CN-224225674-U - Thermal insulation bag

Abstract

The utility model discloses a thermal insulation bag, which comprises a composite membrane, wherein the composite membrane is matched with the bag body to form the bag body and a cover, one end of the cover is fixed with the bag body, a bag opening is formed in the bag body, the cover is positioned at the bag opening, the thermal insulation bag further comprises a plastic film air column, a first female magic tape, a first male magic tape, a second female magic tape and a second male magic tape, the first female magic tape is arranged on the cover, the first male magic tape is arranged on the outer wall of the bag body, the second female magic tape and the second male magic tape are respectively arranged on the inner walls of the two sides of the bag body, the plastic film air column is arranged on the inner wall of the bag body, and the plastic film air column is positioned between the first female magic tape and the second female magic tape. The thermal insulation bag realizes the thermal insulation of articles in the bag body and prolongs the thermal insulation time to the maximum extent.

Inventors

• ZHOU YIYAN
• GE CHANGYAN
• JIN CHENGBIN

Assignees

• 杭州勤诚塑料包装材料有限公司

Dates

Publication Date

20260512

Application Date

20250624

Claims (10)

1. 1. The utility model provides a thermal insulation bag, includes compound diaphragm, compound diaphragm cooperation together forms the bag body and lid, lid one end is together fixed with the bag body, the sack has been seted up on the bag body, the lid is located sack department, its characterized in that still includes plastic film gas column, first female magic subsides, first male magic subsides, second female magic subsides and second male magic subsides, first female magic subsides set up in on the lid, first male magic subsides set up on the outer wall of the bag body, second female magic subsides set up respectively on the both sides inner wall of the bag body with the male magic subsides of second, the plastic film gas column sets up on the inner wall of the bag body, just the plastic film gas column is located between first female magic subsides and the female magic subsides of second.
2. 2. The thermal bag of claim 1 wherein the first female velcro is equal in length to the first male velcro and the second female velcro is equal in length to the second male velcro.
3. 3. A thermal bag according to claim 1 wherein the length of the first female velcro is equal to the length of the second female velcro.
4. 4. A thermal insulation bag according to claim 1, wherein said plastic film air column is adhesively fitted to an inner wall of one side of said bag body.
5. 5. The thermal insulation bag of claim 1, wherein the composite membrane comprises a pearl wool layer, a first aluminum foil layer, a second aluminum foil layer, a first PE film layer and a second PE film layer, the first PE film layer and the second PE film layer are respectively arranged on two sides of the pearl wool layer, the first aluminum foil layer is arranged between the pearl wool layer and the first PE film layer, and the second aluminum foil layer is arranged between the pearl wool layer and the second PE film layer.
6. 6. The thermal insulation bag of claim 5, further comprising a non-woven fabric layer, wherein the non-woven fabric layer is disposed on one side of the second PE film layer, and the second aluminum foil layer and the non-woven fabric layer are disposed on two sides of the second PE film layer, respectively.
7. 7. The thermal insulation bag of claim 5, wherein the first and second PE film layers have equal thickness, and the first PE film layer has a thickness of 30-70 microns.
8. 8. The thermal insulation bag of claim 5, wherein the first aluminum foil layer and the second aluminum foil layer have equal thickness, and the first aluminum foil layer has a thickness of 10 micrometers to 15 micrometers.
9. 9. The thermal insulation bag of claim 5, wherein the thickness of the pearl wool layer is 0.1cm to 0.2 cm.
10. 10. A thermal insulation bag according to claim 1, wherein the outer wall of the bag body is provided with a belt.

Description

Thermal insulation bag Technical Field The utility model relates to the field of packaging articles, in particular to a heat preservation bag. Background The heat-insulating bag is a conventional food product, the structure of which is shown in patent publication CN303351840S, the heat-insulating bag is made of a heat-insulating composite film material into a bag body and a cover, one end of the cover is sewn and fixed with the bag body, and the bag body and the cover are sealed by a zipper, but the sealing by the zipper is actually incapable of preventing convection of internal air and external air due to gaps in the zipper, so the heat-insulating effect of the heat-insulating bag shown in CN303351840S is very poor. Disclosure of utility model The utility model aims at the problems and provides the heat preservation bag, double sealing of the heat preservation bag is realized by arranging the first female magic tape, the first male magic tape, the second female magic tape and the second male magic tape, and the plastic film air column is arranged to prevent convection of air flow, so that heat preservation of the bag body is realized, and the heat preservation time is prolonged to the maximum extent. The technical scheme adopted by the utility model is as follows: The utility model provides a thermal insulation bag, includes compound diaphragm, compound diaphragm cooperation forms bag body and lid together, lid one end is together fixed with the bag body, the pocket has been seted up on the bag body, the lid is located pocket department, still includes plastic film gas post, first female magic subsides, first male magic subsides, second female magic subsides and second male magic subsides, first female magic subsides set up in on the lid, first male magic subsides set up on the outer wall of the bag body, second female magic subsides and second male magic subsides set up respectively on the both sides inner wall of the bag body, the plastic film gas post sets up on the inner wall of the bag body, just the plastic film gas post is located between first female magic subsides and the second female magic subsides. In the heat preservation bag, the bag body and the cover are prepared by utilizing the composite membrane, one end of the cover is directly fixed with the bag opening of the bag body, the cover is positioned at the bag opening of the bag body, and the cover is used for sealing the bag opening. The use method of the heat preservation bag comprises the following steps of firstly placing an article to be placed in a bag body, adhering a second female magic tape to a second male magic tape, forming a bottom bag cavity by the bag body, placing the article to be preserved in the bottom bag cavity, extruding the bag wall of the bag body above the bottom bag cavity, enabling a plastic film air column to be adhered to the inner walls of two sides, adhering the first female magic tape to the first male magic tape, forming an upper bag cavity, wherein the plastic film air column is arranged in the upper bag cavity, and is positioned in the upper bag cavity, so that convection of air in the inner and outer air of the bag body can be effectively avoided, and the temperature in the bottom bag cavity is positioned as far as possible due to the effect of isolating air flow, thereby realizing durable and effective heat preservation (or cold preservation) of the article. The thermal insulation bag is temporarily sealed by means of the magic tape, so that the thermal insulation bag can be reused. To sum up, in this kind of thermal insulation bag, through setting up first female magic subsides, first male magic subsides, second female magic subsides and second male magic subsides, realized the dual seal to the thermal insulation bag to through setting up plastic film gas column, the convection current of air current can be prevented to the plastic film gas column, thereby realized the internal heat preservation to the bag, furthest extension heat preservation time. Optionally, the first female magic tape is equal to the first male magic tape in length, and the second female magic tape is equal to the second male magic tape in length. Optionally, the length of the first female velcro is equal to the length of the second female velcro. Optionally, the plastic film air column is bonded and matched with the inner wall of one side of the bag body. Optionally, the composite membrane comprises a pearl cotton layer, a first aluminum foil layer, a second aluminum foil layer, a first PE film layer and a second PE film layer, wherein the first PE film layer and the second PE film layer are respectively arranged on two sides of the pearl cotton layer, the first aluminum foil layer is arranged between the pearl cotton layer and the first PE film layer, and the second aluminum foil layer is arranged between the pearl cotton layer and the second PE film layer. Optionally, the packaging structure further comprises a non-woven fabric la