012-04-20 | 2013-10-23 | New Bath | Method for producing a sheet of composite material |
-
2013
- 2013-12-24 CN CN201310720065.9A patent/CN103692659A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0395814A2 (en) * | 1989-05-01 | 1990-11-07 | Gencorp Inc. | Polyvinylchloride lamina and process for making it |
| CN102532747A (en) * | 2010-12-27 | 2012-07-04 | 佛山市天安塑料有限公司 | Polyvinyl chloride decoration material and preparation method thereof |
| CN103158253A (en) * | 2011-12-09 | 2013-06-19 | 广东天安新材料股份有限公司 | Embossing method for polyvinyl chloride film |
| EP2653282A1 (en) * | 2012-04-20 | 2013-10-23 | New Bath | Method for producing a sheet of composite material |
| CN202965298U (en) * | 2012-11-13 | 2013-06-05 | 邱伟生 | Heating device for wall paper or wall cloth embossing system |
| CN103144236A (en) * | 2013-02-26 | 2013-06-12 | 广东冠盛塑胶有限公司 | Production process of PVC (polyvinyl chloride) calendered film |
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Application publication date: 20140402 |