CN100558538C - A kind of manufacture method that has the three-dimensional embossing pattern plastic containers - Google Patents

Abstract

A kind of manufacture method that has the three-dimensional embossing pattern plastic containers.Manufacture method of the present invention by molding, get join raw material, pressing mold, blowing impression, blowing flange, the operation such as cooling contraction etc. of bleeding forms, by this manufacture method, the surface that the present invention is produced has the plastic containers of three-dimensional embossing pattern, can not stay seam line again at product surface, make the surface smoothness of product good, attractive in appearance, hardness is high, can compare favourably with ceramic vessel.And compare with ceramic vessel, the present invention also has in light weight, not fragile or fall mashed, convenient transportation, characteristics such as cost of transportation is low and manufacturing process is simple, production efficiency is high, production cost is low.

Description

A kind of manufacture method that has the three-dimensional embossing pattern plastic containers

Technical field

The present invention relates to a kind of manufacture method of container, particularly a kind of manufacture method that has the three-dimensional embossing pattern plastic containers.

Background technology

At present, the manufacturing technique method that can produce the plastic containers that have three-dimensional embossing pattern in the plastics manufacturing mainly contains two kinds: a kind of is blow molding process or Shooting Technique, blowing or Shooting Technique are production technologies the most commonly used in the present plastics manufacturing industry, mainly there is following defective in its container products of producing: the seam line that a desire is divided into container the symmetry of two halves all can be left in the container products surface of producing, the seam line of this symmetry has destroyed the globality of embossing pattern to a great extent, the aesthetic property of continuity and entire container, it is comparatively single to make this process can only produce some patterns, the container products that enjoying value is lower, and it is comparatively complicated exquisite to manufacture out some patterns, the higher container products of enjoying value, thus the container products market efficiency of producing influenced greatly.And another kind is a rotational molding technique, though the variety of issue that the product that this explained hereafter is come out does not exist above-mentioned blowing or Shooting Technique to deposit, but its entire production process complexity, each life cycle of the product is very long, production efficiency is low, energy consumption is big, makes that to make the production cost that comes very high, causes that to make the product price too high, ordinary consumer is difficult to accept, and does not have what market prospects.

Summary of the invention

The objective of the invention is to solve above-mentioned existing problems, provide a kind of and can produce the band three-dimensional embossing pattern, and product surface does not have seam line, do not influence design and good looking appearance, and manufacturing process is simple, production efficiency is high, production cost is low, the hardness height, the manufacture method of the plastic containers that can compare favourably with ceramic vessel.

Technical scheme of the present invention is achieved in that

A kind of manufacture method that has the three-dimensional embossing pattern plastic containers, its characteristics are to comprise following method step:

(1) by size, moulding and design of patterns requirement make in advance respectively moulding that a bright and clean and integrated mould A of inner surface and a size be slightly larger than mould A identical and inner surface make the integrated mould B of recess patterns;

(2) get raw material by weight percentage: polyethylene grain 89.5%～97.5%, linear material 2%～10%, plasticizer 0.2%～0.5%, pigment 0.01%～0.03%, White Mineral Oil 0.01%～0.03%, and each raw material that will obtain are mixed, and stir, and obtain required mixed material;

(3) to put into temperature be the mixing emulsified material that 180 ℃～250 ℃ hot melt equipment plastify into the emulsification shape to the mixed material that mixing is obtained;

The mixing emulsified material that (4) will obtain is put into the mould A that heats to 140 ℃～160 ℃ and is suppressed, and takes out to obtain the container made-up article;

(5) the container made-up article that obtains put into heated to 80 ℃～120 ℃ mould B, apply blowing operation and blowing overturning process in regular turn after, then applying the cooling contraction process of bleeding and taking out, make required container.

The present invention is owing to adopt two mold in turn to produce the process of the plastic containers that have three-dimensional embossing pattern and do not have seam line through operations such as pressing mold, blowing, blowing flange, the cooling contractions of bleeding, the surface that the present invention is produced has the plastic containers of three-dimensional embossing pattern, can not stay seam line again at product surface, make the surface smoothness of product good, attractive in appearance, hardness is high, can compare favourably with ceramic vessel.And compare with ceramic vessel, the present invention also has in light weight, not fragile or fall mashed, convenient transportation, characteristics such as cost of transportation is low and manufacturing process is simple, production efficiency is high, production cost is low.

The present invention is further illustrated below in conjunction with embodiment:

The specific embodiment

A kind of manufacture method that has the three-dimensional embossing pattern plastic containers of the present invention, it comprises following method step:

(1) by size, moulding and design of patterns requirement make in advance respectively moulding that a bright and clean and integrated mould A of inner surface and a size be slightly larger than mould A identical and inner surface make the integrated mould B of recess patterns;

(2) get raw material by weight percentage: polyethylene grain 89.5%～97.5%, linear material 2%～10%, plasticizer 0.2%～0.5%, pigment 0.01%～0.03%, White Mineral Oil 0.01%～0.03%, and each raw material that will obtain are mixed, and stir, and obtain required mixed material;

(3) to put into temperature be the mixing emulsified material that 180 ℃～250 ℃ hot melt equipment plastify into the emulsification shape to the mixed material that mixing is obtained;

The mixing emulsified material that (4) will obtain is put into the mould A that heats to 140 ℃～160 ℃ and is suppressed, and takes out to obtain the container made-up article;

(5) the container made-up article that obtains put into heated to 80 ℃～120 ℃ mould B, apply blowing operation and blowing overturning process in regular turn after, then applying the cooling contraction process of bleeding and taking out, make required container.

According to the said method step, at first according to actual needs, design size, moulding and the pattern of product, and make the mould A integrated, that inner surface fineness is higher by designing requirement; With make that an inner surface that moulding is identical, size is slightly larger than mould A is made recess patterns and integrated mould B.In this step, mould A and mould B must be made of one moulding, rather than constitute by two hemihedrism die assemblies, be for fear of on the product surface of producing, leaving a die slot limit, guarantee to make the aesthetic property of product and the globality of layout and continuity are not constituted and destroy.Being slightly larger than mould A and mould B made, is to make the container made-up article that comes from mould A and can easily put into the processing that mould B carries out next step in order to make.Making the pattern that down of depression at the inner surface of mould B, is at container made-up article surface integrally formed three-dimensional embossing pattern behind blow molding process.Size and structure as for the pattern that caves in down can design according to the needs of actual production manufacturing and process.Then, get according to the described percentage by weight of step (2) and to join raw material, and will get join raw material stir, obtain the required composite material of next step.Its mix agitating procedure can with get join each raw material go in the mixing plant and finish by mixing plant.In this step, the polyethylene grain is a main raw material(s), and other material is an auxiliary element; Wherein adding 2%～10% linearity material, is for increase makes toughness of products, makes the product durability better, be difficult for falling mashed, break; The plasticizer of adding 0.2%～0.5% then is in order to improve material plasticity, to make its plasticizing effect better.As for the pigment that adds 0.01%～0.03%, be in order to make the product that produces that better color and luster be arranged, to meet the aesthetic needs of people.White Mineral Oil then is the diluent of pigment, and the White Mineral Oil of adding 0.01%～0.03% is for pigment can be mixed in the raw material more full and uniformly.After making required composite material, put it into operating temperature and be about the mixing emulsified material that plastifies into the emulsification shape in 180 ℃～250 ℃ hot melt equipment.And then will mix emulsified material and put into the mould A that heats to about 140 ℃～160 ℃ and suppress, take out and obtain the container made-up article.This step required time was about for tens seconds.Then and then, the container made-up article that obtains put into heats to about 80 ℃～120 ℃ mould B, apply blowing operation and blowing overturning process in regular turn after, then applying the cooling contraction process of bleeding and taking out, make required container.In the end in this step, the blowing operation is to arrive container made-up article surface for going up the depression pattern transfer on the mould B inner surface, thereby forms integrated three-dimensional embossing pattern at vessel surface.And the blowing overturning process be for make thicker hollow structure the vessel port limit of container made-up article and vessel port highly polished, attractive in appearance, make the container that makes look whole structure more coordinate, full, structural strength is better.After the blowing operation, and then apply the cooling contraction process of bleeding, be because in the container made-up article, inject gas during blowing with certain air pressure, and after the blowing, the three-dimensional embossing pattern of vessel surface is to be close on the mould B, must take out the gas in the container, container is slightly diminished, container could be taken out; And in pumping process, apply refrigerating work procedure simultaneously, and be to utilize the plastics principle of expanding with heat and contracting with cold, container is finalized the design.The required time of whole operation of finishing this step was about about 1～2 minute.In the actual production process of the present invention, all process steps from step (3) to step (5) can be finished by full-automatic plant equipment, produces a product required time about about 1～3 minute.The present invention has characteristics such as manufacturing process is simple, production efficiency is high, production cost is low

Claims (1)

1, a kind of manufacture method that has the three-dimensional embossing pattern plastic containers is characterized in that comprising following method step:

(1) by size, moulding and design of patterns requirement make in advance respectively moulding that a bright and clean and integrated mould A of inner surface and a size be slightly larger than mould A identical and inner surface make the integrated mould B of recess patterns;

(2) get raw material by weight percentage: polyethylene grain 89.5%～97.5%, linear material 2%～10%, plasticizer 0.2%～0.5%, pigment 0.01%～0.03%, White Mineral Oil 0.01%～0.03%, and each raw material that will obtain are mixed, and stir, and obtain required mixed material;

(3) to put into temperature be the mixing emulsified material that 180 ℃～250 ℃ hot melt equipment plastify into the emulsification shape to the mixed material that mixing is obtained;

The mixing emulsified material that (4) will obtain is put into the mould A that heats to 140 ℃～160 ℃ and is suppressed, and takes out to obtain the container made-up article;

(5) the container made-up article that obtains put into heated to 80 ℃～120 ℃ mould B, apply blowing operation and blowing overturning process in regular turn after, then applying the cooling contraction process of bleeding and taking out, make required container.