Lightweight moisture-resistant and wear-resistant packaging carton

Abstract

The present application relates to the technical field of carton production, and proposes a light, moisture-proof and wear-resistant packaging carton, which comprises, from top to bottom, a face paper, a corrugated paper core and an inner paper, characterized in that the face paper comprises the following components by weight: wood pulp 60-70 parts, fiber 4-6 parts, flame retardant 1-3 parts, n-butyl glycidyl ether 1-3 parts, polyethylene glycol 3-5 parts, resin 8-10 parts, defoaming agent 0.5-1 part, and modified calcium chloride 20-30 parts; the modified calcium chloride is obtained by modifying calcium chloride with epoxy propyl 2-methoxyphenyl ether. The above technical solution solves the problems of poor moisture resistance and wear resistance of the packaging carton in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carton production, in particular to a light, moisture-proof and wear-resistant packaging carton. BACKGROUND

[0002] With the rapid development of express and logistics, we often use cartons for packaging in daily life. Cartons are the most widely used packaging products at present, and the demand is very large. According to the materials of cartons, there are corrugated cartons, single-layer paperboard boxes, etc. Corrugated cartons are made of face paper, corrugated paper core and inner paper, and have good buffering and shock absorption performance, and have good protection performance for packaged articles. In the field of packaging and transporting electrical appliances, textiles, etc., some large commodities such as furniture and home appliances will be damaged by friction with the ground, etc., affecting the packaging effect of the carton; and when packaging textiles, better moisture-proof effect is required. Therefore, how to prepare a light, moisture-proof and wear-resistant packaging carton is a problem to be solved. SUMMARY

[0003] The present application provides a light, moisture-proof and wear-resistant packaging carton, which solves the problem of poor moisture-proof and wear resistance of the packaging carton in the related art.

[0004] The technical scheme of the present application is as follows:

[0005] The present application provides a light, moisture-proof and wear-resistant packaging carton, which includes face paper, corrugated paper core and inner paper arranged from top to bottom, characterized in that the face paper comprises the following components by weight: wood pulp 60-70 parts, fiber 4-6 parts, flame retardant 1-3 parts, n-butyl glycidyl ether 1-3 parts, polyethylene glycol 3-5 parts, resin 8-10 parts, defoaming agent 0.5-1 part, and modified calcium chloride 20-30 parts.

[0006] The modified calcium chloride is obtained by modifying calcium chloride with epoxy propyl 2-methoxyphenyl ether.

[0007] As a further technical scheme, the addition amount of the epoxy propyl 2-methoxyphenyl ether is 4%-6% of the calcium chloride.

[0008] In the present application, the calcium chloride is modified by epoxy propyl 2-methoxyphenyl ether, and the addition amount of the epoxy propyl 2-methoxyphenyl ether is limited to 4%-6% of the calcium chloride, which further improves the moisture-proof and wear resistance of the packaging carton.

[0009] As a further technical scheme, the addition amount of the epoxy propyl 2-methoxyphenyl ether is 5% of the calcium chloride.

[0010] As a further technical scheme, the calcium chloride is calcium chloride dihydrate.

[0011] As a further technical solution, the preparation method of the modified calcium chloride comprises the following steps: adding calcium chloride dihydrate and epoxy propyl 2-methoxyphenyl ether into anhydrous ethanol for modification, filtering and drying to obtain the modified calcium chloride.

[0012] As a further technical solution, the modification temperature is 40-50 DEG C, and the modification time is 1-2h.

[0013] As a further technical solution, the calcium chloride dihydrate is in powder form.

[0014] In the application, by adding powder calcium chloride dihydrate, the moisture resistance of the packaging carton is improved.

[0015] As a further technical solution, the fiber is polyester fiber and / or silicon carbide fiber.

[0016] In the application, by adding polyester fiber and / or silicon carbide fiber, the wear resistance of the packaging carton is improved.

[0017] As a further technical solution, the length of the polyester fiber is 3mm, and the diameter is 10-30μm.

[0018] As a further technical solution, the length of the silicon carbide fiber is 60μm, and the diameter is 7μm.

[0019] As a further technical solution, when the fiber is polyester fiber and silicon carbide fiber, the mass ratio of the polyester fiber and the silicon carbide fiber is 7-9:1.

[0020] As a further technical solution, the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide and zinc borate.

[0021] As a further technical solution, the polyethylene glycol comprises one or more of polyethylene glycol 400, polyethylene glycol 600 and polyethylene glycol 800.

[0022] As a further technical solution, the resin is one or both of epoxy resin and phenolic resin.

[0023] As a further technical solution, the defoaming agent comprises one or more of polyether defoaming agent, silicone defoaming agent and high carbon alcohol defoaming agent.

[0024] The application also proposes a preparation method of a light, moisture-proof and wear-resistant packaging carton, comprising the following steps:

[0025] S1, the raw materials of the surface paper are uniformly mixed, and the surface paper is obtained by pressing molding and drying;

[0026] S2, coating the corrugated paper core with adhesive on both sides, respectively, and sticking the face paper and the back paper on the upper and lower sides of the corrugated paper core, respectively, and drying to obtain the light, moisture-proof and wear-resistant carton.

[0027] As a further technical solution, the temperature of the mixing is 70-90 DEG C.

[0028] As a further technical solution, the adhesive is polyvinyl alcohol.

[0029] As a further technical solution, the corrugated paper core is low-speed paperboard, and the back paper is kraft paper.

[0030] The working principle and beneficial effects of the present application are as follows:

[0031] In the present application, by adding fibers in the packaging carton raw materials, the pressure strength of the packaging carton is enhanced, and the weight of the carton is reduced; by adding calcium chloride modified by epoxy propyl 2-methoxyphenyl ether, the moisture resistance and wear resistance of the packaging carton are improved. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are involved in the scope of protection of the present application.

[0033] In the following examples and comparative examples:

[0034] Polyether defoaming agent, model: YT-1800, purchased from Jinan Yutao Chemical Co., Ltd.;

[0035] Silicone defoaming agent, model: HK-6356, purchased from Chongqing Haixi Environmental Protection Technology Co., Ltd.;

[0036] High carbon alcohol defoaming agent, model: B-470, purchased from Guangdong Zhonglian Federation Fine Chemical Co., Ltd.;

[0037] Epoxy resin, model: EP137, purchased from Shanghai Yantitan E-commerce Co., Ltd.;

[0038] Phenolic resin, model: 2130, purchased from Wuxi Jiunai Corrosion Protection Material Co., Ltd.;

[0039] Polyester fiber, length 3mm, diameter 10-30μm, purchased from Shandong Yitai Engineering Material Co., Ltd.;

[0040] Silicon carbide fiber, 60μm, diameter 7μm.

[0041] Example 1

[0042] A preparation method of a light moisture-proof wear-resistant packaging carton, comprising the following steps:

[0043] S1, 60 parts of wood pulp, 4 parts of polyester fiber, 1 part of aluminum hydroxide, 1 part of n-butyl glycidyl ether, 3 parts of polyethylene glycol 400, 8 parts of epoxy resin, 0.5 parts of polyether defoaming agent, 20 parts of modified calcium chloride are mixed uniformly at 70 DEG C, and then pressed into a shape and dried to obtain a surface paper;

[0044] S2, the low-speed paperboard is coated with polyvinyl alcohol on both sides, and the surface paper and kraft paper are adhered to the upper and lower surfaces of the low-speed paperboard respectively, and then dried to obtain a light moisture-proof wear-resistant carton.

[0045] A preparation method of modified calcium chloride, comprising the following steps: 50g of calcium chloride dihydrate powder and 0.5g of epoxy propyl 2-methoxyphenyl ether are added to 800ml of anhydrous ethanol, stirred at 40 DEG C for 2h, filtered and dried to obtain modified calcium chloride.

[0046] Example 2

[0047] A preparation method of a light moisture-proof wear-resistant packaging carton, comprising the following steps:

[0048] S1, 65 parts of wood pulp, 5 parts of polyester fiber, 2 parts of magnesium hydroxide, 4 parts of n-butyl glycidyl ether, 4 parts of polyethylene glycol 600, 9 parts of phenolic resin, 0.75 parts of organic silicon defoaming agent, 25 parts of modified calcium chloride are mixed uniformly at 80 DEG C, and then pressed into a shape and dried to obtain a surface paper;

[0049] S2, the low-speed paperboard is coated with polyvinyl alcohol on both sides, and the surface paper and kraft paper are adhered to the upper and lower surfaces of the low-speed paperboard respectively, and then dried to obtain a light moisture-proof wear-resistant carton.

[0050] A preparation method of modified calcium chloride, comprising the following steps: 50g of calcium chloride dihydrate powder and 0.5g of epoxy propyl 2-methoxyphenyl ether are added to 800ml of anhydrous ethanol, stirred at 45 DEG C for 1.5h, filtered and dried to obtain modified calcium chloride.

[0051] Example 3

[0052] A preparation method of a light moisture-proof wear-resistant packaging carton, comprising the following steps:

[0053] S1, 70 parts of wood pulp, 6 parts of polyester fiber, 3 parts of zinc borate, 5 parts of n-butyl glycidyl ether, 5 parts of polyethylene glycol 800, 10 parts of phenolic resin, 1 part of high carbon alcohol defoaming agent, 30 parts of modified calcium chloride are mixed uniformly at 90 DEG C, and then pressed into a shape and dried to obtain a surface paper;

[0054] S2, coating the low-speed paperboard with polyvinyl alcohol on both sides, respectively, and sticking the face paper and kraft paper on the upper and lower surfaces of the low-speed paperboard, respectively, and drying to obtain a light, moisture-proof and wear-resistant carton.

[0055] The preparation method of modified calcium chloride comprises the following steps: adding 50g of calcium chloride dihydrate powder and 0.5g of epoxy propyl 2-methoxyphenyl ether into 800mL of anhydrous ethanol, stirring at 50℃ for 1h, filtering and drying to obtain modified calcium chloride.

[0056] Example 4

[0057] The difference between this example and Example 1 is that the addition amount of epoxy propyl 2-methoxyphenyl ether is 5g.

[0058] Example 5

[0059] The difference between this example and Example 1 is that the addition amount of epoxy propyl 2-methoxyphenyl ether is 2g.

[0060] Example 6

[0061] The difference between this example and Example 1 is that the addition amount of epoxy propyl 2-methoxyphenyl ether is 2.5g.

[0062] Example 7

[0063] The difference between this example and Example 1 is that the addition amount of epoxy propyl 2-methoxyphenyl ether is 3g.

[0064] Example 8

[0065] The difference between this example and Example 1 is that 4 parts of polyester fiber are replaced by 4 parts of silicon carbide fiber.

[0066] Example 9

[0067] The difference between this example and Example 1 is that 4 parts of polyester fiber are replaced by 3.5 parts of polyester fiber and 0.5 parts of silicon carbide fiber.

[0068] Example 10

[0069] The difference between this example and Example 1 is that 4 parts of polyester fiber are replaced by 3.6 parts of polyester fiber and 0.4 parts of silicon carbide fiber.

[0070] Comparative Example 1

[0071] A preparation method of a light, moisture-proof and wear-resistant packaging carton comprises the following steps:

[0072] S1, 60 parts of wood pulp, 4 parts of polyester fiber, 1 part of aluminum hydroxide, 3 parts of n-butyl glycidyl ether, 3 parts of polyethylene glycol 400, 8 parts of epoxy resin, 0.5 parts of polyether defoaming agent, 20 parts of calcium chloride dihydrate powder were mixed uniformly at 100℃, and then were pressed and formed, and then were dried to obtain the face paper.

[0073] S2, the low-speed paperboard was coated with polyvinyl alcohol on both sides, and the face paper and kraft paper were adhered to the upper and lower surfaces of the low-speed paperboard respectively, and then were dried to obtain the light moisture-proof wear-resistant carton.

[0074] Comparative Example 2

[0075] The present comparative example is compared with Example 1, and the only difference is that no polyester fiber is added.

[0076] The breaking strength of the light moisture-proof wear-resistant packaging carton prepared in Examples 1-10 and Comparative Examples 1-2 was determined by the determination method in GB / T 1539-2007 "Determination of Breaking Strength of Paperboard", and the average burst value was determined by the determination method in GB / T 1540-2002 "Determination of Water Absorption of Paper and Paperboard by Burst Method", and the determination time was 120s, and the determination results are shown in Table 1.

[0077] Table 1 Performance determination results of the light moisture-proof wear-resistant packaging carton in Examples 1-10 and Comparative Examples 1-2

[0078]

[0079] Compared with Example 1, the raw materials of the packaging carton in Comparative Example 1 were added with unmodified calcium chloride dihydrate powder, and the burst value of the prepared packaging carton was higher than that of Example 1, and the breaking strength was lower than that of Example 1, which indicated that the modification of calcium chloride dihydrate powder with epoxy propyl 2-methoxyphenyl ether could improve the moisture resistance and wear resistance of the packaging carton.

[0080] Compared with Example 1, the addition amount of epoxy propyl 2-methoxyphenyl ether was changed in Examples 4-7, and the results showed that the burst value of the packaging carton prepared in Examples 1 and 4 was higher than that in Examples 5-7, and the breaking strength was lower than that in Examples 5-7, which indicated that when the addition amount of epoxy propyl 2-methoxyphenyl ether was 4%-7% of the mass of calcium chloride dihydrate powder, the moisture resistance and wear resistance of the packaging carton could be further improved.

[0081] Comparative Examples 5-7, it was found that the burst value of the packaging carton prepared in Example 6 was lower than that in Examples 5 and 7, and the breaking strength was higher than that in Examples 5 and 7, which indicated that when the addition amount of epoxy propyl 2-methoxyphenyl ether was 5% of the mass of calcium chloride dihydrate powder, the moisture resistance and wear resistance of the obtained packaging carton were the best.

[0082] Compared with example 1, the comparative example 2 does not add polyester fiber, and the result is that the moisture resistance and wear resistance of the packaging carton prepared by the comparative example 2 are higher than those of the example 1, which shows that adding polyester fiber into the surface paper can improve the moisture resistance and wear resistance of the packaging carton.

[0083] Compared with example 1, the example 8 only adds silicon carbide fiber, the example 9 and the example 10 simultaneously add polyester fiber and silicon carbide fiber, and the mass ratio of the polyester fiber and the silicon carbide fiber is changed, and the result is that the moisture resistance and wear resistance of the packaging carton prepared by the example 9 and the example 10 are lower than those of the example 1 and the example 8, which shows that when the mass ratio of the polyester fiber and the silicon carbide fiber is 7-9:1, the moisture resistance and wear resistance of the packaging carton can be further improved.

[0084] The above only is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A light weight, moisture resistant, wear resistant packaging carton comprising a top paper, a corrugated paper core and a bottom paper arranged in order from top to bottom, characterized in that, The face paper comprises raw materials of the following components by weight: wood pulp 60-70 parts, fiber 4-6 parts, flame retardant 1-3 parts, n-butyl glycidyl ether 1-3 parts, polyethylene glycol 3-5 parts, resin 8-10 parts, defoaming agent 0.5-1 part, modified calcium chloride 20-30 parts; The modified calcium chloride is obtained by modifying calcium chloride with epoxy propyl 2-methoxyphenyl ether; The addition amount of the epoxy propyl 2-methoxyphenyl ether is 4%-6% of the calcium chloride; The fiber is polyester fiber and / or silicon carbide fiber.

2. A lightweight, moisture resistant, wear resistant packaging carton according to claim 1, wherein, The length of the polyester fiber is 3 mm, and the diameter is 10-30 μm.

3. A lightweight, moisture resistant, wear resistant carton according to claim 1, wherein, The length of the silicon carbide fiber is 60 μm, and the diameter is 7 μm.

4. A lightweight, moisture resistant, wear resistant packaging carton according to claim 1, wherein, When the fiber is polyester fiber and silicon carbide fiber, the mass ratio of the polyester fiber to the silicon carbide fiber is 7-9:

1.

5. A lightweight, moisture resistant, wear resistant carton according to claim 1 wherein, The flame retardant is one or more of aluminum hydroxide, magnesium hydroxide, and zinc borate.

6. A lightweight, moisture resistant, wear resistant packaging carton according to claim 1 wherein, The resin is one or both of epoxy resin and phenolic resin.

7. A lightweight, moisture resistant, wear resistant packaging carton according to claim 1 wherein, The defoaming agent comprises one or more of polyether defoaming agent, silicone defoaming agent, and high-carbon alcohol defoaming agent.

8. A lightweight, moisture resistant, wear resistant packaging carton according to claim 1, wherein, The polyethylene glycol comprises one or more of polyethylene glycol 400, polyethylene glycol 600, and polyethylene glycol 800.

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