Strapping band having core formed from a thermosetting resin and a covering formed from a thermoplastic resin

[Detailed explanation of the device]

This design is related with the union material for beltlike packing. In the former, a Is iron belt is used as union material for packing comparatively for many years, recent years come and the thing made of a synthetic resin has also come to be used. Each of both has merits and demerits, and they lives together, without inclining toward any. As a packing material made of a synthetic resin, the thing which was suitable for union in polypropylene resin and which was formed beltlike is used widely. However, this union material for packing is unsuitable as a band for union of the thing in which weight tends to carry out load collapse greatly since the physical-properties top of polypropylene resin and the degree of growth of creep are big large moreover, and the With rose iron belt is used. On the other hand, the iron belt had various faults, such as that coloring other than the fault on the use in which a cut section is [ big being / for which it stops to a joined part and needs an ingredient although it pulls and has low creeping property with intensity and the degree of low growth / a thing, that rust is generated ] dangerous is difficult, and a heavy thing. The place which this design was made in view of the problem of the above conventional union material for packing, and is made into the object, The defect of both of the union material which consists of the conventional union material and iron belt made of a synthetic resin is improved, and it is in providing the union material for beltlike packing suitable for the big union of a package which can join both ends very simply and firmly while pulling and having low creep property with intensity and the degree of low growth. Hereinafter, the suitable example of this design is explained in full detail, while referring to an accompanying drawing. A figure shows one example of the union material for beltlike packing by this device. The union material shown in the figure consists of tape-like core part 1 which binds the textiles for reinforcement of a filament with thermosetting resin in one, and outer layer part 2 consisting of the thermoplastics which covers and surrounds this tape-like core part 1 first. The above-mentioned thermosetting resin and the above-mentioned thermoplastics have at least one kind of common monomer ingredient as a polymerization ingredient, respectively. Thereby, the union material for packing of the unified shape of a tape [ Thin ] (beltlike) is constituted. In the joining section, mutually, both resin presents chemical compatibility, and is firmly combined in it, and core part 1 and outer layer part 2 which consider the synthetic resin which has the respectively same monomer as a polymerization ingredient as composition are unified. Next, unsaturated polyester resin is used for the union material of the above-mentioned composition as thermosetting resin, When the case where it fabricates using the ABS resin (acrylics Nidrou butadiene styrene copolymer resin) which has the monomer ingredient same as thermoplastics as unsaturated polyester resin is described, Several filaments for reinforcement, such as point One glass fiber, are pulled, are arranged, and it lets an unhardened unsaturated-polyester-resin tub pass, and impregnates with resin between reinforcement textiles. Next, in order to fabricate the reinforcement textiles bunch with which resin was impregnated in the shape of [ of closing in ] a tape while removing surplus resin through an allocated type dice, and to form outer layer part 2 for core part 1 a form threat and after an appropriate time first, It covers with the fused ABS resin, while applying pressure from the upper and lower sides and making a compound resin object stick an ABS resin layer into a bar with an after-covering cooling device, a roller, or cooling water, it hardens in boiling water or a suitable heat source, and it forms in the shape of [ suitable for packing and union / predetermined ] a tape. Since both unsaturated polyester resin and ABS resin have styrene as a monomer used as that polymerization ingredient in this example, If ABS resin of the letter of fusion is covered and surrounded at core part 2 which makes unsaturated polyester resin the main ingredients, finally the firm adhesion combined state accompanied by a chemical combination will be acquired via the styrene which is a common monomer ingredient over both junction interface by such composition. Also when using outstanding polystyrene system resin of AS resin which has styrene as a polymerization ingredient, or shock resistance instead of ABS resin of the above-mentioned example, the above-mentioned, same adhesion joint effect is acquired. In order to band a package together by the union material for beltlike packing of above this design, this union material can be twisted around the perimeter of a package, those both ends can be piled up, and external thermoplastics can carry out fusion combination mutually by that thermal melting arrival nature by [ this ] doing partial heating and pressurization of. as mentioned above, according to the union material for beltlike packing of this design, core part 1 which binds the textiles for reinforcement of a filament with thermosetting resin in one is mainly big -- pulling -- intensity and the degree of low growth, While sharing low creep property, fusion junction can be carried out very simply and certainly by heating and pressurizing both ends with the thermoplastics of outer layer part 2. And since each resin of core part 1 and outer layer part 2 has a monomer ingredient common as a polymerization ingredient, respectively, in the interface, it has been pasted up firmly, the firm adhesion combined state accompanied by chemical combination is presented, and thereby, both can become in one, can pull and can raise intensity further. Since core part 1 is covered with outer layer part 2 consisting of thermoplastics, the internal textiles for reinforcement not being outside exposed, and not fracturing, or not being pierced in a worker's hand becomes the beltlike union material which was extremely suitable for packing. ABS which has styrene it is whose thermosetting resin from unsaturated polyester resin, and whose thermoplastics is one of the polymerization ingredients of the unsaturated polyester as a polymerization ingredient, When using it, choosing from either AS or shock-proof polystyrene system resin, in addition to the above-mentioned various effects, the shock-proof outstanding band form can be provided extremely. Here, the result of having examined the aptitude as union material for packing of the union material for packing of this design which has the composition which was mentioned above, and the conventional union material for packing, respectively is shown below. the union material of this design with which the examination was presented -- as the textiles for reinforcement -- a glass fiber -- as thermosetting resin -- unsaturated polyester -- ABS resin is used as thermoplastics. the union material by this design, the conventional iron belt, and the union material made from polypropylene -- respectively -- tensile strength (kg) and combination -- powerful -- (kg) and a shock -- when the powerful examination was done, the result as shown in the following table was obtained. here -- a shock -- it becomes the most important index, in order that it may be an index which shows the shock-proof intensity of the union material in the state where the package was banded together and that it is powerful may judge the aptitude as union material for packing. The shock strong power in the above-mentioned table is what dropped the veil package of weight 150ko on which six union material was hung from the lift of 577L, and asked for it, and is denoted by the cutting number / the number of fall packing. The union material for beltlike packing by this design has the performance which was markedly superior to the conventional thing in the shock strong power especially, and shows that this is a thing with the aptitude which was excellent in the union material by this design especially as an object for packing so that clearly also from the test result which appeared in the above-mentioned table. Also in tensile strength and joint strong power, it has the outstanding characteristic which is sharply superior to the union material made from conventional polypropylene, and is not at all inferior to the union material of the conventional iron belt. And it is clear union material's by this design for the joined part not to take a clasp implement, and for rust not to be generated, either, not to have the fault that a cut section is dangerous, either, but to excel the thing of the conventional iron belt markedly as union material for packing also with these points. As mentioned above, of course, as for improving the defect of both of the union material which consists of the conventional union material and iron belt made of a synthetic resin, the union material for beltlike packing by this device has the outstanding characteristic which is not in the conventional union material as union material for packing.

[Brief Description of the Drawings]

a figure shows one example of the union material for beltlike packing concerning this design -- it is a cutting perspective view in part. 1 ...... core part, 2 ...... outer layer part.