CN114608237A - Ice bag and preparation method thereof - Google Patents

Ice bag and preparation method thereof Download PDF

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Publication number
CN114608237A
CN114608237A CN202210222586.0A CN202210222586A CN114608237A CN 114608237 A CN114608237 A CN 114608237A CN 202210222586 A CN202210222586 A CN 202210222586A CN 114608237 A CN114608237 A CN 114608237A
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China
Prior art keywords
space
layer
water
inner layer
ice bag
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Pending
Application number
CN202210222586.0A
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Chinese (zh)
Inventor
荣育凤
李长泳
田春兰
崔象凯
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Nuo Chen Co ltd
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Nuo Chen Co ltd
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Priority to CN202210222586.0A priority Critical patent/CN114608237A/en
Publication of CN114608237A publication Critical patent/CN114608237A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Packages (AREA)

Abstract

The invention relates to the technical field of ice bags, in particular to an ice bag and a preparation method thereof, wherein the ice bag comprises a bag body and two isolation layers, the bag body is of a sealing structure, the two isolation layers are positioned inside the bag body, the two isolation layers divide the inside of the bag body into three sealed spaces, the three sealed spaces comprise a first space for containing water, a second space for containing a refrigerant and a third space for containing a water-absorbing material, and the first space and the second space are adjacent; mixing the water of the first space and the refrigerant of the second space to form a low temperature liquid mixture by rupturing a first insulation layer located between the first space and the second space; the water-absorbing material of the third space absorbs the low-temperature liquid mixture and forms a low-temperature solid by rupturing the second isolation layer. The invention provides an ice bag which is convenient to carry and does not need to be frozen for cooling before use.

Description

Ice bag and preparation method thereof
Technical Field
The invention relates to the technical field of ice bags, in particular to an ice bag and a preparation method thereof.
Background
The ice bag is a common article in daily life, can be used for cooling a human body and keeping the freshness of commodities.
In the related art, the ice bag needs to be frozen and cooled before being used, so that the ice bag has certain time delay in use, cannot be used in an emergency, and cannot be used independently without refrigeration equipment.
Therefore, an ice bag is urgently needed to overcome the defects.
Disclosure of Invention
The embodiment of the invention provides an ice bag and a preparation method thereof, the ice bag is convenient to carry, and the ice bag does not need to be frozen for cooling before use.
In a first aspect, the invention provides an ice bag, which comprises a bag body and two isolation layers, wherein the bag body is of a sealing structure, the two isolation layers are positioned inside the bag body and divide the inside of the bag body into three sealed spaces, and the three sealed spaces comprise a first space for containing water, a second space for containing a refrigerant and a third space for containing a water-absorbing material, wherein the first space and the second space are adjacent;
mixing the water of the first space and the refrigerant of the second space to form a low temperature liquid mixture by rupturing a first insulation layer located between the first space and the second space;
the water-absorbing material of the third space absorbs the low-temperature liquid mixture and forms a low-temperature solid by rupturing the second isolation layer.
Preferably, the barrier layer is made using heat sealing tape.
Preferably, the volume ratio of the first space, the second space and the third space is (50-90): (5-20): (5-30).
Preferably, the bag body comprises an inner layer and an outer layer, the inner layer is made of a polyethylene film, the outer layer is made of non-woven fabric, and the gram weight of the polyethylene film is 30-150 g/m2The gram weight of the non-woven fabric is 15-80 g/m2。
Preferably, the inner layer comprises an inner surface and an outer surface, the outer surface comprises a first outer surface and a second outer surface, a heat insulation layer is arranged on the first outer surface, and the heat insulation layer is fixed on the first outer surface through a low-temperature resistant structural adhesive.
Preferably, the heat insulation layer is made of heat insulation cotton, sponge or hot air cotton, the thickness of the heat insulation layer is 1-20 mm, and the gram weight of the heat insulation layer is 30-200 g/m2。
Preferably, the bag body is provided with a fixing band, and the fixing band is used for fixing the bag body.
Preferably, the refrigerant is ammonium nitrate.
Preferably, the water absorbing material is super absorbent resin, the particle size of the super absorbent resin is 20-100 meshes, the absorption speed is 20-50 s, and the water retention capacity is not less than 25 times.
In a second aspect, the present invention provides a method for preparing an ice bag based on any one of the above first aspects, comprising:
preparing an inner layer comprising a bag opening by using a polyethylene film;
filling water-absorbing materials into the inner layer from the bag openings;
sealing the water absorbent material in the inner layer with a barrier layer;
filling refrigerant into the inner layer from the bag opening;
sealing the refrigerant in the inner layer with the barrier layer;
filling water into the inner layer from the bag opening;
sealing the bag opening of the inner layer;
sealing the water in the inner layer with the insulation layer;
and fixing the outer layer made of non-woven fabric on the outer surface of the inner layer through a low-temperature resistant structural adhesive.
Preferably, the inner layer comprises an inner surface and an outer surface, the outer surface comprising a first outer surface and a second outer surface;
after the step of sealing the pockets of the inner layer and before the step of fixing the outer layer made of non-woven fabric on the inner layer by a low temperature resistant structural adhesive, further comprising:
and a heat insulation layer is arranged on the first outer surface, and is fixed on the first outer surface through a low-temperature-resistant structural adhesive.
Compared with the prior art, the invention at least has the following beneficial effects:
in the invention, the bag body of the sealing structure is internally divided into three sealing spaces by two isolation layers, namely a first space for placing water, a second space for placing a refrigerant and a third space for placing a water absorbing material, wherein the first space and the second space are adjacent, namely the third space cannot be arranged between the first space and the second space. The adjacent first space and the second space are separated by a first isolation layer, and the third space and the first space or the second space are separated by a second isolation layer. When the ice bag needs to be used, the first isolation layer is firstly damaged, after the first isolation layer is broken, the water in the first space and the refrigerant in the second space are mixed together to initiate endothermic reaction, and a low-temperature liquid mixture is formed after the reaction; then the second isolation layer is destroyed, so that the water absorption material in the third space absorbs the low-temperature liquid mixture and forms low-temperature solid, and then the ice bag can be used for cooling. According to the arrangement, the temperature of the ice bag can be reduced without refrigeration equipment, the ice bag can be separated from the refrigeration equipment for independent use, the convenience of the use of the ice bag is greatly improved, in addition, water reacts with a refrigerant quickly, the refrigeration efficiency is high, and the water absorption speed of the water absorption material is high.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions in the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view illustrating a structure of an ice bag according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a pouch according to an embodiment of the present invention;
in the figure:
1-bag body;
11-an inner layer;
12-an outer layer;
13-thermal insulation layer;
2-an isolating layer;
3-a first space;
4-a second space;
5-a third space;
6-fixing the belt.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, it is obvious that the described embodiments are some, but not all embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "upper" and "lower" as used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
As shown in fig. 1, the present invention provides an ice bag, comprising a bag body 1 and two isolation layers 2, wherein the bag body 1 is a sealed structure, the two isolation layers 2 are both located inside the bag body 1, the two isolation layers 2 divide the inside of the bag body 1 into three sealed spaces, and the three sealed spaces comprise a first space 3 for placing water, a second space 4 for placing a refrigerant and a third space 5 for placing a water absorbing material, wherein the first space 3 is adjacent to the second space 4;
mixing the water of the first space 3 and the refrigerant of the second space 4 to form a low temperature liquid mixture by rupturing the first insulation layer 2 located between the first space 3 and the second space 4;
by rupturing the second barrier layer 2, the water-absorbing material of the third space 5 absorbs the low-temperature liquid mixture and forms a low-temperature solid.
In the present invention, the bag body 1 of the sealed structure is internally divided into three sealed spaces by two isolation layers 2, namely, a first space 3 for placing water, a second space 4 for placing refrigerant and a third space 5 for placing water-absorbing material, wherein the first space 3 and the second space 4 are adjacent, that is, the third space 5 cannot be in the middle of the first space 3 and the second space 4. The adjacent first space 3 and second space 4 are separated by the first isolation layer 2, and the third space 5 is separated from the first space 3 or the second space 4 by the second isolation layer 2. When the ice bag needs to be used, the first isolation layer 2 is firstly damaged, after the first isolation layer 2 is broken, the water in the first space 3 and the refrigerant in the second space 4 are mixed together to initiate endothermic reaction, and a low-temperature liquid mixture is formed after the reaction; the second insulating layer 2 is then destroyed, so that the water-absorbing material of the third space 5 absorbs the low-temperature liquid mixture and forms a low-temperature solid, which can then be cooled using an ice bag. According to the arrangement, the temperature of the ice bag can be reduced without refrigeration equipment, the ice bag can be separated from the refrigeration equipment for independent use, the convenience of the use of the ice bag is greatly improved, in addition, water reacts with a refrigerant quickly, the refrigeration efficiency is high, and the water absorption speed of the water absorption material is high.
The size and shape of the ice bag can be designed according to the use requirement, the size of the ice bag is preferably 1-20cm, and the shape of the ice bag is preferably rectangular.
According to some preferred embodiments, the barrier layer 2 is made using heat sealing strips.
In the invention, the heat sealing strip is adopted to prepare the isolating layer 2, the heat sealing strip can play a role of water isolation and can break under the condition of certain pressure, the minimum pressure for the heat sealing strip to break is 5-50N, and the heat sealing strip can break under the action of manual extrusion.
It should be noted that, when the first isolation layer 2 is damaged, if the first space 3 is between the second space 4 and the third space 5, the first isolation layer 2 is damaged by squeezing the second space 4, and if the second space 4 is between the first space 3 and the third space 5, the first isolation layer 2 is damaged by squeezing the first space 3, otherwise, squeezing the middle first space 3 or the second space 4 may cause the second isolation layer 2 to be damaged, which may cause water to be absorbed by the water absorbing material before reacting with the refrigerant, and thus the temperature of the ice bag may not be lowered.
According to some preferred embodiments, the volume ratio of the first space 3, the second space 4 and the third space 5 is (50-90): (5-20): (5-30).
In the present invention, the volume ratio of the first space 3 in which water is placed is the highest, and the volume ratio of the second space 4 in which the refrigerant is placed and the third space 5 in which the water absorbing material is placed is low, so that the temperature of water can be lowered by a small amount of refrigerant, and also, water having a mass several tens of times as large as that of water can be absorbed by a small amount of water absorbing material, and therefore, the volume ratio of the second space 4 in which the refrigerant is placed and the third space 5 in which the water absorbing material is placed is low.
According to some preferred embodiments, the bag body 1 comprises an inner layer 11 and an outer layer 12, wherein the inner layer 11 is made of polyethylene film, the outer layer 12 is made of non-woven fabric, and the gram weight of the polyethylene film is 30-150 g/m2The gram weight of the non-woven fabric is 15-80 g/m2。
In the invention, the bag body 1 adopts a structure of an inner layer 11 and an outer layer 12, and the inner layer 11 is made of a waterproof polyethylene film, so that the leakage of water inside the bag body can be prevented; the outer layer 12 is made of non-woven fabric, the structure of the inner layer 11 can be effectively protected, and the overall strength of the ice bag is enhanced, wherein the non-woven fabric is hot air non-woven fabric or spun-bonded non-woven fabric.
As shown in fig. 2, according to some preferred embodiments, the inner layer 11 includes an inner surface and an outer surface, the outer surface includes a first outer surface and a second outer surface, the first outer surface is provided with the thermal insulation layer 13, and the thermal insulation layer 13 is fixed on the first outer surface by a low temperature resistant structural adhesive.
In the invention, the heat insulation layer 13 is arranged on the first outer surface, the heat insulation layer 13 is not arranged on the second outer surface, and the arrangement is that after the first isolation layer 2 and the second isolation layer 2 are damaged in sequence to cool the ice bag, the temperature of the outer layer 12 attached to the heat insulation layer 13 is reduced slowly, and the temperature of the outer layer 12 attached to the second outer surface without the heat insulation layer 13 is reduced quickly, so that the use surface of the ice bag can be selected according to the use requirement, if the temperature is required to be reduced quickly, the outer layer 12 with low temperature is selected to cool, if the temperature is required to be reduced mildly, the outer layer 12 with high temperature is selected to cool, and if the temperature is required to be reduced by holding, the outer layer 12 with high temperature is attached to the part needing to cool, thereby preventing the hand from being frostbitten.
According to some preferred embodiments, the thermal insulation layer 13 is made of thermal insulation cotton, sponge or hot air cotton, the thickness of the thermal insulation layer 13 is 1-20 mm, and the gram weight is 30-200 g/m2。
In the invention, the heat insulation layer 13 is made of soft heat insulation cotton, sponge or hot air cotton with low density, and the thickness of the heat insulation layer 13 is controlled to be 1-20 mm, so that the temperature reduction range of the outer layer 12 attached to the heat insulation layer 13 can be reduced, and the thickness of the bag body 1 can not be influenced.
According to some preferred embodiments, the bag body 1 is provided with a fixing strap 6, and the fixing strap 6 is used for fixing the bag body 1.
In the invention, the fixing belt 6 is arranged on the outer surface of the bag body 1, so that the ice bag is convenient to fix and is prevented from displacement. The fixing belt 6 is arranged around the outer surface of the bag body 1, so that the ice bag can be further conveniently fixed, the fixing belt 6 is made of non-woven fabric or elastic tape, and the length of the fixing belt 6 is 10-50 cm.
According to some preferred embodiments, the refrigerant is ammonium nitrate.
In the invention, the refrigerant is 1-20 g of solid ammonium nitrate, and the ammonium nitrate is very soluble in water and can absorb a large amount of heat during dissolution, so that the temperature of the water is reduced.
According to some preferred embodiments, the water absorbing material is super absorbent resin, the particle size of the super absorbent resin is 20-100 meshes, the absorption speed is 20-50 s, and the water retention capacity is not less than 25 times.
In the invention, the water-absorbing material is high water-absorbing resin which has excellent water-absorbing performance, high water-absorbing speed, large absorption capacity and high water retention rate, and the usage amount of the high water-absorbing resin in a single ice bag is 5-20 g.
In a second aspect, the present invention also provides a method for preparing an ice bag based on any one of the above items, comprising:
preparing an inner layer 11 comprising a bag opening by using a polyethylene film;
filling water-absorbing materials into the inner layer 11 from the bag opening;
the water absorbing material is sealed in the inner layer 11 by the isolating layer 2;
filling the refrigerant into the inner layer 11 from the bag opening;
the refrigerant is sealed in the inner layer 11 by the isolation layer 2;
filling water into the inner layer 11 from the bag opening;
sealing the bag opening of the inner layer 11;
sealing water in the inner layer 11 by the isolation layer 2;
the outer layer 12 made of non-woven fabric is fixed to the outer surface of the inner layer 11 by a low temperature resistant structural adhesive.
In the invention, the inner part of the inner layer 11 is divided into three sealed spaces by two isolating layers 2, and the three sealed spaces are respectively used for placing water, placing refrigerant and placing water-absorbing material, wherein the space for placing water and the space for placing refrigerant are adjacent, namely the space for placing water-absorbing material cannot be arranged between the space for placing water and the space for placing refrigerant. The space for placing water and the space for placing the refrigerant which are adjacent are separated by the first isolating layer 2, and the space for placing the water absorbing material and the space for placing water or the space for placing the refrigerant are separated by the second isolating layer 2. When the ice bag needs to be used, the first isolation layer 2 is firstly damaged, after the first isolation layer 2 is broken, the water and the refrigerant are mixed together to initiate endothermic reaction, and a low-temperature liquid mixture is formed after the reaction; the second insulating layer 2 is then destroyed so that the water-absorbing material absorbs the low-temperature liquid mixture and forms a low-temperature solid, which can then be cooled using an ice pack. According to the arrangement, the temperature of the ice bag can be reduced without refrigeration equipment, the ice bag can be separated from the refrigeration equipment for independent use, the convenience of the use of the ice bag is greatly improved, in addition, water reacts with a refrigerant quickly, the refrigeration efficiency is high, and the water absorption speed of the water absorption material is high.
In the invention, the inner layer 11 including the bag opening is prepared by adopting an integral forming technology through film blowing, cutting and heat sealing processes, so that the whole inner layer 11 is integrated, seamless and more pressure-resistant. The sealing treatment of the two ends of the bag opening is carried out by adopting a hot pressing or ultrasonic pressing mode for complete sealing.
According to some preferred embodiments, the inner layer 11 comprises an inner surface and an outer surface, the outer surface comprising a first outer surface and a second outer surface;
after the step of sealing the mouths of the inner layer 11 and before the step of fixing the outer layer 12 made of non-woven fabric to the inner layer 11 by means of a low temperature resistant structural adhesive, further comprising:
the heat insulation layer 13 is arranged on the first outer surface, and the heat insulation layer 13 is fixed on the first outer surface through a low-temperature-resistant structure adhesive.
In the invention, the heat insulation layer 13 is arranged on the first outer surface, the heat insulation layer 13 is not arranged on the second outer surface, and the arrangement is that after the first isolation layer 2 and the second isolation layer 2 are damaged in sequence to cool the ice bag, the temperature of the outer layer 12 attached to the heat insulation layer 13 is reduced slowly, and the temperature of the outer layer 12 attached to the second outer surface without the heat insulation layer 13 is reduced quickly, so that the use surface of the ice bag can be selected according to the use requirement, if the temperature is required to be reduced quickly, the outer layer 12 with low temperature is selected to cool, if the temperature is required to be reduced gently, the outer layer 12 with high temperature is selected to cool, if the temperature is required to be reduced by holding, the outer layer 12 with high temperature is attached to the part to be cooled, and the hand is prevented from being frostbitten.
The low-temperature resistant structural adhesive has low-temperature adaptability and can still maintain excellent adhesive effect in a low-temperature environment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. An ice bag is characterized by comprising a bag body (1) and two isolation layers (2), wherein the bag body (1) is of a sealing structure, the two isolation layers (2) are located inside the bag body (1), the two isolation layers (2) divide the inside of the bag body (1) into three sealed spaces, and the three sealed spaces comprise a first space (3) for containing water, a second space (4) for containing a refrigerant and a third space (5) for containing a water absorbing material, wherein the first space (3) is adjacent to the second space (4);
-mixing the water of the first space (3) and the refrigerant of the second space (4) to form a cryogenic liquid mixture by rupturing a first insulation layer (2) located between the first space (3) and the second space (4);
the second separation layer (2) is broken so that the water-absorbing material of the third space (5) absorbs the low-temperature liquid mixture and forms a low-temperature solid.
2. An ice bag according to claim 1, wherein said barrier layer (2) is made by heat sealing.
3. An ice bag according to claim 1, characterized in that the volume ratio of the first space (3), the second space and the third space (5) is (50-90): (5-20): (5-30).
4. An ice bag according to claim 1, wherein said bag body (1) comprises an inner layer (11) and an outer layer (12), said inner layer (11) is made of polyethylene film, said outer layer (12) is made of non-woven fabric, said polyethylene film has a grammage of 30-150 g/m2The gram weight of the non-woven fabric is 15-80 g/m2。
5. An ice bag according to claim 4, wherein said inner layer (11) comprises an inner surface and an outer surface, said outer surface comprising a first outer surface and a second outer surface, said first outer surface being provided with a thermal insulation layer (13), said thermal insulation layer (13) being secured to said first outer surface by a low temperature resistant structural adhesive.
6. An ice bag according to claim 5, wherein the thermal insulation layer (13) is made of heat insulation cotton, sponge or hot air cotton, the thickness of the thermal insulation layer (13) is 1-20 mm, and the gram weight is 30-200 g/m2。
7. An ice bag according to claim 1, characterized in that a fixing strap (6) is arranged on the bag body (1), said fixing strap (6) being used to fix the bag body (1).
8. An ice bag according to claim 1, wherein the refrigerant is ammonium nitrate;
and/or the presence of a gas in the atmosphere,
the water absorption material is super absorbent resin, the particle size of the super absorbent resin is 20-100 meshes, the absorption speed is 20-50 s, and the water retention rate is not less than 25 times.
9. A method for making an ice bag according to any one of claims 1 to 8, comprising:
preparing an inner layer (11) comprising a pocket opening by using a polyethylene film;
filling water-absorbing materials into the inner layer (11) from the bag openings;
sealing the water-absorbing material in the inner layer (11) with a barrier layer (2);
filling refrigerant into the inner layer (11) from the bag opening;
sealing the refrigerant in the inner layer (11) with the barrier layer (2);
filling water into the inner layer (11) from the bag opening;
sealing the pocket mouth of the inner layer (11);
-sealing the water in the inner layer (11) with the insulation layer (2);
an outer layer (12) made of non-woven fabric is fixed to the outer surface of the inner layer (11) by a low temperature resistant structural adhesive.
10. The method of manufacturing according to claim 9, wherein the inner layer (11) comprises an inner surface and an outer surface, the outer surface comprising a first outer surface and a second outer surface;
after the step of sealing the pockets of the inner layer (11) and before the step of fixing the outer layer (12) made of non-woven fabric on the inner layer (11) by a low temperature resistant structural adhesive, further comprising:
and a heat insulation layer (13) is arranged on the first outer surface, and the heat insulation layer (13) is fixed on the first outer surface through a low-temperature-resistant structure adhesive.
CN202210222586.0A 2022-03-07 2022-03-07 Ice bag and preparation method thereof Pending CN114608237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210222586.0A CN114608237A (en) 2022-03-07 2022-03-07 Ice bag and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210222586.0A CN114608237A (en) 2022-03-07 2022-03-07 Ice bag and preparation method thereof

Publications (1)

Publication Number Publication Date
CN114608237A true CN114608237A (en) 2022-06-10

Family

ID=81860344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210222586.0A Pending CN114608237A (en) 2022-03-07 2022-03-07 Ice bag and preparation method thereof

Country Status (1)

Country Link
CN (1) CN114608237A (en)

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