阅读说明：本技术 一种重型物件包装天地盖纸板用热熔胶粘剂 (Hot melt adhesive for heavy object packaging top and bottom cover paperboard ) 是由 高福刚 陈铭 林政鍊 于 2019-10-25 设计创作，主要内容包括：本发明公开了一种重型物件包装天地盖纸板用热熔胶粘剂,按照重量份数计算,主要包括如下原料：乙烯-醋酸乙烯共聚物20～60份、软化点≧100℃石油树脂混合物5～30份、松香树脂5～30份、高结晶费托蜡混合物5～30份、高腈类共聚物18份、丙烯基改性烷基酚聚氧乙烯醚35份、抗氧化剂0.1～1.0份、聚酯增塑剂16～18份。本发明的热熔胶采用新配方组合,不仅有效提高了热熔胶的抗剪切力及抗张力,更具有高初期强度,能够有效在纸板制作时,快速抵抗来自纸箱的回弹拉力及张力,满足自动化生产线对热熔胶性能的要求。(The invention discloses a hot melt adhesive for a heavy object packaging top and bottom cover paperboard, which mainly comprises the following raw materials in parts by weight: 20-60 parts of ethylene-vinyl acetate copolymer, 5-30 parts of petroleum resin mixture with the softening point being equal to or higher than 100 ℃, 5-30 parts of rosin resin, 5-30 parts of high-crystalline Fischer-Tropsch wax mixture, 18 parts of high-nitrile copolymer, 35 parts of propenyl modified alkylphenol polyoxyethylene ether, 0.1-1.0 part of antioxidant and 16-18 parts of polyester plasticizer. The hot melt adhesive disclosed by the invention is combined by adopting a new formula, so that the shearing resistance and the tension resistance of the hot melt adhesive are effectively improved, the high initial strength is realized, the rebound tension and the tension from a carton can be effectively and quickly resisted when a paperboard is manufactured, and the requirement of an automatic production line on the performance of the hot melt adhesive is met.)

1. A hot melt adhesive for heavy object packaging top and bottom cover paper boards is characterized in that: the composite material comprises the following raw materials in parts by weight:

ethylene-vinyl acetate copolymer: 20 to 60 portions of

Softening point ≧ 100 ℃ petroleum resin mixture: 5 to 30 parts of

Rosin resin: 5 to 30 parts of

High crystalline fischer-tropsch wax mixture: 5 to 30 parts of

High nitrile copolymers: 18 portions of

Propenyl-modified alkylphenol ethoxylates: 35 portions of

Antioxidant: 0.1 to 1.0 portion

Polyester plasticizer: 16 to 18 portions of

The high nitrile copolymer is formed by copolymerizing an acrylate polymer and a styrene polymer; the allyl modified alkylphenol polyoxyethylene ether is 10 wt% of monodisperse hollow ZnO micron particle doped allyl modified alkylphenol polyoxyethylene ether.

2. A hot melt adhesive for heavy goods packaging top and bottom lidding paperboard as claimed in claim 1, wherein: the composite material comprises the following raw materials in parts by weight:

ethylene-vinyl acetate copolymer: 22 to 58 portions of

Softening point ≧ 100 ℃ petroleum resin mixture: 8 to 26 portions of

Rosin resin: 8 to 26 portions of

High crystalline fischer-tropsch wax mixture: 8 to 26 portions of

High nitrile copolymers: 18 portions of

Propenyl-modified alkylphenol ethoxylates: 35 portions of

Antioxidant: 0.1 to 1.0 portion

Polyester plasticizer: 16-18 parts.

3. A hot melt adhesive for heavy goods packaging top and bottom lidding paperboard as claimed in claim 2, wherein: the composite material comprises the following raw materials in parts by weight:

ethylene-vinyl acetate copolymer: 40 portions of

Softening point ≧ 100 ℃ petroleum resin mixture: 20 portions of

Rosin resin: 20 portions of

High crystalline fischer-tropsch wax mixture: 20 portions of

High nitrile copolymers: 18 portions of

Propenyl-modified alkylphenol ethoxylates: 35 portions of

Antioxidant: 0.5 portion

Polyester plasticizer: 16 parts of.

4. A hot melt adhesive for heavy goods packaging top and bottom lidding paperboard as claimed in claim 1, wherein: the manufacturing method comprises the following steps:

s1, weighing materials: weighing the raw materials of the ethylene-vinyl acetate copolymer, petroleum resin mixture with the softening point being equal to or higher than 100 ℃, rosin resin, high-crystallization Fischer-Tropsch wax mixture, high-nitrile copolymer, propenyl modified alkylphenol polyoxyethylene ether, antioxidant and polyester plasticizer according to the claim 1;

s2, stirring and mixing: the weighed raw materials are poured into a container with a heating outer coil pipe in sequence, stirred by a stirrer to be fully mixed, and heated;

s3, extrusion forming: putting the fully mixed raw materials into a granulator, and granulating the mixed raw materials;

s4, sealing and storing: putting the granular colloidal particles into a sealed bag, and storing in a dry and ventilated manner.

5. The hot melt adhesive for heavy-duty article packaging top and bottom cover boards of claim 4, wherein: for S2, the stirring speed was 1200-1400 rpm.

6. The hot melt adhesive for heavy-duty article packaging top and bottom cover boards of claim 4, wherein: for S2, in the stirring process, the interior of the reaction kettle is heated to raise the temperature, wherein the heating temperature is 120-150 ℃.

7. The hot melt adhesive for heavy-duty article packaging top and bottom cover boards of claim 4, wherein: for S2, the stirring time is not less than 0.6h during the stirring process.

Technical Field

The invention relates to the technical field of hot melt adhesives, in particular to a hot melt adhesive for a top and bottom cover paperboard for heavy object packaging.

Background

After printing and corner cutting are finished on the traditional top and bottom cover paper boards (such as top and bottom cover paper boxes for heavy object packaging and transportation, furniture, household appliances, artworks and the like), a mechanical processing procedure of nailing by a nailing machine is required to be carried out by depending on manual or semi-manual auxiliary equipment, namely, the nailing machine can finish the single-corner joint (four corners need to be jointed for four times) in turn, the production efficiency is lower, the production cost is increased, because the occupied space is increased after the paper box forming machine is nailed and formed, a plurality of products are accumulated and placed on the tray, and great space waste is caused, so that a paper box forming machine with a top cover and a bottom cover is provided, generally, the paper box forming machine adopts a PLC (programmable logic controller), a photoelectric tracking system, a hydropneumatic system and a touch screen man-machine interface, and the actions of automatically feeding paper boards, automatically cutting corners of the paper boards, forming the paper boards, gluing four corners, positioning and attaching and forming the paper boards are completed at one time, and the production efficiency is improved by thirty times compared with that of the traditional process. Especially when heavy objects are sold, the cardboard is required not to have any nailing so as to be convenient for recycling and processing.

However, the reason why the nailing at four corners of the top and bottom cover paper board is still strong in shearing force and tension after the nailing and forming of the paper board is achieved, so that how to replace the manual nailing with the hot melt adhesive to realize automation and improve production efficiency becomes a hotspot, and therefore, we propose a hot melt adhesive for the top and bottom cover paper board for packaging heavy objects.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a hot melt adhesive for a heavy object packaging top and bottom cover paperboard, which is a high-strength hot melt adhesive and has high initial strength, high shear strength and high tension.

In order to achieve the purpose, the invention provides the following technical scheme: a hot melt adhesive for heavy object packaging top and bottom cover paper boards is characterized in that: the composite material comprises the following raw materials in parts by weight:

ethylene-vinyl acetate copolymer: 20 to 60 portions of

Softening point ≧ 100 ℃ petroleum resin mixture: 5 to 30 parts of

Rosin resin: 5 to 30 parts of

High crystalline fischer-tropsch wax mixture: 5 to 30 parts of

High nitrile copolymers: 18 portions of

Propenyl-modified alkylphenol ethoxylates: 35 portions of

Antioxidant: 0.1 to 1.0 portion

Polyester plasticizer: 16 to 18 portions of

The high nitrile copolymer is formed by copolymerizing an acrylate polymer and a styrene polymer; the allyl modified alkylphenol polyoxyethylene ether is 10 wt% of monodisperse hollow ZnO micron particle doped allyl modified alkylphenol polyoxyethylene ether.

Preferably, the hot melt adhesive comprises the following raw materials in parts by weight:

ethylene-vinyl acetate copolymer: 22 to 58 portions of

Softening point ≧ 100 ℃ petroleum resin mixture: 8 to 26 portions of

Rosin resin: 8 to 26 portions of

High crystalline fischer-tropsch wax mixture: 8 to 26 portions of

High nitrile copolymers: 18 portions of

Propenyl-modified alkylphenol ethoxylates: 35 portions of

Antioxidant: 0.1 to 1.0 portion

Polyester plasticizer: 16-18 parts.

Preferably, the hot melt adhesive comprises the following raw materials in parts by weight:

ethylene-vinyl acetate copolymer: 40 portions of

Softening point ≧ 100 ℃ petroleum resin mixture: 20 portions of

Rosin resin: 20 portions of

High crystalline fischer-tropsch wax mixture: 20 portions of

High nitrile copolymers: 18 portions of

Propenyl-modified alkylphenol ethoxylates: 35 portions of

Antioxidant: 0.5 portion

Polyester plasticizer: 16 portions of

Preferably, the hot melt adhesive for heavy article packaging top and bottom cover paper boards is characterized in that: the manufacturing method comprises the following steps:

s1, weighing materials: weighing the raw materials of the ethylene-vinyl acetate copolymer, petroleum resin mixture with the softening point being equal to or higher than 100 ℃, rosin resin, high-crystallization Fischer-Tropsch wax mixture, high-nitrile copolymer, propenyl modified alkylphenol polyoxyethylene ether, antioxidant and polyester plasticizer according to the claim 1;

s2, stirring and mixing: the weighed raw materials are poured into a container with a heating outer coil pipe in sequence, stirred by a stirrer to be fully mixed, and heated;

s3, extrusion forming: putting the fully mixed raw materials into a granulator, and granulating the mixed raw materials;

s4, sealing and storing: putting the granular colloidal particles into a sealed bag, and storing in a dry and ventilated manner.

Preferably, for S2, the speed of stirring is 1200-1400 revolutions per minute.

Preferably, for S2, during the stirring process, the inside of the reaction kettle is heated to raise the temperature, wherein the heating temperature is 120-150 ℃.

Preferably, for S2, the stirring time is not less than 0.6h during the stirring process.

The invention has the technical effects and advantages that:

the invention adopts a new formula, and through the compounding synergistic effect of the high nitrile copolymer, the propenyl modified alkylphenol polyoxyethylene ether, the high crystalline Fischer-Tropsch wax mixture and the ethylene-vinyl acetate copolymer, the invention can absorb kinetic energy by buffering action under the action of nailing impact and the like, can compensate by utilizing the nonuniformity in an adhesive interface, is easy to deform, can absorb internal energy by hollow particles, can be a viscous flowing process in deformation, can also be the accumulation of elastic resilience force, and has good stripping resistance and shearing resistance. The hot melt adhesive for the heavy object packaging top and bottom cover paperboard is a high-strength hot melt adhesive, has high initial strength, high shear strength and high tension, has the paperboard shear force and tension resistance consistent with the nailing effect when being adhered, and solves the problems of low production efficiency, high cost and large space occupation in the prior art.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.