CN107875564B - Yoga mat combining different materials and preparation method thereof - Google Patents
Yoga mat combining different materials and preparation method thereof Download PDFInfo
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- CN107875564B CN107875564B CN201711094584.3A CN201711094584A CN107875564B CN 107875564 B CN107875564 B CN 107875564B CN 201711094584 A CN201711094584 A CN 201711094584A CN 107875564 B CN107875564 B CN 107875564B
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- 239000000463 material Substances 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 32
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 32
- 229920001194 natural rubber Polymers 0.000 claims abstract description 32
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 22
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 22
- 238000007731 hot pressing Methods 0.000 claims abstract description 11
- 238000005187 foaming Methods 0.000 claims description 182
- 239000002994 raw material Substances 0.000 claims description 29
- 239000004744 fabric Substances 0.000 claims description 27
- 239000003431 cross linking reagent Substances 0.000 claims description 23
- 239000004088 foaming agent Substances 0.000 claims description 23
- 235000021355 Stearic acid Nutrition 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 22
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 22
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 22
- 239000007800 oxidant agent Substances 0.000 claims description 22
- 230000001590 oxidative effect Effects 0.000 claims description 22
- 239000008117 stearic acid Substances 0.000 claims description 22
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 21
- 239000006260 foam Substances 0.000 claims description 20
- 229920001971 elastomer Polymers 0.000 claims description 15
- 239000005060 rubber Substances 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 10
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- 238000009966 trimming Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 abstract description 7
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B6/00—Mats or the like for absorbing shocks for jumping, gymnastics or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/045—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
- B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/248—All polymers belonging to those covered by group B32B25/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0207—Materials belonging to B32B25/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
- B32B2471/04—Mats
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a yoga mat combining different materials and a preparation method thereof, and relates to the field of sports equipment. The yoga mat comprises a first layer made of synthetic rubber, a second layer made of natural rubber, and the first layer and the second layer are bonded by hot pressing. This different material combination yoga mat has both synthetic rubber and natural rubber's characteristic to combine synthetic rubber and natural rubber, make the first layer of different material combination yoga mat direct with user contact, elasticity is good, easily clean, user's sense of touch and use are felt better, regard as the bottom direct with ground contact with the second layer simultaneously, the second layer is more wear-resisting, has effectively prolonged the life of different material combination yoga mat. In addition, the preparation method of the yoga mat with the combination of different materials provided by the embodiment can be used for carrying out hot-pressing composite molding on the sheets with two different materials, so that the structures of the first layer and the second layer are maintained, and the connecting surfaces of the first layer and the second layer are firm and are not easy to fall off.
Description
Technical Field
The invention relates to the field of sports equipment, in particular to a yoga mat combining different materials and a preparation method thereof.
Background
In the existing market, the yoga mat of the pure TPE has weak anti-skid property and poor tearing degree, but the mat has good elasticity and is easy to clean; the pure natural rubber cushion has heavy weight and is not easy to clean, but has good extensibility, wear resistance and tear resistance; the yoga mats made of the two materials have the targeted defects and advantages. Yoga mats of either pure TPE or pure natural rubber have obvious disadvantages or drawbacks.
Disclosure of Invention
The invention aims to provide the yoga mat with the combination of different materials, which combines the advantages of synthetic rubber and natural rubber, so that the yoga mat with the combination of different materials has light weight and good anti-skid effect.
The invention further aims to provide a preparation method of the yoga mat with the combination of different materials, which adopts a hot-pressing mode to compound the synthetic rubber and the natural rubber, and has good compounding effect.
Embodiments of the present invention are implemented as follows:
a yoga mat with different material combinations comprises a first layer made of synthetic rubber and a second layer made of natural rubber, wherein the first layer and the second layer are bonded by hot pressing.
Alternatively, in a preferred embodiment of the present invention, the above synthetic rubber includes one of thermoplastic rubber, styrene-butadiene rubber, isoprene rubber and butadiene rubber.
Alternatively, in a preferred embodiment of the present invention, the second layer has a plurality of honeycomb-shaped through holes.
Optionally, in a preferred embodiment of the present invention, an anti-skid pattern is pressed on a surface of the second layer away from the first layer; preferably, the anti-skid pattern comprises a plurality of anti-skid units which are arranged in rows and columns, any one anti-skid unit comprises a first anti-skid strip and a second anti-skid strip, one end of the first anti-skid strip is connected with one end of the second anti-skid strip, and the other end of the first anti-skid strip is arranged at intervals with the other end of the second anti-skid strip; preferably, the anti-skid pattern protrudes out of the second layer, and a plurality of hemispherical cavities which are concave in the anti-skid pattern and used for adsorption are further arranged on the anti-skid pattern.
Optionally, in a preferred embodiment of the present invention, the yoga mat of the above-mentioned combination of different materials further includes a dustproof cloth detachably connected to a side of the second layer away from the first layer; the side of second floor is provided with the connection lantern ring, and the side of dust cloth is connected with the buckle, and the connection lantern ring is connected with the buckle selectively.
A preparation method of a yoga mat combining different materials comprises the following steps:
and stacking the first layer on the second layer to form a double-layer structure, foaming the double-layer structure to obtain a foaming double-layer structure, cooling the foaming double-layer structure, and then trimming and cutting to obtain the yoga mat of the combined body made of different materials.
Optionally, in a preferred embodiment of the present invention, foaming the above-mentioned bilayer structure includes: the double-layer structure enters the first foaming box to heat and foam the second layer, and then enters the second foaming box to heat and foam the first layer.
Alternatively, in a preferred embodiment of the present invention, the moving speed of the above-mentioned double-layered structure in the first foaming box is 5-7m/min; the air inlet mode of the first foaming box is lower air inlet; the first foaming box is internally provided with 3 first foaming sections with the length of 6m, and the foaming temperatures of the 3 first foaming sections are 100-120 ℃, 140-165 ℃ and 110-120 ℃ in sequence.
Alternatively, in a preferred embodiment of the present invention, the moving speed of the above-mentioned double-layered structure in the second foaming tank is 4-6m/min; the air inlet mode of the second foaming box is upper air inlet; the second foaming box is internally provided with 2 second foaming sections with the length of 6m, and the foaming temperature of the 2 second foaming sections is 50-70 ℃ and 80-100 ℃ in sequence.
Optionally, in a preferred embodiment of the present invention, before stacking the first layer to the second layer, preparing the first layer and the second layer separately;
the first layer comprises the following raw materials in parts by weight: 50-70 parts of TPE primary rubber particles, 1-5 parts of foaming agent, 1-5 parts of cross-linking agent, 1-5 parts of oxidant, 1-5 parts of stearic acid, 1-5 parts of toner and 10-30 parts of filler;
preferably, the raw materials of the first layer comprise the following materials in parts by weight: 65 parts of TPE primary rubber particles, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner and 23 parts of filler;
the second layer comprises the following raw materials in parts by weight: 50-70 parts of natural rubber blank, 1-5 parts of foaming agent, 1-5 parts of cross-linking agent, 1-5 parts of oxidant, 1-5 parts of stearic acid, 1-5 parts of toner, 10-20 parts of filler and 5-15 parts of mesh cloth;
preferably, the raw materials of the second layer comprise the following components in parts by weight: 60 parts of natural rubber blank, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner, 18 parts of filler and 10 parts of mesh.
The beneficial effects of the embodiment of the invention include, for example:
the yoga mat of the combination body of different materials that this embodiment provided is the bilayer composite construction that is made through the thermocompression bonding by the first layer that synthetic rubber made and the second layer that natural rubber made, this yoga mat of the combination body of different materials has both synthetic rubber and natural rubber's characteristic to combine synthetic rubber and natural rubber, make the first layer of yoga mat of the combination body of different materials direct with user contact, elasticity is good, easily clean, and user's sense of touch and use are felt the preferred, regard as the bottom direct with ground contact with the second layer simultaneously, and the second layer is more wear-resisting, has effectively prolonged the life of yoga mat of the combination body of different materials.
In addition, the preparation method of the yoga mat with the combination of different materials provided by the embodiment can be used for carrying out hot-pressing composite molding on the sheets with two different materials, so that the structures of the first layer and the second layer are maintained, and the connecting surfaces of the first layer and the second layer are firm and are not easy to fall off.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a yoga mat with a combination of different materials according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a yoga mat with a combination of different materials according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the bottom surface of the second layer of the yoga mat with different material combinations according to the embodiment of the present invention;
fig. 4 is a schematic structural view of dust-proof cloth of yoga mats of different material combinations according to an embodiment of the present invention.
Icon: 100-a yoga mat made of a combination of different materials; 110-a first layer; 120-a second layer; 121-a through hole; 122-anti-skid lines; 123-a first cleat; 124-a second cleat; 125-connecting collar; 126-hemispherical cavity; 130-dustproof cloth; 131-a buckle; 140-edge coating layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that the terms "first," "second," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, an embodiment of the present invention provides a yoga mat 100 with a combination of different materials, which includes a first layer 110 made of synthetic rubber and a second layer 120 made of natural rubber, and the first layer 110 and the second layer 120 are bonded by thermal compression.
The first layer 110 is made of synthetic rubber, which has the characteristics of light weight and easy bending. In this example, there are various choices of synthetic rubber, such as: the synthetic rubber includes, but is not limited to, one of thermoplastic rubber, styrene-butadiene rubber, isoprene rubber and butadiene rubber, and the inventor researches have found that the thermoplastic rubber has better elasticity and is easy to clean and light in weight, and in this embodiment, the thermoplastic rubber (TPE) is preferably used as the synthetic rubber.
The second layer 120 is made of natural rubber, which has better alkali resistance and high temperature resistance, and in this embodiment, the second layer 120 made of natural rubber is used as a bottom layer and is in direct contact with the bottom surface, so that the friction force is larger, the stability of the cushion is maintained in the movement process, and the cushion is not easy to slide.
Specifically, referring to fig. 2, a plurality of honeycomb-shaped through holes 121 are formed in the second layer 120, and the through holes 121 can enhance the air permeability of the yoga mat 100 made of different materials, so that sweat on the surface can volatilize as soon as possible, and the dryness of the yoga mat 100 made of different materials can be maintained.
Further, referring to fig. 3, in the present embodiment, the anti-slip patterns 122 are pressed on the surface of the second layer 120 away from the first layer 110, and the anti-slip effect of the second layer 120 is further enhanced by pressing the anti-slip patterns 122. The anti-skid pattern 122 has various structures, such as small protrusions of a sphere shape, wavy patterns, splayed patterns, etc. In this embodiment, the anti-skid pattern 122 preferably includes a plurality of anti-skid units arranged in rows, and any one of the anti-skid units includes a first anti-skid strip 123 and a second anti-skid strip 124, one end of the first anti-skid strip 123 is connected with one end of the second anti-skid strip 124, and the other end of the first anti-skid strip 123 and the other end of the second anti-skid strip 124 are arranged at intervals to form an "eight" shape.
The predetermined direction in this embodiment may be the length direction or the width direction of the yoga mat 100 of the combination of different materials, and is preferably the length direction.
Preferably, the anti-skid pattern 122 in this embodiment protrudes out of the second layer 120, the anti-skid pattern 122 is further provided with a hemispherical cavity 126 recessed in the anti-skid pattern 122, and the portion of the hemispherical cavity 126 recessed in the anti-skid pattern 122 can form an adsorption cavity, similar to the structure of forming a plurality of evenly distributed small suckers, when the second layer 120 contacts with the ground, the anti-skid pattern 122 is pressed tightly against the ground, so that the hemispherical cavity 126 is pressed tightly and deformed to be attached to the ground, a vacuum adsorption effect is formed, and the slipping of the yoga mats 100 of the combination of different materials is effectively avoided.
The anti-skid patterns 122 are a plurality of mutually independent splayed shapes in the embodiment, so that the deformation of the hemispherical cavity 126 can be facilitated, the hemispherical cavity can be tightly adsorbed on the ground, and the hemispherical cavity are not mutually influenced. Compared with the prior moire pattern, the splayed anti-slip unit has higher independence and higher precision of matching with the hemispherical cavity 126. In this embodiment, the friction-increasing effect of the anti-slip patterns 122 combines with the vacuum adsorption effect of the hemispherical cavity 126, so that the stability of the yoga mat 100 of the combination of different materials can be greatly enhanced, and the occurrence of slipping and moving conditions can be avoided.
Further, referring to fig. 4, the yoga mat 100 of the combination of different materials provided in the present embodiment further includes a dustproof cloth 130, and the dustproof cloth 130 is detachably connected to the side of the second layer 120 away from the first layer 110. Under the daily condition, after the user used the yoga mat, with yoga mat rolling formation columnar structure, reduce area, but in the in-process of rolling, the bottom surface of yoga mat can be rolled into the top surface, bottom direct and ground contact, dust and bacterium are more, after the bottom surface of yoga mat contacted with the top surface, can pollute the top surface, be unfavorable for the next time to use. Through setting up dust cloth 130 at the second layer 120 of the different material combination yoga mat 100 of this embodiment to dust cloth 130 can dismantle with second layer 120 and be connected, when the motion, dismantle dust cloth 130, make the second face direct with ground contact, when the different material combination yoga mat 100 of rolling is needed, install dust cloth 130 on second layer 120, the in-process of rolling this moment, dust cloth 130 has isolated the top surface of first layer 110 and the possibility of the bottom surface contact of second layer 120, thereby guaranteed the clean and sanitary of the different material combination yoga mat 100.
In this embodiment, the two sides of the dust-proof cloth 130 may be designed into different colors or different patterns, so that the user can distinguish the front side and the back side, and one side is always in contact with the bottom surface of the second layer 120.
There are various ways of detachable connection, for example: the connection modes of clamping, zippers, buttons and the like. In this embodiment, the connecting collar 125 is preferably disposed on the side of the second layer 120, and is specifically disposed at four corners of the second layer 120, where the connecting collar 125 is a flexible ring, so that normal use of the yoga mat 100 of the combination of different materials is not affected. The buckles 131 are connected to the positions corresponding to the four corners of the side edges of the dustproof cloth 130, the connecting lantern ring 125 is selectively connected with the buckles 131, and the connecting lantern ring 125 is buckled through the buckles 131, so that the dustproof cloth 130 is arranged on the bottom surface of the second layer 120, and the bottom surface of the second layer 120 is effectively prevented from being contacted with the top surface of the first layer 110.
In addition, in this embodiment, the yoga mat 100 with the combination of different materials further includes the wrapping layer 140, the wrapping layer 140 wraps the edges around the first layer 110 and the second layer 120, and can protect four sides of the first layer 110 and the second layer 120, because in this embodiment, materials used for the first layer 110 and the second layer 120 are different, and wear-resistant properties of the first layer 110 and the second layer 120 are also different, and the connection part of the first layer 110 and the second layer 120 is subject to long-term wear and then is easy to split and delaminate, so in this embodiment, by setting the wrapping layer 140, the edges of the first layer 110 and the second layer 120 can be effectively protected, and meanwhile, the connection part of the first layer 110 and the second layer 120 can also be protected, so that the service life of the yoga mat 100 with the combination of different materials is effectively prolonged.
In addition, the embodiment of the invention also provides a preparation method of the yoga mat 100 combining different materials, which comprises the following steps:
stacking the first layer 110 onto the second layer 120 to form a double-layer structure, foaming the double-layer structure to obtain a foamed double-layer structure, cooling the foamed double-layer structure, and then trimming and cutting to obtain the yoga mat 100 with the combination of different materials.
Specifically, the method for preparing the yoga mat 100 with the combination of different materials includes preparing the first layer 110, preparing the second layer 120, foaming the double-layer structure, cooling the foamed double-layer structure, trimming, and cutting. The above steps will be explained in detail.
S1, preparing a first layer 110.
(1) Batching according to the raw materials of the first layer 110;
(2) The prepared raw materials are put into an internal mixer for banburying,
(3) And (3) putting the banburying master batch into a milling machine, and rubber refining and rubber cutting.
(4) Performing primary crosslinking;
(5) Cutting the open-rolled rubber blank according to the length of the die;
(6) And (3) placing the rubber blank into a foaming mold, and gradually crosslinking various materials by using a crosslinking agent after a certain time under a certain pressure and temperature of a vulcanizing press, wherein the foaming agent is gradually decomposed. Then reducing pressure and opening the mould, and finishing foaming at the moment of opening the mould; cutting off incompletely foamed or corner materials at the edge of the sheet;
(7) The sheets are spliced into an intermediate web of the first layer 110 using a thermal splicing process.
Wherein, the raw materials of the first layer 110 include, by weight: 50-70 parts of TPE primary rubber particles, 1-5 parts of foaming agent, 1-5 parts of cross-linking agent, 1-5 parts of oxidant, 1-5 parts of stearic acid, 1-5 parts of toner and 10-30 parts of filler.
Preferably, the first layer 110 comprises the following raw materials in parts by weight: 60-70 parts of TPE primary rubber particles, 2-4 parts of foaming agent, 1-3 parts of cross-linking agent, 1-3 parts of oxidant, 1-3 parts of stearic acid, 2-4 parts of toner and 15-35 parts of filler.
Further preferably, the raw materials of the first layer 110 include, in parts by weight: 65 parts of TPE primary rubber particles, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner and 23 parts of filler.
S2, preparing a second layer 120.
(1) Pulverizing the raw materials of the second layer 120, and stirring for smelting;
(2) Filtering impurities;
(3) Heating and diluting;
(4) High-temperature heating composite fine cloth (no glue is embedded and pressed for compounding), and feeding into a pipeline foaming oven;
(5) Cooling, solidifying and shaping;
(6) Sheeting produces an intermediate web of the second layer 120.
Wherein, the raw materials of the second layer 120 include, by weight: 50-70 parts of natural rubber blank, 1-5 parts of foaming agent, 1-5 parts of cross-linking agent, 1-5 parts of oxidant, 1-5 parts of stearic acid, 1-5 parts of toner, 10-20 parts of filler and 5-15 parts of mesh cloth;
preferably, the raw materials of the second layer 120 include, in parts by weight: 55-65 parts of natural rubber blank, 2-4 parts of foaming agent, 1-3 parts of cross-linking agent, 1-3 parts of oxidant, 1-3 parts of stearic acid, 2-4 parts of toner, 15-20 parts of filler and 8-12 parts of mesh cloth;
further preferably, the raw materials of the second layer 120 include, in parts by weight: 60 parts of natural rubber blank, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner, 18 parts of filler and 10 parts of mesh.
S3, foaming the double-layer structure.
And stacking the first layer 110 prepared in the step S1 on the second layer 120 prepared in the step S2 to form a double-layer structure, and placing the double-layer structure in a foaming box for foaming to obtain a foaming double-layer structure.
Specifically, the double-layer structure is first put into the first foaming box to heat and foam the second layer 120, and then put into the second foaming box to heat and foam the first layer 110.
The moving speed of the double-layer structure in the first foaming box is 5-7m/min; the air inlet mode of the first foaming box is lower air inlet; the first foaming box is internally provided with 3 first foaming sections with the length of 6m, and the foaming temperatures of the 3 first foaming sections are 100-120 ℃, 140-165 ℃ and 110-120 ℃ in sequence.
The moving speed of the double-layer structure in the second foaming box is 4-6m/min; the air inlet mode of the second foaming box is upper air inlet; the second foaming box is internally provided with 2 second foaming sections with the length of 6m, and the foaming temperature of the 2 second foaming sections is 50-70 ℃ and 80-100 ℃ in sequence.
In this embodiment, the moving speed of the double-layer structure entering the first foaming box and the second foaming box and the temperature of the foaming sections in the first foaming box and the second foaming box are controlled, so that the first layer 110 and the second layer 120 can be foamed to adapt to the heat-resistant temperature of the synthetic rubber and the natural rubber, and the first layer 110 and the second layer 120 are softened and hot-pressed better. The first foaming box is firstly moved at the moving speed of 5-7m/min, the second layer 120 is heated in the mode of air inlet below the first foaming box, when the first foaming section of the first foaming box is a preheating stage and enters the second foaming section, the second layer 120 is softened and is attached to the first layer 110, the third foaming section is entered, the temperature is slightly lower than that of the second foaming section, the effect of simple cooling can be achieved, and the second layer 120 and the first layer 110 are attached more tightly.
Then the first layer 110 is heated by the moving speed of 4-6m/min into a second foaming box, the second foaming box is provided with air inlet, the softening temperature of the first layer 110 is lower because the first layer 110 is synthetic rubber, when the first foaming box is provided with air inlet, the temperature of the first layer 110 is insufficient to soften the first layer 110, when the first layer enters the second foaming box, 50-70 ℃ is used as the temperature of a first foaming section in the second foaming box, the temperature of the first layer 110 which is discharged from the second foaming box is adapted, the first foaming section can be continuously preheated and heated, then the second foaming section is heated to 80-100 ℃, and the softened parts of the first layer 110 and the softened parts of the second layer 120 are fused and are more tightly adhered, so that a foaming double-layer structure is obtained.
S4, cooling and foaming the double-layer structure.
The foaming bilayer structure that comes out from the second foaming case gets into the chill roll, and the temperature of chill roll is lower, can cool off foaming bilayer structure fast and with the inseparable pressfitting of first layer 110 and second layer 120.
S5, removing edges and cutting.
The foam double-layer structure is trimmed and cut according to the length of the yoga mat, so as to obtain the yoga mat 100 of the combination of different materials in this embodiment.
It is noted that the anti-skid pattern 122 formed on the surface of the second layer 120 far from the first layer 110 is formed by pressing the anti-skid pattern 122 formed in the mold when the second layer 120 is prepared, and the glue blank of the second layer 120 is placed in the mold. While the dust cloth 130 is independently processed. Or can be purchased directly. The four corners of the yoga mat 100 of the combination body made of different materials after trimming are provided with connecting lantern rings 125 for connecting dustproof cloth 130.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
Example 1
The embodiment provides a yoga mat of a combination of different materials, its structure is as follows: the yoga mat of the combination body made of different materials comprises a first layer and a second layer, wherein the first layer is made of thermoplastic rubber, the second layer is made of natural rubber, and the first layer and the second layer are bonded through hot pressing. The second layer is provided with a plurality of honeycomb-shaped through holes, and the second layer is further pressed with anti-skidding patterns on one surface far away from the first layer, in the embodiment, the anti-skidding patterns comprise a plurality of anti-skidding units which are arranged in rows, any one of the anti-skidding units comprises a first anti-skidding strip and a second anti-skidding strip, and the distance between the first anti-skidding strip and the second anti-skidding strip is gradually increased along the length direction of the second layer to form an eight shape.
The preparation method of the yoga mat of the combination of different materials comprises the following steps:
s1, preparing a first layer.
The first layer comprises the following raw materials in parts by weight: 65 parts of TPE primary rubber particles, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner and 23 parts of filler. And (3) preparing materials according to the raw materials of the first layer, and preparing the first layer according to a structure of a conventional manufactured sheet.
S2, preparing a second layer.
The second layer comprises the following raw materials in parts by weight: 60 parts of natural rubber blank, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner, 18 parts of filler and 10 parts of mesh. Batching according to the raw materials of the second layer; the second layer is produced according to the conventional construction of the sheet.
S3, foaming the double-layer structure.
Stacking the first layer prepared in the step S1 on the second layer prepared in the step S2 to form a double-layer structure, wherein the double-layer structure firstly enters a first foaming box at a moving speed of 6m/min to heat and foam the second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperature of the 3 first foaming sections in the first foaming box is 110 ℃, 150 ℃ and 115 ℃ in sequence; then, the air enters a second foaming box at a moving speed of 5m/min to heat and foam the first layer, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperature of the 2 second foaming sections in the second foaming box is 60 ℃ and 90 ℃ in sequence.
S4, cooling and foaming the double-layer structure.
The foaming bilayer structure that comes out from the second foaming case gets into the chill roll, and the temperature of chill roll is lower, can cool off foaming bilayer structure fast and closely pressfitting first layer and second layer.
S5, removing edges and cutting.
And trimming and cutting the foaming double-layer structure according to the length of the required yoga mat to obtain the yoga mat combining different materials.
Example 2
This embodiment is substantially the same as embodiment 1 except that: the raw material ratio of the first layer and the second layer is different:
in this embodiment, the raw materials of the first layer include, by weight: 50 parts of TPE primary rubber particles, 1 part of foaming agent, 1 part of cross-linking agent, 1 part of oxidant, 1 part of stearic acid, 1 part of toner and 10 parts of filler;
the second layer comprises the following raw materials in parts by weight: 50 parts of natural rubber blank, 1 part of foaming agent, 1 part of cross-linking agent, 1 part of oxidant, 1 part of stearic acid, 1 part of toner, 10 parts of filler and 5 parts of mesh.
Example 3
This embodiment is substantially the same as embodiment 1 except that: the raw material ratio of the first layer and the second layer is different:
in this embodiment, the raw materials of the first layer include, by weight: 70 parts of TPE primary rubber particles, 5 parts of foaming agent, 5 parts of cross-linking agent, 5 parts of oxidant, 5 parts of stearic acid, 1-5 parts of toner and 10-30 parts of filler;
the second layer comprises the following raw materials in parts by weight: 70 parts of natural rubber blank, 5 parts of foaming agent, 5 parts of cross-linking agent, 5 parts of oxidant, 5 parts of stearic acid, 5 parts of toner, 20 parts of filler and 15 parts of mesh cloth.
Example 4
This embodiment is substantially the same as embodiment 1 except that: the raw material ratio of the first layer and the second layer is different:
in this embodiment, the raw materials of the first layer include, by weight: 63 parts of TPE primary rubber particles, 4 parts of foaming agent, 4 parts of cross-linking agent, 3 parts of oxidant, 3 parts of stearic acid, 3 parts of toner and 20 parts of filler;
the second layer comprises the following raw materials in parts by weight: 68 parts of natural rubber blank, 2 parts of foaming agent, 3 parts of cross-linking agent, 4 parts of oxidant, 2 parts of stearic acid, 2 parts of toner, 16 parts of filler and 12 parts of mesh cloth.
Example 5
This embodiment is substantially the same as embodiment 1 except that: the process parameters of the foaming double-layer structure are different:
in the embodiment, the double-layer structure firstly enters the first foaming box at a moving speed of 5m/min to heat and foam the second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperature of the 3 first foaming sections in the first foaming box is 100 ℃, 140 ℃ and 110 ℃ in sequence; then the first layer is heated and foamed by entering a second foaming box at a moving speed of 4m/min, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperature of the 2 second foaming sections in the second foaming box is 50 ℃ and 80 ℃ in sequence.
Example 6
This embodiment is substantially the same as embodiment 1 except that: the process parameters of the foaming double-layer structure are different:
in the embodiment, the double-layer structure firstly enters the first foaming box at the moving speed of 7m/min to heat and foam the second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperature of the 3 first foaming sections in the first foaming box is 120 ℃ and 165 ℃ in sequence and 120 ℃; then the first layer is heated and foamed by entering a second foaming box at a moving speed of 6m/min, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperature of the 2 second foaming sections in the second foaming box is 70 ℃ and 100 ℃ in sequence.
Example 7
This embodiment is substantially the same as embodiment 1 except that: the embodiment is on the basis of real-time 1, still is connected with the dust cloth on the second floor, and the side of second floor is provided with the connection lantern ring, and the side of dust cloth is connected with the buckle, and the connection lantern ring is connected with the buckle selectively.
Example 8
This embodiment is substantially the same as embodiment 1 except that: the first layer in this embodiment is made of styrene-butadiene rubber.
Example 9
This embodiment is substantially the same as embodiment 1 except that: the first layer in this embodiment is made of butadiene rubber.
Comparative experiments
1. Selection of materials
Test example 1: according to the structure of the yoga mat with the combination of different materials and the preparation method thereof provided in the embodiment 1, the yoga mat with the combination of different materials is prepared;
comparative example 1: preparing a yoga mat by taking pure TPE as a material according to a conventional mode;
comparative example 2: the yoga mat is prepared by taking pure natural rubber as a material according to a conventional mode.
Test example 1, comparative example 1 and comparative example 2 were each 180cm in length, 80cm in width and 10cm in thickness.
TABLE 1 comparison of yoga mat performance provided by test example 1 and comparative examples 1-2
As can be seen from table 1, the yoga mat performance of the combination of different materials provided in this example is significantly better than the yoga mats provided in comparative examples 1 and 2.
2. Selection of hot-pressing composite technology
Test example 2: processing the yoga mat by using the preparation method of the yoga mat combining different materials provided in the embodiment 1; namely: the double-layer structure firstly enters a first foaming box at a moving speed of 6m/min to heat and foam a second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperature of the 3 first foaming sections in the first foaming box is 110 ℃, 150 ℃ and 115 ℃ in sequence; then, the air enters a second foaming box at a moving speed of 5m/min to heat and foam the first layer, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperature of the 2 second foaming sections in the second foaming box is 60 ℃ and 90 ℃ in sequence.
Comparative example 3: the procedure of example 1 in which the first layer and the second layer were heated sequentially was changed, namely: the double-layer structure firstly enters a foaming box at a moving speed of 6m/min, and simultaneously the first layer and the second layer are heated and foamed, and the air inlet mode of the foaming box is up and down air inlet; the foaming temperature of 5 foaming sections in the foaming box is 110 ℃, 150 ℃, 115 ℃, 60 ℃ and 90 ℃ in sequence.
Comparative example 4: the process of heating the second layer and then heating the first layer in example 1 was changed, namely: the double-layer structure firstly enters a foaming box at a moving speed of 5m/min to heat and foam the first layer, and the air inlet mode of the foaming box is upper air inlet; the foaming temperature of the 2 second foaming sections in the foaming box is 60 ℃ and 90 ℃ in sequence; then the second layer is heated and foamed by entering a foaming box at a moving speed of 6m/min, and the air inlet mode of the foaming box is lower air inlet; the foaming temperature of the 3 first foaming sections in the foaming box is 110 ℃, 150 ℃ and 115 ℃ in sequence.
Comparative example 5: the foaming temperature in example 1 was changed, namely: the double-layer structure firstly enters a first foaming box at a moving speed of 6m/min to heat and foam a second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperatures of the foaming sections in the first foaming box are all 100 ℃; then, the air enters a second foaming box at a moving speed of 5m/min to heat and foam the first layer, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperatures of the foaming sections in the second foaming box are 50 ℃.
Comparative example 5: the foaming temperature in example 1 was changed, namely: the double-layer structure firstly enters a first foaming box at a moving speed of 6m/min to heat and foam a second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperatures of the foaming sections in the first foaming box are 180 ℃; then, the air enters a second foaming box at a moving speed of 5m/min to heat and foam the first layer, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperatures of the foaming sections in the second foaming box are 120 ℃.
TABLE 2 product Performance of yoga mats made for different thermal compression compounding processes
From the above table, the performance of the yoga mats of the different material combinations provided in test example 2 was significantly better than those provided in comparative examples 3-6. The reason for this is that the operation sequence, foaming temperature, and the like of the hot-pressing compounding process in this embodiment have a great influence on the performance of the yoga mat of the compounded and formed combination of different materials, in this embodiment, the double-layer structure is selected to enter the first foaming box at a moving speed of 6m/min to heat and foam the second layer, and the air inlet mode of the first foaming box is lower air inlet; the foaming temperature of the 3 first foaming sections in the first foaming box is 110 ℃, 150 ℃ and 115 ℃ in sequence; then, the air enters a second foaming box at a moving speed of 5m/min to heat and foam the first layer, and the air inlet mode of the second foaming box is upper air inlet; the foaming temperature of 2 second foaming sections in the second foaming box is 60 ℃ and 90 ℃ in proper order the operative employee to bilayer structure heat the foaming, can effectively guarantee the product performance of different material combination yoga mats, bilayer structure bonds closely simultaneously, can not appear the layering condition.
In summary, the yoga mat with the combination of different materials provided by the embodiment of the invention is a double-layer composite structure made by hot-pressing and bonding a first layer made of synthetic rubber and a second layer made of natural rubber, and the yoga mat with the combination of different materials has the characteristics of the synthetic rubber and the natural rubber, and combines the synthetic rubber and the natural rubber, so that the first layer of the yoga mat with the combination of different materials is in direct contact with a user, has good elasticity, is easy to clean, has better touch feeling and use feeling of the user, is in direct contact with the ground by taking the second layer as a bottom layer, is more wear-resistant, and effectively prolongs the service life of the yoga mat with the combination of different materials.
In addition, the preparation method of the yoga mat with the combination of different materials provided by the embodiment can be used for carrying out hot-pressing composite molding on the sheets with two different materials, so that the structures of the first layer and the second layer are maintained, and the connecting surfaces of the first layer and the second layer are firm and are not easy to fall off.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The yoga mat is characterized by comprising a first layer made of synthetic rubber and a second layer made of natural rubber, wherein the first layer and the second layer are bonded by hot pressing;
the second layer has a plurality of honeycomb-shaped through holes;
an anti-skid pattern is pressed on one surface of the second layer far away from the first layer; the anti-skid pattern comprises a plurality of anti-skid units which are arranged in rows and columns, wherein any one anti-skid unit comprises a first anti-skid strip and a second anti-skid strip, one end of the first anti-skid strip is connected with one end of the second anti-skid strip, and the other end of the first anti-skid strip is arranged at intervals with the other end of the second anti-skid strip; the anti-skid patterns protrude out of the second layer, and a plurality of hemispherical cavities which are concave in the anti-skid patterns and used for adsorption are also arranged on the anti-skid patterns;
the preparation method of the yoga mat of the combination of different materials comprises the following steps: stacking the first layer onto the second layer to form a double-layer structure, foaming the double-layer structure to obtain a foaming double-layer structure, cooling the foaming double-layer structure, and then trimming and cutting to obtain the yoga mat of the combination body made of different materials;
foaming the bilayer structure comprises: the double-layer structure enters a first foaming box to heat and foam the second layer, and then enters a second foaming box to heat and foam the first layer;
the moving speed of the double-layer structure in the first foaming box is 5-7m/min; the air inlet mode of the first foaming box is lower air inlet; 3 first foaming sections with the length of 6m are arranged in the first foaming box, and the foaming temperatures of the 3 first foaming sections are 100-120 ℃, 140-165 ℃ and 110-120 ℃ in sequence;
the moving speed of the double-layer structure in the second foaming box is 4-6m/min; the air inlet mode of the second foaming box is upper air inlet; 2 second foaming sections with the length of 6m are arranged in the second foaming box, and the foaming temperatures of the 2 second foaming sections are 50-70 ℃ and 80-100 ℃ in sequence;
the synthetic rubber includes thermoplastic rubber;
before stacking the first layer to the second layer, further comprising preparing the first layer and the second layer separately;
the first layer comprises the following raw materials in parts by weight: 50-70 parts of TPE primary rubber particles, 1-5 parts of foaming agent, 1-5 parts of cross-linking agent, 1-5 parts of oxidant, 1-5 parts of stearic acid, 1-5 parts of toner and 10-30 parts of filler;
the second layer comprises the following raw materials in parts by weight: 50-70 parts of natural rubber blank, 1-5 parts of foaming agent, 1-5 parts of cross-linking agent, 1-5 parts of oxidant, 1-5 parts of stearic acid, 1-5 parts of toner, 10-20 parts of filler and 5-15 parts of mesh cloth.
2. The yoga mat of claim 1, further comprising a dust cloth removably attached to a side of the second layer remote from the first layer; the side of second floor is provided with the connection lantern ring, the side of dust cloth is connected with the buckle, the connection lantern ring selectively with the buckle is connected.
3. The yoga mat of a combination of different materials of claim 1, wherein the first layer comprises, in parts by weight: 65 parts of TPE primary rubber particles, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner and 23 parts of filler;
the second layer comprises the following raw materials in parts by weight: 60 parts of natural rubber blank, 3 parts of foaming agent, 2 parts of cross-linking agent, 2 parts of oxidant, 2 parts of stearic acid, 3 parts of toner, 18 parts of filler and 10 parts of mesh.
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| CN115195248A (en) * | 2021-04-08 | 2022-10-18 | 江西伟群塑胶有限公司 | High-strength anti-tearing yoga ground mat and production process thereof |
| CN113290995A (en) * | 2021-06-07 | 2021-08-24 | 福清市胜德塑胶制品有限公司 | Shock-absorbing slow-elastic exercise mat and preparation method thereof |
| CN113290994A (en) * | 2021-06-07 | 2021-08-24 | 福清市胜德塑胶制品有限公司 | Health pad containing synthetic rubber and preparation method thereof |
| CN113290996A (en) * | 2021-06-24 | 2021-08-24 | 福清市胜德塑胶制品有限公司 | Yoga mat and preparation method thereof |
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Effective date of registration: 20231124 Address after: 350319 Fenggang Industrial Zone, Gaoshan, Fuqing City, Fuzhou City, Fujian Province Patentee after: Fuqing Shengde plastic products Co.,Ltd. Address before: Unit 601, Building 1, Binjiang Peninsula, No. 233 Jiangbin West Avenue, Cangxia Street, Taijiang District, Fuzhou City, Fujian Province, 350000 Patentee before: FUZHOU BOHANSON TRADING CO.,LTD. |