TW389692B - Thermos bag with invariable temperature - Google Patents

Abstract

A thermos bag with invariable temperature is a sealed flexible plastic bag which is filled with chemical compositions including: (a) sodium acetate hydrate (CH3COONa.3H2O) with a w/w percentage of 50% to 85%; (b) water (H2O) with a w/w percentage of 7.5% to 15%; and (c) powder additives with a w/w percentage of 7.5% to 35%, wherein the additive is selected from the group consisting of calcium carbonate (CaCO3) or one or more of the group of talcum powder.

Description

A7 B7 V. Description of the invention (/) Left AiS's past: bag. This invention relates to a kind of hot pack, especially ㈣-sister warm pack. (Please read the precautions of the back, and then fill out this page.) US Patent No. 4,077, which has disclosed a conventional teaching pack. It is a sealed flexible plastic bag body. There is a saturated sodium acetate aqueous solution and a metal elastic sheet is placed in the bag. The metal elastic sheet is in contact with the saturated steel acetate aqueous solution. The metal elastic sheet can be activated by bounce. Saturated sodium acetate solution crystallizes. When sodium acetate crystallizes, it can release heat. The crystals of steel acetate in the hot pack can be dissolved (regenerated; reduced) by boiling and heating. Therefore, the hot pack can be reused. However, the conventional hot compress bag is slow to dissolve due to the content of the ingredients. It must be boiled for a period of time to dissolve all the sodium acetate crystals. Otherwise, if the sodium acetate crystal seeds remain, they will be cooled after a little cooling. All crystals made the reduction fail. Therefore, the conventional heat pack has its shortcomings in use. --- line In addition, U.S. Patent No. 4,880,953 discloses a method for reducing heat packs by using microwave energy. However, when the hot pack is in the microwave, the metal elastic sheet 'in the hot pack can easily cause energy concentration and may burn out the plastic bag body. Therefore, reducing the hot pack with microwave energy still has its shortcomings in practical use. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in view of this 'inventor's years of experience in this product design and production and sales' research, I hope to develop a function that meets the actual needs and is easy to reduce the heat with microwave energy. After repeated experiments, the bag began to develop the "constant temperature hot pack". The purpose and introduction of the invention: This paper size applies the Chinese national standard (CNS > A4 specification (210 X 297 male j A7 A7 employee consumption system B7 5. Invention description ())) The purpose of the present invention is to provide-strange Warm compress packs, which can be used in the original or regenerated form, and are relatively easy to reduce or regenerate. Another purpose of this month is to provide _ weird warm packs, which can be used within a specific temperature range In order to maintain a relatively long time, the constant temperature heat pack of the present invention is mainly to modify the chemical composition filled in the conventional heat pack, that is, the chemical composition filled in the sealed flexible plastic bag. The composition of the product is changed. The strange warm pack of the present invention is filled with a chemical composition, and the chemical composition includes the following components: (a) aqueous sodium acetate (CH3COONa.3H2〇), its weight Percentage 50% to 85%; (b) water (H2O), whose weight percentage is 75% to 20%; and (C) powder additives, whose weight percentage is 7.5% to 40%, the additive is selected from the group consisting of: Calcium carbonate (CaC〇3) or talc There are two ways to use the thermostatic compress bag of the present invention. The first can be used as a full thermostatic compress bag. For example, it can be maintained at 5 2 ± 2 ° C for more than 60 minutes. The use of the compress is relatively safe and convenient; Second, it can also be used as a reusable hot pack. The crystal can be reduced to a solution state by heating, and then it can be crystallized to release heat, so that it can be used repeatedly. In use, the chemical composition is preferably (a) 60% to 75% by weight of water-containing acetic acid steel, (b) 10% to 15% by weight of water, and (c) powder additives Paper Size Standards for Financial Services (CNS) A4 (210 ^ 297¾-

(Please read the precautions on the back before filling this page) -Φ 装 ---- ； --- | Order --------- Y. Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau, Ministry of Economic Affairs 2. Description of the invention (today) The percentage is 20% to 35. /. . When the 怔 warm heat pack of the present invention is used as a reducible and reusable heat pack, the chemical composition is preferably (a) 50% to 65% by weight of aqueous sodium acetate, and (b) water by weight. 7 5% to 12 5%, (c) 25% to 40% by weight of powder additives. When the present invention is used as a reducible hot pack for reusability, it is also necessary to place an initiator in the flexible plastic bag body, and start a saturated aqueous solution of acetic acid steel. The starter can be a metal elastic sheet, wherein the starter is treated with a covered plastic shell or treated with a matte surface, so that it can be suitable for heating and reduction with microwave energy. For ease of explanation, the following preferred embodiments and drawings may be used for better understanding.

Detailed description of the embodiments. Please refer to the first figure. A constant-temperature hot pack according to the present invention mainly includes a sealed flexible plastic bag body 10 and a chemical composition 20 filled in a body 10. For the use of the present invention, the thermostatic compressing bag of the present invention can be used as a security blister. The compressing bag is immersed in a high temperature (6 (m⑼.〇〇) during use.

This paper is suitable for financial standards (CNS) A4 specifications (21〇φ — (Please read the precautions on the back before filling out this page) Order the A7 printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs' ----- ^ i B7___ V. Outline of Invention (“)” In hot water, dissolve most of the chemical composition in the bag body ο20. After removal, the heat pack can be maintained at 52 ± 2X for a period of _ period of time. The use of heat pack is relatively safe Convenient. In addition, the thermostatic heat pack of the present invention can be used as a reducible and reusable heat pack. Please refer to the first figure again. When the present invention is used as a reusable heat pack, it must be in a flexible plastic bag body 1 The starter 30 is placed inside, and the crystal of the saturated sodium acetate aqueous solution is started by the starter 30, and the solution is reduced to a solution state by heating, and can be restarted to crystallize, and the amount is two times, so as to reduce and reuse. About the constant temperature of the present invention Hot pack, the chemical composition filled in it, the composition is ⑷aqueous sodium acetate (CH3COONa.3H2〇), which can be purchased directly from the market. In the present invention, the use of aqueous sodium acetate is directly based on cost. Considerations, Water sodium acetate is much cheaper than sodium acetate. The component (b) water can be of ordinary water quality without any restrictions. The component powder additive can be calcium carbonate (CaC03) or talc powder group. Mixing one or more of them; in general, the purpose of incorporating powder additives is to block the formation of massive crystals; in other words, when a saturated sodium acetate solution is crystallized due to cooling crystallization or upon start-up, there is a powder additive Existence, it will not form large crystals, but form finer crystals. The formation of finer crystals is of special significance because it is relatively fast when dissolved or reduced by heating. It is also the choice of powder additives to avoid suspension Precipitation or precipitation in a saturated sodium acetate aqueous solution, the specific gravity is not too light or too heavy, it is best to choose a specific gravity between 1.4 to 1.9, and must avoid dissolving in saturated sodium acetate aqueous solution.

IIί— 丨-" ---- Φ 装 · ί C Please read the notes on the back before filling in this page}.

Size of this paper: Chinese National Standard (cNs) AliiTi ^ A7 B7 389692 V. Description of the Invention (Comparative Example 1) A total of 600 grams of 514.28 grams of water-containing sodium acetate and 85.72 grams of water, filled in a plastic bag that is 30 cm long and 15 cm wide It is the most commonly used heat pack in the seal after the body. Example 1 (Safe constant temperature hot pack) A total of 600 grams of water containing 41.43 grams of sodium acetate, 120 grams of calcium carbonate and 68.57 grams of water was filled in a plastic bag body of 30 cm in length and 15 cm in width. This is a safe constant temperature hot pack. Example 2 (reduced and reusable hot pack) A total of 600 g of sodium acetate 342.86 g, 200 g of calcium carbonate and 57.14 g of water were filled into a plastic bag body of 30 cm in length and 15 cm in width and placed in a metal elastic sheet Then it is sealed. This is a reusable hot pack. 0 Effect test: Take the hot packs of Comparative Example 1, Example 1, and Example 2 respectively, and soak them in about 2 liters of hot water at 95 ° C. Take out after 5 minutes, 10 minutes, 15 minutes, 20 minutes, 30 minutes, measure the residual amount of solid crystals of the water-containing acetate steel, and measure the length of the heat pack to maintain a constant temperature (52 ± 2.0). The results As shown in Table 1. Yongzhang scale + National Standard (CNS) A4 specification (210 X 29fiJ7 \) y ..---!; ---- Φ 装 · ---- ^ --- T Order- -------- 婢. (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 389692

5. Description of the invention (< Table 1

Compared with the thermal compressing bag of Comparative Example 1 in Table 1, compared with the thermal compressing bag of Example 1, the thermal compressing bag is also immersed in hot water for 20 minutes and taken out. The thermal compressing bag of Example 1 of the present invention can be maintained at a constant temperature of 52 ± 2 C for up to 9 〇 minutes, far higher than the conventional comparative example of a hot pack of 58 minutes. Compared with the thermal compress bag of Comparative Example 1 in Table 1, compared with the thermal compress bag of Example 2, the same was immersed in hot water for 15 minutes. The acetic acid steel crystals of the thermal compress bag of Example 2 of the present invention have been completely dissolved, (the reduction is successful). Conventional Comparative Example 1 There are still 349.2 g of sodium acetate crystals in the hot pack. The crystals in the hot pack have not been dissolved (not reduced successfully). Therefore, by changing the composition ratio of the chemical components in the hot pack, the standard of the family (CNS) A4 is 0 x 297. Please read the precautions on the back before filling this page) ------- * Order -------- line ί Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 38 ^ 692

V. Description of the invention (7) And successfully provided a hot compress bag that can last longer but warm; in another aspect, it also successfully provided a hot compress bag that is easier to restore and convenient for regeneration. The preferred embodiment includes all local changes or modifications that are derived from the technical ideas of this case and are easily inferred by those skilled in the art, without departing from the patent right transfer in this case. As mentioned above, the purpose, means and effects of this case are showing its technical characteristics that are different from the conventional ones. It has novelty, progress, and industrial applicability. It is in line with the patent requirements of the invention. The members clearly observed and prayed for the granting of patents at an early date. m Read and read the note of φ and fill in this page again. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs.

Claims (1)

389692 The '! Mutual Temperature Hot Pack' is a sealed, flexible plastic bag that is printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs and filled with a chemical composition that includes the following components: ( a) aqueous sodium acetate (CH3CO〇Na.3H2〇), 50% to 85% by weight; (b) water (H2〇), 7.5% to 15% by weight; and (c) powder additive, its weight The percentage is 7.5% to 35%, and the additive is selected from one or more of the group consisting of calcium carbonate (CaC03) or talc. 2. The hot pack according to item i of the patent application range, wherein the powder additive is calcium carbonate. 3. The hot pack according to item 1 of the applied patent garden, wherein the chemical composition is (a) 60% to 75% by weight of aqueous sodium acetate, and (b) 10% by weight of water. 15%, (c) 20% to 350/0 by weight of powdered calcium carbonate. 4. The hot compress bag as described in item 丨 of the patent application scope, wherein the chemical composition is (a) 50% to 65% by weight of aqueous sodium acetate, (b) 7.5% to 12.5% by weight of water (C) The weight percentage of the powder additive is 25% to 40%. 5. The hot pack according to item 4 of the scope of patent application, wherein the stomach | the flexible plastic bag has a starter capable of activating a stupid crystal of a saturated sodium acetate aqueous solution. This paper is suitable for China National Standards (CNS) 厶 4 secret (210X297 ^ · ^. | Please read the notes on the back before filling in this page}