CN104059312A

CN104059312A - PVC (Polyvinyl Chloride) hard sheet for packaging solid medicine bubble cap

Info

Publication number: CN104059312A
Application number: CN201410216123.9A
Authority: CN
Inventors: 龚继润; 董敏; 崔西光; 李永平
Original assignee: Hebei Kai Peng Wrapping Material Co Ltd
Current assignee: Hebei Kai Peng Wrapping Material Co Ltd
Priority date: 2014-05-21
Filing date: 2014-05-21
Publication date: 2014-09-24

Abstract

The invention discloses a PVC hard sheet for packaging a solid medicine bubble cap. The PVC hard sheet comprises PVC resin and auxiliary material additives, wherein the auxiliary material additives include a methyl tin mercaptide heat stabilizer, an octyl tin stabilizer, an outer lubricating agent, an MBS (Methyl Methacrylate) impact modifier, a processing additive and an inner lubricating agent; the weight ratio of the PVC resin and the auxiliary material additives are as follows: 100 parts of the suspension-process PVC resin, 0.2-2 parts of the methyl tin mercaptide heat stabilizer, 0.2-2 parts of the octyl tin stabilizer, 0.1-1 part of the outer lubricating agent, 15 parts of the MBS impact modifier, 0.2-1.5 parts of the processing additive and 0.05-1 part of the inner lubricating agent. The PVC hard sheet has the advantages that PA20 (Processing Additive 20) is used as a production additive for replacing ACR (Acrylic Resin) so as to improve the product quality, alleviate pollution and provide convenience for operation; meanwhile, the octyl tin mercaptan is used for replacing the original methyl tin mercaptide so as to alleviate the pollution caused by heavy metals; the MBS resin is used as a reinforcing agent for improving the airtightness of the product.

Description

The hard sheet of PVC for solid medicine Blister Package

Technical field

The present invention relates to solid medicinal Blister Package field, relate in particular to the hard sheet of solid medicine Blister Package PVC.

Background technology

Medicine is used to such an extent that blister material is called for short PTP material, PTP material is the main PP sheet material that uses at present, PVC sheet material, PET sheet material, the domestic main PVC sheet material that uses at present, consumption accounts for more than 90%, so-called PVC sheet material, in polyvinyl chloride resin, to mix stablizer, the auxiliary materials such as softening agent and the hard sheet of PVC that supports, use Blister Package material, in the hard sheet production process of existing PVC, use ACR resin as auxiliary agent, but due to ACR resin and major ingredient intermiscibility bad, have and separate out, need to use in process of production softening agent, the phosphorus containing in softening agent, the meetings such as benzene impact quality product, and contaminate environment, in addition on the one hand, the hard sheet of existing PVC uses Methyl stannum mercaptide as stablizer, but in process of production, Methyl stannum mercaptide there will be readily oxidizable substance, and the phenomenon of heavy metals exceeding standard, affects quality product.

Summary of the invention

The technical problem to be solved in the present invention is to provide the hard sheet of a kind of solid medicine Blister Package PVC, by substituting ACR with PA20 as producing auxiliary agent, Improving The Quality of Products, reduce and pollute, handled easily uses octyl mercaptan tin to substitute former Methyl stannum mercaptide simultaneously, reduces heavy metal contamination, use MBS resin as toughener, improve product stopping property.

For solving the problems of the technologies described above, the technical solution used in the present invention is: the hard sheet of PVC for a kind of solid medicine Blister Package, it comprises polyvinyl chloride resin and auxiliary material auxiliary agent, described auxiliary material auxiliary agent comprises methyl mercaptan tin heat stabilizer, octyl tin stabilizer, external lubricant, MBS impact modifier, processing aid and internal lubricant, and the weight proportion of described polyvinyl chloride resin and auxiliary material auxiliary agent is:

Preferred: the weight proportion of described polyvinyl chloride resin and auxiliary material auxiliary agent is:

Beneficial effect of the present invention is as follows: by substituting ACR with PA20 as producing auxiliary agent, Improving The Quality of Products, reduces and pollute, handled easily uses octyl mercaptan tin to substitute former Methyl stannum mercaptide simultaneously, reduces heavy metal contamination, use MBS resin as toughener, improve product stopping property.

Embodiment

Below in conjunction with embodiment, the present invention is further detailed explanation.

In sum, the invention discloses the hard sheet of a kind of solid medicine Blister Package PVC, it comprises polyvinyl chloride resin and auxiliary material auxiliary agent, described auxiliary material auxiliary agent comprises methyl mercaptan tin heat stabilizer, octyl tin stabilizer, external lubricant, MBS impact modifier, processing aid and internal lubricant, and the weight proportion of described polyvinyl chloride resin and auxiliary material auxiliary agent is:

The optimal proportion of described polyvinyl chloride resin and auxiliary material auxiliary agent is:

The present invention is by substituting ACR as producing auxiliary agent with PA-20, Improving The Quality of Products, reduces and pollute, and handled easily uses octyl mercaptan tin to substitute former Methyl stannum mercaptide simultaneously, reduces heavy metal contamination, uses MBS resin as toughener, improves product stopping property.

Its production method comprises the following steps,

The first step: high-speed mixing, cold mixing, according to the formula of polyvinyl chloride resin and auxiliary material auxiliary agent, load weighted compound powder is added in homogenizer and is uniformly mixed, 800 revs/min of stirrer rotating speeds, stir 7-10 minute, in the time that material temperature reaches 110 ± 2 DEG C, transfer discharging after 400 revs/min of mixing of low speed to, drop temperature is 110 DEG C;

Second step: extrusion type, to be transported to extrusion shaping machine from the material of stirrer output, the heating and melting of process extruder barrel inner screw and screw rod shearing, mixing dual function, powdery closes the plasticizing that material is molten state by plasticizing and expects, extruder temperature is 120-160 DEG C, and barrel temperature is 140-180 DEG C;

The 3rd step: calendering, plasticizing material is sent in five roll calendars and carries out calendering formation, roller linear velocity is 15-25 m/min, five roll temperatures: 1# roller 180-190 DEG C; 2# roller 190-200 DEG C; 3# roller 195-205 DEG C; 4# roller 205-215 DEG C; 5# roller 195-205 DEG C, calendering formation sheet thickness is 0.15-0.6mm;

The 4th step: peel off, the sheet material of calendering formation is stripped to cooling roller and batches unit, through peeling off, cooling, be wound into coiled material, the general diameter of coiled material is 500mm, stripper roll temperature is 120-150 DEG C, chill-roll temperature is 100-35 DEG C;

The 5th step: cut, put up with by just sending into the light-operated cutting machine of computer and cut, cut into according to demand 50-800mm.

Production equipment used in the present invention comprises raw material hopper, kneader, vacuum feeder, cooling hopper, screw feeding machine, forcing machine, wave feeder, five-roller, the first cooling system, moulding cooling roller and thermostat, described raw material hopper is connected with kneader opening for feed by means of vacuum feeder, described kneader discharge port docks with cooling hopper opening for feed, described cooling hopper discharge port docks with the opening for feed of forcing machine top hopper by means of screw feeding machine, described extruder discharging mouth docks with five-roller opening for feed by means of waving feeder, five-roller discharge port docks the first cooling system, the first cooling system discharge end docking moulding cooling roller, on the hopper of described forcing machine top, have additional level gage, apparatus for separating metals is set up at hopper middle part, forcing machine top, described moulding cooling roller is water cooled rolls, dock thermostat with water cooled rolls cooling water inlet, described five-roller middle part is provided with raw material receptor, described moulding cooling roller tail end is provided with measuring apparatus and cutting device, and its opposed distal end retracting device.

In a concrete application process, after first powder being sieved, input kneader by vacuum feeder, high-speed kneading in 120 degrees Celsius of situations, add auxiliary ingredients, high speed discharge, to cooling hopper, is cooled to 45 degrees Celsius rapidly simultaneously, arrive forcing machine hopper by screw feeding machine again, shear plasticizing through forcing machine and extrude, be transported to by waving feeder that five-roller rolls, high-temperature molding, be transported to cooling roller by stripper roll, constant temperature is cooling, metering rolling, cut, interior bag, outsourcing, warehouse-in.

In a word, device used in the present invention, by setting up the first cooling system, slows down the speed of cooling of molding mass; Set up vacuum feeder and wave feeder, making kneader and five-roller material loading realize automatization, reducing labour intensity, enhancing productivity; Set up level gage, can Real Time Observation material level, automatic alarm system also can be set, realize the automatic detection of material level, prevent fracture, enhance productivity and yield rate; The present invention also, by the supporting thermostat of setting up on moulding cooling roller, guarantees not affect at the change of season forming quality of products; By set up raw material receptor on five-roller, the raw material that produce in can separation production process, avoid affecting product surface quality.

Claims

1. the hard sheet of PVC for solid medicine Blister Package, it is characterized in that: it comprises polyvinyl chloride resin and auxiliary material auxiliary agent, described auxiliary material auxiliary agent comprises methyl mercaptan tin heat stabilizer, octyl tin stabilizer, external lubricant, MBS impact modifier, processing aid and internal lubricant, and the weight proportion of described polyvinyl chloride resin and auxiliary material auxiliary agent is:

。

2. the hard sheet of PVC for solid medicine Blister Package according to claim 1, is characterized in that: the weight proportion of described polyvinyl chloride resin and auxiliary material auxiliary agent is:

。