CN109694569A - A kind of preparation method of soft pro-skin slippers - Google Patents

A kind of preparation method of soft pro-skin slippers Download PDF

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Publication number
CN109694569A
CN109694569A CN201811466041.4A CN201811466041A CN109694569A CN 109694569 A CN109694569 A CN 109694569A CN 201811466041 A CN201811466041 A CN 201811466041A CN 109694569 A CN109694569 A CN 109694569A
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parts
mold
skin
slippers
preparation
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CN201811466041.4A
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CN109694569B (en
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卢鑫
罗显发
丁思博
郑荣大
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Quanzhou Jinke Technology Co.,Ltd.
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Quanzhou Jinke Technology Testing Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/14—Footwear characterised by the material made of plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
    • B29D35/0018—Moulds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2447/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids

Abstract

The present invention relates to shoe-making process technical fields, a kind of preparation method of soft pro-skin slippers is provided, the shoes low melting point polyamide as made from the double-colored playshoes in interior is modified, improve material polarity, crystallization is reduced, and can be effectively controlled contraction, improves the compressive deformation performance of material, and rubber good hand touch, comfort are high；OBC is modified, improves the dimensional stability of material；Using environment-friendly type crosslinking agent, the volatile organic matters such as no acetophenone have environmental protection characteristic；And the preparation method mould therefor device heating of soft pro-skin slippers is rapidly, effectively promotes sole lines accuracy of repetition, demoulds rapidly, effectively promotes injection molding finished product rate and production efficiency, and the quantitatively manufacturing is suitble to use.

Description

A kind of preparation method of soft pro-skin slippers
Technical field
The present invention relates to shoe-making process technical field, in particular to a kind of preparation method of soft pro-skin slippers.
Background technique
Present improvement of living standard therewith, people increasingly pursue comfortable material enjoyment.And shoes are made for people's lives In essential article, be increasingly valued by people.Comfortably, the shoes of light, wear-resisting, high-elastic, low permanent compression Increasingly pursued by people.Natural rubber of the sole material since most, followed by PVC synthetic leather and synthetic rubber, after Have EVA, PU, SBS, TPU and their corresponding foamed materials etc. again.But these materials tend not to meet people couple The requirement of shoes.These types of material is carefully analyzed, it can be seen that natural rubber lower temperature resistance is poor, taste is heavy, texture is uncomfortable； PVC synthetic leather hardening at subcritical temerature, comfort be bad, not wear-resisting, poor flexibility；Synthetic rubber such as vulcanized rubber, taste is too heavy, density Greatly；EVA material wearability is not good enough, compressive deformation is big；PU synthetic leather wearability is excellent, light, but relative price is high；SBS is resistance to Mill property needs to improve, and compressive deformation is big, and weatherability is poor；TPU material price is expensive, and hardness is big, uncomfortable.For this purpose, developing one The sole that kind has the mechanical performances such as high resiliency, high abrasion, high-flexibility, low compression deformation, weather-proof, low temperature resistant, light splendid Material is needed for generation is.
Moreover, common single injection-molded in existing shoe-making process, is that first mold is put into heater to carry out pre-add Heat, reaches to be put into reheat in mold by sole material after suitable temperature and forms, and during the shoe-making process, mold is heated thermally conductive Slowly, the heating speed of mold is slow, greatly reduces shoemaking production efficiency；And during existing shoemaking, while to upper/lower die Vacuumize process is carried out simultaneously, vacuumizes efficiency to increase, but upper and lower mould vacuumizes so that vacuumizing flow direction in mold simultaneously Unevenly, vacuumizing effect declines, and it is unstable to be pressurized, and gained sole lines is not clear enough, influences the quality of production.
In addition, since die cavity needs to keep high pressure in moulding process, upper and lower mold exists during one-pass molding High pressure effect pushes closely tight, so therefore not easy mold release is usually provided with mode hopping device structure on mold, mode hopping device is set In on shoe tree, when upper and lower mould molds, mode hopping device can be caught in lower die, after the completion of vulcanization, when upper and lower mould separation is opened, and lower die pair The blocking effect of mode hopping device is so that shoe tree is pulled by lower die, so that shoe tree and upper mold separate simultaneously, it is de- to be completed at the same time shoe tree The effect of mould is still used for a long time, and mode hopping device is easy to loosen, the blocking declines between lower die and mode hopping device, it may appear that de- Mould failure phenomenon causes shoe tree to be stuck in the phenomenon that upper mold is interior, finished product is submitted an expense account, and mode hopping device needs to be replaced frequently, and accessory is at high cost, increases Production is added to bear.
Summary of the invention
Therefore, for above-mentioned problem, the present invention proposes a kind of preparation method of soft pro-skin slippers, passes through the interior Shoes low melting point polyamide made from double-colored playshoes is modified, improves material polarity, reduces crystallization, and can be effectively controlled contraction, The compressive deformation performance of material, and rubber good hand touch are improved, comfort is high；OBC is modified, improves the dimensional stability of material Energy；Using environment-friendly type crosslinking agent, the volatile organic matters such as no acetophenone have environmental protection characteristic；And the system of soft pro-skin slippers The heating of Preparation Method mould therefor device rapidly, effectively promotes sole lines accuracy of repetition, demoulds rapidly, effectively promotion injection molding Yield rate and production efficiency are suitble to quantitatively manufacture use.
To realize above-mentioned technical problem, the solution that the present invention takes are as follows: a kind of preparation method of soft pro-skin slippers, Include the following steps:
Step 1 prepares polyamide compound: by weight, by 45 parts of low melting point polyamide, hemp stalk core superfine powder 12 Part, 18 parts, OBC25 parts and 1.5 parts of zinc stearate of EVA resin, premix 2-3 minutes in super mixer, then by premix By double screw extruder, melting extrusion, cooling granulation, obtain polyamide compound at 95-125 DEG C；
Wherein, the DSC fusing point of low melting point polyamide is within the scope of 85 DEG C to 110 DEG C；
Step 2 prepares plastics rice: the plastics rice is prepared by following components by the raw material of following parts by weight:
First other raw materials other than foaming agent and crosslinking agent are mixed and carry out mixing, stirring 5 times, stirring temperature point It is not 80 DEG C, 85 DEG C, 89 DEG C, 93 DEG C, 97 DEG C；Then foaming agent and crosslinking agent is added, continues stirring 3 times, stirring temperature point It is not 101 DEG C, 105 DEG C, 108 DEG C；Temperature reaches 110 DEG C, batch turning；Again through mill, granulation, cooling, packaging, plastics rice is obtained；
Plastics rice is poured into charging basket by step 3, is added by automatic material-absorbing through expects pipe heating using a Jet forming machine Pressure, expects pipe temperature is respectively 85 DEG C, 88 DEG C, 91 DEG C, 94 DEG C, shooting pressure 70bar；175 DEG C of mold temperature of setting, vulcanization time 230-250 seconds；Vulcanization terminates, and opens mold, and slippers are taken out in shoe tree pop-up, and fixed through baking oven sizing, the sizing of pressure last carving, household freezer Type obtains the soft pro-skin slippers.
Further, polyamide compound described in step 1 by following components by following parts by weight raw material preparation and At: 45 parts of low melting point polyamide, 12 parts of hemp stalk core superfine powder, 18 parts, OBC907725 parts of EVA resin and zinc stearate 1.5 Part；Wherein, the DSC fusing point of low melting point polyamide is preferably 95 DEG C to 105 DEG C ranges.
Further, plastics rice described in step 2 are prepared by following components by the raw material of following parts by weight:
Further, a Jet forming machine includes mold rack, upper mold, lower mold, heating device, vacuumizes Device and control exchange；
The upper mold includes upper mold seat, the upper cores being fixed on upper mold seat and shoe tree, is opened in the upper cores Equipped with upper of a shoe die cavity, the shoe tree is liftable to be placed in the upper of a shoe die cavity, and the upper cores are equipped with connection upper of a shoe die cavity Upper sprue；
The lower mold includes lower mold base and the lower mode that is fixed on lower mold base, and the lower mode offers sole Die cavity, the lower mode are equipped with the lower sprue of connection sole die cavity；
The mold rack is equipped with positioning link bar, and the upper mold seat, lower mold base are arranged in the positioning link bar On, the upper mold seat is located at the top of lower mold base；The mold rack is equipped with pressing cylinder, the execution of the pressing cylinder End is connect with the upper mold seat, and the pressing cylinder can push upper mold seat to move up and down along the positioning link bar；
The heating device includes heating plate, iron plate, thermocouple and thermal control plate, and the heating plate, thermocouple pass through Iron plate be fixed on the upper cores, lower mode side wall on, the thermocouple is connect with thermal control plate, and the heating plate is controlled In thermal control plate；
The actuating station of the vacuum evacuation device is connected with the sole die cavity of the lower mold；
The pressing cylinder, heating device, evacuator are controlled by control exchange.
Further, the top position that the upper cores are located at upper of a shoe die cavity is equipped with flexible cavity；It is set on the shoe tree There is the telescopic rod for being arranged in flexible cavity that can be moved up and down, is located at telescopic rod in flexible cavity and is equipped with connecting plate；It is described Upper mold seat is equipped with telescopic cylinder, and the actuating station of the telescopic cylinder is worn in flexible cavity and with the connecting plate and connect； The telescopic cylinder is controlled by control exchange.
By using preceding solution, the beneficial effects of the present invention are: the soft pro-skin slippers designed as described above Preparation method has the advantage that compared with the existing technology
1, low melting point polyamide is modified, improves material polarity, reduces crystallization, and can be effectively controlled contraction, improves material Compressive deformation performance, and rubber good hand touch, comfort are high；OBC is modified, improves the dimensional stability of material；Using ring Guarantor's type crosslinking agent, the volatile organic matters such as no acetophenone have environmental protection characteristic.
2, the positioning link bar in the mold rack of a Jet forming machine used can provide accurately between upper/lower die Positioning calibration, realize the accurate molding of upper/lower die；Heating plate is directly arranged on the side wall of upper and lower mode, i.e., directly to shoe cavity It is heated, promotes the mold rate of heat addition, promote mold working efficiency；Vacuum evacuation device is only connected with sole die cavity, then closes When mould, the flow direction that vacuum evacuation device forms from top to bottom the shoe cavity that upper of a shoe die cavity, shoe tree and sole die cavity are formed is vacuumized, and is taken out Vacuum direction is unidirectionally consistent, promotes laminate pressure from top to bottom between injection material and shoe cavity, is conducive to the clear of shoe sole print The duplication of the layer stereo decorative pattern of clear duplication, especially sole；Shoe tree demoulding is carried out using cylinder, it is de- can effectively to promote shoe tree Mould rate is not necessarily to extra external accessory (mode hopping device), omits the loss of extra external accessory, omits being fabricated to for external accessory This；The control exchange is used for integrated control, using integrated control mode, promotes mold auto-control degree, promotes production Efficiency.Therefore, the preparation method of the soft pro-skin slippers reduces vulcanization time, and deep trench decorative pattern (depth is greater than 5mm) Print effect is excellent；Without shutter, consumables cost is reduced；It is suitble to quantitatively manufacture and uses, it is practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 Jet forming machines of inventive embodiments.
Fig. 2 is the partial structure diagram of the upper mold of 1 Jet forming machines of the embodiment of the present invention.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment 1
A kind of preparation method of soft pro-skin slippers, includes the following steps:
Step 1 prepares polyamide compound: by weight, by 45 parts of low melting point polyamide (98 DEG C of DSC fusing point), the Chinese 12 parts, EVA7470M18 parts, OBC907725 parts and 1.5 parts of zinc stearate of waste of flax core superfine powder, 3 are premixed in super mixer Minute, then by premix by double screw extruder, melting extrusion, cooling granulation at 115 DEG C obtain polyamide mixing Object.
Step 2 prepares plastics rice: the plastics rice is prepared by following components by the raw material of following parts by weight:
First other raw materials other than foaming agent and crosslinking agent are mixed and carry out mixing, stirring 5 times, stirring temperature point It is not 80 DEG C, 85 DEG C, 89 DEG C, 93 DEG C, 97 DEG C；Then foaming agent and crosslinking agent is added, continues stirring 3 times, stirring temperature point It is not 101 DEG C, 105 DEG C, 108 DEG C；Temperature reaches 110 DEG C, batch turning；Again through mill, granulation, cooling, packaging, plastics rice is obtained.
Step 3: plastics rice being poured into charging basket, is added by automatic material-absorbing through expects pipe heating using a Jet forming machine Pressure, expects pipe temperature is respectively 85 DEG C, 88 DEG C, 91 DEG C, 94 DEG C, shooting pressure 70bar；175 DEG C of mold temperature, vulcanization time 235 Second；Vulcanization terminates, and opens mold, and shoe tree pop-up takes out slippers, and is formed through baking oven sizing, the sizing of pressure last carving, household freezer, obtains Soft pro-skin slippers.
Wherein, with reference to Fig. 1-2, a Jet forming machine includes mold rack 1, upper mold 2, lower mold 3, heating device 4, vacuum evacuation device 5 and control exchange 6；
The upper mold 2 includes upper mold seat 21, the upper cores 22 being fixed on upper mold seat and shoe tree 23, the upper mold Upper of a shoe die cavity is offered in benevolence 22, the shoe tree 23 is liftable to be placed in the upper of a shoe die cavity, and the upper cores 22 are equipped with It is connected to the upper sprue of upper of a shoe die cavity；The top position that the upper cores 22 are located at upper of a shoe die cavity is equipped with flexible cavity 24；It is described Shoe tree 23 is equipped with the telescopic rod 25 for being arranged in flexible cavity that can be moved up and down, and sets on telescopic rod 25 in flexible cavity There is connecting plate 26；The upper mold seat 21 is equipped with telescopic cylinder 27, and the actuating station of the telescopic cylinder 27 extends to flexible cavity It is interior and connect with the connecting plate 26；
The lower mold 3 includes the lower lower mode 32 mold base 31 and be fixed on lower mold base, and the lower mode 32 is opened Equipped with sole die cavity, the lower mode 32 is equipped with the lower sprue of connection sole die cavity；
The mold rack 1 is equipped with positioning link bar 11, and the upper mold seat 21, lower mold base 31 are arranged in the positioning In connecting rod 11, the upper mold seat 21 is located at the top of lower mold base 31；The mold rack 1 is equipped with pressing cylinder 12, institute State pressing cylinder 12 actuating station connect with the upper mold seat 21, the pressing cylinder 12 can push upper mold seat 21 along The positioning link bar 11 moves up and down；
The heating device 4 includes heating plate, iron plate, thermocouple and thermal control plate, and the heating plate, thermocouple pass through Iron plate be fixed on the upper cores, lower mode side wall on, the thermocouple is connect with thermal control plate, and the heating plate is controlled In thermal control plate；
The actuating station of the vacuum evacuation device 5 is connected with the sole die cavity of the lower mold；
The telescopic cylinder 27, pressing cylinder 12, heating device 4, evacuator 5 are controlled by control exchange 6.
The above-mentioned soft pro-skin slippers being prepared, sole specific gravity 0.19g/cm3, the wear-resisting 162mm of hardness 35C, DIN3, ruler Very little contraction 1.0%, compressive deformation 48%, 0.65 wet type 0.47 of on-slip coefficient (smooth) dry type.
Embodiment 2
The preparation method of soft pro-skin slippers described in embodiment 2 is identical as the preparation method in embodiment 1, different It is: in embodiment 2
In step 1, the DSC fusing point of low melting point polyamide is 85 DEG C, and twin-screw extrusion temperature is 95 DEG C.
In step 2,17 parts of EVA7470M, liquid 1,12 parts of 2- polybutadiene.
The above-mentioned soft pro-skin slippers being prepared, sole specific gravity 0.19g/cm3, the wear-resisting 174mm of hardness 34C, DIN3, ruler Very little contraction 1.4%, compressive deformation 53%, 0.70 wet type 0.49 of on-slip coefficient (smooth) dry type.
Embodiment 3:
The preparation method of soft pro-skin slippers described in embodiment 3 is identical as the preparation method in embodiment 1, different It is: in embodiment 3
In step 1, the DSC fusing point of low melting point polyamide is 110 DEG C, and twin-screw extrusion temperature is 125 DEG C.
In step 2,6 parts of EVA7470M, 14 parts of EVA 40W, liquid 1,8 parts of 2- polybutadiene, 2.8 parts of blowing agent AC, 2.2 parts of crosslinking agent V-40.
In step 3, vulcanization time 250 seconds.
The above-mentioned soft pro-skin slippers being prepared, sole specific gravity 0.20g/cm3, the wear-resisting 183mm of hardness 37C, DIN3, ruler Very little contraction 1.7%, compressive deformation 50%, 0.59 wet type 0.40 of on-slip coefficient (smooth) dry type.
Comparative example 1
The preparation method of soft pro-skin slippers described in comparative example 1 is identical as the preparation method in embodiment 1, different It is: in comparative example 1
In step 1,0 part of low melting point polyamide.
The above-mentioned soft pro-skin slippers being prepared, sole specific gravity 0.21g/cm3, the wear-resisting 209mm of hardness 34C, DIN3, ruler Very little contraction 2.8%, compressive deformation 81%, 0.50 wet type 0.37 of on-slip coefficient (smooth) dry type.
Comparative example 2
The preparation method of soft pro-skin slippers described in comparative example 2 is identical as the preparation method in embodiment 1, different It is: in a Jet forming machine used in comparative example 2 heating device is not installed, but traditional die bottom plate is taken to add Heat makes mold heat up using heattransfer effect；The vacuum evacuation device of a used Jet forming machine is by traditional upper in comparative example 2 Mold and lower mold while underpressure pattern；A Jet forming machine used in comparative example 2 does not install telescopic cylinder and carries out shoe tree Demoulding, but use traditional mode hopping device.
When finding 175 DEG C of curing temperature, vulcanization time 235 seconds in 2 experimentation of comparative example, sole crosslinking not exclusively, is led to After crossing test of many times, vulcanization time 390 seconds, completely, lines was clear for sole crosslinking.
The above-mentioned soft pro-skin slippers being prepared of comparative example 2, sole specific gravity 0.19g/cm3, hardness 37C, DIN it is wear-resisting 189mm3, dimensional contraction 1.6%, compressive deformation 53%, 0.64 wet type 0.45 of on-slip coefficient (smooth) dry type.
After the data preparation of above-described embodiment 1-3 and comparative example 1-2, obtain as (note: hardness uses GS-701N to the following table 1 Hardometer test, dimensional contraction rate are tested for 4 hours according to 50 degree, and DIN is wear-resisting to be tested according to GB/T 9867:2001, compressive deformation Test reference HG/T2876 (temperature 50 C, 6 hours time, compression factor 50%), on-slip coefficient is surveyed according to TM144:2011 Examination.)
Table 1, experimental data contrast table
The preparation method of the soft pro-skin slippers designed in summary improves the comprehensive performance of material, and shrinking reduces, is resistance to Mill increases, hardness is lower；It is heated in preparation process rapidly, the duplication of sole lines is clear, and improving production efficiency and final product quality are fitted It closes quantitatively to manufacture and use, it is practical.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.

Claims (5)

1. a kind of preparation method of soft pro-skin slippers, which comprises the steps of:
Step 1 prepares polyamide compound: by weight, by 45 parts of low melting point polyamide, 12 parts of hemp stalk core superfine powder, 18 parts of EVA resin, 25 parts of OBC and 1.5 parts of zinc stearate premix 2-3 minutes in super mixer, then lead to premix Double screw extruder is crossed, melting extrusion, cooling granulation, obtain polyamide compound at 95-125 DEG C；
Wherein, the DSC fusing point of low melting point polyamide is within the scope of 85 DEG C to 110 DEG C；
Step 2 prepares plastics rice: the plastics rice is prepared by following components by the raw material of following parts by weight:
First other raw materials other than foaming agent and crosslinking agent are mixed and carry out mixing, stirring 5 times, stirring temperature is respectively 80℃,85℃,89℃,93℃,97℃；Then foaming agent and crosslinking agent is added, continues stirring 3 times, stirring temperature is respectively 101℃,105℃,108℃；Temperature reaches 110 DEG C, batch turning；Again through mill, granulation, cooling, packaging, plastics rice is obtained；
Plastics rice is poured into charging basket by step 3, is heated and is pressurizeed through expects pipe by automatic material-absorbing using a Jet forming machine, material Tube temperature degree is respectively 85 DEG C, 88 DEG C, 91 DEG C, 94 DEG C, shooting pressure 70bar；175 DEG C of mold temperature of setting, vulcanization time 230- 250 seconds；Vulcanization terminates, and opens mold, and shoe tree pop-up takes out slippers, and is formed through baking oven sizing, the sizing of pressure last carving, household freezer, obtains To the soft pro-skin slippers.
2. the preparation method of soft pro-skin slippers according to claim 1, which is characterized in that polyamide described in step 1 Mixture is prepared by following components by the raw material of following parts by weight: 45 parts of low melting point polyamide, hemp stalk core superfine powder 12 Part, 18 parts of EVA resin, 907725 parts of OBC and 1.5 parts of zinc stearate；Wherein, the DSC fusing point of low melting point polyamide is preferably 95 DEG C to 105 DEG C of ranges.
3. the preparation method of soft pro-skin slippers according to claim 1, which is characterized in that plastics rice described in step 2 It is prepared by following components by the raw material of following parts by weight:
4. the preparation method of soft pro-skin slippers according to claim 1, it is characterised in that: a Jet forming machine Including mold rack, upper mold, lower mold, heating device, vacuum evacuation device and control exchange；
The upper mold includes upper mold seat, the upper cores being fixed on upper mold seat and shoe tree, is offered in the upper cores Upper of a shoe die cavity, the shoe tree is liftable to be placed in the upper of a shoe die cavity, and the upper cores are equipped with the upper of connection upper of a shoe die cavity Sprue；
The lower mold includes lower mold base and the lower mode that is fixed on lower mold base, and the lower mode offers sole mould Chamber, the lower mode are equipped with the lower sprue of connection sole die cavity；
The mold rack is equipped with positioning link bar, and the upper mold seat, lower mold base are arranged on the positioning link bar, institute State the top that upper mold seat is located at lower mold base；The mold rack be equipped with pressing cylinder, it is described pressing cylinder actuating station with The upper mold seat connection, the pressing cylinder can push upper mold seat to move up and down along the positioning link bar；
The heating device includes heating plate, iron plate, thermocouple and thermal control plate, and the heating plate, thermocouple pass through iron plate Be fixed on the upper cores, lower mode side wall on, the thermocouple is connect with thermal control plate, the heating plate be controlled by plus Thermal control plate；
The actuating station of the vacuum evacuation device is connected with the sole die cavity of the lower mold；
The pressing cylinder, heating device, evacuator are controlled by control exchange.
5. the preparation method of soft pro-skin slippers according to claim 4, it is characterised in that: the upper cores are located at upper of a shoe The top position of die cavity is equipped with flexible cavity；The shoe tree is arranged in the flexible of flexible cavity equipped with what can be moved up and down Bar is located at telescopic rod in flexible cavity and is equipped with connecting plate；The upper mold seat is equipped with telescopic cylinder, the telescopic cylinder Actuating station is worn in flexible cavity and with the connecting plate and is connect；The telescopic cylinder is controlled by control exchange.
CN201811466041.4A 2018-12-03 2018-12-03 Preparation method of soft skin-friendly slippers Active CN109694569B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501348A (en) * 2018-12-03 2019-03-22 茂泰(福建)鞋材有限公司 A kind of novel die device

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KR100856897B1 (en) * 2007-12-27 2008-09-05 주식회사 컴테크케미칼 Injection molding apparatus for single-piece shoes with varied color, hardness or specific gravity using thermoplastic resine and thereby shoes
CN104277316B (en) * 2014-08-07 2017-03-22 茂泰(福建)鞋材有限公司 Antiskid EVA sole and preparation method thereof
CN106832470B (en) * 2017-01-06 2018-10-02 茂泰(福建)鞋材有限公司 A kind of anti-slip rubber sole and preparation method thereof
CN108623892A (en) * 2018-04-09 2018-10-09 广东国立科技股份有限公司 A kind of EVA foam shoe material and preparation method thereof that heat resistanceheat resistant is shunk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109501348A (en) * 2018-12-03 2019-03-22 茂泰(福建)鞋材有限公司 A kind of novel die device

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