A high heat-resistant cosmetic packaging hose and preparation method thereof

Abstract

The present application discloses a highly heat-resistant cosmetic packaging hose and a preparation method thereof. A highly heat-resistant cosmetic packaging hose comprises the following raw materials in parts by weight: 50‑80 parts of high-density polyethylene, 20‑30 parts of metallocene polyethylene, 10‑18 parts of SiO2-modified β-cyclodextrin, 5‑10 parts of KH550‑SiO2, 3‑5 parts of antioxidant, and 3‑5 parts of plasticizer. A method for preparing a highly heat-resistant cosmetic packaging hose comprises the following steps: drying, mixing and stirring the raw materials, extruding at 130‑140°C, and preparing the hose. The cosmetic packaging hose prepared in the present application has excellent comprehensive performance, high heat resistance, and good barrier performance, which effectively prevents the mutual penetration between oxygen molecules in the air outside the hose and the molecules in the contents of the hose.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetic packaging hoses, and in particular to a highly heat-resistant cosmetic packaging hose and a preparation method thereof. Background Art

[0002] With the increasing popularity of the cosmetics consumer market, the cosmetics packaging industry has also developed rapidly. Cosmetic packaging materials are divided into cosmetic packaging hoses, hard packaging boxes and packaging films. Cosmetic packaging hoses are materials used to hold cosmetics, which play a role of barrier and preservation, directly affecting the storage and quality of cosmetics, and are an indispensable item in cosmetic packaging. During the use of cosmetics, due to long-term repeated squeezing by external forces, cosmetic packaging hoses are prone to deformation and damage, resulting in leakage of contents or long-term infiltration of water vapor and oxygen in a humid environment, which affects the quality of the contents, and mutual penetration occurs between oxygen molecules in the air outside the hose and molecules in the contents inside the hose.

[0003] The materials of cosmetic packaging hoses are mainly aluminum-plastic hoses and plastic hoses. Among them, although aluminum-plastic hoses can play a barrier role, this type of aluminum-plastic hose packaging material is opaque, has poor recyclability, is not conducive to environmental protection, and has poor extrusion resistance; while plastic hoses are widely favored for their light weight, easy to carry, strong and durable, recyclable, and excellent processing performance.

[0004] However, during the use of current plastic hoses, the barrier properties are poor, and the oxygen molecules in the air outside the hose can easily penetrate into the molecules inside the hose, resulting in a short storage period and poor heat resistance.

[0005] Therefore, there is an urgent need to develop a cosmetic packaging hose with high heat resistance and excellent barrier properties. Summary of the invention

[0006] In order to solve at least one of the above technical problems, a cosmetic packaging hose with high heat resistance and excellent barrier properties is developed. The present application provides a cosmetic packaging hose with high heat resistance and a preparation method thereof.

[0007] On the one hand, the present application provides a highly heat-resistant cosmetic packaging hose, comprising the following raw materials in parts by weight: 50-80 parts of high-density polyethylene, 20-30 parts of metallocene polyethylene, 10-18 parts of SiO2-modified β-cyclodextrin, 5-10 parts of KH550-SiO2, 3-5 parts of antioxidant, and 3-5 parts of plasticizer.

[0008] By adopting the above technical scheme, the cosmetic packaging hose prepared in the present application has excellent comprehensive performance, high heat resistance, and good barrier performance, and effectively prevents the mutual penetration between oxygen molecules in the air outside the hose and the molecules in the content of the hose; using a specific number of SiO2-modified β-cyclodextrin and KH550-SiO2 to add to the cosmetic packaging hose, not only the compatibility of the system is improved, but also a three-dimensional network space structure is formed, the steric hindrance is increased, and the three-dimensional structure is stable and dense; the cosmetic packaging hose prepared by adding KH550-SiO2 has high KH550-SiO2 dispersion and a stable three-dimensional network space structure.

[0009] Optionally, the high-density polyethylene comprises 65 parts and the metallocene polyethylene comprises 25 parts.

[0010] By adopting the above technical solution, the present application adopts high-density polyethylene and metallocene polyethylene in specific weight proportions to prepare a cosmetic packaging hose with better comprehensive performance.

[0011] Optionally, the SiO2-modified β-cyclodextrin is 14 parts and KH550-SiO2 is 8 parts.

[0012] By adopting the above technical solution, the application adds SiO2-modified β-cyclodextrin and KH550-SiO2 in specific weight portions to form a denser network structure, resulting in excellent heat resistance and barrier properties.

[0013] Optionally, the SiO2 modified β-cyclodextrin comprises the following raw materials in parts by weight: 5-8 parts of nano-SiO2 and 10-15 parts of β-cyclodextrin.

[0014] By adopting the above technical solution, the present application controls a specific ratio of nano-SiO2 and β-cyclodextrin to prepare SiO2-modified β-cyclodextrin, which not only avoids the agglomeration of nano-molecules but also forms a more stable three-dimensional network structure.

[0015] Optionally, the cosmetic packaging hose further includes an epoxy / acid anhydride system, and the content of the epoxy / acid anhydride system is 5-12wt% of the high-density polyethylene content.

[0016] Optionally, the epoxy / anhydride system comprises the following raw materials in a weight ratio, epoxy resin: methyl nadic anhydride: diethylenetriamine = 1: (0.4-0.7): (0.1-0.3).

[0017] By adopting the above technical solution, the present application also adds an epoxy / anhydride system, which has a dense structure and is used to prepare a cosmetic packaging hose with high strength, heat resistance and excellent barrier properties.

[0018] Optionally, the epoxy resin is a glycidyl ether epoxy resin.

[0019] Optionally, the antioxidant is butylated hydroxyanisole.

[0020] Optionally, the plasticizer is acrylonitrile-butadiene copolymer.

[0021] In a second aspect, the present application provides a method for preparing the above-mentioned highly heat-resistant cosmetic packaging hose, which comprises the following steps: drying, mixing and stirring the raw materials, and extruding at 130-140°C to prepare the hose.

[0022] By adopting the above technical solution, the process for preparing the cosmetic packaging hose of the present application is simple, and the prepared cosmetic packaging hose has excellent comprehensive performance.

[0023] In summary, the present invention includes at least one of the following beneficial technical effects:

[0024] 1. The cosmetic packaging hose prepared in this application has excellent comprehensive performance, high heat resistance, and good barrier performance, which effectively prevents the mutual penetration between oxygen molecules in the air outside the hose and molecules in the content of the hose;

[0025] 2. The present application adopts a specific amount of SiO2-modified β-cyclodextrin and KH550-SiO2 and adds them to the cosmetic packaging hose, which not only improves the compatibility of the system, but also forms a three-dimensional network space structure, increases the steric hindrance, and the three-dimensional structure is stable and dense; 3. The process for preparing the cosmetic packaging hose in the present application is simple, and the prepared cosmetic packaging hose has excellent comprehensive performance. DETAILED DESCRIPTION

[0026] The present application is further described in detail below with reference to the embodiments.

[0027] The present application designs a highly heat-resistant cosmetic packaging hose, comprising the following raw materials in parts by weight: 50-80 parts of high-density polyethylene, 20-30 parts of metallocene polyethylene, 10-18 parts of SiO2-modified β-cyclodextrin, 5-10 parts of KH550-SiO2, 3-5 parts of antioxidant, and 3-5 parts of plasticizer.

[0028] A highly heat-resistant cosmetic packaging hose of the present application is prepared by the following method, which includes the following steps: drying, mixing and stirring the raw materials, and extruding at 130-140° C. to prepare the hose.

[0029] The preparation method of SiO2 modified β-cyclodextrin is as follows: nano-SiO2 and β-cyclodextrin are added into a container, and then deionized water and a certain amount of NaHSO3 are added, and after stirring for reaction, the mixture is washed with ethanol to prepare SiO2 modified β-cyclodextrin.

[0030] The preparation method of the epoxy / acid anhydride system is as follows: epoxy resin, methyl nadic anhydride and diethylenetriamine are added into a container, and mixed and stirred evenly to prepare the epoxy / acid anhydride system.

[0031] The raw material models of this application are as follows. Unless otherwise specified, the raw materials used in this application are commercially available:

[0032] High-density polyethylene: brand, Taiwan Polymerization, item number LH606;

[0033] Metallocene polyethylene: brand, Primen, product number SP1520;

[0034] KH550-SiO2: Brand, Hongde Nano, purity 98%;

[0035] Nano-SiO2: purity 99%;

[0036] β-cyclodextrin: brand, Qianboyuan, food grade;

[0037] Methyl Nadic Anhydride: Purity 99%;

[0038] Diethylenetriamine: brand, Tosoh, product number, DETA;

[0039] Glycidyl ether epoxy resin: solid content 30%;

[0040] Butylated hydroxyanisole: purity 99.8%;

[0041] Acrylonitrile-butadiene copolymer: Brand: Zhenzhun, item number 55207265.

[0042] Testing items and standards:

[0043] Barrier performance: According to the standard "GB / T1038.2-2022 Test method for gas permeability of plastic film and sheet - Part 2: Isobaric method", the oxygen permeability (cm 3 / m 2 ·24h·0.1Mpa);

[0044] Water vapor transmission rate (g / m 2 24h): According to the standard of "GB / T Determination of water vapor transmission rate of plastic film and sheet - humidity sensor method", the water vapor transmission rate of cosmetic packaging hose is tested (g / m 2 24h);

[0045] Thermal stability: The samples dried in a vacuum oven for 8 h were characterized and analyzed using a thermogravimetric analyzer. The test environment was N2 with a N2 flow rate of 60 mL / min, a heating rate of 10°C / min, a temperature range of 25°C-800°C, and Tg5%. Specific embodiments

[0047] Examples 1-5

[0048] The specific quantities of raw materials used in preparing the cosmetic packaging hoses in Examples 1-5 are shown in Table 1.

[0049] Table 1 Specific quantities of raw materials for preparing packaging hoses for replacement products in Examples 1-5

[0050]

[0051] Wherein, SiO2 modified β-cyclodextrin includes nano-SiO2 and β-cyclodextrin, and the specific proportions are shown in Table 2.

[0052] Table 2 Content of nano-SiO2 and β-cyclodextrin

[0053]

[0054] The antioxidant is butylated hydroxyanisole; and the plasticizer is acrylonitrile-butadiene copolymer.

[0055] The cosmetic packaging hose raw materials of Examples 1-5 are used to prepare cosmetic packaging hoses by the following method, including the following steps: drying, mixing and stirring the raw materials, and extruding to prepare hoses. The specific extrusion temperature is shown in Table 3.

[0056] Table 3 Extrusion temperature of Examples 1-5

[0057]

[0058] Comparative Example 1-2

[0059] Comparative Example 1

[0060] Based on Example 4, except that SiO2-modified β-cyclodextrin was replaced with an equal amount of β-cyclodextrin, the other components and preparation methods were consistent with those of Example 4.

[0061] Comparative Example 2

[0062] Based on Example 4, except that KH550-SiO2 is replaced by SiO2 in equal amounts, the other components and preparation methods are consistent with those of Example 4.

[0063] The performance of the cosmetic packaging hoses prepared in Examples 1-5 and Comparative Examples 1-2 was tested, and the test results are shown in Table 4.

[0064] Table 4 Performance test of cosmetic packaging hoses prepared in Examples 1-5 and Comparative Examples 1-2

[0065]

[0066] It can be seen from Examples 1-5, Comparative Examples 1-2 and Table 4 that the cosmetic packaging hose prepared in the present application has excellent comprehensive performance, low oxygen permeability and water vapor permeability, excellent barrier properties and good thermal stability.

[0067] It can be seen from Comparative Example 1, Example 4 and Table 4 that the cosmetic packaging hose prepared by using unmodified β-cyclodextrin has poor comprehensive performance and cannot effectively block the penetration of oxygen and water vapor; the inventors speculate that the use of SiO2-modified β-cyclodextrin will form a denser three-dimensional network structure, increase the steric hindrance, and improve the comprehensive performance of the prepared cosmetic packaging hose;

[0068] It can be seen from Comparative Example 2, Example 4 and Table 4 that the use of KH550-SiO2, compared with the use of unmodified SiO2, can make the SiO2 molecules more dispersed, less likely to agglomerate, and make the spatial network structure more stable.

[0069] Embodiment 6-10

[0070] Example 6

[0071] Based on Example 4, except that the content of SiO2-modified β-cyclodextrin is 10 kg, the other components and preparation methods are consistent with those of Example 4.

[0072] Example 7

[0073] Based on Example 4, except that the content of SiO2-modified β-cyclodextrin is 12 kg, the other components and preparation methods are consistent with those of Example 4.

[0074] Example 8

[0075] Based on Example 4, except that the content of SiO2-modified β-cyclodextrin is 16 kg, the other components and preparation methods are consistent with those of Example 4.

[0076] Example 9

[0077] Based on Example 4, except that the content of SiO2-modified β-cyclodextrin is 18 kg, the other components and preparation methods are consistent with those of Example 4.

[0078] The performance of the cosmetic packaging hoses prepared in Examples 6-9 was tested, and the test results are shown in Table 5.

[0079] Table 5 Performance test of the cosmetic packaging hose prepared in Examples 6-9

[0080]

[0081] It can be seen from Examples 6-9 and Table 5 that the cosmetic packaging hose prepared in the present application has excellent comprehensive performance, and as the content of SiO2-modified β-cyclodextrin increases, the performance first increases and then weakens.

[0082] Examples 10-14

[0083] Example 10

[0084] Based on Example 4, except that the KH550-SiO2 content is 5kg, the other components and preparation methods are consistent with Example 4.

[0085] Embodiment 11

[0086] Based on Example 4, except that the KH550-SiO2 content is 6 kg, the other components and preparation methods are consistent with Example 4.

[0087] Example 12

[0088] Based on Example 4, except that the KH550-SiO2 content is 7kg, the other components and preparation methods are consistent with Example 4.

[0089] Example 13

[0090] Based on Example 4, except that the KH550-SiO2 content is 9 kg, the other components and preparation methods are consistent with Example 4.

[0091] Embodiment 14

[0092] Based on Example 4, except that the KH550-SiO2 content is 10 kg, the other components and preparation methods are consistent with Example 4.

[0093] The cosmetic packaging hoses prepared in Examples 10-14 were subjected to performance testing, and the test results are shown in Table 6.

[0094] Table 6 Performance test of cosmetic packaging hoses prepared in Examples 10-14

[0095]

[0096] It can be seen from Examples 10-14 and Table 6 that the cosmetic packaging hose prepared in the present application has excellent comprehensive performance, and as the KH550-SiO2 content increases, the performance first increases and then weakens.

[0097] Examples 15-19

[0098] Based on Example 4, except for the addition of an epoxy / anhydride system, the remaining components and preparation methods are consistent with Example 4, wherein the epoxy / anhydride system includes glycidyl ether epoxy resin, methyl nadic anhydride and diethylenetriamine raw materials. The specific ratio and epoxy / anhydride system content are shown in Table 7.

[0099] Table 7 Specific ratios and epoxy / anhydride system contents of Examples 15-19

[0100]

[0101] The cosmetic packaging hoses prepared in Examples 15-19 were subjected to performance testing, and the test results are shown in Table 8.

[0102] Table 8 Performance test of cosmetic packaging hoses prepared in Examples 15-19

[0103]

[0104] It can be seen from Examples 15-19 and Table 8 that the present application also adds an epoxy / anhydride system, and the comprehensive performance of the prepared cosmetic packaging hose is improved, and the performance is more excellent. The inventor speculates that the epoxy / anhydride system forms a unique ester-ether network structure with a dense structure, and the prepared cosmetic packaging hose has high strength, heat resistance and excellent barrier properties.

[0105] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the principles of the present application should be included in the protection scope of the present application.

Claims

1. A highly heat-resistant cosmetic packaging hose, characterized in that: The invention comprises the following raw materials in parts by weight: 50-80 parts of high-density polyethylene, 20-30 parts of metallocene polyethylene, 10-18 parts of SiO2-modified β-cyclodextrin, 5-10 parts of KH550-SiO2, 3-5 parts of antioxidant, and 3-5 parts of plasticizer. The SiO2-modified β-cyclodextrin comprises the following raw materials in parts by weight: 5-8 parts of nano-SiO2 and 10-15 parts of β-cyclodextrin. The preparation method of the SiO2 modified β-cyclodextrin is as follows: nano-SiO2 and β-cyclodextrin are added into a container, deionized water and NaHSO3 are added, stirred for reaction, and then washed with ethanol to prepare the SiO2 modified β-cyclodextrin.

2. A highly heat-resistant cosmetic packaging hose according to claim 1, characterized in that: The high-density polyethylene is 65 parts, and the metallocene polyethylene is 25 parts.

3. The highly heat-resistant cosmetic packaging hose according to claim 1, characterized in that: The SiO2 modified β-cyclodextrin is 14 parts and KH550-SiO2 is 8 parts.

4. The highly heat-resistant cosmetic packaging hose according to claim 1, characterized in that: The cosmetic packaging hose also includes an epoxy / acid anhydride system, and the content of the epoxy / acid anhydride system is 5-12wt% of the high-density polyethylene content.

5. The highly heat-resistant cosmetic packaging hose according to claim 4, characterized in that: The epoxy / anhydride system comprises the following raw materials in a weight ratio: epoxy resin: methyl nadic anhydride: diethylenetriamine = 1: (0.4-0.7): (0.1-0.3).

6. The highly heat-resistant cosmetic packaging hose according to claim 5, characterized in that: The epoxy resin is a glycidyl ether epoxy resin.

7. The highly heat-resistant cosmetic packaging hose according to claim 1, characterized in that: The antioxidant is butylated hydroxyanisole.

8. The highly heat-resistant cosmetic packaging hose according to claim 1, characterized in that: The plasticizer is acrylonitrile-butadiene copolymer.

9. A method for preparing the highly heat-resistant cosmetic packaging hose according to claim 1, characterized in that: The following steps are involved: The raw materials are dried, mixed and stirred, and extruded at 130-140°C to prepare a hose.

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