CN201235078Y

CN201235078Y - Combined cover

Info

Publication number: CN201235078Y
Application number: CNU2008200404861U
Authority: CN
Inventors: 程继刚
Original assignee: ANHUI HUAFENG PHARMACEUTICAL RUBBER Co Ltd
Current assignee: ANHUI HUAFENG PHARMACEUTICAL RUBBER Co Ltd
Priority date: 2008-07-25
Filing date: 2008-07-25
Publication date: 2009-05-13
Anticipated expiration: 2018-07-25

Abstract

The utility model discloses a combined cover which can be used in plastic bottles, soft bags and other containers, which comprises an outer cover and a sealing piece for sealing a bottleneck, the sealing piece is arranged in the outer cover, the top surface namely the punching surface of the sealing piece is fixedly provided with one layer of protective film, and the outer cover, the sealing piece and the protective film are integrated structures. The combined cover is formed by the outer cover, the sealing piece and the protective film through integrally shaping, and the production process can be finished in one step, and the polluted probability is greatly lowered. The combined cover is not provided with an inner cover, and the sealing piece is made of thermoplastic elastomers, which not only has little dropping chips when in punching, but also lowers the possibility of liquid leakage. The combined cover adopts aluminum foil to replace an easy-pulled ring, which avoids the pollution of plastic particles to medicament caused by tearing at the easy-pulled ring.

Description

A kind of composite cover

Technical field:

This utility model relates to a kind of composite cover, belongs to the drug packaging technical field.

Background technology:

Transfusion, be meant by intravenous drip and go into the intravital high-capacity injection of people, because the particularity of its consumption and administering mode, now become clinical treatment indispensable one big class pharmaceutical dosage form, and developed into the carrier of intravenously administrable and directly play the medicine of therapeutical effect and day show its unique charm by originally supplying needed moisture of patient and nutrition.The glass bottle transfusion is the principal mode of China's transfusion package for a long time always, glass bottle packaging is still adopted in the transfusion of China about 70% at present, but because the vial quality is heavy, high, the cracky of fragility, inconvenience is carried and is transported, therefore, in the sixties in 20th century, the situation that the vial transfusion package technology that is through with rules all the land has appearred with plastic containers (plastic bottle transfusion package, soft bag transfusion package) in the world as the transfusion of packing container.

Now, the situation that vial, plastic bottle, transfusion bag coexist has appearred in the transfusion market, but between all parts of the world district and the country, the operating position of vial, plastic bottle, transfusion bag exists uneven greatly, vial mainly concentrates on Asia and South America, and the American-European popularity rate of plastic bottle, transfusion bag that adopts has reached more than 95%.Though China infusion preparation packing is moulded bottleization, soft bagization is started late, develop rapidly, near the share of China's infusion preparation 30%.

Plastic bottle, the sealing and derive of transfusion bag is different from traditional vial, realize by the composite cover mode, at present, domestic plastic bottle, transfusion bag adopts this mode basically, the structure of this conventional combination lid as shown in Figure 1, between plastics inner cap 3 and plastic outer cover 1, be provided with rubber blanket 2, and be provided with pull-tab 4 at the end face of plastic outer cover, because the existence of plastics inner cap causes the acupuncture resistance big, the exfoliation amount is big, moreover, owing to will tear pull-tab off when using, can produce plastic particles, simultaneously, this composite cover production process is various, and manufacturing cost is higher, opportunities for contamination is big.

The utility model content:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of composite cover that can be used for the new construction of packaging bags such as plastic bottle, transfusion bag.

This utility model technical solution problem adopts following technical scheme:

A kind of composite cover comprises the sealing member that enclosing cover and being used for seals bottleneck, and sealing member is positioned at the inside of enclosing cover, is that acupuncture face is installed with layer protecting film at the end face of described sealing member, and described enclosing cover and sealing member and protecting film are integral structure.

Construction features of the present utility model also is:

Described protecting film is aluminium foil or plastic sheeting.

Described enclosing cover is made by polyethylene or polypropylene, and described sealing member is made by thermoplastic elastic material.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

Composite cover of the present utility model is by enclosing cover, sealing member and one-body molded formation of protecting film three parts, and its production process can be finished in a step, pollutes probability and reduces greatly; Do not have inner cap, sealing member adopts thermoplastic elastic material to make, and not only the acupuncture exfoliation is few, has also reduced the leakage probability; Adopt aluminium foil to substitute pull-tab, stopped because of tearing the pollution of plastic particles that draw ring causes to medicament.

Description of drawings:

Fig. 1 is the structural representation of existing composite cover.

Fig. 2 A is the structural representation of this utility model composite cover.

Fig. 2 B is the vertical view of this utility model composite cover.

Number in the figure: 1, plastic outer cover, 2, rubber blanket, 3, the plastics inner cap, 4, pull-tab, 5, enclosing cover, 6, sealing member, 7, protecting film.

Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

The specific embodiment:

Non-limiting examples is as follows:

Embodiment: referring to Fig. 2 A, Fig. 2 B, the composite cover of present embodiment is made of enclosing cover 5 and sealing member 6; sealing member is positioned at the inside of enclosing cover; being used for mouth of infusion bottle is sealed, is that acupuncture face is installed with layer protecting film 7 at the end face of sealing member, and protecting film is aluminium foil or plastic sheeting.Concrete manufacturing process: at first; produce enclosing cover 5 by injection molding machine of plastic; the raw material of enclosing cover adopts a kind of in polyethylene (being called for short PE) or the polypropylene (being called for short PP); the injection thermoplastic elastic material forms sealing member 6 in the lid of enclosing cover then; the bonding integral body that becomes of sealing member and outer cover; injection and adhesion process are finished in mould; at last; directly cover one deck aluminium foil or plastic sheeting formation protecting film 7 at the acupuncture face of sealing member 6 by heat seal or bonding mode; all one steps of production process finish, and cause contaminated probability to reduce greatly.

The seal of the utility model combination cover adopts thermoplastic elastomer (TPE) to make, and thermoplastic elastomer (TPE) also claims thermoplastic elastomer, Refer to have at normal temperatures the elasticity of rubber, an elastic-like material of plasticization moulding under the high temperature, it be continue natural rubber, So-called third generation rubber after the synthetic rubber is called for short TPE or TPR. Be characterized in: manufacture process does not need chemistry to hand over Connection need not vulcanizing agent and sulfurizing formula, and it is good to have with drug compatibility, high resiliency, and high scalability is difficult for during puncture taking off Bits use safe feature; Since the thermoplasticity of material, recyclable regeneration, tool high-environmental. Simultaneously, it was produced The process automation degree is very high, and the plug dimensionally stable can be realized the operation of little toilet, has avoided environment dust particle and other The pollution of pyrogen material has improved the cleanliness factor of infusion preparation, and labour's spending has been saved in the complete mechanical operation, falls Low production cost. Combination cover of the present utility model can be used for plastic bottle for transfusion, soft bag, etc. the container of splendid attire soup, Can guarantee better the quality of these container inner liquid medicines.

Claims

1, a kind of composite cover; it is characterized in that, the sealing member that comprises enclosing cover and be used for bottleneck is sealed, sealing member is positioned at the inside of enclosing cover; end face at described sealing member is that acupuncture face is installed with layer protecting film, and described enclosing cover and sealing member and protecting film are integral structure.

2, a kind of composite cover according to claim 1 is characterized in that, described protecting film is aluminium foil or plastic sheeting.

3, a kind of composite cover according to claim 1 is characterized in that, described enclosing cover is made by polyethylene or polypropylene, and described sealing member is made by thermoplastic elastic material.