CN1178820A - Polypropene pressure sensitive adhesive tape and making method - Google Patents
Polypropene pressure sensitive adhesive tape and making method Download PDFInfo
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- CN1178820A CN1178820A CN 97121698 CN97121698A CN1178820A CN 1178820 A CN1178820 A CN 1178820A CN 97121698 CN97121698 CN 97121698 CN 97121698 A CN97121698 A CN 97121698A CN 1178820 A CN1178820 A CN 1178820A
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- sensitive adhesive
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Abstract
The polypropene pressure sensitive adhesive tape includes bidirectional extended polypropene film, polyolefine resin, pressure sensitive adhesive of ABA type block copolymer thermoplastic elastomer, and it features that between the polypropene film base material and the pressure sensitive adhesive there is one middle layer comprising polyolefine resin and additive. It is one composite three-layer structure prepared through the coextrusion in plastic extruder of polyolefine resin middle layer and the pressure sensitive adhesive layer, the extrusion of polypropene film layer and the compounding of the layers. It is used in packing, and it is tear resistant and has fast adhesive layer.
Description
The present invention relates to wrapping sealing tape, specifically a kind of polypropene pressure sensitive adhesive tape.
Polypropene pressure sensitive adhesive tape is present most widely used a kind of packaging adhesive adhesive tape, the general emulsion acrylate class pressure-sensitive adhesive that adopts, the solvent-type acrylic ester of employing or rubber type pressure-sensitive adhesive are also arranged, the base material that uses is BiOriented Polypropylene Films, its working method is coating method, often abbreviates BOPP joint sealing sealing tape on market as.
The existing production history for many years of emulsion-type Biaxially oriented polypropylene film (BOPP) pressure-sensitive adhesive tape; but there are three defectives in this sealing tape; when promptly adopting the emulsion-type pressure-sensitive adhesive of content about 50%; for effectively drying by the fire the part of anhydrating; have to the drying tunnel lengthening of coating machine; its coating line generally can reach more than 20 meters; equipment takes up an area of many; power consumption is big, and the solvent-borne type power consumption is also big; more be unfavorable for environment protection, impelling strength is relatively poor during polypropylene low temperature; relatively more responsive during impact to breach; easily tear, therefore in production and use, sealing tape is often torn phenomenon; increased spillage of material; also influenced actual use, in addition, the base adhesion force of pressure-sensitive acrylate adhesive and base material film is very poor; come off from base material film easily, very easily pollute the surface that is stuck.
Purpose of the present invention adopts increases one deck is unstretched or amount of tension is less low temperature resistant plastics film as the middle layer between BiOriented Polypropylene Films and pressure-sensitive adhesive, to improve the ability of pressure-sensitive adhesive tape anti tear under normal temperature or low temperature, in addition by plastics extruder with pressure-sensitive adhesive and middle layer coextrusion, be combined with each other with BiOriented Polypropylene Films then, constitute the polypropene pressure sensitive adhesive tape that has three-layer composite structure, can not come unstuck, belong to no-solvent type.
In order to achieve the above object, what at first will solve is which kind of material the middle layer adopts, be all good consistency will be arranged between the selected material in middle layer and base material and the pressure-sensitive adhesive, prevent that adhesive layer from peeling off from base material, secondly, adopt the thermoplastic elastomer pressure-sensitive adhesive and the middle layer coextrusion of which kind of type, to reach three layers of firm compound purpose.For this reason, design a kind of polypropene pressure sensitive adhesive tape, comprise BiOriented Polypropylene Films, polyolefin resin, ABA type block interpolymers thermoplastic elastomer pressure-sensitive adhesive, it is characterized in that between BiOriented Polypropylene Films base material and the ABA type block interpolymers thermoplastic elastomer pressure sensitive adhesive adhesion coating middle layer being arranged, the middle layer is made of polyolefin resin and additive, ABA type block interpolymers thermoplastic elastomer pressure-sensitive adhesive can be made up of following material composition, by weight ratio: SIS block interpolymers 100 weight parts, petroleum resin 100 weight parts that fusing point is 100 ℃, antioxidant 1010 number 1 weight part, melt index is 2 new LDPE (film grade) 40 weight parts.The polyolefin resin melt index in middle layer between 1-50, regulate its molecular weight after, melt index in the 20-35 scope, and with 25-30 for well.The polyolefine in middle layer can add organic or mineral dye and special tinting material, and its concentration range of colour batch of using as color concentrate is between 0.5-5%.The melt index of the polyolefin resin that is added in the thermoplastic elastomer pressure-sensitive adhesive in the 0.5-20 scope, and with 2-10 for well, its addition in weight part in 5-150 part, and with 20-80 part for well.Middle layer polyolefine tree refer to the thermoplastic elastomer pressure-sensitive adhesive in the content of the high molecular phenolic antioxidant that added, ratio in the ratio in layers of material is between the 0.1-2%, and the ratio of the content of benzotriazole category UV light absorber in layers of material is between the 1-2%.The masterbatch concentration of the mineral filler of adding in the pressure-sensitive clear and bright stick of middle layer polyolefine and thermoplastic elastomer is between 1-10%.Three layers of composite polypropylene pressure-sensitive adhesive tape total thickness are in 0.03-0.16 millimeter scope, and wherein BiOriented Polypropylene Films is the 0.01-0.10 millimeter, and the middle layer polyolefin resin is the 0.01-0.02 millimeter, and the pressure sensitive adhesive adhesion coating is the 0.01-0.04 millimeter.By the polyolefin resin in middle layer with as the thermoplastic elastomer of pressure-sensitive adhesive through the plastics extruder coextrusion, and compound through extruding with BiOriented Polypropylene Films as base material, constitute by three layers of compound polypropene pressure sensitive adhesive tape.
To achieve these goals, adopt polyolefin resin proper as the middle layer, for example can adopt new LDPE (film grade), high density polyethylene(HDPE), ultra-low density polyethylene, linear low density polyethylene, polypropylene, polybutene, ethylene-vinyl acetate, ethylene-alpha-olefin interpolymer, the propylene-alpha olefin interpolymer, ethylene-octene interpolymers etc., its melt index is generally proper between 1-50.In addition, also find polypropylene homo body or its interpolymer or its blend and originally be similar polymers as the BiOriented Polypropylene Films of base material, consistency is fine, in addition owing to concern like the polar phase, is SBS Thermoplastic Elastomer (styrene-butadiene-styrene) as the polypropylene homo body in middle layer or its interpolymer or its blend with ABA type blocked polymers as the pressure-sensitive adhesive main raw, SIS (styrene-isoprene-phenylethene), SEBS (styrene-ethylene/octene-vinylbenzene), SEPS (styrene-ethylene/propylene-styrene) also has good consistency, and thermoplastic elastomer is that main pressure-sensitive adhesive is the good material that can adopt the plastics extruder extrusion moulding.
Yet, the SBS thermoplastic elastomer easily causes oxidation cross-linked when high-temperature fusion, have a strong impact on extrusion moulding, and the meeting oxidative degradation when high-temperature fusion of SIS thermoplastic elastomer, melt viscosity is obviously descended, consider above-mentioned factor, when coextrusion, adopt lower processing temperature as far as possible, but polyacrylic processing temperature is generally all more than 200 ℃, the present invention has adopted the method for regulating molecular weight for this reason, reduce molecular weight by conditioning agent, polyacrylic processing temperature is descended to some extent, so just avoid or reduced thermoplastic elastomer easily producing the possibility of oxidation cross-linked or oxidative degradation.Polypropylene after the modification is after measured weighed the size of molecular weight with melt index, then generally in the 20-35 scope, and with 25-30 for well, and processing temperature can reduce 20-40 ℃.As what the tackifier in the tackiness agent used its derivative of rosin, terpine resin and material modified, petroleum resin, polyisobutene etc. and other subsidiary material such as oxidation inhibitor, anti-aging agent, tenderizer, static inhibitor, weighting agent, tinting material etc. are arranged.
But above-mentioned pressure-sensitive adhesive is when melt extruding, viscosity is still on the low side, extrude for adapting to screw rod, in this pressure-sensitive adhesive, add with pressure-sensitive adhesive and consistency is arranged preferably and the bigger polyolefine of melt viscosity, as new LDPE (film grade), high density polyethylene(HDPE), the blend of linear low density polyethylene, polypropylene, ethylene-vinyl acetate etc. and above-mentioned materials.Its melt index is typically chosen in the 0.5-20 scope, and with 2-10 for well.Adding polyolefin resin does not influence the fundamental property of pressure-sensitive adhesive, thus its addition in weight part in 50-150 part, and with 20-80 part for well.
Three layers of composite polypropylene pressure-sensitive adhesive tape, owing to adopt the coextru-lamination working method, pressure-sensitive adhesive tape cools off by cooling water circulation cooling cylinder, speed of cooling is fast, and production efficiency is greatly improved, and adds man-hour cutting, owing to be difficult for tearing and improved yield rate, thereby make under the much the same situation of product thickness and common BOPP joint sealing sealing tape, not only improved quality product, production cost and also descended to some extent, increased competitive power of product.
Three layers of composite pressure-sensitive adhesive adhesive tape making by above-mentioned materials, its total thickness does not have special restriction, but usual thickness is at the 0.03-0.16 millimeter, and wherein BiOriented Polypropylene Films is the 0.01-0.10 millimeter, the middle layer polyolefine is the 0.01-0.02 millimeter, and the pressure sensitive adhesive adhesion coating is the 0.01-0.04 millimeter.
As everyone knows, coloring plastic is very convenient, in the polyolefine of middle layer, add various organic or inorganic pigment, various coloury pressure-sensitive adhesive tapes be can make, some special tinting materials that unusual coloring effect is arranged such as pearly pigment, fluorescent colorant, metal powder class pigment etc. also can be added to adapt to different purposes; This shows that accessibility that it is painted and effect are that coating method is difficult to reach.
BiOriented Polypropylene Films and above-mentioned co-extrusion material compound tense, its composite surface can corona treatment, also can be without corona treatment, but in the front of BiOriented Polypropylene Films or reverse side all printing word and pattern, but better with composite surface, can prevent that printing-ink from coming off.
The present invention can adopt various types of forcing machine machine-shapings.
Polypropene pressure sensitive adhesive tape of the present invention, because anti tear and the performance that is difficult for coming unstuck are preferably arranged, so purposes is unrestricted, can be applied to advertisement and marking material, also can be applicable to surface protecting material etc.
Fig. 1 is the structure iron of polypropene pressure sensitive adhesive tape of the present invention.
Referring to Fig. 1: 1 is BiOriented Polypropylene Films or its multi-layer compound film, and 2 is polyolefin resin, and 3 is ABA type block interpolymers thermoplastic elastomer pressure-sensitive adhesive.
Below be specific embodiments of the invention embodiment one
SIS block interpolymers (K ratn D-1107) 100 weight parts, fusing point are that 100 ℃ petroleum resin 100 weight parts, antioxidant 1010 number 1 weight part, melt index is the adhesive layer that 2 new LDPE (film grade) 40 weight parts, above-mentioned component become pressure-sensitive adhesive tape, melt index is that 2 new LDPE (film grade) is as the middle layer, above-mentioned two layer materials are extruded into two layers of matrix material from single screw extrusion machine with the co-extrusion flat-die respectively, are that 0.03 millimeter BiOriented Polypropylene Films is through extruding the pressure-sensitive adhesive tape that is combined into three-decker with thickness then.
After tested:
Hold viscous force 500 minutes (25 * 25CM 1000g)
Peeling force 10N/25mm
Hand tear test, promptly severing the degree of depth in the edge of laminated film is 0.5 millimeter breach, common BOPP pressure-sensitive adhesive tape is very easily torn, and three layers of composite polypropylene sealing tape are difficult to tear, but adopt cutting unit still can give transversely cutting easily.Embodiment two
Melt index be 7 new LDPE (film grade) as the middle layer, all the other are identical with embodiment one.Embodiment three
Melt index be 3 high density polyethylene(HDPE) as the middle layer, all the other are identical with embodiment one.Embodiment four
Melt index be 10 high density polyethylene(HDPE) as the middle layer, all the other are identical with embodiment one.Embodiment five
Melt index be 2 linear low density polyethylene as the middle layer, replace SIS D-1107 with SBS block coenosarc (K raton D-1102), all the other are identical with embodiment one.Embodiment six
Melt index be 6 linear low density polyethylene as the middle layer, all the other are identical with embodiment five.Embodiment seven
Melt index be the ethylene-vinyl acetate of 3.5 vinyl acetate contents 14% as the middle layer, all the other are identical with embodiment five.Embodiment eight
Melt index be 25 the polypropylene of regulating through molecular weight regulator as the middle layer, all the other are identical with embodiment one.Embodiment nine
Melt index be 28 the ethylene propylene copolymer of regulating through molecular weight regulator as the middle layer, all the other are identical with embodiment one.
Claims (8)
1. polypropene pressure sensitive adhesive tape, comprise BiOriented Polypropylene Films, polyolefin resin, ABA type block interpolymers thermoplastic elastomer pressure-sensitive adhesive, it is characterized in that between BiOriented Polypropylene Films base material and the ABA type block interpolymers thermoplastic elastomer pressure sensitive adhesive adhesion coating middle layer being arranged, the middle layer is made of polyolefin resin and additive, ABA type block interpolymers thermoplastic elastomer pressure-sensitive adhesive is made up of following material composition, by weight ratio: SIS block interpolymers 100 weight parts, petroleum resin 100 weight parts that fusing point is 100 ℃, antioxidant 1010 number 1 weight part, melt index is 2 new LDPE (film grade) 40 weight parts.
2. polypropene pressure sensitive adhesive tape as claimed in claim 1, the polyolefin resin melt index that it is characterized in that the middle layer between 1-50, regulate its molecular weight after, melt index in the 20-35 scope, and with 25-30 for well.
3. polypropene pressure sensitive adhesive tape as claimed in claim 1 is characterized in that the polyolefine in middle layer can add organic or mineral dye and special tinting material, and its concentration range of colour batch of using as color concentrate is between 0.5-5%.
4. polypropene pressure sensitive adhesive tape as claimed in claim 1, the melt index that it is characterized in that the polyolefin resin that added in the thermoplastic elastomer pressure-sensitive adhesive is in the 0.5-20 scope, and with 2-10 for well, its addition in weight part in 5-150 part, and with 20-80 part for well.
5. polypropene pressure sensitive adhesive tape as claimed in claim 1, it is characterized in that middle layer polyolefine tree refer to the thermoplastic elastomer pressure-sensitive adhesive in the content of the high molecular phenolic antioxidant that added, ratio in layers of material is between the 0.1-2%, and the ratio of the content of benzotriazole category UV light absorber in layers of material is between the 1-2%.
6. polypropene pressure sensitive adhesive tape as claimed in claim 1, the masterbatch concentration that it is characterized in that the mineral filler added in the pressure-sensitive clear and bright stick of middle layer polyolefine and thermoplastic elastomer is between 1-10%.
7. polypropene pressure sensitive adhesive tape as claimed in claim 1, it is characterized in that three layers of composite polypropylene pressure-sensitive adhesive tape total thickness are in 0.03-0.16 millimeter scope, wherein BiOriented Polypropylene Films is the 0.01-0.10 millimeter, the middle layer polyolefin resin is the 0.01-0.02 millimeter, and the pressure sensitive adhesive adhesion coating is the 0.01-0.04 millimeter.
8. the working method of polypropene pressure sensitive adhesive tape as claimed in claim 1, it is characterized in that by the polyolefin resin in middle layer with as the thermoplastic elastomer of pressure-sensitive adhesive through the plastics extruder coextrusion, and compound with BiOriented Polypropylene Films through extruding as base material, constitute by three layers of compound polypropene pressure sensitive adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97121698 CN1178820A (en) | 1997-11-27 | 1997-11-27 | Polypropene pressure sensitive adhesive tape and making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97121698 CN1178820A (en) | 1997-11-27 | 1997-11-27 | Polypropene pressure sensitive adhesive tape and making method |
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| Publication Number | Publication Date |
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| CN1178820A true CN1178820A (en) | 1998-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97121698 Pending CN1178820A (en) | 1997-11-27 | 1997-11-27 | Polypropene pressure sensitive adhesive tape and making method |
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| CN (1) | CN1178820A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709201A (en) * | 2009-12-14 | 2010-05-19 | 上海应用技术学院 | Method for preparing polystyrene-polyisoprene-polystyrene ternary segmented copolymer hot melt pressure-sensitive adhesive |
| CN103663361A (en) * | 2013-12-30 | 2014-03-26 | 哈尔滨理工大学 | Flexible mechanical photoetching stripping process method of silicon substrate or ceramic substrate |
| CN103788887A (en) * | 2014-02-18 | 2014-05-14 | 周坤先 | Transparent non-adhesive protective film |
| CN106281085A (en) * | 2016-08-18 | 2017-01-04 | 宁波卓胜新材料有限公司 | A kind of auto-parts self-adhesion gas shielded adhesive tape and preparation method thereof |
| CN109536068A (en) * | 2018-11-16 | 2019-03-29 | 宁波激智科技股份有限公司 | A kind of high viscous protective film and preparation method thereof |
| CN111361122A (en) * | 2017-12-22 | 2020-07-03 | 福建恒安家庭生活用品有限公司 | Preparation method of soft base membrane based on SIS elastomer |
-
1997
- 1997-11-27 CN CN 97121698 patent/CN1178820A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709201A (en) * | 2009-12-14 | 2010-05-19 | 上海应用技术学院 | Method for preparing polystyrene-polyisoprene-polystyrene ternary segmented copolymer hot melt pressure-sensitive adhesive |
| CN103663361A (en) * | 2013-12-30 | 2014-03-26 | 哈尔滨理工大学 | Flexible mechanical photoetching stripping process method of silicon substrate or ceramic substrate |
| CN103663361B (en) * | 2013-12-30 | 2016-03-23 | 哈尔滨理工大学 | The flexible mechanical lithography stripping process of a kind of silicon chip or ceramic substrate |
| CN103788887A (en) * | 2014-02-18 | 2014-05-14 | 周坤先 | Transparent non-adhesive protective film |
| CN103788887B (en) * | 2014-02-18 | 2016-04-06 | 周坤先 | A kind of transparent protective film without incohesion |
| CN106281085A (en) * | 2016-08-18 | 2017-01-04 | 宁波卓胜新材料有限公司 | A kind of auto-parts self-adhesion gas shielded adhesive tape and preparation method thereof |
| CN111361122A (en) * | 2017-12-22 | 2020-07-03 | 福建恒安家庭生活用品有限公司 | Preparation method of soft base membrane based on SIS elastomer |
| CN111361119A (en) * | 2017-12-22 | 2020-07-03 | 福建恒安家庭生活用品有限公司 | Preparation method of soft base membrane based on SEBS (styrene-ethylene-butadiene-styrene) elastomer |
| CN111361121A (en) * | 2017-12-22 | 2020-07-03 | 福建恒安家庭生活用品有限公司 | Preparation method of soft basement membrane based on SEPS (styrene-ethylene-propylene-styrene) elastomer |
| CN111361120A (en) * | 2017-12-22 | 2020-07-03 | 福建恒安家庭生活用品有限公司 | Preparation method of soft base film based on SBS elastomer |
| CN109536068A (en) * | 2018-11-16 | 2019-03-29 | 宁波激智科技股份有限公司 | A kind of high viscous protective film and preparation method thereof |
| CN109536068B (en) * | 2018-11-16 | 2021-08-17 | 宁波激智科技股份有限公司 | High-viscosity protective film and preparation method thereof |
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