CN111011988A - Food-grade children sole and preparation process thereof - Google Patents
Food-grade children sole and preparation process thereof Download PDFInfo
- Publication number
- CN111011988A CN111011988A CN201911154710.9A CN201911154710A CN111011988A CN 111011988 A CN111011988 A CN 111011988A CN 201911154710 A CN201911154710 A CN 201911154710A CN 111011988 A CN111011988 A CN 111011988A
- Authority
- CN
- China
- Prior art keywords
- sole
- sole body
- groove
- die
- food
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/181—Resiliency achieved by the structure of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
-
- 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
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
Abstract
The invention relates to the technical field of soles, in particular to a food-grade children sole and a preparation process thereof, which mainly solve the problems of poor walking dynamic comfort and low safety of the children sole in the prior art, and comprises a sole body, wherein the periphery of the upper surface of the sole body extends upwards, a first groove is defined by the extending part and the upper surface of the sole body together, the bottom surface of the first groove and the side surface thereof form a fillet, the cross section of the bottom surface of the first groove, which is positioned in a sole area along the transverse direction, is arc-shaped, a toe guard is arranged along the longitudinal direction of the sole body and at the upper end of the extending part of the sole area, the toe guard is bent upwards and extends backwards, a first connecting part and a second connecting part are sequentially and alternately arranged around the outer side surface of the sole body and the periphery extending to the bottom surface of the sole body, a bulge is arranged around the bottom surface, and anti-slip strips are arranged in the annular groove at intervals along the longitudinal direction, and a drainage groove is formed between every two adjacent anti-slip strips.
Description
Technical Field
The invention relates to the technical field of soles, in particular to a food-grade children sole and a preparation process thereof.
Background
Most of the existing children shoes are designed for improving the interest of children or for correcting the walking posture of children and assisting the walking, such as the shoe soles of Chinese patent application numbers: 201610014146.0, or Chinese patent application No.: 201710651800.3, the sole of the shoe is a special function designed by the function, and the comfort of the sole is mostly realized by reducing the hardness of the sole. However, studies show that the sole with higher hardness is beneficial to the foot development of children, and under the condition of hardness improvement, the cushioning performance of the sole and the bending performance of the arch part during walking are both greatly reduced, so that the fatigue of the foot is sharply increased, the walking is not facilitated, and the shoes are frequently taken off and bitten by children at lower ages in the stage of long teeth, and the element content of the sole is not considered in the existing shoes, so that the content of some heavy metals is high, and the safety is poor.
Therefore, the development of a child shoe sole with high walking dynamic comfort and high safety is needed.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides a food-grade children sole and a preparation process thereof, and mainly solves the problems of poor walking dynamic comfort and low safety of the children sole in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a food-grade children sole comprises a sole body, wherein the sole body is defined to extend along the length direction of the sole body into a longitudinal direction and extend along the width direction of the sole body into a transverse direction, the sole body sequentially comprises a sole area, an arch area and a heel area along the longitudinal direction, the periphery of the upper surface of the sole body extends upwards, the extending part and the side surface of the sole body form a sole side wall together, the extending part and the upper surface of the sole body define a first groove together, the bottom surface of the first groove and the side surface of the first groove form a fillet, the cross section of the bottom surface of the first groove, which is positioned in the sole area along the transverse direction, is arc-shaped, a toe guard for preventing kicking is arranged along the longitudinal direction of the sole body and is bent upwards and extends backwards at the upper end of the extending part positioned in the sole area, and the toe guard and the sole body form a cavity capable of containing toe, the first connecting parts and the second connecting parts are sequentially and alternately arranged around the outer side surface of the sole body and the periphery extending to the bottom surface of the sole body, the first connecting parts comprise first transverse strips protruding along the upper end of the outer side surface of the sole body and first longitudinal strips extending downwards from two free ends of the first transverse strips, the first transverse strips and the two second longitudinal strips jointly define a first accommodating groove, the second connecting parts comprise second transverse strips protruding along the lower end of the outer side surface of the sole body and second longitudinal strips extending downwards from two free ends of the second transverse strips, the second transverse strips and the two second longitudinal strips jointly define a second accommodating groove, two adjacent first longitudinal strips on two adjacent first connecting parts are embedded into the second accommodating groove, and two adjacent second longitudinal strips on two adjacent second connecting parts are immersed into the first accommodating groove, the shoe sole comprises a sole body, and is characterized in that strip grooves are formed between every two adjacent first connecting portions, between every two adjacent second connecting portions and between every two first connecting portions and between every two second connecting portions, and are arranged at intervals, bulges are arranged around the bottom surface of the sole body, annular grooves are formed between every two bulges and every two second transverse strips, anti-slip strips are arranged in the annular grooves and are arranged at intervals along the longitudinal direction, water drainage grooves are formed between every two adjacent anti-slip strips, each anti-slip strip comprises a first portion and a second portion which are alternately connected end to end, and the included angle between the first portion and the second portion ranges from 30 degrees to 60 degrees.
Furthermore, the bottom surface of the first groove is located the arch of foot district and the heel district and all is equipped with the second groove of undercut, the depth dimension of second groove increases from arch of foot portion toward heel portion in proper order, and the depth dimension at second groove middle part is less than the depth dimension of its horizontal both sides, it makes progress the arch respectively to lie in arch of foot portion and heel portion in the second groove and forms first check strip and second check strip, separates twelve first check cavities and four second check cavities of department respectively with arch of foot portion and heel portion.
Furthermore, the connection part of the extension part and the toe guard part is concave inwards to form a buffer groove.
Furthermore, the outer surface of the toe guard portion is provided with a plurality of first raised lines side by side along the longitudinal direction, and the outer surface of the extension portion is provided with a plurality of second protrusions side by side.
Furthermore, the middle part of the bottom surface of the sole body is provided with an identification area for showing a product trademark.
A preparation process of food-grade children soles comprises the following steps:
a. selecting expanded thermoplastic elastomer, stearic acid, zinc stearate, filling material, wear-resisting agent, foaming agent and bridging agent material;
b. the method comprises the following steps of putting an expanded thermoplastic elastomer, a filler, stearic acid, zinc stearate and an abrasion-resistant agent into a mixing mill for first mixing, putting a foaming agent and a bridging agent into the mixing mill, stirring for five minutes, carrying out second mixing, third mixing and fourth mixing, keeping the temperature in the mixing mill at 60-70 ℃, and carrying out thin passing and granulation after mixing is finished;
c. b, putting the product prepared in the step b into a stirrer for stirring and drying;
d. c, injection molding the product prepared in the step c, and setting the temperature of an injection molding die to be 170-180 ℃;
e. and d, putting the product prepared in the step d into an oven for drying.
Furthermore, the expanded thermoplastic elastomer is prepared by pressurizing and heating 70-80% of thermoplastic elastomer to form supercritical fluid, adding 20-30% of polyurethane, mixing, penetrating into thermoplastic raw material, and heating and depressurizing to form a polymer phase system.
Further, the injection molding die comprises a first upper die, a second upper die and a lower die, wherein the first upper die is arranged on the left side of the second upper die, the lower die is arranged on the lower side of the first upper die and the lower side of the second upper die, the lower die and the first upper die are matched to form a first die cavity, the lower die and the second upper die are matched to form a second die cavity, the first die cavity and the second die cavity are communicated and define a die cavity with the same shape as the sole, a mounting groove is formed in the left side surface of the second upper die in an inwards concave mode, a top block and a sliding block are arranged in the mounting groove, a spring is arranged between the sliding block and the second upper die, the inner end surface of the sliding block is arranged into an inclined surface, a top rod is arranged in the mounting groove, the lower end of.
By adopting the technical scheme, the invention has the beneficial effects that: this food level children's sole and preparation technology, extension through setting up, and the bottom surface of the first recess that extension and sole body upper surface bound out jointly forms the radius angle rather than the side, the bottom surface of first recess lies in the sole district and is the arc form along its transverse direction's cross section simultaneously, can play the side direction when making the sole of foot trample, and horizontal extension and bending performance, thereby improve the travelling comfort of trampling the atress, and the bradyseism nature in the sole district of sole body obtains certain promotion, combine the arch that the sole body set up simultaneously, the first portion and the second portion of antislip strip, and the contained angle between the first portion of design and the second portion is 30 ~ 60, make the bending performance of sole body good, the water of the clearance between the antislip strip that can be better when walking, improve antislip performance, the lateral surface of sole body and the week edge that extends to sole body bottom surface have set gradually first connecting portion and the second along alternately The two connecting parts ensure that the side wall has good bending property, the lateral supporting force of the connecting parts can be improved under the condition that the side wall is designed to be thinner, the weight of the sole body is reduced, and the dynamic comfort of walking of the sole body is greatly improved; the arch part and the heel part in the second groove are combined to respectively bulge upwards to form a first lattice strip and a second lattice strip, the arch part and the heel part are respectively separated into twelve first lattice cavities and four second lattice cavities, the shock absorption of the heel part and the bending property of the arch are improved, the quality of the sole body is reduced, the human foot engineering mechanics is met, and the dynamic comfort of the sole body is improved; furthermore, the toe guard portion plays a role in toe guard and kicking prevention, and a buffer groove is formed in the connection part of the extension portion and the toe guard portion in a concave mode, so that the connection part of the extension portion and the toe guard portion is bent well, feet can be attached well in the walking process, and comfort is high; furthermore, the children sole is prepared through the process flow of the application file, the process is simple and convenient, the processing benefit is high, the hardness of the prepared sole can be higher than 50, the walking dynamic comfort is high, the environmental protection performance is strong, the heavy metal, benzene and other elements which are not beneficial to the health of the body are less, and the food grade is achieved.
Drawings
FIG. 1 is a schematic top view of a sole body according to an embodiment of the present invention;
FIG. 2 is a schematic right side view of the sole body in an embodiment of the invention;
FIG. 3 is a bottom view of the sole body in accordance with an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of an injection molding die according to an embodiment of the present invention;
FIG. 5 shows Pb/Cd/Hg/Cr8+a/PBBs/PBDEs test flow chart;
figure 6 is a flow chart of the Phthalates test.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
The embodiment of the invention is as follows:
referring to fig. 1, 2 and 3, a food-grade children shoe sole comprises a shoe sole body 1, a longitudinal direction is defined as extending along the length direction of the shoe sole body 1, a transverse direction is defined as extending along the width direction of the shoe sole body, the shoe sole body 1 sequentially comprises a sole region 11, an arch region 12 and a heel region 13 along the longitudinal direction, the upper surface of the shoe sole body 1 circumferentially extends upward to form an extension portion 2, the extension portion 2 and the side surface of the shoe sole body 1 jointly form a shoe sole side wall 3, the extension portion 2 and the upper surface of the shoe sole body 1 jointly define a first groove 4, the bottom surface of the first groove 4 and the side surface thereof form a fillet, the cross section of the bottom surface of the first groove 4, which is located in the sole region 11 along the transverse direction, is arc-shaped, a toe guard 5 for preventing kicking is arranged along the longitudinal direction of the shoe sole body 1 and extending upward and rearward along the upper end of the extension portion 2 located in the sole, the toe guard portion 5 and the sole body 1 form a chamber 6 capable of accommodating toe heads of feet, a buffer groove 7 is formed at the connection part of the extension portion 2 and the toe guard portion 5, a first convex strip 8 is arranged on the outer surface of the toe guard portion 5 side by side along the longitudinal direction, a second convex 9 is arranged on the outer surface of the extension portion 2 side by side, a first connecting portion 20 and a second connecting portion 30 are alternately arranged on the outer side surface of the sole body 1 and the periphery of the bottom surface of the sole body 1 in sequence, the first connecting portion 20 comprises a first transverse strip 21 which is convex along the upper end of the outer side surface of the sole body 1 and first longitudinal strips 22 which extend downwards from the two free ends of the first transverse strip 21, the first transverse strip 21 and the two second longitudinal strips 22 jointly define a first accommodating groove 23, the second connecting portion 30 comprises a second transverse strip 31 which is convex along the lower end of the outer side surface of the sole body 1 and second longitudinal strips 32 which extend downwards from the two free ends of the second transverse strip 31, the second transverse strips 31 and the two second longitudinal strips 32 together define a second receiving groove 33, two adjacent first longitudinal strips 22 on two adjacent first connecting portions 20 are embedded into the second receiving groove 33, two adjacent second longitudinal strips 32 on two adjacent second connecting portions 30 intrude into the first receiving groove 23, strip grooves 10 are formed between two adjacent first connecting portions 20, between two adjacent second connecting portions 30, and between the first connecting portions 20 and the second connecting portions 30 at intervals, a protrusion 40 is arranged around the bottom surface of the sole body 1, an annular groove 41 is formed between the protrusion 40 and the second transverse strips 32, anti-skid strips 42 are arranged in the annular groove 41 at intervals along the longitudinal direction, a drainage groove 43 is formed between two adjacent anti-skid strips 42, each anti-skid strip 42 comprises a first portion 421 and a second portion 422 which are alternately connected end to end, the included angle between the first portion 421 and the second portion 422 is 45 °, an identification region 44 for indicating a product trademark is arranged in the middle of the bottom surface of the sole body 1, the bottom surfaces of the first grooves 4 are positioned in the arch region 12 and the heel region 13 and are both provided with second grooves 50 which are recessed downwards, the depth sizes of the second grooves 50 are sequentially increased from the arch region 12 to the heel region 13, the depth size of the middle portion of the second groove 50 is smaller than the depth sizes of the two transverse sides of the second groove, the arch region 12 and the heel region 13 in the second groove 50 are respectively protruded upwards to form a first lattice strip 51 and a second lattice strip 52, and the arch region 12 and the heel region 13 are respectively divided into twelve first lattice cavities 53 and four second lattice cavities 54.
A preparation process of food-grade children soles comprises the following steps:
a. selecting expanded thermoplastic elastomer, stearic acid, zinc stearate, filling material, wear-resisting agent, foaming agent and bridging agent material;
b. the method comprises the following steps of putting an expanded thermoplastic elastomer, a filler, stearic acid, zinc stearate and an abrasion-resistant agent into a mixing mill for the first mixing, then putting a foaming agent and a bridging agent into the mixing mill, stirring for five minutes, carrying out the second mixing, the third mixing and the fourth mixing, keeping the temperature in the mixing mill at 60 ℃, and carrying out thin passing and granulation after the mixing is finished;
c. b, putting the product prepared in the step b into a stirrer for stirring and drying;
d. c, performing injection molding on the product prepared in the step c, and setting the temperature of an injection molding die 60 to 178 ℃;
e. and d, putting the product prepared in the step d into an oven for drying.
In this example, the expanded thermoplastic elastomer is prepared by heating 75% of thermoplastic elastomer under pressure to form a supercritical fluid, adding 25% of polyurethane, mixing, allowing the mixture to penetrate into the thermoplastic material, and heating and depressurizing to form a polymer phase system.
In this embodiment, referring to fig. 4, the injection mold 60 includes a first upper mold 61, a second upper mold 62, and a lower mold 63, the first upper mold 61 is disposed on the left side of the second upper mold 62, the lower mold 63 is disposed on the lower sides of the first upper mold 61 and the second upper mold 62, the lower mold 63 and the first upper mold 61 are assembled to form a first mold cavity 64, the lower mold 63 and the second upper mold 62 are assembled to form a second mold cavity 65, the first mold cavity 64 and the second mold cavity 65 are communicated to define a mold cavity 70 having the same shape as a sole, an installation groove 66 is concavely disposed in the left side surface of the second upper mold 62, a top block 67 and a slide block 68 are disposed in the installation groove 66, a spring 69 is disposed between the slide block 68 and the second upper mold 62, an inner end surface of the slide block 68 is disposed as an inclined surface, an ejector rod 80 is disposed in the installation groove 66, and the upper end extends upwardly through the second upper die 62.
The food-grade children sole prepared by the preparation process is sent to Fujianhui high molecular company Limited to entrust the sample to be detected, and the detection result is as follows:
based on the inspection performed on the samples sent, the test results for cadmium, lead, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, napthalate, butyl benzyl phthalate, napthalate diesters, and diisobutyl napthalate meet the limit requirements of the european union RoHS directive 2011/65/the modified directive (EU)2015/863 in EU appendix two.
The sample is tested according to the requirement of a client, and the test result of the content of the soluble elements of the provided sample does not exceed the limit value of European Union toy safety standard EN71-3:2013+ A3: 2018.
Referring to fig. 5 and 6, the following detection results are attached:
the samples were fully digested according to the following protocol (except hexavalent chromium and polybrominated biphenyl/polybrominated diphenyl ether tests).
Sample number SGS sample ID description
SN1 XMN19-004608.001 white plastic rice
Remarking:
(1)1mg/kg＝0.0001％
(2) MDL (medium density language) method detection limit
(3) ND is not detected (< MDL)
(4) "-" (not specified)
RoHS directive 2011/65/correction directive (EU)2015/863 of EU appendix II
The test method comprises the following steps: reference IEC 62321-4: 2013+ A1: 2017, IEC 62321-5: 2013, IEC 62321-7-2: 2017, IEC 62321-6: 2015 and IEC 62321-8: 2017, and the analysis is carried out by ICP-OES, UV-Vis and GC-MS.
EN71-3:2013+ A3: 2018-soluble element content (class III: scratchable toy materials)
The test method comprises the following steps: reference to EN71-3:2013+ A3:2018, and the analysis is carried out by ICP-OES.
The working mode of the invention is as follows: the food-grade children sole and the preparation process thereof have the advantages that through the arranged extension part 2, the bottom surface of the first groove 4 defined by the extension part 2 and the upper surface of the sole body 1 together and the side surface of the first groove 4 form a fillet, meanwhile, the cross section of the bottom surface of the first groove 4, which is positioned in the sole area 11 and along the transverse direction of the sole area, is arc-shaped, so that the sole of a foot can play a role of lateral support when being trampled, and the transverse extension and bending performance are realized, the comfort of the trampling stress is improved, the shock absorption performance of the sole area 11 of the sole body 1 is improved to a certain degree, meanwhile, the bulge 40 arranged on the sole body 1, the first part 421 and the second part 422 of the anti-skid strip 42 are combined, the designed included angle between the first part 421 and the second part 422 is 45 degrees, the bending performance of the sole body 1 is good, and water in gaps between the anti-skid strips 42 can be better, the anti-skid property is improved, the first connecting parts 20 and the second connecting parts 30 are sequentially and alternately arranged on the outer side surface of the sole body 1 and the periphery extending from the outer side surface 2 to the bottom surface of the sole body 1, so that the side wall of the sole body is good in bending property, the lateral supporting force of the sole body can be improved under the condition that the side wall is designed to be thin, the weight of the sole body 1 is reduced, and the dynamic comfort of walking of the sole body 1 is greatly improved; the arch part 12 and the heel part 13 in the second groove 50 are combined to respectively protrude upwards to form a first lattice strip 51 and a second lattice strip 52, the arch part 12 and the heel part 13 are respectively separated into twelve first lattice cavities 53 and four second lattice cavities 54, the shock absorption of the heel part 13 and the bending property of the arch are improved, the quality of the sole body 1 is reduced, the sole accords with human foot engineering mechanics, and the dynamic comfort of the sole body 1 is improved; the toe guard 5 plays roles of toe guard and kicking prevention, and the buffer groove 7 is formed in the concave part at the connection part of the extension part 2 and the toe guard 5, so that the connection part of the extension part 5 and the toe guard 5 is bent well, the toe guard can be attached to feet well in the walking process, and the comfort is high; the children sole is prepared through the process flow of the application file, the process is simple and convenient, the processing benefit is high, the hardness of the prepared sole can be higher than 50, the walking dynamic comfort is high, the environmental protection performance is high, the heavy metal, benzene and other elements which are not beneficial to the health of a body are less, and the food grade is achieved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A food level children's sole which characterized in that: the sole comprises a sole body, the sole body sequentially comprises a sole area, an arch area and a heel area along the longitudinal direction, the periphery of the upper surface of the sole body extends upwards along the extending part, the extending part and the side surface of the sole body form a sole side wall together, the extending part and the upper surface of the sole body define a first groove together, the bottom surface of the first groove and the side surface of the first groove form a fillet, the cross section of the bottom surface of the first groove in the sole area along the transverse direction is arc-shaped, a toe guard part for preventing kicking is arranged at the upper end of the extending part in the sole area along the longitudinal direction of the sole body in an upwards and backwards bending and extending mode, the toe guard part and the sole body form a cavity capable of containing toe heads of feet, and a first connecting part and a second connecting part are sequentially and alternately arranged around the outer side surface of the sole body and the periphery extending to the bottom surface of the sole body, the first connecting part comprises a first transverse strip protruding along the upper end of the lateral surface of the sole body and first longitudinal strips extending downwards from two free ends of the first transverse strip, the first transverse strip and the two second longitudinal strips jointly define a first accommodating groove, the second connecting part comprises a second transverse strip protruding along the lower end of the lateral surface of the sole body and second longitudinal strips extending downwards from two free ends of the second transverse strip, the second transverse strip and the two second longitudinal strips jointly define a second accommodating groove, two adjacent first longitudinal strips on two adjacent first connecting parts are embedded into the second accommodating groove, two adjacent second longitudinal strips on two adjacent second connecting parts are invaded into the first accommodating groove, strip grooves are formed between two adjacent first connecting parts, two adjacent second connecting parts and between the first connecting part and the second connecting part at intervals, and a protrusion is arranged around the bottom surface of the sole body, an annular groove is formed between the protrusion and the second transverse strip, anti-slip strips are arranged in the annular groove at intervals along the longitudinal direction, a water drainage groove is formed between every two adjacent anti-slip strips, each anti-slip strip comprises a first portion and a second portion which are alternately connected end to end, and the included angle between the first portion and the second portion ranges from 30 degrees to 60 degrees.
2. A food grade children's shoe sole according to claim 1, wherein: the bottom surface of first recess is located arch of foot district and heel district and all is equipped with the second recess of caving in downwards, the depth dimension of second recess increases from arch of foot portion toward heel portion in proper order, and the depth dimension at second recess middle part is less than the depth dimension of its horizontal both sides, it makes progress the arch respectively to be located arch of foot portion and heel portion in the second recess and forms first check strip and second check strip, separates twelve first check chambeies and four second check chambeies of department respectively with arch of foot portion and heel portion.
3. A food-grade children's shoe sole according to claim 1 or 2, wherein: the connection part of the extension part and the toe guard part is concave inwards to form a buffer groove.
4. A food grade children's shoe sole according to claim 3, wherein: the outer surface of the toe guard portion is provided with a plurality of first raised lines side by side along the longitudinal direction, and the outer surface of the extending portion is provided with a plurality of second protrusions side by side.
5. A food-grade children's shoe sole according to claim 4, wherein: the middle of the bottom surface of the sole body is provided with an identification area used for representing a product trademark.
6. A preparation process of food-grade children soles is characterized by comprising the following steps: the method comprises the following steps:
a. selecting expanded thermoplastic elastomer, stearic acid, zinc stearate, filling material, wear-resisting agent, foaming agent and bridging agent material;
b. the method comprises the following steps of putting an expanded thermoplastic elastomer, a filler, stearic acid, zinc stearate and an abrasion-resistant agent into a mixing mill for the first mixing, then putting a foaming agent and a bridging agent into the mixing mill, stirring for five minutes, carrying out the second mixing, the third mixing and the fourth mixing, keeping the temperature in the mixing mill at 60-70 ℃, and carrying out thinning and granulation after the mixing is finished;
c. b, putting the product prepared in the step b into a stirrer for stirring and drying;
d. c, injection molding the product prepared in the step c, and setting the temperature of an injection molding die to be 170-180 ℃;
e. and d, putting the product prepared in the step d into an oven for drying.
7. The preparation process of the food-grade children shoe sole according to claim 6, wherein the preparation process comprises the following steps: the expanded thermoplastic elastomer is prepared by forming a supercritical fluid by pressurizing and heating 70-80% of thermoplastic elastomer, adding 20-30% of polyurethane, mixing, penetrating into thermoplastic raw materials, and raising the temperature and reducing the pressure to form a polymer phase system.
8. The preparation process of the food-grade children shoe sole according to claim 6, wherein the preparation process comprises the following steps: the injection molding die comprises a first upper die, a second upper die and a lower die, wherein the first upper die is arranged on the left side of the second upper die, the lower die is arranged on the lower side of the first upper die and the second upper die, the lower die and the first upper die are matched to form a first die cavity, the lower die and the second upper die are matched to form a second die cavity, the first die cavity and the second die cavity are communicated and define a die cavity with the same shape as a sole, a mounting groove is formed in the concave side of the left side of the second upper die, an ejector block and a sliding block are arranged in the mounting groove, a spring is arranged between the sliding block and the second upper die, the inner end face of the sliding block is arranged into an inclined face, an ejector rod is arranged in the mounting groove, the lower end of the ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911154710.9A CN111011988A (en) | 2019-11-22 | 2019-11-22 | Food-grade children sole and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911154710.9A CN111011988A (en) | 2019-11-22 | 2019-11-22 | Food-grade children sole and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111011988A true CN111011988A (en) | 2020-04-17 |
Family
ID=70206848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911154710.9A Pending CN111011988A (en) | 2019-11-22 | 2019-11-22 | Food-grade children sole and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111011988A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111869986A (en) * | 2020-08-07 | 2020-11-03 | 界首市旭升塑胶制品有限公司 | Food-grade environment-friendly breathable rain shoe |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5937544A (en) * | 1997-07-30 | 1999-08-17 | Britek Footwear Development, Llc | Athletic footwear sole construction enabling enhanced energy storage, retrieval and guidance |
| CN101299940A (en) * | 2005-11-02 | 2008-11-05 | 鲁道夫·达斯勒体育用品彪马股份公司 | Shoe, in particular sports shoe |
| GB0911197D0 (en) * | 2009-06-29 | 2009-08-12 | Oluwa Bode | Impact deflection plate (i.d.p.) |
| CN101961158A (en) * | 2009-07-21 | 2011-02-02 | 锐步国际有限公司 | Article of footwear and methods of making same |
| CN202222520U (en) * | 2011-09-30 | 2012-05-23 | 浙江起步儿童用品有限公司 | Children's shoe |
| US20140259784A1 (en) * | 2013-03-13 | 2014-09-18 | Deckers Outdoor Corporation | Footwear with pontoon sole structure |
| CN104893225A (en) * | 2015-06-25 | 2015-09-09 | 安踏（中国）有限公司 | Foam composite formula for soles |
| CN106165936A (en) * | 2016-08-31 | 2016-11-30 | 琪尔特有限公司 | A kind of folding sole |
| CN206006144U (en) * | 2016-08-29 | 2017-03-15 | 温州优安婴童用品有限公司 | One kind is anti-to kick ventilative sole for children |
| CN107397292A (en) * | 2016-05-19 | 2017-11-28 | 维奥尼克集团有限公司 | Sandals with biomechanical foot support |
| CN209391166U (en) * | 2018-11-02 | 2019-09-17 | 福建隆盛轻工有限公司 | A kind of sole with arch support |
-
2019
- 2019-11-22 CN CN201911154710.9A patent/CN111011988A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5937544A (en) * | 1997-07-30 | 1999-08-17 | Britek Footwear Development, Llc | Athletic footwear sole construction enabling enhanced energy storage, retrieval and guidance |
| CN101299940A (en) * | 2005-11-02 | 2008-11-05 | 鲁道夫·达斯勒体育用品彪马股份公司 | Shoe, in particular sports shoe |
| GB0911197D0 (en) * | 2009-06-29 | 2009-08-12 | Oluwa Bode | Impact deflection plate (i.d.p.) |
| CN101961158A (en) * | 2009-07-21 | 2011-02-02 | 锐步国际有限公司 | Article of footwear and methods of making same |
| CN202222520U (en) * | 2011-09-30 | 2012-05-23 | 浙江起步儿童用品有限公司 | Children's shoe |
| US20140259784A1 (en) * | 2013-03-13 | 2014-09-18 | Deckers Outdoor Corporation | Footwear with pontoon sole structure |
| CN104893225A (en) * | 2015-06-25 | 2015-09-09 | 安踏（中国）有限公司 | Foam composite formula for soles |
| CN107397292A (en) * | 2016-05-19 | 2017-11-28 | 维奥尼克集团有限公司 | Sandals with biomechanical foot support |
| CN206006144U (en) * | 2016-08-29 | 2017-03-15 | 温州优安婴童用品有限公司 | One kind is anti-to kick ventilative sole for children |
| CN106165936A (en) * | 2016-08-31 | 2016-11-30 | 琪尔特有限公司 | A kind of folding sole |
| CN209391166U (en) * | 2018-11-02 | 2019-09-17 | 福建隆盛轻工有限公司 | A kind of sole with arch support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111869986A (en) * | 2020-08-07 | 2020-11-03 | 界首市旭升塑胶制品有限公司 | Food-grade environment-friendly breathable rain shoe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101930613B1 (en) | Article of footwear with inner and outer midsole layers | |
| US10448705B2 (en) | Shoe sole with improved grip capacity | |
| CN102342624B (en) | Wear-resistant outsole | |
| US7373738B2 (en) | Surface contact maximizing shoe, outsole and rand | |
| CN210611192U (en) | Footwear outsole with resistance elements | |
| EP2449906A2 (en) | Outsole tread pattern | |
| CN111011988A (en) | Food-grade children sole and preparation process thereof | |
| CN106998846A (en) | For the article of footwear run and ridden | |
| CN109068800A (en) | The sole face decorative pattern of on-slip shoes combines | |
| KR101604394B1 (en) | Nonslip sole | |
| CN210076716U (en) | Children correct step sole | |
| US20170196299A1 (en) | Ski Boot | |
| CN1357279A (en) | Golf sneakers | |
| CN220557506U (en) | Corrosion-proof safety shoes | |
| JP6986891B2 (en) | Shoe sole | |
| CN218457446U (en) | Anti-skid sports shoes | |
| CN213128301U (en) | Novel sole | |
| RU55258U1 (en) | OPEN SHOES | |
| CN210672237U (en) | Rubber-plastic cross-linked foamed sole-attached boots | |
| CN212117302U (en) | Combined high polymer material sole | |
| US11969054B2 (en) | Slip-resistant footwear tread including wide dispersion channels | |
| CN219537602U (en) | Integrated into one piece sole | |
| CN217937384U (en) | Antiskid rubber sole structure | |
| CN211092124U (en) | Anti-skid sole | |
| CN220088710U (en) | Ultra-light soft rubber sole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200417 |
|
| RJ01 | Rejection of invention patent application after publication |