Method for solving storage deformation of acidic cleaning product in PET bottle

Abstract

The invention provides a method for solving storage deformation of an acidic cleaning product in a PET bottle, and belongs to the technical field of cleaning agent packaging. The method comprises the following steps: after the acidic cleaning product is prepared, adding 0.01%-5% by mass of carbonic ester substances into the acidic cleaning product, uniformly stirring, canning by adopting a PET bottle, sealing, packaging, transporting and warehousing. According to the method disclosed by the invention, the problem of deformation of the acid cleaning product stored in the PET bottle is effectively solved on the premise of not changing the production process of the cleaning product and not influencing the cleaning effect of the cleaning product.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning agent packaging, and in particular relates to a method for solving the problem of deformation of acidic cleaning products during storage in PET bottles. Background Art

[0002] Polyethylene terephthalate (PET) is the most important thermoplastic polyester in life. PET has the advantages of being non-toxic, odorless, safe, light, permeable and glossy, not easy to break, and good barrier to oxygen and ultraviolet rays. PET can be made into fully transparent bottles to better display products and improve the appearance quality of products. PET has a higher recycling rate, and packaging can be produced faster, improving production efficiency and reducing production costs. Therefore, PET is widely used in beverages, edible oils, seasonings, liquor and other fields.

[0003] With the implementation of the national dual-carbon strategy, reducing the use of plastic packaging in the field of daily chemical packaging is an important low-carbon development direction, so PET packaging has also begun to be used in the packaging of various daily chemical products. However, PET has the problem of poor pressure resistance and vacuum resistance. When liquid is stored in PET bottles for a long time, changes in external air pressure, temperature, volume of liquid in the bottle, oxidation of substances in the bottle, uneven bottle body, too thin bottle wall, unreasonable bottle body design, etc. will cause the problem of PET bottle deformation. At present, the main solutions to the problem of PET bottle deformation are filling the bottle with liquid (such as bottled beverages) and filling the bottle with inert gas (such as carbonated beverages with carbon dioxide or edible oil with nitrogen, etc.) during canning. However, acidic cleaning agents will produce more foam during canning due to the presence of surfactants in the liquid, so it is impossible to completely fill the bottle with liquid, and the introduction of carbon dioxide into carbonated beverages needs to be completed in a sealed and high-pressure resistant material kettle, while the cleaning agent's material kettle is an unsealed, non-pressure-resistant container that cannot complete the filling of liquid carbon dioxide. However, nitrogen filling requires low-temperature storage of liquid nitrogen and equipment for filling liquid nitrogen, which will greatly increase the production cost of the cleaning agent. The above methods are not suitable for the production of acidic cleaning products, so it is necessary to develop new technical routes to solve the deformation problem of acidic cleaning agents in PET bottles. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a method for solving the deformation of acidic cleaning products stored in PET bottles, which effectively solves the problem of deformation of acidic cleaning products stored in PET bottles without changing the production process of the cleaning products and without affecting the cleaning efficacy of the cleaning products.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] The first aspect of the present invention provides a method for solving the deformation of acidic cleaning products stored in PET bottles, the method comprising:

[0007] After the acid cleaning product is prepared, 0.01% to 5% of carbonate substances are added thereto, stirred evenly, and PET bottles are used for canning, sealing, packaging, transportation and storage.

[0008] The second aspect of the present invention provides a new use of carbonate substances in the preparation of acidic cleaning products, wherein the addition of carbonate substances can effectively prevent the acidic cleaning products from being deformed during storage in PET bottles.

[0009] Furthermore, the addition amount of the carbonate substance is 0.01% to 5% of the acidic cleaning product.

[0010] Furthermore, the raw materials of the acidic cleaning product include acidic substances, surfactants, additives, and water, wherein the acidic substance is a complex formed by one or more acids selected from hydrochloric acid, sulfuric acid, phosphoric acid, aminosulfonic acid, citric acid, lactic acid, and fruit acid.

[0011] Furthermore, the carbonate substances include propylene carbonate, ethylene carbonate, butylene carbonate, trimethylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, and methyl propyl carbonate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The method of the present invention is simple to operate. Without changing the original production process of the acidic cleaning product, after the original chemical process is completed, carbonate substances are added to the chemical can and stirred evenly, and then the method can be filled, sealed, transported and stored according to the original process; carbonate substances will undergo hydrolysis reaction under acidic conditions to generate alcohol substances and carbon dioxide. During the storage process, the acid substances in the acidic cleaning agent can catalyze the decomposition of carbonate substances, and the reaction slowly generates and releases carbon dioxide. The trace amount of carbon dioxide generated can increase the pressure in the bottle, thereby preventing the problem of bottle deflation caused by changes in the external environment;

[0014] 2. In the method of the present invention, during the process of the carbonate substance slowly releasing carbon dioxide, the acid substance of the acidic cleaning product itself only acts as a catalyst, and the concentration will not change before and after the reaction, so it will not affect the decontamination efficiency of the acidic cleaning product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 This is a comparison chart of the test results of Example 1;

[0017] Figure 2 This is a comparison chart of the test results of Example 2. DETAILED DESCRIPTION

[0018] The examples are provided to better illustrate the present invention, but the present invention is not limited to the examples. Therefore, those skilled in the art may make non-essential improvements and adjustments to the implementation scheme according to the above invention content, which still fall within the protection scope of the present invention.

[0019] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0020] The present invention will be described in detail below by way of examples. It should be understood that the following examples are only used to further explain and illustrate the content of the present invention in detail, and are not used to limit the present invention.

[0021] The products involved in the following embodiments, toilet cleaners and scented bathroom cleaners are all from Beijing Green Umbrella Technology Co., Ltd.; in addition, toilet cleaners, toilet cleaning liquids, scented toilet cleaners, strong toilet cleaners, toilet cleaners, strong porcelain cleaners, bathroom porcelain cleaners and other cleaning products are all suitable for the method described in this application.

[0022] Propylene carbonate was purchased from Shandong Senjie Cleaning Technology Co., Ltd.

[0023] Example 1

[0024] This embodiment takes the product of Toilet Cleaner as an example and provides a method for solving the deformation of the product during storage in a PET bottle. The method is as follows:

[0025] After the preparation of the toilet cleaning product is completed, 0.08% and 0.5% by mass of propylene carbonate are added thereto respectively, and the mixture is stirred evenly. PET bottles are used for canning, sealing, packaging, transportation and storage.

[0026] At the same time, the Toilet Cleaner product without adding propylene carbonate was used as the untreated sample, and PET bottles were also used for canning, sealing, packaging, transportation and storage.

[0027] The above three groups of samples (three replicates in each group) were stored in a 40°C incubator for 72 hours and then transferred to 4°C for 24 hours to observe the bottle deformation effect.

[0028] like Figure 1As shown, 1# is an untreated sample; 2# is a sample with 0.08% propylene carbonate added; 3# is a sample with 0.5% propylene carbonate added (left to right). It can be seen that the bottle shape of the sample with 0.5% added is not deformed.

[0029] Example 2

[0030] This embodiment takes a fragrance bathroom cleaner product as an example and provides a method for solving the deformation of the product during storage in a PET bottle. The method is as follows:

[0031] After the preparation of the fragrance bathroom cleaner product is completed, 0.05% and 0.1% by mass of propylene carbonate are added thereto, stirred evenly, and PET bottles are used for canning, sealing, packaging, transportation and storage.

[0032] At the same time, a fragrance bathroom cleaner product without adding propylene carbonate was used as an untreated sample and was also canned, sealed, packaged, transported and stored in PET bottles.

[0033] The above three groups of samples (two replicates in each group) were stored in a 40°C incubator for 72 hours and then transferred to 4°C for 24 hours to observe the bottle deformation effect.

[0034] like Figure 2 As shown, 1# is an untreated sample; 2# is a sample with 0.05% propylene carbonate added; 3# is a sample with 0.1% propylene carbonate added (left to right). It can be seen that the bottle shape of the sample with 0.1% addition does not change.

[0035] Finally, it should be noted that the above is only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred arrangement scheme, a person skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for solving the problem of acidic cleaning products being deformed during storage in PET bottles, characterized in that: The method is: After the acid cleaning product is prepared, 0.01% to 5% of carbonate substances are added thereto, stirred evenly, and PET bottles are used for canning, sealing, packaging, transportation and storage.

2. The method according to claim 1, characterized in that The raw materials of the acidic cleaning product include acidic substances, surfactants, additives and water, wherein the acidic substances are a complex formed by one or more acids selected from hydrochloric acid, sulfuric acid, phosphoric acid, aminosulfonic acid, citric acid, lactic acid and fruit acid.

3. The method according to claim 1 or 2, characterized in that: The carbonate substances include propylene carbonate, ethylene carbonate, butylene carbonate, trimethylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, and methyl propyl carbonate.

4. A new use of carbonate substances in the preparation of acidic cleaning products, characterized in that: The addition of carbonate substances can effectively prevent the deformation of acidic cleaning products during storage in PET bottles.

5. The new use according to claim 4, characterized in that: The added amount of carbonate substances is 0.01% to 5% of the acidic cleaning product.

6. The new use according to claim 4 or 5, characterized in that: The raw materials of the acidic cleaning product include acidic substances, surfactants, additives and water, wherein the acidic substances are a complex formed by one or more acids selected from hydrochloric acid, sulfuric acid, phosphoric acid, aminosulfonic acid, citric acid, lactic acid and fruit acid.

7. The new use according to claim 4 or 5, characterized in that: The carbonate substances include propylene carbonate, ethylene carbonate, butylene carbonate, trimethylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, and methyl propyl carbonate.

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