CN112337038B - Automatic-rolling composite yoga mat and preparation method thereof - Google Patents

Automatic-rolling composite yoga mat and preparation method thereof Download PDF

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Publication number
CN112337038B
CN112337038B CN202011059716.0A CN202011059716A CN112337038B CN 112337038 B CN112337038 B CN 112337038B CN 202011059716 A CN202011059716 A CN 202011059716A CN 112337038 B CN112337038 B CN 112337038B
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layer
parts
foaming
yoga mat
automatic
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CN112337038A (en
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欧玉钦
夏冠明
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Guangdong Yuanhua New Material Co ltd
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Guangdong Yuanhua New Material Co ltd
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B6/00Mats or the like for absorbing shocks for jumping, gymnastics or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065Layered products comprising a layer of synthetic resin 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/40Layered products comprising a layer of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered 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
    • B32B5/18Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02Composition of the impregnated, bonded or embedded layer
    • B32B2260/021Fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04Impregnation, embedding, or binder material
    • B32B2260/046Synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/02Organic
    • B32B2266/0214Materials belonging to B32B27/00
    • B32B2266/0221Vinyl resin
    • B32B2266/0235Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56Damping, energy absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/744Non-slip, anti-slip

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses an automatic rolling composite yoga mat and a preparation method thereof, the yoga mat comprises a body, the body comprises a wear-resistant layer, a PVC foaming layer and an anti-slip layer which are sequentially arranged from top to bottom, the wear-resistant layer is a TPU film, polyester yarn mesh cloth is further arranged in the anti-slip layer, an automatic curling framework is arranged between the foaming layer and the anti-slip layer, the automatic curling framework comprises an elastic steel belt and two hard plastic strips, the elastic steel belt is arranged at the middle part of the body and extends along the length direction of the body, and the two hard plastic strips are respectively arranged at two ends of the body and are parallel to the short sides of the body. The automatic rolling composite yoga mat and the preparation method thereof provided by the invention have the function of automatically rolling the composite yoga mat; according to the preparation method, the automatic curling skeleton is fixedly sealed between the foaming layer and the anti-skid layer through foaming, a special pre-pressing die is not needed, a special hot pressing process is not needed, and the preparation method is simple and convenient to operate and easy to realize.

Description

Automatic-rolling composite yoga mat and preparation method thereof
Technical Field
The invention relates to the technical field of yoga mats, in particular to an automatic winding composite yoga mat and a preparation method thereof.
Background
The yoga mat is indispensable equipment in yoga sports, has the effect of antiskid and buffering, and can provide protection for yoga sporters. Most of the existing yoga mats are plastic products, and are spread on the ground when in use, and rolled and placed after use. When the yoga mat is rolled up normally, the yoga mat is rolled up from one end of the yoga mat through the force of both hands, and then the yoga mat is tightened through a binding belt or other fixing bags. When the rolling, the hand power is easy with yoga mat extrusion crease, and the yoga mat has certain resilience force in addition, if not tighten and open easily, is inconvenient for accomodating. In the prior art, the yoga mat capable of being automatically rolled is also arranged on two sides of the yoga mat, and the yoga mat can be automatically rolled from one section to the other end as long as certain inner rolling force is applied to the elastic steel belt, so that the yoga mat is very convenient to store, and when the yoga mat is used again, the elastic steel belt is only required to be completely unfolded, and the yoga mat is completely restored to be in an unfolded state, so that the yoga mat is very convenient to use. However, the existing automatic winding composite yoga mat is double elastic steel belts, when the automatic winding composite yoga mat is curled, two elastic steel belts must be kept to be wound synchronously, otherwise, the phenomenon that the curling tightness degrees at two ends of the yoga mat are inconsistent easily occurs, and the cost of the double elastic steel belts is high. In addition, the preparation process of the existing automatic rolling composite yoga mat is firstly required to be preset with a pre-pressing position, a plastic strip is required, the yoga mat body and the plastic body are subjected to hot pressing through a pre-pressing die, an elastic steel strip is sealed in the yoga mat body, the preparation method is required to be specific and pre-pressing die, alignment is required to be accurate in the preparation process, otherwise, the elastic framework is not completely leaked due to the sealing body, and the appearance and the use of the product are affected. It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide an automatic rolling composite yoga mat and a preparation method thereof, and aims to solve the defects that when the existing automatic rolling composite yoga mat with double elastic steel belts is rolled, the two ends are difficult to balance, the cost is high and the preparation is troublesome.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides an automatic compound yoga mat of rolling, wherein, the yoga mat includes the body, the body includes wearing layer, PVC foaming layer and the skid resistant course that from top to bottom set gradually, the wearing layer is the TPU membrane, still be equipped with polyester yarn screen cloth in the skid resistant course, be equipped with automatic skeleton of curling between foaming layer and the skid resistant course, automatic skeleton of curling is the I shape structure, including an elastic steel strip and the hard plastic lath of connection at elastic steel strip both ends, elastic steel strip sets up in the middle part of body, extends along the length direction of body, two hard plastic laths set up respectively in the both ends of body, parallel with the minor face of body.
In the automatic winding composite yoga mat, the width of the elastic steel belt is 1-3cm, and the length is smaller than that of the body.
In the automatic rolling composite yoga mat, the thickness of the wear-resistant layer is 0.05-0.1 mm, the thickness of the foaming layer is 2-5 mm, and the thickness of the anti-slip layer is 2-3 mm.
In the automatic winding composite yoga mat, the surface of the foaming layer is also provided with a printing layer.
In the automatic rolling composite yoga mat, the wearing layer comprises the following components in parts by weight: 80 to 120 parts of TPU resin and 0.5 to 1.5 parts of zinc stearate.
In the automatic rolling composite yoga mat, the anti-slip layer comprises the following components in parts by weight: 60 to 80 parts of polyvinyl chloride paste resin, 30 to 40 parts of plasticizer, 1.2 to 2 parts of stabilizer, 2 to 5 parts of composite foaming agent, 0.5 to 1.0 part of tackifier and 0 to 0.5 part of pigment.
In the automatic rolling composite yoga mat, the foaming layer comprises the following components in parts by weight: 55-70 parts of polyvinyl chloride paste resin, 28-36 parts of plasticizer, 1.5-2.5 parts of stabilizer, 3-6 parts of composite foaming agent and 0-0.5 part of pigment.
In the automatic rolling composite yoga mat, the composite foaming agent comprises the following components in parts by weight: 25-30 parts of azodicarbonamide foaming agent, 20-25 parts of DOTP, 2-5 parts of sodium bicarbonate and 1-2 parts of active zinc oxide.
The preparation method of the automatic rolling composite yoga mat comprises the following steps:
step S1: mixing the components in the anti-slip layer according to the proportion, stirring and uniformly mixing to obtain anti-slip layer slurry, and then coating the anti-slip layer slurry on the polyester fiber mesh cloth with the coating and scraping amount of 400-500 g/m 2 Plasticizing and shaping at 190-195 ℃ for standby;
step S2: taking all components in the foaming layer according to the proportion, and stirring and uniformly mixing to obtain foaming layer slurry for standby;
step S3: placing an elastic steel belt and a hard plastic strip plate on the plasticized and shaped anti-slip layer, and coating foaming layer slurry on the surface with the coating amount of 800-1000 g/m 2 After the coating is finished, the coating is sent into a foaming furnace for foaming, and after the foaming is finished, the coating is cooled to obtain a composite anti-slip layer and a foaming layer;
step S4: taking the components of the wear-resistant layer according to the proportion, stirring and mixing, and casting to form a film to obtain a TPU film for later use;
step S5: and coating PU hot melt adhesive on the surface of the foaming layer, adhering the TPU film on the foaming layer, and performing hot pressing, embossing and cutting to obtain the automatic winding composite yoga mat.
In the preparation method of the automatic winding composite yoga mat, in the step S3, the temperature of the foaming furnace is as follows: 190-205 deg.c in the first area, 200-215 deg.c in the second area, 200-215 deg.c in the third area and 160-180 deg.c in the fourth area.
The beneficial effects are that:
the invention provides an automatic rolling composite yoga mat and a preparation method thereof, wherein an automatic rolling framework is arranged in the middle of a body of the automatic rolling composite yoga mat, the automatic rolling framework comprises an elastic steel belt arranged in the middle of the body, the elastic steel belt can drive the body to roll, so that the automatic rolling composite yoga mat is achieved, the two ends of the automatic rolling composite yoga mat are uniformly stressed, the two ends of the rolled yoga mat are flat, and the automatic rolling composite yoga mat is easy to store. The invention also provides a preparation method of the automatic winding composite yoga mat, by arranging the foaming layer and the anti-slip layer, the automatic winding framework is fixedly sealed between the foaming layer and the anti-slip layer, a special pre-pressing die is not needed, a special hot pressing process is not needed, and the automatic winding composite yoga mat is simple and convenient to operate and easy to realize. Meanwhile, the method prepares the foaming layer with the buffering function and the anti-skid layer with the anti-skid performance respectively, so that the buffering performance and the anti-skid performance can be fully realized in the foaming layer and the anti-skid layer respectively, and when the foaming layer and the anti-skid layer are integrated, the excellent buffering performance and the anti-skid performance cannot be obtained at the same time.
Drawings
FIG. 1 is a schematic structural view of an automatic winding composite yoga mat provided by the invention;
fig. 2 is a schematic structural view of an automatic curling skeleton provided on an anti-slip layer.
Detailed Description
The invention provides an automatic winding composite yoga mat and a preparation method thereof, which are used for making the purposes, technical schemes and effects of the invention clearer and more definite, and the invention is further described in detail in the following examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the invention provides an automatic winding composite yoga mat, which comprises a body 1, wherein the body 1 comprises a wear-resistant layer 2, a foaming layer 3 and an anti-slip layer 4 which are sequentially arranged from top to bottom, the thickness of the wear-resistant layer 2 is 0.05-0.1 mm, the foam layer is a TPU film, the foam layer 3 is a PVC low-viscosity foaming material with the thickness of 2-5 mm, the foaming rate is high, the buffering performance is good, the anti-slip layer 4 is a high-viscosity PVC foaming material with the thickness of 2-3 mm, the wear resistance is good, polyester silk screen cloth is further arranged in the anti-slip layer, the warp of the polyester silk screen cloth is 100D low-stretch yarn, and the weft of the polyester silk screen cloth is 100D low-stretch yarn, so that special anti-slip textures can be formed on the surface of the anti-slip layer, and the anti-slip effect of the anti-slip layer is improved.
The foaming layer 3 and the anti-slip layer 4 are provided with an automatic curling framework, the automatic curling framework is of an I-shaped structure, and as shown in figure 2, the automatic curling framework comprises an elastic steel belt 5 and hard plastic strips 6 connected to two ends of the elastic steel belt, the elastic steel belt 5 is arranged at the middle part of the body and extends along the length direction of the body, and the two hard plastic strips are respectively arranged at two ends of the body and are parallel to the short sides of the body. The length of the elastic steel strip is close to the length of the body, but slightly smaller than the length of the body, the length of the two hard plastic strips is smaller than the length of the short side of the body, the two hard plastic strips are perpendicular to the elastic steel strip, a socket is arranged in the middle of each hard plastic strip, the end part of each elastic steel strip extends into the corresponding socket and is clamped with the corresponding hard plastic strip, and the elastic steel strip and the corresponding hard plastic strip form an I-shaped automatic curled skeleton. The width of the elastic steel belt determines the curling force, the width of the elastic steel belt cannot be too narrow or too wide, the too narrow curling force is insufficient to drive the body to curl, the too wide width can increase the cost and the weight, and when the width of the elastic steel belt is 1-3cm, the automatic curling force requirement of the body can be met, and the elastic steel belt has moderate cost and weight. The hard plastic strips are arranged at the two ends of the body, and are mainly used for driving the two sides of the body to be curled in parallel when the elastic steel belt is curled, so that the two ends of the body are smooth after being wound, and meanwhile, the body is paved when the elastic steel belt is unfolded conveniently.
The automatic rolling composite yoga mat with the structure only comprises one elastic steel belt, the structure is simpler, the cost is lower, when the automatic rolling composite yoga mat is curled, the elastic steel belt drives the body to roll from the middle of the body, so that the stress on two sides of the body is even, and the rolling becomes easier and more convenient due to the effect of the hard plastic lath. In addition, the elastic steel belt is arranged in the middle of the body, so that the elastic steel belt is prevented from being worn out easily due to edges when arranged on two sides, and potential safety hazards are caused when the elastic steel belt pierces out of the body.
In the automatic rolling composite yoga mat with the structure, the surface of the foaming layer is also provided with a printing layer. The printing layer makes the body have different decorative patterns and patterns, increases the decorative effect of yoga mat to because the wearing layer is the TPU membrane, the transparency is high, and the wearability is good, the pattern on protection printing layer that can be better.
Preferably, the wear-resistant layer comprises the following components in parts by weight: 80-120 parts of TPU resin and 0.5-1.5 parts of zinc stearate, and the TPU film is obtained by mixing and casting to form a film, has excellent wear resistance, hygroscopicity and transparency, has no harmful gas output, is free from plasticizer, and is healthy and environment-friendly.
Specifically, the anti-slip layer comprises the following components in parts by weight: 60 to 80 parts of polyvinyl chloride paste resin, 30 to 40 parts of plasticizer, 1.2 to 2 parts of stabilizer, 2 to 5 parts of composite foaming agent, 0.5 to 1.0 part of tackifier and 0 to 0.5 part of pigment. The polyvinyl chloride paste resin comprises a polyvinyl chloride paste resin E67ST and a polyvinyl chloride paste resin PR-F, wherein the polyvinyl chloride paste resin E67ST is a polyvinyl chloride paste resin with a K value of 67 and a polymerization degree of 850-900, and has high foaming performance; the polyvinyl chloride paste resin PR-F has a K value of 70 and a polymerization degree of 1200-1250, has high elastic property, can improve the elasticity of products, and has a good buffering effect. The plasticizer is diisononyl phthalate, so that the toughness and flexibility of the product can be improved. The foaming property and the elasticity of the product can be improved simultaneously by combining the polyvinyl chloride paste resin E67ST with the polyvinyl chloride paste resin PR-F. The stabilizer is a potassium zinc heat stabilizer and can prevent PVC from being decomposed by heating in the preparation process. The composite foaming agent comprises 25-30 parts of azodicarbonamide foaming agent, 20-25 parts of DOTP, 2-5 parts of sodium bicarbonate and 1-2 parts of active zinc oxide, has lower foaming temperature, can reduce the thermal decomposition rate of PVC in the foaming process, can obtain more compact and fine cells, and improves the elasticity of products. The tackifier is a BYK-410 tackifier provided by Pick chemical in Germany, can improve the viscosity of the system, and is convenient for sizing on polyester yarn mesh cloth during preparation to form anti-slip textures.
Specifically, the foaming layer comprises the following components in parts by weight: 55-70 parts of polyvinyl chloride paste resin, 28-36 parts of plasticizer, 1.5-2.5 parts of stabilizer, 3-6 parts of composite foaming agent and 0-0.5 part of pigment. Similarly, the polyvinyl chloride paste resin comprises polyvinyl chloride paste resin E67ST and polyvinyl chloride paste resin PR-F, and has better foaming performance and elasticity by adjusting the proportion of the polyvinyl chloride paste resin E67ST and the polyvinyl chloride paste resin PR-F. The composite foaming agent is also a composition of azodicarbonamide foaming agent, DOTP, sodium bicarbonate and active zinc oxide, has good foaming performance and low foaming temperature, and in the foaming layer, the addition amount of the composite foaming agent is large, the foaming rate is higher, and the buffering effect of the foaming layer is good.
The application also discloses a preparation method of the automatic winding composite yoga mat, which comprises the following steps:
step S1: the preparation method comprises the steps of taking all components in an anti-slip layer according to the proportion, firstly stirring and mixing polyvinyl chloride paste resin, a stabilizer and a composite foaming agent uniformly, then adding a plasticizer, stirring and mixing, then adding pigment, stirring and mixing uniformly, finally adding a tackifier, stirring and mixing uniformly to obtain anti-slip layer slurry, coating the anti-slip layer slurry on polyester yarn mesh cloth, wherein the coating and scraping amount is 400-5000 g/m 2 After finishing the coating and scrapingPlasticizing and shaping at 190-195 ℃ for standby. It should be noted that the stirring speed is not too high when the powder is stirred and mixed, so that the powder is prevented from scattering and the precision is affected.
Step S2: and (3) taking all components in the foaming layer according to the proportion, and uniformly stirring and mixing all the components according to the same method in the step S1 to obtain the foaming layer slurry for later use.
Step S3: placing an automatic curled skeleton formed by combining an elastic steel belt and hard plastic strips on the plasticized and shaped anti-skid layer, wherein the elastic steel belt is positioned in the middle of the anti-skid layer, the hard plastic strips are positioned at the upper edge and the lower edge of the anti-skid layer, and the surface is coated with foaming layer slurry with the coating quantity of 800-1000 g/m 2 After being coated and scraped, the mixture is sent into a foaming furnace for foaming, and the foaming temperature is as follows: the first area is 190-205 ℃, the second area is 200-215 ℃, the third area is 200-215 ℃, the fourth area is 160-180 ℃, and the composite anti-skid layer and foaming layer are obtained after cooling by a cooling roller after foaming. The anti-slip layer and the foaming layer are main body layers of the yoga mat, good elasticity can be provided, a buffer effect is achieved, the foaming multiplying power of the foaming layer is the key place for influencing the elasticity, and the foaming layer with the proper foaming multiplying power is obtained by adding the composite foaming agent and controlling the foaming temperature.
Step S4: and (3) taking all the components in the wear-resistant layer according to the proportion, stirring, mixing, extruding and mixing by a screw, and then casting to form a TPU film for later use.
Step S5: and (3) coating PU hot melt adhesive on the surface of the foaming layer obtained in the step (S3), adhering the TPU film on the foaming layer, and performing hot pressing, embossing and cutting to obtain the automatic rolling composite yoga mat.
The automatic rolling composite yoga mat with the structure has the advantages that the stress is balanced during rolling, the rolling is convenient, the two ends of the rolled composite yoga mat are easy to align after being rolled, the rolled composite yoga mat is convenient to store, and in addition, only one elastic steel belt is needed, so that the composite yoga mat is light in weight and low in cost, and meets the requirements of the masses; the anti-slip layer arranged on the bottom surface can obtain a structure with anti-slip textures on the bottom surface through the structure of the polyester silk screen cloth, and the anti-slip performance of the product can be improved due to the tackifier added in the anti-slip layer; the foaming layer is arranged in the middle of the body, has high foaming multiplying power and good elasticity and buffering performance, is made of foaming materials together with the anti-skid layer, bonds the anti-skid layer and the foaming layer through foaming, and seals the elastic steel belt and the hard plastic strip plate in the body through foaming; the wear-resistant layer arranged on the surface is a TPU film, has good wear resistance, has good hygroscopicity and transparency, can protect the printing patterns of the inner layer, and meanwhile, the TPU film is healthy and environment-friendly because no plasticizer is added. According to the preparation method of the automatic rolling composite yoga mat, the elastic steel belt and the hard plastic strip plates are fixed between the anti-slip layer and the foaming layer in the foaming process, and the elastic steel belt and the hard plastic strip plates are not required to be fixed through preset positions and hot-pressing plastic strips, so that the preparation steps are simpler, and the appearance of the product is more attractive.
Example 1
The utility model provides an automatic compound yoga mat of rolling, the yoga mat includes the body, the body includes wearing layer, PVC foaming layer and the skid resistant course that from top to bottom set gradually, the thickness of wearing layer is 0.08mm, the thickness of foaming layer is 3mm, the thickness of skid resistant course is 3mm, this internal elastic steel strip and two hard plastic laths that still includes, elastic steel strip and two hard plastic laths set up between foaming layer and skid resistant course, elastic steel strip sets up in body middle part, extends along the length direction of body, the centre of hard plastic lath is equipped with the socket, elastic steel strip's both ends stretch into in the socket, peg graft perpendicularly with hard plastic lath to hard plastic lath sets up in the both ends of body, and is parallel with the minor face of body.
The anti-slip layer comprises the following components in parts by weight: 70 parts of polyvinyl chloride paste resin, 35 parts of plasticizer, 1.8 parts of stabilizer, 3 parts of composite foaming agent, 0.8 part of tackifier and 0.3 part of pigment. And polyester yarn mesh cloth is also arranged in the anti-slip layer.
The foaming layers comprise the following components in parts by weight: 60 parts of polyvinyl chloride paste resin, 34 parts of plasticizer, 2.0 parts of stabilizer, 5 parts of composite foaming agent and 0.3 part of pigment.
The wear-resistant layer is a TPU film and comprises the following components in parts by weight: 100 parts of TPU resin and 1.0 part of zinc stearate.
The preparation method of the automatic winding composite yoga mat comprises the following steps:
step S1: the preparation method comprises the steps of taking all components in an anti-slip layer according to a proportion, stirring and mixing polyvinyl chloride paste resin, a stabilizer and a composite foaming agent uniformly, adding a plasticizer, stirring and mixing, adding pigment, stirring and mixing uniformly, adding a tackifier, stirring and mixing uniformly to obtain anti-slip layer slurry, coating the anti-slip layer slurry on polyester yarn mesh cloth, wherein the coating and scraping amount is 450g/m 2 Plasticizing and shaping at 190-195 ℃ after finishing the coating and scraping for standby.
Step S2: and (3) taking all components in the foaming layer according to the proportion, and uniformly stirring and mixing all the components according to the same method in the step S1 to obtain the foaming layer slurry for later use.
Step S3: placing an automatic curled skeleton formed by combining an elastic steel belt and a hard plastic slat on the plasticized and shaped anti-skid layer, and coating foaming layer slurry on the surface with the coating amount of 900g/m 2 After being coated and scraped, the mixture is sent into a foaming furnace for foaming, and the foaming temperature is as follows: the first area is 190-205 ℃, the second area is 200-215 ℃, the third area is 200-215 ℃, the fourth area is 160-180 ℃, and the composite anti-skid layer and foaming layer are obtained after cooling by a cooling roller after foaming.
Step S4: and (3) taking all the components in the wear-resistant layer according to the proportion, stirring, mixing, extruding and mixing by a screw, and casting to form a TPU film for later use.
Step S5: and (3) coating PU hot melt adhesive on the surface of the foaming layer obtained in the step (S3), adhering the TPU film on the foaming layer, and performing hot pressing, embossing and cutting to obtain the automatic rolling composite yoga mat.
Example 2
Automatic compound yoga mat of rolling, the structure of yoga mat is the same with embodiment 1, and the difference lies in:
(1) The thickness of the wear-resistant layer is 0.05mm, the thickness of the foaming layer is 5mm, the thickness of the anti-slip layer is 2mm, a printing layer is further arranged between the PVC foaming layer and the wear-resistant layer, and the printing layer is a pattern printed on the surface of the foaming layer through printing equipment;
(2) The anti-slip layer comprises the following components in parts by weight: 60 parts of polyvinyl chloride paste resin, 30 parts of plasticizer, 1.2 parts of stabilizer, 2 parts of composite foaming agent and 0.5 part of tackifier;
(3) The foaming layers comprise the following components in parts by weight: 70 parts of polyvinyl chloride paste resin, 36 parts of plasticizer, 2.5 parts of stabilizer and 6 parts of composite foaming agent;
(4) The wear-resistant layer is a TPU film and comprises the following components in parts by weight: 80 parts of TPU resin and 0.5 part of zinc stearate.
The preparation method of the automatic winding composite yoga mat in embodiment 2 is the same as that in embodiment 1, and the difference is that:
(1) In the step S1, the scraping amount of the slip-resistant layer slurry is 400g/m 2
(2) In step S3, the coating amount of the slurry of the foaming layer is 1000g/m 2
(3) Before step S4, a printing step is further provided, and a pattern is printed on the surface of the foaming layer by a printer.
Example 3
Automatic compound yoga mat of rolling, the structure and the embodiment of yoga mat are the same, and the difference lies in:
(1) The thickness of the wear-resistant layer is 0.1mm, the thickness of the foaming layer is 2mm, the thickness of the anti-slip layer is 3mm, a printing layer is further arranged between the PVC foaming layer and the wear-resistant layer, and the printing layer is a pattern printed on the surface of the foaming layer through printing equipment;
(2) The anti-slip layer comprises the following components in parts by weight: 80 parts of polyvinyl chloride paste resin, 40 parts of plasticizer, 2 parts of stabilizer, 5 parts of composite foaming agent, 1.0 part of tackifier and 0.5 part of pigment;
(3) The foaming layers comprise the following components in parts by weight: 55 parts of polyvinyl chloride paste resin, 28 parts of plasticizer, 1.5 parts of stabilizer, 3 parts of composite foaming agent and 0.4 part of pigment;
(4) The wear-resistant layer is a TPU film and comprises the following components in parts by weight: 120 parts of TPU resin and 1.5 parts of zinc stearate.
The preparation method of the automatic winding composite yoga mat in embodiment 2 is the same as that in embodiment 1, and the difference is that:
(1) In step S1, the scraping amount of the slip-resistant layer slurry is 500g/m 2
(2) In step S3, the foaming layerThe scraping amount of the slurry is 800g/m 2
(3) Before step S4, a printing step is further provided, and a pattern is printed on the surface of the foaming layer by a printer.
The yoga mats obtained in examples 1-3 were tested for anti-slip properties, abrasion resistance, and rebound resilience, which were measured according to standard ASTM-F609, according to standard ASTM-D4966, and according to standard ISO 4662. Through detection, the yoga mats of the embodiments 1-3 all have static friction coefficients of 0.98, wear resistance of more than 270 turns and elastic recovery rate of more than 14%.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.

Claims (9)

1. The utility model provides an automatic rolling composite yoga mat, its characterized in that, the yoga mat includes the body, the body includes wearing layer, PVC foaming layer and the skid resistant course that from top to bottom set gradually, the wearing layer is the TPU membrane, still be equipped with polyester silk screen cloth in the skid resistant course, be equipped with automatic crimping skeleton between foaming layer and the skid resistant course, automatic crimping skeleton is I shape structure, including an elastic steel band and the hard plastic lath of connection at elastic steel band both ends, elastic steel band sets up in the middle part of body, extends along the length direction of body, two hard plastic laths set up respectively in the both ends of body, parallel with the minor face of body, the intermediate position of hard plastic lath is equipped with the socket, the tip of elastic steel band stretches into in the socket, with hard plastic lath joint;
the preparation method of the automatic winding composite yoga mat comprises the following steps:
step S1: mixing the components in the anti-slip layer according to the proportion, stirring and uniformly mixing to obtain anti-slip layer slurry, and then coating the anti-slip layer slurry on the polyester fiber mesh cloth with the coating and scraping amount of 400-500 g/m 2 Plasticizing and shaping at 190-195 ℃ for standby;
step S2: taking all components in the foaming layer according to the proportion, and stirring and uniformly mixing to obtain foaming layer slurry for standby;
step S3: placing an elastic steel belt and a hard plastic strip plate on the plasticized and shaped anti-slip layer, and coating foaming layer slurry on the surface with the coating amount of 800-1000 g/m 2 After the coating is finished, the coating is sent into a foaming furnace for foaming, and after the foaming is finished, the coating is cooled to obtain a composite anti-slip layer and a foaming layer;
step S4: taking the components of the wear-resistant layer according to the proportion, stirring and mixing, and casting to form a film to obtain a TPU film for later use;
step S5: and coating PU hot melt adhesive on the surface of the foaming layer, adhering the TPU film on the foaming layer, and performing hot pressing, embossing and cutting to obtain the automatic winding composite yoga mat.
2. The automatic rolling composite yoga mat according to claim 1, wherein the width of the elastic steel belt is 1-3cm, and the length is smaller than the length of the body.
3. The automatic rolling composite yoga mat according to claim 1, wherein the thickness of the wear-resistant layer is 0.05-0.1 mm, the thickness of the foaming layer is 2-5 mm, and the thickness of the anti-slip layer is 2-3 mm.
4. The automatic rolling composite yoga mat of claim 1, wherein the foam layer surface is further provided with a print layer.
5. The automatic rolling composite yoga mat of claim 1, wherein the wear-resistant layer comprises, in parts by weight: 80 to 120 parts of TPU resin and 0.5 to 1.5 parts of zinc stearate.
6. The automatic rolling composite yoga mat of claim 1, wherein the anti-slip layer comprises, in parts by weight: 60 to 80 parts of polyvinyl chloride paste resin, 30 to 40 parts of plasticizer, 1.2 to 2 parts of stabilizer, 2 to 5 parts of composite foaming agent, 0.5 to 1.0 part of tackifier and 0 to 0.5 part of pigment.
7. The automatic rolling composite yoga mat of claim 1, wherein the foam layers each comprise, in parts by weight: 55-70 parts of polyvinyl chloride paste resin, 28-36 parts of plasticizer, 1.5-2.5 parts of stabilizer, 3-6 parts of composite foaming agent and 0-0.5 part of pigment.
8. The automatic rolling composite yoga mat of any of claims 6-7, wherein the composite foaming agent comprises, in parts by weight: 25-30 parts of azodicarbonamide foaming agent, 20-25 parts of DOTP, 2-5 parts of sodium bicarbonate and 1-2 parts of active zinc oxide.
9. The automatic winding composite yoga mat according to claim 1, wherein in the step S3, the temperature of the foaming furnace is: 190-205 deg.c in the first area, 200-215 deg.c in the second area, 200-215 deg.c in the third area and 160-180 deg.c in the fourth area.
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CN113771447B (en) * 2021-10-15 2023-05-23 鸿星尔克(绵阳)实业有限公司 High-elastic smooth antibacterial fabric and sport pants
CN114344848A (en) * 2021-12-17 2022-04-15 广东远华新材料股份有限公司 Intelligent exercise mat and exercise monitoring processing method based on same

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