CN111377125A - Storage bag - Google Patents

Storage bag Download PDF

Info

Publication number
CN111377125A
CN111377125A CN201811641926.3A CN201811641926A CN111377125A CN 111377125 A CN111377125 A CN 111377125A CN 201811641926 A CN201811641926 A CN 201811641926A CN 111377125 A CN111377125 A CN 111377125A
Authority
CN
China
Prior art keywords
film layer
inner film
heat
bag body
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811641926.3A
Other languages
Chinese (zh)
Inventor
谢德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Air Bags Packaging Material Co ltd
Original Assignee
Zhuhai Air Bags Packaging Material Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhuhai Air Bags Packaging Material Co ltd filed Critical Zhuhai Air Bags Packaging Material Co ltd
Priority to CN201811641926.3A priority Critical patent/CN111377125A/en
Publication of CN111377125A publication Critical patent/CN111377125A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

The invention provides a storage bag with a simple structure and a good sealing effect, which comprises a bag body, wherein the bag body comprises a first outer film layer and a second outer film layer, a one-way air valve film is arranged on the bag body and comprises a first inner film layer and a second inner film layer, a heat-resistant block is arranged between the first inner film layer and the second inner film layer and is a T-shaped heat-resistant block, a plurality of longitudinal heat sealing lines are arranged at intervals at the tail ends of the first inner film layer and the second inner film layer, and an exhaust cavity is formed between two adjacent longitudinal heat sealing lines; an annular heat sealing line is arranged at the top end of the longitudinal heat sealing line and is intersected with the two adjacent T-shaped heat-resisting blocks; the first outer film layer sequentially comprises a first PE resin layer, a first EVA resin layer, a PA resin layer, a second EVA resin layer and a second PE resin layer. After the air in the bag body is discharged from the one-way air valve film, the first inner film layer and the second inner film layer are automatically bonded, the sealing effect is good, and the manufacturing cost of the storage bag is low.

Description

Storage bag
Technical Field
The invention relates to the field of article packaging, in particular to a storage bag with a self-sealing function.
Background
The storage bag is a common article in life, is often used for storing soft articles such as clothes, bedding and the like, and in the storage bag, a vacuum storage bag is particularly favored by consumers, isolates the stored articles from the outside air, plays the roles of moisture protection and mildew prevention while preventing dust, and can reduce the storage space and facilitate carrying and storage.
At present the popular vacuum storage bag in the market, the three side of bag will be accomodate is sealed, leave an opening, but set up open closed sealing strip at the opening part, air in will accomodating the bag through vacuum pump or air extract section of thick bamboo is taken out, this kind of bag is accomodate and need set up the aspirating hole on the surface of the bag body, and set up the seal valve on the aspirating hole, prevent to bleed back air and follow the aspirating hole and get into storage bag in, nevertheless can discover behind a period originally sealed bag and be full of the air again in the bag, all be the sealed not tight air exhaust hole that leads to of aspirating hole under most of the circumstances. The sealing valve of the vacuum storage bag has a complex structure, and the sealing valve has a poor sealing effect due to the high manufacturing cost of the way of arranging the air suction hole on the surface of the bag body.
Disclosure of Invention
The invention aims to provide a storage bag which is simple in structure and good in sealing effect.
In order to achieve the purpose, the storage bag comprises a bag body, wherein the bag body comprises a first outer film layer and a second outer film layer, at least one heat sealing line is arranged between the first outer film layer and the second outer film layer, an opening is formed in the bag body, a sealing strip capable of being opened and closed is arranged at the edge of the opening, and a one-way air valve film is further arranged on the bag body. The one-way air valve film comprises a first inner film layer and a second inner film layer which are self-adhesive, and the first inner film layer and the second inner film layer are arranged between a first outer film layer and a second outer film layer; a heat-resistant block is arranged between the first inner film layer and the second inner film layer, and a heat-resistant material is coated on the heat-resistant block; the heat-sealing line passes through the first inner film layer, the second inner film layer and the heat-resistant block; the heat-resistant blocks are T-shaped heat-resistant blocks, the T-shaped heat-resistant blocks are arranged between the first inner film layer and the second inner film layer at intervals, a plurality of longitudinal heat sealing lines are arranged at the tail ends of the first inner film layer and the second inner film layer at intervals, and an exhaust cavity is formed between every two adjacent longitudinal heat sealing lines; an annular heat sealing line is arranged at the top end of the longitudinal heat sealing line and is intersected with the two adjacent T-shaped heat-resisting blocks; first rete includes first PE resin layer, first EVA resin layer, PA resin layer, second EVA resin layer and second PE resin layer in proper order, and first rete is made through coextrusion molding.
It is obvious by above-mentioned technical scheme, the inside air of the bag body is from one-way air valve membrane discharge back, and first rete and the automatic bonding of second rete prevent that the external air from returning the internal portion of bag, and is sealed effectual, the simple structure of one-way air valve membrane, the low in manufacturing cost who accomodates the bag. The PA resin has good gas barrier property and good puncture strength, so that the film of the first outer film layer has low air permeability and good strength, and the PE layer arranged on the outer layer improves the heat sealability of the first outer film layer. The first EVA resin layer improves the bonding strength between the first PE resin layer and the PA resin layer, and the second EVA resin layer improves the bonding strength between the second PE resin layer and the PA resin layer.
The further proposal is that the bag body is rectangular, the opening is arranged at the top of the bag body, and the one-way air valve film is arranged at the bottom of the bag body.
It can be seen that the rectangular bag body is the most common shape of the storage bag, and can be prepared by a conventional machine, the opening and the single-phase air valve film are also simple, the process for preparing the storage bag is very common, and no additional equipment is required. The single-phase air valve film is arranged at the bottom of the bag body, so that the air in the bag body can be discharged.
The further proposal is that a plurality of curve-shaped heat sealing lines are arranged in the exhaust cavity, and the curve-shaped heat sealing lines are in a shape with a wide upper part and a narrow lower part.
One alternative scheme is that the bag body is rectangular, the opening is formed in the top of the bag body, and the one-way air valve film is arranged on the side edge of the bag body.
Therefore, the one-way air valve film can be arranged on the side of the bag body.
Drawings
Fig. 1 is a schematic plan view of a first embodiment of the storage bag of the present invention.
Fig. 2 is an exploded view of a first embodiment of the storage bag of the present invention.
Fig. 3 is a schematic cross-sectional view of the first outer film layer of the first storage bag of the present invention.
Fig. 4 is a schematic plan view of a second storage bag according to the present invention.
Fig. 5 is a schematic plan view of a third embodiment of the storage bag of the present invention.
Fig. 6 is a schematic plan view of a fourth embodiment of the storage bag of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Example one
Referring to fig. 1 and 2, the storage bag of the present embodiment includes a bag body 100, the bag body 100 includes a first outer film layer 101 and a second outer film layer 102, a one-way air valve film 106 is disposed between the first outer film layer 101 and the second outer film layer 102, the one-way air valve film 106 includes a first inner film layer 103 and a second inner film layer 104 having self-adhesion, a long-strip-shaped heat-resistant block 105 is disposed between the first inner film layer 103 and the second inner film layer 104, and a heat-resistant material is coated on the heat-resistant block 105. In this embodiment, the first and second outer film layers 101 and 102 are the same size, and the first and second inner film layers 102 and 103 are the same size.
The bag 100 is rectangular, an opening 110 is provided at the top of the bag 100, and an openable and closable seal 111 is provided near the edge of the opening 110, and in this embodiment, the seal 111 is a male-female mating seal. A one-way valve film 106 is disposed at the bottom of the bag body 100. Two longitudinal heat sealing lines 112 and 113 are arranged on the side face of the bag body 100, a transverse heat sealing line 114 is arranged on the one-way air valve film 106, and the transverse heat sealing line 114 passes through the first inner film layer 103, the second inner film layer 104 and the heat-resisting block 105. The longitudinal heat seal lines 112, 113 weld the first and second outer film layers 101, 102 together, and the transverse heat seal line 114 welds the first and second outer film layers 102, 103 and 104 together. The first outer film layer 101, the second outer film layer 102, the longitudinal heat- seal lines 112, 113, and the transverse heat-seal line 114 enclose an interior receptacle cavity 107 of the bag body 100.
A plurality of longitudinal heat sealing lines 115 are arranged at intervals at the tail ends of the first inner film layer 103 and the second inner film layer 104, and an exhaust cavity 116 is formed between two adjacent longitudinal heat sealing lines 115. A plurality of curve-shaped heat sealing lines 117 are arranged in the exhaust cavity 116, the curve-shaped heat sealing lines 117 are wide at the upper part and narrow at the lower part, and the curve-shaped heat sealing lines 117 weld the first outer membrane layer 101, the second outer membrane layer 102, the first inner membrane layer 103 and the second inner membrane layer 104 together to form a curve-shaped air flow passage, so that air in the exhaust cavity 116 can be conveniently exhausted along the curve-shaped air flow passage.
An annular heat seal line 118 is provided at the tip of the longitudinal heat seal line 115, and the heat-resistant block 105 passes through the annular heat seal line 115. The annular heat seal line 115 welds the first outer film layer 101, the second outer film layer 102, the first inner film layer 103, and the second inner film layer 104 in place to prevent random movement of the heat resistant block 104. The transverse heat-seal lines 114 cannot weld the first and second inner film layers 103 and 104 provided with the heat-resistant blocks 105 together due to the heat-resistant property of the heat-resistant blocks 105, and therefore the gaps between the adjacent two annular heat-seal lines 118 form the vents 119.
The working principle of the storage bag of the embodiment is as follows: after clothes are put into the internal containing cavity 107 from the opening 110, the opening 110 is sealed by the sealing strip 111, the internal containing cavity 107 of the bag body 100 is pressed by force, so that the air in the bag body 100 is exhausted into the exhaust cavity 116 from the exhaust port 119, and the air exhausted into the exhaust cavity 116 is exhausted from the lower edge of the bag body 100 along the exhaust channel. Because the autohension of first rete 103 and second rete 104, the air in the bag body 100 back of discharging, first rete 103 and the automatic bonding of second rete 104, during the unable inside chamber 107 that holds that returns from bag body 100 bottom of external air, consequently can guarantee that the inside air content of bag body 100 is very low, is favorable to the storage of clothing.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a first outer film layer of a first storage bag according to an embodiment of the present invention. The first outer film layer 101 sequentially comprises a first PE resin layer 101a, a first EVA resin layer 101b, a PA resin layer 101c, a second EVA resin layer 101d and a second PE resin layer 101e, the five resin layers of the first outer film layer 101 are symmetrically arranged, the PA resin layer 101c is an intermediate layer, the first PE resin layer 101a and the second PE resin layer 101e are outer layers, and the first EVA resin layer 101b and the second EVA resin layer 101d are inner layers.
The structure of the second outer film layer 102 is the same as that of the first outer film layer 101.
The preparation method of the first outer film layer 101 comprises the following steps: the raw materials of the first PE resin layer 101a, the first EVA resin layer 101b, the PA resin layer 101c, the second EVA resin layer 101d and the second PE resin layer 101e are respectively extruded by five extruders, and the five layers of composite films are formed in one step by superposition and coextrusion through the same die. The PA resin not only has good gas barrier property, but also has good puncture strength, so that the films of the first outer film layer 101 and the second outer film layer 102 have low air permeability and good strength, and the PE layer arranged on the outer layer improves the heat sealability of the first outer film layer 101 and the second outer film layer 102. The first EVA resin layer 101b improves the bonding strength between the first PE resin layer 101a and the PA resin layer 101c, and the second EVA resin layer 101d improves the bonding strength between the second PE resin layer 101e and the PA resin layer 101 c.
Example two
Referring to fig. 4, fig. 4 is a schematic plan view of the storage bag of the present embodiment. The structure of the pouch of this embodiment is substantially the same as that of the pouch of the first embodiment, except that the top end of the longitudinal heat-seal line 215 of this embodiment is not provided with a ring-shaped heat-seal line, but a plurality of through holes 208 are provided on the heat-resistant block 205, a heat-seal point 209 having the same shape as the through holes 208 is provided at each position of the through holes 208, and the heat-seal points 209 weld the first outer film layer, the first inner film layer, the second inner film layer and the second outer film layer (not shown) on the upper and lower surfaces of the through holes together to prevent the heat-resistant block 205 from moving freely. An exhaust port 219 is formed between the first and second inner film layers provided with the heat-resistant block 205.
EXAMPLE III
Referring to fig. 5, fig. 5 is a schematic plan view of a third embodiment of the storage bag of the present invention. The structure of the storage bag of this embodiment is substantially the same as that of the storage bag of the first embodiment, except that the heat-resistant block of this embodiment is a T-shaped heat-resistant block 305, a plurality of T-shaped heat-resistant blocks 305 are arranged between the first inner film layer and the second inner film layer at intervals (not shown in the figure), a plurality of longitudinal heat-seal lines 315 are arranged at intervals at the tail ends of the first inner film layer and the second inner film layer, and an exhaust cavity 316 is formed between two adjacent longitudinal heat-seal lines 315. A plurality of curve-shaped heat sealing lines 317 are arranged in the exhaust cavity 316, the curve-shaped heat sealing lines 317 are wide in upper portion and narrow in lower portion, the first outer film layer, the second outer film layer, the first inner film layer and the second inner film layer are welded together through the curve-shaped heat sealing lines 317 to form a curve-shaped air flow channel, and air in the exhaust cavity 316 can be conveniently exhausted along the curve-shaped air flow channel. An annular heat sealing line 318 is arranged at the top end of the longitudinal heat sealing line 315, the annular heat sealing line 318 intersects with two adjacent T-shaped heat-resisting blocks 315, and the annular heat sealing line 318 prevents the T-shaped heat-resisting blocks 315 from moving freely.
Example four
Referring to fig. 6, fig. 6 is a schematic plan view of a fourth embodiment of the storage bag of the present invention. The structure of the pouch of this embodiment is substantially the same as that of the pouch of the fourth embodiment, except that the top end of the longitudinal heat-seal line 415 of this embodiment is not provided with a ring-shaped heat-seal line, but a through hole 408 is provided at the upper end of the T-shaped heat-resistant block 405, a heat-seal point 409 having the same shape as the through hole 408 is provided at each position of the through hole 408, and the heat-seal point 409 welds the first outer film layer, the first inner film layer, the second inner film layer and the second outer film layer (not shown) on the upper and lower surfaces of the through hole together to prevent the heat-resistant block 405 from moving freely. An exhaust port 419 is formed between the first and second inner film layers where the heat-resistant block 405 is disposed.
EXAMPLE five
The structure of the storage bag of the present embodiment is similar to that of the first to fourth embodiments, and the difference from the first to fourth embodiments is: the bag body is rectangular, the opening is arranged at the top of the bag body, and the one-way air valve film is arranged at the side edge of the bag body.
According to the storage bag, after the air in the bag body is exhausted, the first inner film layer and the second inner film layer are automatically bonded, so that the external air is prevented from returning, and the internal vacuum degree of the storage bag is effectively guaranteed.
Of course, the above embodiments are only preferred embodiments of the present invention, and many more variations are possible in practical applications, for example, the opening is disposed on the surface of the first outer film layer or the second outer film layer; or the one-way air valve film is arranged on the surface of the first outer film layer or the second outer film layer; and then or the first inner film layer is jointed with the first outer film layer, and the second inner film layer is jointed with the second outer film layer. The object of the invention is to provide a novel and effective method for the treatment of cancer, which can be carried out in a short time without any special treatment.

Claims (4)

1. Accomodate bag, including the bag body, the bag body includes first rete and second rete, first rete with set up a heat-seal line at least between the second rete, be equipped with the opening on the bag body, open-ended border department is equipped with open closed sealing strip, still be equipped with one-way air valve membrane, its characterized in that on the bag body:
the one-way air valve film comprises a first inner film layer and a second inner film layer with self-adhesiveness, and the first inner film layer and the second inner film layer are arranged between the first outer film layer and the second outer film layer; a heat-resistant block is arranged between the first inner film layer and the second inner film layer, and a heat-resistant material is coated on the heat-resistant block; the heat-sealing line passes through the first inner film layer, the second inner film layer and the heat-resistant block;
the heat-resistant blocks are T-shaped heat-resistant blocks, the T-shaped heat-resistant blocks are arranged between the first inner film layer and the second inner film layer at intervals, a plurality of longitudinal heat sealing lines are arranged at intervals at the tail ends of the first inner film layer and the second inner film layer, and an exhaust cavity is formed between every two adjacent second longitudinal heat sealing lines;
an annular heat sealing line is arranged at the top end of the longitudinal heat sealing line, and the annular heat sealing line is intersected with the two adjacent T-shaped heat-resisting blocks;
first rete includes first PE resin layer, first EVA resin layer, PA resin layer, second EVA resin layer and second PE resin layer in proper order, first rete is made through coextrusion molding.
2. The pouch of claim 1, wherein:
the bag body is rectangle, the opening sets up the top of the bag body, one-way air valve membrane sets up the bottom of the bag body.
3. The pouch of claim 2, wherein:
a plurality of curve-shaped heat sealing lines are arranged in the exhaust cavity, and the curve-shaped heat sealing lines are in a shape with a wide upper part and a narrow lower part.
4. The pouch of claim 1, wherein:
the bag body is rectangle, the opening sets up the top of the bag body, one-way air valve membrane sets up the side of the bag body.
CN201811641926.3A 2018-12-29 2018-12-29 Storage bag Pending CN111377125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811641926.3A CN111377125A (en) 2018-12-29 2018-12-29 Storage bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811641926.3A CN111377125A (en) 2018-12-29 2018-12-29 Storage bag

Publications (1)

Publication Number Publication Date
CN111377125A true CN111377125A (en) 2020-07-07

Family

ID=71213106

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811641926.3A Pending CN111377125A (en) 2018-12-29 2018-12-29 Storage bag

Country Status (1)

Country Link
CN (1) CN111377125A (en)

Similar Documents

Publication Publication Date Title
US20070286534A1 (en) Polymeric package with resealable closure and valve, and methods
US7674039B2 (en) Reclosable vacuum storage bag having flat resealable means
KR101026614B1 (en) Air evacuable storage bag with multiple air exit holes
US20070154118A1 (en) Polymeric package with resealable closure and valve and methods relating thereto
US6403174B1 (en) Element for the formation of bags for packing food products and not under vacuum
JP2006111277A (en) Packaging bag with zipper tape
TWM271832U (en) Compression storage bag with air extracting outlet
KR101458084B1 (en) Packing bag for fermented foods
CN111377125A (en) Storage bag
CN111377127A (en) Storage bag
CN111377126A (en) Storage bag
JP6091156B2 (en) Medical container, method for manufacturing medical container, and seal mold used therefor
CN102695658B (en) A kind of for vacuum-packed packaging bag
CN204979603U (en) Composite braided bag
CN109071051A (en) The method for forming multi-compartment tobacco pouch
CN206142080U (en) Storage bag
CN206528155U (en) A kind of film and collecting bag
CN103029892A (en) Exhaust bag and manufacture method thereof
CN210762016U (en) Water-proof bag
CN201023835Y (en) Vacuum packing bag
CN205396903U (en) Rhombus wrapping bag
JP6263947B2 (en) Manufacturing method of package
JP2015000745A (en) Method for manufacturing package
CN106564688B (en) Storage pocket
KR101129821B1 (en) Manufacturing methods of vinyl resin for vacuum pack and the vinyl resin for vacuum pack thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200707

WD01 Invention patent application deemed withdrawn after publication