CN105883165B

CN105883165B - A kind of specimen bag and its preparation process

Info

Publication number: CN105883165B
Application number: CN201610401841.2A
Authority: CN
Inventors: 徐双凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-08
Filing date: 2016-06-08
Publication date: 2019-01-04
Anticipated expiration: 2036-06-08
Also published as: CN105883165A

Abstract

The invention discloses a kind of specimen bag, the specimen bag includes bag body and bag bottom, and the bag body includes the first plastic foil and the second plastic foil, wherein is touched by banding line the left and right sides of the first plastic foil and the second plastic foil；The outside sandwich for inserting article is provided on the second plastic foil；The bag bottom is structure as a whole with the first plastic foil and the second plastic foil, when being not used, inwardly folds into bag, when use, it falls to form rectangle and keep specimen bag upright under bag, is respectively formed integral support portion and outer support portion, at left and right sides of rectangle to guarantee the upright stability of specimen bag.The invention also discloses a kind of preparation process of above-mentioned specimen bag, the preparation process is that assembly line is completed, and realizes continuous production, and centre does not pause, not only increases production efficiency, also save production cost, is suitble to large-scale production and application.

Description

A kind of specimen bag and its preparation process

Technical field

The present invention relates to a kind of medical use container more particularly to a kind of specimen bags.

Background technique

In medical research and clinical position, it is often necessary to sample is saved using various specimen bottles, and it is traditional Specimen bottle is using vial mostly, and since vial own wt is big, weight is bigger after impregnating fluid and sample is added, and It is more difficult during transporting and putting, and be easily broken, therefore, using polybag as specimen bag gradually by the blueness of people It looks at.

202006922 U of Chinese patent CN discloses a kind of pathological specimen bag fro, and the pathological specimen bag fro includes transparent plastic Bag, adhesive sticker and sealing strip, wherein be equipped with transparent plastic sheet in transparent plastic bag top edge, transparent plastic sheet edge is equipped with glue Band.The pathological specimen bag fro structure is simple, and which employs transparent plastic sheets, and can be avoided self-adhesive paper, the handwriting is blurred, still, when When sample to be assayed is put into bag, the pathological specimen bag fro cannot be erect, and influence its use, will cause sample to be assayed when serious This spilling, pollutes.

Chinese patent 200820189058.5 disclose one kind can standing posture pathological operation specimen bag, the specimen bag can stand Vertical, easy to use, still, the surface layer of the specimen bag and bottom are individually to prepare, then integral by hot pressing, i.e., Bag body, in this way, its poor sealing, also, preparation process is extremely complex, and whole continuous productive process cannot be achieved.

Summary of the invention

To solve the above-mentioned problems, present inventor has performed sharp studies, design a kind of specimen bag, the specimen bag packet Outside sandwich is included, for inserting article, when unused, the bag bottom of the specimen bag folds into bag from bottom to top, when in use, bag It is beneath to fall to form rectangle, it is respectively formed integral support portion and outer support portion at left and right sides of rectangle, ensure that the firm upright of bag body, keep away Exempted from the spilling of sample or impregnating fluid in bag, also, offered lifting hole(eyelet) in the opening of specimen bag, facilitate specimen bag fetch or Hanging, the sample can be completed with assembly line in processing, not need individually to operate separately, saved processing cost and time, It is suitble to large-scale production, so as to complete the present invention.

One aspect of the present invention provides a kind of specimen bag, specific as follows:

(1) a kind of specimen bag, wherein the specimen bag includes bag body and bag bottom 3, and bag body includes that the left and right sides is touched One plastic foil 1 and the second plastic foil 2, two sides contiguity part constitutes banding line 4, wherein

On the plastic film, it preferably may be provided with the outside sandwich 21 for inserting article on the second plastic foil 2,

The bag bottom 3 and the first plastic foil (1) and the second plastic foil (2) are integrally formed；

(2) specimen bag according to above-mentioned (1), wherein

Bag bottom 3 folds into bag from bottom to top, fold into partially between the first plastic foil 1 and the second plastic foil 2 and with bag Body is affixed, and the left and right sides of the left and right sides for folding into part and the first plastic foil 1, the second plastic foil 2 and outside sandwich 21 passes through side Line 4 is sealed to touch；And/or

On the plastic film, the label 11 that can be write can preferably be printed on the first plastic foil 1；

(3) specimen bag according to above-mentioned (1) or (2), wherein

The lateral length of the outside sandwich 21 is equal to the lateral length of specimen bag, and the longitudinal direction of the outside sandwich 21 is highly less than Longitudinal height of specimen bag, preferably the 1/3~2/3 of longitudinal height of specimen bag,

The bottom side of outside sandwich 21 connects with the bottom side of the second plastic foil 2, the left and right sides of outside sandwich 21 and the second plastic foil 2 The left and right sides connect；And/or

The width of the banding line 4 is 0.5~2.5mm, preferably 1~2mm, more preferably 1.5mm；

(4) specimen bag according to one of above-mentioned (1) to (3), wherein

Bag body top includes opening 5, is provided with sealing strip 51 at opening 5, the sealing strip 51 is by mutually matched close Tongue and sealed groove composition are sealed, tongue and sealed groove is sealed and is respectively arranged at the interior of the first plastic foil 1 and the second plastic foil 2 On wall, optionally, compression push-and-pull switch is provided on sealing strip 51, and/or

Lifting hole(eyelet) 52 is offered above sealing strip 51 at opening 5,

Salient line 53 is provided with above sealing strip 51 at opening 5；

(5) specimen bag according to above-mentioned (4), wherein when using investment specimen fluids, bag body is strutted, and bag bottom 3 is from invagination The highest point of the part left and right sides supports downwards, wherein the middle part that bag bottom folds into part, which is pressurized to sink to opening, forms rectangle 31, rolls over Enter the highest point at left and right sides of part respectively with the right and left Nature Link of rectangle 31, forms integral support portion 61, remaining is not supportted The bag bottom opened folds into part and is still affixed with bag body, forms outer support portion 62, wherein

The length of the rectangle 31 is less than the length of sealing strip 51,

Triangular pyramid space is formed between integral support portion 61 and outer support portion 62；

(6) specimen bag according to one of above-mentioned (1) to (5), wherein

The opening 5 of the specimen bag is formed as follows: first material being poured into and carries out blown film and roll-in, shape in the first extruder At the bar shaped cylinder with sealing tongue and sealed groove, pass through cutting means (such as knife among sealing tongue and sealed groove Piece) it cuts apart with a knife or scissors to form opening 5, the sealing strip 51 at the sealing tongue and sealed groove mutual cooperation composition opening 5；And/or

The bag bottom 3 of the specimen bag is formed as follows: while forming opening 5, using folding device (such as baffle or rotation Covering of the fan) bar shaped cylinder is inwardly folded into 5 opposite sides of opening, it folds into part and forms bar shaped disjunctor bag bottom, it is optional and then logical It crosses earnestly and extrudes banding line 4 at fervent place, to form independent bag bottom；

Another aspect of the present invention provides a kind of preparation process of above-mentioned specimen bag, specific as follows:

(7) preparation process of specimen bag described in a kind of one of above-mentioned (1) to (6), wherein the preparation process include with Lower step:

Step 1, blown film are simultaneously cast: first material being poured into progress blown film and/or roll-in, formation in the first extruder and is had Seal the bar shaped cylinder of tongue and sealed groove；Pass through cutting means (such as blade) among sealing tongue and sealed groove for item Shape cylinder is cut apart with a knife or scissors to form opening 5；Using folding device (covering of the fan of such as baffle or rotation) by bar shaped cylinder and opening 5 opposite one It is folded into lateral, folds into part and form bar shaped disjunctor bag bottom, be respectively formed the first plastics of bar shaped disjunctor in the two sides for folding into part The second plastic foil of film and bar shaped disjunctor, meanwhile, second material is poured into the second extruder and is cast, casting films are formed,

Step 2, hot pressing form outside sandwich: the bar shaped cylinder after folding into being carried out cooling, crosses roller, then in draw Under, the casting films formed through curtain coating are pressed on the second plastic foil of bar shaped disjunctor, to casting films close to bar shaped disjunctor bag bottom Side carries out hot pressing, forms bar shaped disjunctor outside sandwich,

Step 3, earnestly: bar shaped disjunctor specimen bag is carried out earnestly, and extrudes banding line 4 at fervent place, obtains specimen bag；

(8) preparation process according to above-mentioned (7), wherein in step 1,

The first material includes that low density polyethylene (LDPE), linear low density polyethylene, antioxidant, plasticizer are optionally gone back Including antistatic agent and impact modifying agent, and/or

The second material includes that polypropylene, polyethylene, antioxidant, plasticizer further include optionally antistatic agent and punching Modifying agent is hit, and/or

(9) preparation process according to above-mentioned (7) or (8), wherein first extruder uses special die orifice, institute Stating special die orifice includes:

Blown film seam 7, for blowing out cylinder,

Tongue seam 8 is sealed, for blowing out the sealing tongue of sealing strip 51,

Sealed groove seam 9, for blowing out the sealed groove of sealing strip 51, and

Protrusion seam 10, for blowing out salient line 53；

Preferably, the sealing tongue seam 8 and sealed groove seam 9 are connected to blown film seam 7, and/or

Preferably, the protrusion stitches 10 as two or more, preferably 4~12, more preferably 6~10, such as 8 It is a；

(10) preparation process according to one of above-mentioned (7) to (9), wherein

Step 2 and between can carry out print steps: on bar shaped disjunctor plastic foil, on preferably the first plastic foil print mark Label more preferably first print one layer of white background, then on white background process black label, form the label that can write, and/or

Punch out step can be carried out between step 2 and 3: sealing tongue and sealed groove being closed into button, above sealing strip 51 Punching forms lifting hole(eyelet) 52；And/or

In step 3, it is carried out earnestly along the direction vertical with part is folded into, obtained banding line 4 is perpendicular to bag bottom 3.

Detailed description of the invention

Fig. 1 shows the structural schematic diagram when specimen bag is not used；

Main view when being not used Fig. 2 shows the specimen bag；

Fig. 3 shows the rearview when specimen bag is not used；

Fig. 4 shows the structural schematic diagram when specimen bag uses；

Fig. 5 shows the left view when specimen bag uses；

Fig. 6 shows the bottom view when specimen bag uses；

Fig. 7 show Fig. 6 A-A to sectional view；

Fig. 8 shows the bottom section figure of Fig. 4；

Fig. 9 shows the die orifice structure of the first extruder；

Figure 10 shows the partial enlarged view of Fig. 7.

Drawing reference numeral explanation:

The first plastic foil of 1-

The label that 11- can write

The second plastic foil of 2-

21- outside sandwich

3- bags of bottoms

31- rectangle

4- banding line

5- opening

51- sealing strip

52- lifting hole(eyelet)

53- salient line

61- integral support portion

62- outer support portion

The space 63-

7- blown film seam

8- seals tongue seam

9- sealed groove seam

10- protrusion seam

Specific embodiment

Below by attached drawing, the present invention is described in detail, and the features and advantages of the invention will become with these explanations It obtains apparent, clear.

Wherein, although the various aspects of embodiment are shown in the attached drawings, unless otherwise indicated, it is not necessary to draw in proportion Attached drawing processed.

One of the objects of the present invention is to provide a kind of specimen bags, as shown in Figures 1 to 3, the specimen bag include bag body and Bag bottom 3, bag body include the first plastic foil 1 and the second plastic foil 2 that the left and right sides is touched, wherein the first plastic foil 1 and the second modeling Material film 2 is located at the two sides at bag bottom 3, and bag body two sides contiguity part constitutes banding line 4, is attached sealing.Such as Fig. 1~3 Shown, under the state that is not switched on, the first plastic foil 1 and the second plastic foil 2 are overlapped.

A kind of preferred embodiment according to the present invention, as shown in Fig. 2, being printed on the mark that can be write on the first plastic foil 1 Label 11.

In further preferred embodiment, the label 11 that can be write is white gravoply, with black engraved characters.

In embodiment still more preferably, ink used in the label 11 that can write and dilute adjust are environmental protection Product.

Wherein, the label 11 that can be write is used to record the related description of contained sample, such as patient's title, age, in hospital Number, sample title, sample remove time etc..

A kind of preferred embodiment according to the present invention, as shown in figure 3, on the plastic film, preferably on the second plastic foil It is provided with outside sandwich 21.

In further preferred embodiment, the lateral length of the outside sandwich 21 is equal to the lateral length of specimen bag, Longitudinal height of the outside sandwich 21 is less than longitudinal height of specimen bag.

In embodiment still more preferably, longitudinal height of the outside sandwich 21 is longitudinal height of specimen bag 1/3~2/3.

Wherein, the purpose of outside sandwich 21 be keep medical staff easy to use for inserting article, such as case list, or The case where patient can be understood in time, in order to which the state of an illness is accurately analyzed and judged.

A kind of preferred embodiment according to the present invention, the bottom side of outside sandwich 21 connect with the bottom side of the second plastic foil 2.

In further preferred embodiment, the left and right sides phase of the left and right sides of outside sandwich 21 and the second plastic foil It connects.

In embodiment still more preferably, the left and right sides of the left and right sides of outside sandwich 21 and the second plastic foil is logical Banding line 4 is crossed to connect.

Wherein, the lower part of specimen bag is arranged in outside sandwich 21, because if the top of specimen bag is arranged in, is put into article Afterwards, specimen bag is likely to result under the gravity of article to skew, still, outside sandwich is arranged will not then occur in lower part it is askew Phenomenon.

A kind of preferred embodiment according to the present invention, the bag bottom and 2 one bodily form of the first plastic foil 1 and the second plastic foil At as shown in Figure 1, the bag bottom 3 folds into bag from bottom to top, formation folds into part (bag bottom folds into part).

In further preferred embodiment, invagination part be located at the first plastic foil 1 and the second plastic foil 2 it Between, and be affixed with bag body.

In embodiment still more preferably, the left and right sides and the first plastic foil 1, the second plastic foil of part are folded into 2 and outside sandwich 21 the left and right sides pass through banding line 4 touch.

Wherein, the first plastic foil 1 and the second plastic foil 2 are attached sealing by banding line 4, and the banding line 4 hangs down Directly in bag bottom 3.

A kind of preferred embodiment according to the present invention, the width of the banding line 4 are 0.5~2.5mm.

In further preferred embodiment, the width of the banding line 4 is 1~2mm.

In embodiment still more preferably, the width of the banding line 4 is 1.5mm.

Wherein, the width of banding line is controlled in 0.5~2.5mm, is both maintained preferable appearance, is in turn ensured specimen bag side The leakproofness of edge, the extruding effectivelying prevent in transport and use process make banding line crack, lead to the leakage and damage of sample.

A kind of preferred embodiment according to the present invention, as shown in Figure 1, the bag body top includes opening 5, in opening 5 Place is provided with sealing strip 51.

In further preferred embodiment, the sealing strip 51 is by mutually matched sealing tongue and sealed groove group At sealing tongue and sealed groove are respectively arranged on the inner wall of the first plastic foil 1 and the second plastic foil 2, optionally, are being sealed Compression push-and-pull switch is provided on item 51.

In embodiment still more preferably, the sealing strip 51 be one, it is two or more, preferably two.

Wherein, the number of sealing strip 51 is unrestricted, and the more leakproofness of number are better, and still, correspondingly, cost can increase And it is inconvenient when using, it is excellent with two sealing strips therefore.Meanwhile it compressing push-and-pull switch and being used to help user's compression sealing Item facilitates unlatching sealing strip.

A kind of preferred embodiment according to the present invention is hung as shown in Figure 1, offering above sealing strip 51 at opening 5 Hole 52.

In further preferred embodiment, the lifting hole(eyelet) 52 is one or more.

In embodiment still more preferably, when lifting hole(eyelet) is one, it is located on bag body longitudinal center line, when hanging When hole is multiple, multiple lifting hole(eyelet)s are symmetrical around bag body longitudinal center line.

Wherein, the purpose of lifting hole(eyelet) is easy for hanging.

A kind of preferred embodiment according to the present invention is provided with above sealing strip 51 at opening 5 as shown in Figures 1 to 3 Salient line 53.

In further preferred embodiment, as shown in Figures 2 and 3, in the first plastic foil 1 and the second plastic foil 2 Upper end is respectively arranged with a plurality of salient line, such as three, four or five, and preferably four.

Wherein, the effect of salient line is easy for opening specimen bag, because, in opening, the first plastic foil and the second plastics Film can be fit together due to electrostatic interaction, be not easy to separate, if firmly tearing the impregnating fluid or mark that may result in specimen bag This spluttering can all pollute internal sample and external environment.But the salient line in opening setting prevents the first modeling Material film is bonded with the second plastic foil, easily upon opening specimen bag.

A kind of preferred embodiment according to the present invention, the opening 5 are formed as follows: first material is poured into blow moulding machine Be blow molded and roll-in, bar shaped cylinder of the formation with sealing tongue and sealed groove are sealing among tongue and sealed groove It cuts apart with a knife or scissors to form opening by cutting means.

In further preferred embodiment, the sealing tongue and sealed groove cooperate and form at opening 5 Sealing strip 51.

In embodiment still more preferably, the Scissoring device is blade.

A kind of preferred embodiment according to the present invention, as shown in Fig. 4~8, when using investment specimen fluids, bag body is strutted, Form three-dimensional specimen bag wide at the top and narrow at the bottom.

In further preferred embodiment, as shown in Fig. 4, Fig. 6 and Fig. 8, when using investment specimen fluids, bag bottom invagination portion The middle part divided, which is pressurized to sink to opening, forms rectangle 31, as shown in Fig. 4, Fig. 6 and Fig. 7, folds into the highest point point of the partially left and right sides Not with the right and left Nature Link of rectangle 31, integral support portion 61, as shown in Fig. 4, Fig. 6 and Fig. 5, remaining bag not supported are formed Bottom folds into part and is still affixed with bag body, forms outer support portion 62.

In embodiment still more preferably, the length of the rectangle is less than the length of sealing strip 51.

When wherein, using investment specimen fluids, the rectangle of bottom is for realizing the upright of specimen bag, integral support portion and outer support Stability of the portion for realizing specimen bag when upright.Therefore, specimen bag is not the rectangle by bag bottom as all when upright Weight bear part, there are also the integral support portion of rectangle two sides and outer support portions to assist the upright of bag bottom, when keeping its upright more It is firm, it is not easy to skew, and more aesthetically pleasing.

A kind of preferred embodiment according to the present invention, the outer support portion 62 are double-layer structure.

In further preferred embodiment, the outer support portion 62 includes outside outer support portion internal layer and outer support portion Layer.

Wherein, when bag body struts, remaining bag bottom not supported forms outer support portion internal layer, the bag bottom not supported with remaining The bag body being affixed forms outer support portion outer layer,

In embodiment still more preferably, outer support portion internal layer and outer support portion outer layer are affixed.

Wherein, the double-layer structure in outer support portion has consolidated its supporting role, is more advantageous to it and assists specimen bag firm upright.

A kind of preferred embodiment according to the present invention, when using investment specimen fluids, as shown in figure 8, in integral support portion 61 Space is formed between outer support portion 62.

In further preferred embodiment, the space is triangular pyramid.

Wherein, the bottom edge in outer support portion is not to be overlapped with the left and right side of rectangle, and tool is at regular intervals, is illustrated, outside Support portion is the equal of the bracket installed in the left and right sides at bag bottom being formed, and is further fixedly supported the straight of specimen bag It is vertical.Meanwhile it being formed by space and also giving the certain aesthetic feeling of specimen bag.

A kind of preferred embodiment according to the present invention, as shown in figure 5, in use, the first plastic foil 1 and the second plastic foil 2 are softened, and the left and right sides of specimen bag forms isosceles triangle.

In further preferred embodiment, the isosceles triangle is by 12 groups of the first plastic foil 11 and the second plastic foil At.

Bag bottom and the bag body of specimen bag provided by the present invention are structure as a whole, and bag bottom and bag body are Nature Link, therefore, When in use, tearing phenomenon can never occur in bag bottom.And pass through width between the first plastic foil and the second plastic foil of bag body The banding line that degree is 0.5~2.5mm touches, which ensure that the close of the specimen bag left and right sides (i.e. at banding line) Feng Xing will not be torn when in use.Therefore, specimen bag provided by the present invention has the leakproofness of height and using strong Degree.

A kind of preferred embodiment according to the present invention, the bag bottom 3 are formed as follows: while forming opening 5, using folding Enter device and inwardly fold into bar shaped cylinder with 5 opposite sides of opening, folds into part and form bar shaped disjunctor bag bottom.

In further preferred embodiment, by earnestly and at fervent place extruding banding line 4, to form independence Bag bottom.

In embodiment still more preferably, the folding device is using baffle or the covering of the fan of rotation.

The second object of the present invention is to provide a kind of preparation process of above-mentioned specimen bag, which includes following step It is rapid:

Step 1, blown film are simultaneously cast: first material being poured into progress blown film and/or roll-in, formation in the first extruder and is had Seal tongue and sealed groove bar shaped cylinder；Pass through cutting means (such as blade) among sealing tongue and sealed groove for bar shaped Cylinder is cut apart with a knife or scissors to form opening 5；Using folding device (covering of the fan of such as baffle or rotation) by bar shaped cylinder and opening 5 opposite sides It inwardly folds into, folds into part and form bar shaped disjunctor bag bottom, be respectively formed the first plastic foil of bar shaped disjunctor in the two sides for folding into part With the second plastic foil of bar shaped disjunctor；Meanwhile second material being poured into the second extruder and is cast, form casting films.

A kind of preferred embodiment according to the present invention, the first material includes low density polyethylene (LDPE) (LDPE), linear Low density polyethylene (LDPE) (LLDPE), antioxidant, plasticizer.

In further preferred embodiment, the first material optionally further includes antistatic agent and impact modified Agent.

Wherein, the material of specimen bag is extremely important, directly affects the use quality of specimen bag, low-density used in the present invention Polyethylene and linear low density polyethylene are all made of imported material, to guarantee the use quality of specimen bag.

A kind of preferred embodiment according to the present invention, the second material include polypropylene, polyethylene, antioxidant, increasing Moulding agent further includes optionally antistatic agent and impact modifying agent.

Wherein, to the no particular/special requirement of the selection of second material, as long as acquisition can be cast.

A kind of preferred embodiment according to the present invention, in step 1, the cutting means are blade.

A kind of preferred embodiment according to the present invention, in step 1, the folding device are the fan of baffle or rotation Face.

In further preferred embodiment, the baffle with a thickness of 0.1~1mm.

Wherein, baffle should not be too thick, it should and it is thin as far as possible, but it is unable to cutting edge, otherwise cylinder can be scratched.

A kind of preferred embodiment according to the present invention, in step 1, casting films with a thickness of 0.01~1mm, preferably 0.1~0.5mm.

A kind of preferred embodiment according to the present invention, first extruder use special die orifice, the special die orifice The sealing tongue and sealed groove and the salient line of opening 53 of sealing strip 51 can be obtained with cylinder blown film together.

In further preferred embodiment, as shown in Fig. 7~Fig. 8, the special die orifice includes blown film seam 7, sealing Tongue seam 8, sealed groove seam 9 and protrusion seam 10.

Wherein, the blown film seam is for blowing out cylinder, i.e. bag body in final products, and the sealing tongue seam is for blowing out The sealing tongue of sealing strip, the sealed groove stitch the sealed groove for blowing out sealing strip, and the protrusion seam is convex for blowing out Initial line.

In embodiment still more preferably, the sealing tongue seam 8, sealed groove peak 9 and protrusion seam 10 with blow 7 connection of film seam flows into sealing tongue seam 8, sealed groove seam 9 and protrusion seam 10 in this way, stitching convenient for first material by blown film, with It is respectively formed sealing tongue, sealed groove and salient line.

First, sealing strip and bag body are integrally machined out, rather than the later period sticks by hot pressing, thus its stationarity compared with It is good, and saved the production time；Second, being raw material by using import and properly mixed LDPE and LLDPE, ensure that close The quality and its leakproofness of strip of paper used for sealing.

A kind of preferred embodiment according to the present invention, as shown in Figure 9, Figure 10, it is convex that the protrusion seam 10 is set to sealing Between the line of rabbet joint 8 and sealed groove seam 9.

In further preferred embodiment, the protrusion seam 10 is preferably 4~12, more excellent to be two or more It is selected as 6~10, such as 8.

Wherein, protrusion seam 10 how many a salient lines as needed be configured, protrusion seam number be the first plastic foil with The summation of salient line number on second plastic foil.

In embodiment still more preferably, the sealing tongue seam 8 and sealed groove seam 9 are respectively 1 or more It is a, and be arranged in pairs.

Wherein, the sealing tongue seam 8 and 9 basis of sealed groove seam are respectively necessary for how many sealing tongues and sealed groove It is configured.For example, if desired two groups of sealing strips, then need two sealing tongues and two sealed grooves.

Step 2, hot pressing form outside sandwich: the bar shaped cylinder after folding into being carried out cooling, crosses roller, then in draw Under, the casting films formed through curtain coating are pressed on the second plastic foil of bar shaped disjunctor, to casting films close to bar shaped disjunctor bag bottom Side carries out hot pressing, forms bar shaped disjunctor outside sandwich.

A kind of preferred embodiment according to the present invention, in step 2, the width of casting films are the second plastics of bar shaped disjunctor The 1/3~2/3 of film width.

Wherein, the width setting of casting films is not strict with, if obtained outside sandwich can be put into article, such as Case list, and article should not be fallen.

A kind of preferred embodiment according to the present invention, in step 2, in hot pressing, gently a pressure energy enough makes casting films viscous On the second plastic foil of bar shaped disjunctor, at this point, the hot pressing that cannot exert oneself, because firmly hot pressing may result in bar shaped disjunctor Adhesion between the second plastic foil of one plastic foil and bar shaped disjunctor.

It wherein, is with one since the purpose of outside sandwich is for inserting article, such as case list or other lists Determine the article of volume, will not be drilled out from gap as the liquid such as specimen fluids, therefore casting films and the second plastics of bar shaped disjunctor It is gently connected between film, does not need to touch.

Step 3, earnestly: bar shaped disjunctor specimen bag is carried out earnestly, and extrudes banding line 4 at fervent place, obtains specimen bag.

A kind of preferred embodiment according to the present invention carries out fervent along the direction vertical with part is folded into.

Wherein, by fervent, bar shaped disjunctor specimen bag is cut into specimen bag of the present invention.Also, according to specimen bag Transverse width carries out fervent.

In further preferred embodiment, obtained banding line 4 is perpendicular to bag bottom 3.

In mode still more preferably, the width of the banding line 4 is 0.5~2.5mm, preferably 1~2mm, more Preferably 1.5mm.

Wherein, it is earnestly rear to extrude wider banding line 4 by two purposes: first, the setting of wider banding line improves mark This bag overall beautiful；Second, wider banding line can guarantee specimen bag in the leakproofness of fervent part, when in use, i.e., Make to crack under heavier liquid effects.

A kind of preferred embodiment according to the present invention can carry out print steps between step 2 and step 3: in bar shaped On disjunctor plastic foil, printed label on preferably the first plastic foil.

In further preferred embodiment, on the first plastic foil, one layer of white background is first printed, is then printed on white background The label of brush black forms the label that can be write, obtains bar shaped disjunctor specimen bag.

Wherein, in order to be easily recognized the word write on the label that can be write, using white gravoply, with black engraved characters.

A kind of preferred embodiment according to the present invention can carry out punch out step between step 2 and 3: will seal tongue It closes and detains with sealed groove, punched above sealing strip 51, form lifting hole(eyelet) 52.

Although preparation process provided by the present invention includes three steps, in production application, above three step The as continuous productive process since step 1, specifically, step 1 end are directly entered step 2, subsequently into step 3.Entire preparation Process is disposable continuous productive process, and centre does not stop, and therefore, the preparation process saves the time, saves cost, is very suitable to Large-scale production and application.Meanwhile regular bag body does not generate waste material when fervent, further reduced cost of material.

In the present invention:

The bar shaped disjunctor bag bottom is formed by connecting by multiple bags of bottoms 3, wherein the bar shaped disjunctor bag bottom is shape after earnestly At multiple individual bag bottoms 3；

First plastic foil of bar shaped is formed by connecting by multiple first plastic foils 1, wherein first plastic foil of bar shaped exists Multiple individual first plastic foils 1 are formed after earnestly；

Second plastic foil of bar shaped is formed by connecting by multiple second plastic foils 2, wherein second plastic foil of bar shaped exists Multiple individual second plastic foils 2 are formed after earnestly；

First extruder is used in combination with inflation film manufacturing machine, for realizing blown film；

Second extruder is used in combination with casting machine, for realizing curtain coating.

Specimen bag and its preparation process are provided according to the present invention, had the advantage that

(1) specimen bag design provided by the present invention is succinct, beautiful；

(2) specimen bag provided by the present invention is provided with outside sandwich, for inserting article, such as case list, facilitates doctor The use of shield personnel, or the medical history of patient can be understood when doing pathological analysis in time, it is provided convenience for medical staff；

(3) specimen bag provided by the present invention has extraordinary leakproofness and use intensity, and when use should not tear It splits, leak；

(4) specimen bag provided by the present invention can be placed uprightly when in use；

(5) two sides are respectively formed integral support portion and outer support portion to specimen bag provided by the present invention when in use, further It ensure that stability of the specimen bag in upright use；

(6) preparation process provided by the present invention is that assembly line is completed, and centre is not paused, in this way, mark is greatly saved This bag of preparation time, while human and material resources have been saved, production cost is reduced, large-scale production and application are suitble to.

In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside", "left", "right" and " rear " The orientation or positional relationship of equal instructions is to be merely for convenience of describing based on the orientation or positional relationship under working condition of the present invention The present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific Orientation construction and operation, therefore be not considered as limiting the invention.

Combining preferred embodiment above, the present invention is described, but these embodiments are only exemplary , only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the present invention, these each fall within this In the protection scope of invention.

Claims

1. a kind of preparation process of specimen bag, which is characterized in that the specimen bag includes bag body and bag bottom (3), and bag body includes a left side The first plastic foil (1) and the second plastic foil (2) of right two sides contiguity, two sides contiguity part constitute banding line (4), in which:

The outside sandwich (21) for inserting article is provided on the second plastic foil (2)；

The lateral length of the outside sandwich (21) is equal to the lateral length of specimen bag, and longitudinal height of the outside sandwich (21) is mark The 1/3~2/3 of this bag of longitudinal height；

The bottom side of outside sandwich (21) connects with the bottom side of the second plastic foil (2), the left and right sides of outside sandwich (21) and the second plastics Film connects at left and right sides of (2)；

The bag bottom (3) and the first plastic foil (1) and the second plastic foil (2) are integrally formed；

Bag bottom (3) from bottom to top fold into bag in, fold into part between the first plastic foil (1) and the second plastic foil (2) and with Bag body is affixed, and folds into the left and right sides of part and the left and right two of the first plastic foil (1), the second plastic foil (2) and outside sandwich (21) Touched by banding line (4) side；

Bag body top includes opening (5), is provided at opening (5) sealing strip (51), the sealing strip (51) is by cooperating Sealing tongue and sealed groove composition, seal tongue and sealed groove and be respectively arranged at the first plastic foil (1) and the second plastics On the inner wall of film (2), compression push-and-pull switch is provided on sealing strip (51)；

Lifting hole(eyelet) (52) are offered above sealing strip (51) at opening (5)；

Salient line (53) are provided with above sealing strip (51) at opening (5)；

The label (11) that can be write is printed on the first plastic foil (1)；

When putting into specimen fluids, bag body is strutted, and bag bottom (3) support downwards from the highest point for folding into the part left and right sides, wherein bag bottom Fold into part middle part be pressurized sink open is formed rectangle (31), fold into part the left and right sides highest point respectively with rectangle (31) The right and left Nature Link, formed integral support portion (61), remaining bag bottom not supported fold into part is still affixed with bag body, formed Outer support portion (62), wherein

The length of the rectangle (31) is less than the length of sealing strip (51)；

Space (63) are formed between integral support portion (61) and outer support portion (62)；

The outer support portion (62) is double-layer structure, including outer support portion internal layer and outer support portion outer layer, in the outer support portion Layer and outer support portion outer layer are affixed；

The preparation process the following steps are included:

Step 1, blown film are simultaneously cast: first material being poured into and carries out blown film and/or roll-in in the first extruder, is formed with sealing The bar shaped cylinder of tongue and sealed groove cuts apart with a knife or scissors bar shaped cylinder by blade among sealing tongue and sealed groove to be formed out Mouth (5)；The bar shaped cylinder side opposite with opening (5) is inwardly folded into using baffle or the covering of the fan of rotation, part is folded into and is formed Bar shaped disjunctor bag bottom is respectively formed the second plastic foil of the first plastic foil of bar shaped disjunctor and bar shaped disjunctor in the two sides for folding into part； Meanwhile second material being poured into the second extruder and is cast, form casting films；

First extruder uses special die orifice, and the special die orifice includes:

Blown film stitches (7), for blowing out cylinder；

Tongue seam (8) is sealed, for blowing out the sealing tongue of sealing strip (51)；

Sealed groove stitches (9), for blowing out the sealed groove of sealing strip (51)；

The sealing tongue seam (8) and sealed groove seam (9) are connected to blown film seam (7)；

Protrusion seam (10), for blowing out salient line (53), the protrusion seam (10) is two or more；

Step 2, hot pressing form outside sandwich: the bar shaped cylinder after folding into is subjected to cooling, crosses roller, then under draw, The casting films formed through curtain coating are pressed on the second plastic foil of bar shaped disjunctor, to casting films close to the side at bar shaped disjunctor bag bottom Hot pressing is carried out, bar shaped disjunctor outside sandwich is formed；

Step 3, earnestly: bar shaped disjunctor specimen bag is carried out earnestly, and extrudes banding line (4) at fervent place, obtains specimen bag.

2. preparation process according to claim 1, which is characterized in that

The width of the banding line (4) is 0.5~2.5mm.

3. preparation process according to claim 1, wherein in step 1,

The first material includes low density polyethylene (LDPE), linear low density polyethylene, antioxidant, plasticizer, further includes antistatic Agent and impact modifying agent；

The second material includes polypropylene, polyethylene, antioxidant, plasticizer, further includes antistatic agent and impact modifying agent.

4. preparation process according to claim 1, wherein

Print steps are carried out between step 2 and 3: the printed label on the first plastic foil first prints one layer of white background, then white The label of process black on bottom forms the label that can be write；

Punch out step is carried out between step 2 and 3: sealing tongue and sealed groove being closed into button, punched above sealing strip (51), It is formed lifting hole(eyelet) (52)；

In step 3, it is carried out earnestly along the direction vertical with part is folded into, obtained banding line (4) is perpendicular to bag bottom (3).