CN211224570U

CN211224570U - Powdery material packaging bag

Info

Publication number: CN211224570U
Application number: CN201922210557.9U
Authority: CN
Inventors: 张建航
Original assignee: Lanxi Zhongyi Machinery Co ltd
Current assignee: Lanxi Zhongyi Machinery Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-11
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to a powdery material wrapping bag, comprises a bag bod, the bag body is weaving cloth, it has good gas permeability to weave cloth, the bag body wherein one side is equipped with sealing layer and ventilation part, the front or the reverse side of ventilation part are pasted and are prevented overflowing the ash layer and the wrapping bag shaping back and prevent that the ash layer is located the wrapping bag inboardly, so both can make sack outside integrality and convenient printing, and can separate the powdery material and keep off in the wrapping bag, if be located the sack outside, and the dust can get into and weave cloth and prevent overflowing between the ash layer, prop brokenly easily and prevent overflowing the ash layer, the width on prevent overflowing the ash layer is greater than ventilation part, prevent overflowing the ash layer and be equipped with the bonding part all around, the bonding part is pasted with the hot melt adhesive and is even, prevent overflowing the ash layer and select the. The utility model discloses the advantage: the air permeability is good, the working ring is clean, environment-friendly and sanitary, and the specific performance price ratio is very high.

Description

Powdery material packaging bag

Technical Field

The utility model relates to a processing field of sack, concretely relates to powdery material wrapping bag.

Background

The packaging bag is widely applied in various industries, when the packaging bag is used for packaging dry powder products, the packaging bag needs good tightness and avoids dust from flying outwards due to small particles of the powder materials, the packaging bag used for the powder materials at present is made of woven cloth or paper materials, and the like, the packaging bag needs to be coated with a film to generate a sealing effect if the woven cloth is used, but in actual use, the powder materials and air are filled into the packaging bag together during filling, the coated woven cloth cannot discharge the air, so that a plurality of small holes need to be formed on the coated woven cloth for exhaust treatment, the small holes cannot avoid dust from flying outwards, the other paper packaging bag is generally made of three layers of paper, the packaging bag can avoid dust from flying outwards and has air permeability, but the production cost is high and is about twice of the woven cloth, and the paper packaging bag has poor bearing capacity and cannot package a big bag, is not suitable for packaging and using the powdery materials in batch production.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at various defects and shortcomings of the prior art, the powder material packaging bag is breathable and environment-friendly.

The utility model discloses a concrete technical scheme is: the utility model provides a powdery material wrapping bag, which comprises a bag bod, the bag body is woven cloth, it has good gas permeability to weave cloth, the bag body wherein one side part or whole carry out the tectorial membrane and form the sealing layer, the bag body still is equipped with ventilative portion, positive or reverse side of ventilative portion is equipped with prevents that to emit grey layer and wrapping bag shaping back prevents emitting grey layer and is located the wrapping bag inboardly, so both can make sack outside integrality and convenient printing, and can separate the powdery material and keep off in the wrapping bag, if be located the sack outside, and the dust can get into the bag body and prevent emitting between the grey layer, prop brokenly easily and prevent emitting grey layer, the width on prevent emitting grey layer is greater than ventilative portion, prevent emitting grey layer's both sides with glue, bonding material such as.

Furthermore, the ash-proof layer is made of paper materials or non-woven fabrics and other materials with good air permeability, and the density of the ash-proof layer can avoid dust from flying outwards.

Furthermore, the bag body is partially coated with a film, the film part is a sealing layer, the position without the film is a ventilating part, or the bag body is completely coated with a film to form the sealing layer, and a plurality of uniformly distributed pinholes are punched on the sealing layer to form the ventilating part.

When the bag is processed, the bag body is continuously output in a roll shape through a machine, required processes such as deviation correction, tensioning, corona, printing and the like are carried out, film covering is carried out if the bag is partially covered, a paper pasting mechanism is used for pasting an anti-ash-overflowing layer of paper or non-woven fabric on the front surface or the back surface of a breathable part of the bag body after the film covering is finished, if the bag is completely covered, a perforating machine is firstly used for perforating, then the anti-ash-overflowing layer is pasted and connected, the bag body is folded into a straight tube shape by a forming mechanism after the pasting is finished, the anti-ash-overflowing layer is folded into the inner side of the packaging bag, then the straight tube shape is formed by bonding and edge sealing, then the straight tube shape is cut into required length by a cutting mechanism, and the cut straight tube shape.

If the bag body of partial tectorial membrane pastes the front of even ventilation portion with the ash proof layer, then high temperature and the adhesion nature when accessible sealing layer tectorial membrane will prevent that the bonding portion both sides limit of ash proof layer and sealing layer direct adhesion, prevent that the ash proof layer pastes even ventilation portion reverse side or use whole tectorial membrane to punch the bag body that forms ventilation portion again and carry out the bonding with the ash proof layer, then the bonding of the ash proof layer is adhered with the bag body by bonding material such as glue, hot melt adhesive, the bonding of ash proof layer and bag body bonding in ventilation portion also can be at the vertical and horizontal several bonding portions that add between ash proof layer and ventilation portion bond, increase the bonding fastness like this.

After the sack shaping, it is inboard that the ash layer of preventing emerging is located the sack, and its sealing layer of braided bag of current universal use is located the sack outside, and this wrapping bag is preferred, and the sealing layer is located the sack inboard, and the processing step can be simplified when the ash layer of preventing emerging adds man-hour with the sealing layer like this, and the sealing layer can promote the fastness and the leakproofness of sealing layer with being located the sack inboard simultaneously, compares in the sealing layer in the sack outside, can reduce tectorial membrane thickness, saves manufacturing cost.

When the packaging bag is filled, the filling machine fills the powdery material into the packaging bag through the valve port, the powdery material and air are separated in the bag body by the sealing layer covered by the packaging bag, the powdery material is separated in the bag body by the combination part of the air-permeable part and the anti-ash layer, and redundant air is discharged out of the bag body.

The anti-ash-overflowing layer made of the selected paper material only needs the thickness of one paper packaging bag, so that the application of the anti-ash-overflowing layer can be met, the air permeability is more ideal than that of three paper packaging bags, and meanwhile, dust can be prevented from flying outwards.

The utility model discloses owing to adopted above technical scheme, had following advantage: because the tectorial membrane process has been cancelled with the position that prevents the ash layer combination to the part tectorial membrane bag body, its size is the fraction of sack simultaneously, used prevent that the ash layer has gas permeability paper or non-woven fabrics, its cost is lower, overall cost is close with ordinary tectorial membrane braided bag, so this wrapping bag is compared in the good and environmental protection of ordinary tectorial membrane braided bag gas permeability, sealing performance and humidity resistance are more superior than ordinary tectorial membrane braided bag, compare in the paper wrapping bag more firmly practical, the cost is lower.

Drawings

FIG. 1: do the utility model discloses the structure sketch map of the local tectorial membrane of bag body expansion.

FIG. 2: do the utility model discloses the bag body expandes the whole tectorial membrane and the structural schematic diagram who punches.

FIG. 3: do the utility model discloses the bag body expandes the tectorial membrane and adds the local structure sketch map that cuts open of anti-counterfeiting ash layer.

FIG. 4: do the utility model discloses a cross-sectional structure schematic diagram of sack shaping effect.

FIG. 5: do the utility model discloses two sectional structure schematic diagrams of sack shaping effect.

FIG. 6: for the utility model discloses prevent that the ash layer has the structure sketch map of many bonding portions.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings.

Example 1

The utility model provides a powdery material wrapping bag, which comprises a bag bod 1, bag body 1 is woven the cloth, the woven cloth of not tectorial membrane has good gas permeability, bag body 1 wherein one side part carries out the tectorial membrane and forms sealing layer 2, bag body 1 still is equipped with ventilation portion 3, ventilation portion 3's front or reverse side are pasted and are prevented emerging grey layer 4 and wrapping bag shaping back and prevent emerging grey layer 4 and be located the wrapping bag inboardly, so both can make sack outside integrality and convenient printing, and can separate the powdery material and keep off in the woven bag, if be located the sack outside, then the dust can get into woven cloth and prevent emerging between the grey layer 4, prop easily and break and prevent emerging grey layer 4, the width of preventing emerging grey layer 4 is greater than ventilation portion 3, glue is used on the both sides of preventing emerging grey layer 4, bonding materials such as hot melt adhesive bond formation 41.

The ash-proof layer 4 is made of paper material or non-woven fabric with good air permeability, and the density of the ash-proof layer can avoid dust from flying outwards.

The bag body is partially coated with a sealing layer 2, and the non-coated position is a ventilation part 3.

When the bag is processed, the bag body 1 is in a roll shape and continuously output through a machine, film covering is carried out after required processes such as deviation correction, tensioning, corona and printing are carried out, after local film covering is finished, the paper or non-woven anti-ash layer 4 is attached to the front surface or the back surface of the air permeable part 3 of the bag body 1 through a paper attaching mechanism, after the attachment is finished, the bag body 1 is folded into a straight tube shape by a forming mechanism after the anti-ash layer 4 is folded into the inner side of the packaging bag, then the straight tube shape is bonded and sealed to form a straight tube shape, the straight tube shape is cut into required length through a cutting mechanism, and the cut straight tube shape bag is subjected to processes such as valve port manufacturing, upper and lower.

If the anti-ash-layer 4 is adhered to the front face of the air-permeable part 3, two side edges of the adhesion part 41 of the anti-ash-layer 4 can be directly adhered to the sealing layer 2 through high temperature and adhesiveness when the sealing layer 2 is coated with a film, the anti-ash-layer 4 is adhered to the back face of the air-permeable part 3, the adhesion part 41 of the anti-ash-layer 4 is adhered to the bag body 1 through adhesive materials such as glue, hot melt glue and the like, the adhesion of the anti-ash-layer 4 and the bag body 1 to the air-permeable part 3 can also be performed through the additional adhesion parts 41 between the anti-ash-layer 4 and the air-permeable part 3 in the longitudinal direction and the transverse direction, and thus, the.

After the sack shaping, it is inboard that prevent grey layer 4 is located the sack, and its sealing layer 2 of braided bag of current generally used is located the sack outside, and this wrapping bag is preferred, and sealing layer 2 is located the sack inboard, prevents grey layer 4 and sealing layer 2 man-hour simultaneously like this, can simplify the processing step, and sealing layer 2 can promote sealing layer 2's fastness and leakproofness with being located the sack inboard simultaneously, compares in sealing layer 2 in the sack outside, can reduce tectorial membrane thickness, saves manufacturing cost.

When the packaging bag is filled, the filling machine fills the powdery material into the packaging bag through the valve port, the sealing layer 2 covered by the packaging bag separates the powdery material and air in the bag body, and the joint part of the air-permeable part 3 and the anti-ash layer 4 separates the powdery material in the bag body and simultaneously discharges redundant air out of the bag body.

The anti-ash-overflowing layer 4 made of the selected paper material only needs the thickness of one paper packaging bag, so that the application of the anti-ash-overflowing layer 4 can be met, the air permeability is more ideal than that of a three-layer paper packaging bag, and meanwhile, dust can be prevented from flying outwards.

Example 2

The utility model provides a powdery material wrapping bag, which comprises a bag bod 1, bag body 1 is woven the cloth, the woven cloth of not tectorial membrane has good gas permeability, bag body 1 wherein one side is whole to carry out the tectorial membrane and forms sealing layer 2, bag body 1 still is equipped with ventilation portion 3, ventilation portion 3's front or reverse side are pasted and are prevented emerging grey layer 4 and wrapping bag shaping back and prevent emerging grey layer 4 and be located the wrapping bag inboardly, so both can make sack outside integrality and convenient printing, and can separate the powdery material and keep off in the woven bag, if be located the sack outside, then the dust can get into woven cloth and prevent emerging between the grey layer 4, prop brokenly easily and prevent emerging grey layer 4, the width of preventing emerging grey layer 4 is greater than ventilation portion 3, glue is used on the both sides of preventing emerging grey layer 4, bonding materials such as hot melt adhesive.

The bag body 1 is entirely covered with a film to form a sealing layer 2, and a plurality of pinholes are uniformly distributed on the sealing layer 2 to form a ventilation part 3.

When the bag is processed, the bag body 1 is in a roll shape and continuously output through a machine, film laminating is carried out after required processes such as deviation correction, tensioning, corona and printing are carried out, after the film laminating is finished, punching is carried out after the film laminating is finished, the paper or non-woven anti-ash layer 4 is attached to the front side or the back side of the air permeable part 3 of the bag body 1 through a paper attaching mechanism, the bag body 1 is folded into a straight tube shape by a forming mechanism after the attaching is finished, the anti-ash layer 4 is folded into the inner side of a packaging bag, then the straight tube shape is formed through bonding and edge sealing, the cutting mechanism cuts the straight tube shape into required length, and the cut straight tube shape bag is subjected to processes such as valve port manufacturing, upper and lower.

The anti-ash-overflowing layer 4 is attached to the front or the back of the air-permeable part 3, the bonding part 41 of the anti-ash-overflowing layer 4 is bonded with the bag body 1 by bonding materials such as glue, hot melt glue and the like, and the bonding of the anti-ash-overflowing layer 4 and the bag body 1 on the air-permeable part 3 can also be realized by additionally arranging a plurality of bonding parts 41 in the longitudinal direction and the transverse direction between the anti-ash-overflowing layer 4 and the air-permeable part 3, so that the bonding fastness is improved.

After the sack shaping, it is inboard that prevent grey layer 4 is located the sack, and its sealing layer of braided bag of present generally used is located the sack outside, and this wrapping bag is preferred, and sealing layer 2 is located the sack inboard, and it adds man-hour simultaneously with sealing layer 2 to prevent grey layer 4 like this, can simplify the processing step, and sealing layer 2 can promote sealing layer 2's fastness and leakproofness with being located the sack inboard simultaneously, compares in sealing layer 2 in the sack outside, can reduce tectorial membrane thickness, saves manufacturing cost.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a powdery material wrapping bag, includes the bag body (1), its characterized in that: the bag body (1) be woven cloth, bag body (1) wherein one side part or whole carry out the tectorial membrane and form sealing layer (2), bag body (1) still be equipped with ventilative portion (3), the front or the reverse side of ventilative portion (3) be equipped with prevent grey layer (4) and wrapping bag shaping back prevent grey layer (4) and be located the wrapping bag inboardly, the width of preventing grey layer (4) be greater than ventilative portion (3), the both sides of preventing grey layer (4) pass through sealing layer (2) high temperature bonding or bond formation bonding portion (41) with glue or hot melt adhesive.

2. The powdery material packing bag according to claim 1, wherein: the ash-proof layer (4) is made of paper materials or non-woven fabrics.

3. The powdery material packing bag according to claim 1, wherein: the bag body (1) is partially coated with a film, the film part is a sealing layer (2), the position without the film is a ventilating part (3), or the bag body (1) is completely coated with a film to form the sealing layer (2), and a plurality of uniformly distributed pinholes are punched on the sealing layer (2) to form the ventilating part (3).