CN2502776Y

CN2502776Y - Filter membrane

Info

Publication number: CN2502776Y
Application number: CN 01253479
Authority: CN
Inventors: 于荣珍; 许维恭
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-05
Filing date: 2001-09-05
Publication date: 2002-07-31
Anticipated expiration: 2011-09-05

Abstract

The utility model discloses a filter membrane, which is composed of adhesive tapes. The adhesive tapes are arranged with open pores which are covered with filter membranes. The filter membranes comprise at least a layer of breathable membrane which can permeate the air but can not permeate bacteria; the areas of the open pores on the adhesive tapes is smaller than those of the filter membranes; the breathable membrane is formed by the thermo-curing of polypropylene fiber or polyethylene fiber; a plurality of open pores are provided and a scratch taking the cut-off site is provided between adjacent open pores. The utility model has the following advantages that 1) the utility model has wide purposes, which can be widely used in industry, agriculture and medicine; 2) the adhesive tapes is provided with binder, which do not need other fabricating machinery and can bond the utility model directly in any necessary occasions; 3) users can directly choose the filter membrane size in use; 4) the manufacturing process is simple. Because of aseptic production and aseptic package, the utility model is simple and convenient in use.

Description

A kind of filter membrane

Invention field

The utility model belongs to a kind of filter membrane, relates in particular to a kind of filter membrane that can be widely used in industry, agricultural and pharmaceutical sector.

Technical background

The utility model is at Chinese patent---(patent No. is filter membrane: the improvement of carrying out on basis ZL98229712.2).Filter membrane described in this patent comprises at least one nonwoven layer, and having on the nonwoven layer can be by the air-vent of air.Binder couse is connected on the nonwoven layer.Binder couse is an adhesive layer, and adopting special installation can be one with adhesive layer and nonwoven layer thermosetting.Thereby filter membrane is connected by adhesive layer and edible mushroom and spawn culture bag.But because nonwoven layer and binding agent must be fixed by machine hot pressing ability, unsuitable temperature and pressure cause damage all can for nonwoven layer and adhesive layer during hot pressing.

Summary of the invention

The utility model is achieved in that a kind of filter membrane, is made up of adhesive tape, it is characterized in that, perforate is set on adhesive tape, covers the filter membrane sheet in the perforate.

Above-mentioned adhesive tape is a continous way, and perforate is equidistantly respectively opened on the adhesive tape of continous way, and the cut that shows off-position is arranged on the appropriate location between the adjacent apertures.

The size of the perforate on the above-mentioned adhesive tape can change, and littler than filter membrane sheet all the time, so that the filter membrane sheet can cover the perforate on the adhesive tape fully.

And the neighboring area that makes institute's perforate on the adhesive tape can also bond behind bonding filter membrane sheet and need the occasion used, and the shape of perforate also may change.

Above-mentioned filter membrane comprises that one deck at least can see through air and can not see through the breathable film of the air-vent of bacterium, and this filter membrane sheet can be nonwoven layer or weave cotton cloth, can be individual layer two-layer or two-layer more than.Can be to adopt polypropylene fibre, the breathable film that polyethylene fibre or other any fibers are made.

Description of drawings

Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.

Fig. 1 is the structural representation of first preferred embodiment of the present utility model;

Fig. 2 is the profile of Fig. 1 along A-A ' section;

Fig. 3 is the structural representation of second preferred embodiment of the present utility model;

Fig. 4 is the profile of Fig. 3 along B-B ' section.

Embodiment

With reference to figure 1～2, this is that the utility model is applied to an agriculture example of going up as ventilated membrane on edible mushroom and the spawn culture bag.Can recognize with reference to the accompanying drawings, the utility model by the adhesive tape 1 of continous way constitute, this adhesive tape is commercially available adhesive tape.On the adhesive tape 1 of continous way, equidistantly respectively offer porosely 2, the cut 3 that is off-position is arranged on the appropriate location between hole 2 and the hole 2.Filter membrane sheet 4 bonds by 2 neighboring areas, hole and covers on the hole 2.Filter membrane sheet 4 in the present embodiment comprises two nonwoven layer 5 and 6, and nonwoven layer 5 and 6 adopts polypropylene fibre and polyethylene fibre thermosetting to form.The air-vent 7 that can see through air and bacterium can't be seen through is arranged on nonwoven layer 5 and 6.

Embodiment 2, and with reference to figure 3～4, embodiment 2 is basic identical with the formation of embodiment 1, and difference is adhesive tape 8 for separate type, during fabrication just according to required size cutting.

Adopt filter membrane of the present utility model, have following advantage: 1) of many uses, can be widely used in industry, agricultural and pharmaceutical sector.2) be used for carrying on the adhesive tape binding agent, just the utility model directly can be bondd without any need for process equipment is attached at the occasion of any needs.Needed filter membrane size when 3) user can directly select the utility model to use.4) manufacture craft is simple, because the utility model is a sterile production, therefore aseptic packaging is used simple especially, convenient.

More than all embodiment only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.

Claims

1, a kind of filter membrane is made up of adhesive tape, it is characterized in that, perforate is set on adhesive tape, covers the filter membrane sheet in the perforate.

2, filter membrane according to claim 1 is characterized in that, the breathable film that described filter membrane sheet can see through air by one deck at least and not see through bacterium is formed.

3, filter membrane according to claim 1 and 2 is characterized in that, the described perforated area on the adhesive tape is less than the area of described filter membrane sheet.

4, filter membrane according to claim 2 is characterized in that, described breathable film is that polypropylene fibre or polyethylene fibre thermosetting form.

5, filter membrane according to claim 1 and 2 is characterized in that, described perforate is a plurality of, and the cut that is off-position is arranged between the adjacent apertures.