CS257458B1 - Expanded insolide material - Google Patents

Abstract

Refined insole material hires for sports footwear and casual shoes, consisting of of a textile facing layer and a foam backing layers. The textile facing layer is point-connected with a mechanically pulled-down spunbond layer polyvinyl chloride containing 60 to 95 parts of plasticizers, 2 to 5 parts of stabilizers foams and 0.1 to 2 parts thermostabilizers, based on the weight of the polyvinyl chloride weight of 100 to 800 kg / m, hardness 10 to 30 Sh, with resistance to compression 30 to 70 kPa, hysteresis 20 to 40% permanent deformation to 15% of the total gross and with water vapor permeability at least 3.5 mg / cm < 2 > h.

Description

The invention relates to a milled shoe material, in particular for sports shoes and leisure shoes, consisting of a textile facing layer and a foam backing layer.

In the manufacture of sports footwear, high requirements are also placed on shooting materials which co-determine the overall properties of the final product. The lower layers of insoles were made of fibrous and damping materials based on natural or synthetic fibers, optionally interconnected with a polymeric binder. At present, insole materials are known, where a combination of textile with a light rubber layer is used. However, said combination of latch material has disadvantageous hygienic properties.

Known material is based on ethylene / vinyl acetate copolymers or mixtures of this copolymer with polyethylene. The material has a closed pore structure and a low specific gravity. Among other known latching materials, the first is a polyvinylchloride plastic latch which is shaped to the desired shape by subjecting the high frequency heating during compression during compression. The second latch is made of two cuts of polyvinyl chloride foil with a thickness of 0.5 mm, which are welded after. circuit.

Other welds are the separate tip and outer crown portions. The enclosed common space in the inner vault and fifth portions is filled with glycerin, the peak space is filled with polyvinyl chloride foam, and the outer vault space is left empty. The third insole is made of three layers, where the middle layer consists of polyurethane, the top layer of textile material TEXON and the bottom layer is made of elastic polyvinyl chloride. Bottled polyolefin cushioning compositions are also known which contain natural or polyisoprene rubber, zinc white, stearin and other additives as a basis.

Said polyolefin composition for applications has a low density and a hardness of 15 to 25 Sh. Another known latch material is a combination of textile with a chemically milled layer based on polyvinyl chloride, optionally based on a highly milled crosslinking polyolefin. The disadvantage of these gunfire materials is that their construction and the closest closed pores do not allow good drainage of sweat and water vapor. Another disadvantage is the very low impact recovery properties, a high percentage of permanent deformation during extended wear, and a reduction in the sanitary, health and performance properties of the insoles.

These disadvantages are overcome by the fact that the textile material is spot-bonded to a mechanically ground softened polyvinyl chloride layer containing 60 to 95% by weight of plasticizer parts, 2 to 5% by weight. parts of foam stabilizers and 0.1 to 2 wt. parts of thermostabilisers, based on the weight of polyvinyl chloride, of a density of 100 to 800 kg / m, a hardness of 10 to 30 Sh, a compression resistance of 30 to 70 kPa, a hysteresis of 20 to 40%, permanent deformation up to 15% of total depth and water vapor permeability 3.5 mg / cm, h. Further, the bottomed softened layer of polyvinyl chloride may contain 0.01 to 3 wt. parts of antifungal and antibacterial additives; and 0.1 to 40 wt. % by weight of the polyvinyl chloride.

The technical effect of the invention is manifested by the fact that the textile structure which comes into contact with the foot absorbs sweat and water vapor very intensively, allowing the open, interconnected pores of mechanically bottled polyvinyl chloride to transport them. Sweat and water vapors are transported when the gunfire is pulled while walking, and sorption is removed when it is lightened. Rhythmic repetition of sorption and subsequent transport during walking or running results in effective sweat and water vapor removal. At the same time, the open pores allow efficient absorption of substances with pronounced antibacterial and antifungal effects. By adding fillers, the absorption efficiency of antibacterial and antifungal agents is increased.

f. The expanded lattice material is illustrated in greater detail in the following examples of practical application, wherein the amounts of the components are given in parts by weight.

EXAMPLE

The lined insole material, especially for volleyball sports shoes, was created from point-linked layers. The first layer consisted of cotton terry terry and the second layer mechanically bottled polyvinyl chloride containing the following components:

pasty polyvinyl chloride 90 wt. d. polyvinyl chloride s uspenzný 10 wt. d. dibutyl phthalate 78 wt. d. sodium oleate 4 wt. d. dibutylcindimaleinát 1 wt. d. calcium carbonate 15 wt. d. antibacterial NISTATIN 2 wt. d. Resulting parameters Bulk density lightweight layer: 250 kg.m thickness 2.4 mm Character of pores: open, interconnected Preparation of PVC foam: rotor speed 220 min. inlet pressure 0.7 MPa system pressure 0.32 MPa Resulting parameters shooting material: thickness 3.5 mm Area weight 1,050 kg.m ^-3 Bulk density 250 kg.m Breaking force along 83 N across 90 N Tensile strength along 1.7 MPa across 1.8 MPa tensibility P „o z d 1 ž 4.1% across 14.2% Coherence of layers along 450 Nm ^-1 across 500 N.m. Resistance to compression 59.7 kPa hysteresis 27.8% Permanent deformation 10.8% hardness 18,0 Sh Reflection elasticity 18.0% Water vapor permeability 9,2 mg.cm .h

EXAMPLE

The lined insole material, especially suitable for orienteering sports shoes, was formed from two point-joined layers. The first textile layer 'consisted of printed cotton - MOLINO and the second layer of mechanically milled polyvinyl chloride containing the following components:

polyvinyl paste chloride 100 wt. d. tr.i cresyl phosphate 75 wt. d. drageous oleate 3 wt. d. lead oleate 1.5 wt. D silica 2 0 wt. d. GRIZÉOPULV1N1 antifouling agent 1 wt. d.

Final parameters of the layer to be treated

Bulk density gross

400 kg.m 3.8 mm

Character of pores: open, interconnected Preparation of PVC foam: rotor speed 1,800 / min. inlet pressure 0.5 MPa system pressure 0.28 MPa Resulting parameters of shooting material: thickness 4 mm Bulk density 420 kg.m ^-3 Breaking force along 140 N across 150 N Tensile strength along 1.6 MPa across 1.7 MPa extensibility along 5% across 15% Coherence of layers along 450 Nm ³ across 520 Nm ^-1 Resistance to compression 65,1 kPa hysteresis 24.3% Permanent deformation 7.0% hardness 19,0 Sh Reflection elasticity 13,0 i Water permeability a pair 4,8 mg.cm. h

Example 3

Lightweight shooting material, especially suitable for sports winter running shoes, was created from two points joined layers. The first textile layer consisted of a PES / Vs-based nonwoven fibrous fabric and the second layer a mechanically milled polyvinyl chloride containing the following components:

pasty polyvinyl chloride 100 hm. < dibutyl 82 hm. < triethanolamine 5 hm. < dibutyltin 1 hm. < float carbonate calcium 35 hm. < antibacterial AMFOTERICIN 1 hm. < Resulting parameters lightweight layer: Bulk density 300 kgm thickness 6 mm Character pores open to each other line transferred Preparation of PVC foam: rotor speed 210 / min inlet pressure 0.7 MPa system pressure 0.35 »MPa

Resulting parameters of shooting material:

thickness 7,6 mm Surface weight 2,515 kg Bulk density 281.0 kg Breaking force along 210 N across 205 N Tensile strength along 1.9 MPa across 1.7 MPa extensibility along 94.6% across 92.4% Compression resistance 32,2 kPa hysteresis 34.2%

Permanent deformation Hardness

Reflection elasticity Water vapor permeability

6.9%

15,0 Sh 31,0%

-2 -1

7.8 mg.cm .h

Example 4

The lightweight gunfire material, especially for tennis sport shoes, was created from spot-bonded layers. The first textile layer consisted of a PAD / Vs-based overlay and the second layer of mechanically polished polyvinyl chloride containing the following components:

polyvinyl chloride paste-forming polyvinyl chloride suspension dibutyl phthalate sodium oleate and triethanolamine (1: 1 ratio) lead oleate and dibutyltin dilaurate (1: 1)

90 wt. 10 wt.

hm. 4 wt. 1 wt.

a.

d.

d.

d.

d.

silica antibacterial TRICHOMICIN 5 wt. d. 0.5 wt. d. Resulting parameters lightweight layer: thickness 2.2 mm Bulk density 340.0 kg / m ³ Character pores open, interconnected Preparation of PVC foam: rotor speed 200 / min. inlet pressure 0.7 MPa system pressure 0.34 MPa Resulting parameters insole material: thickness 3,92 mm Surface weight 1,236 kg.m Bulk density 305.2 kg / m ³ Breaking force along 128 N across 123 N Tensile strength along 1.7 MPa across 1.6 MPa Elongation along 43.0% across 46.0% Coherence of layers Late, 400.0 N.m ^-1 across 385.0 Nm @ ^-1 Resistance to compression 59.7 kPa hysteresis 27.8% Permanent deformation 9.8% hardness 18,0 Sh Reflection elasticity 18.0% Water vapor permeability ’- 2 8.4 mg.cm .h

The plasticizers of organic acids esters of carbon atoms 16 to 23 can also be used as wetting agents. Other alkaline salts of fatty acids and / or alkylamines having a carbon number of 16 to 23 also act as foam stabilizers. and / or metal soaps of the elements IV. groups of the periodic system. The oxides and carbonates of the elements II are also used as fillers. and IV. groups of the periodic system. Preferably, all antifungal antibiotics can be used as antibacterial and antifungal agents.

Claims (3)

OBJECT OF THE INVENTION Drawn insole material, in particular for sports shoes and leisure shoes, comprising a textile facing layer and a foam backing layer, characterized in that the textile facing layer is spot-bonded to a mechanically milled softened polyvinyl chloride layer containing 60 to 95 wt. 2 to 5 wt. parts of foam stabilizers and 0.1 to 2 wt. thermostabilizer parts based on the weight of the polyvinyl chloride, wherein the polyvinyl chloride layer has a bulk density of 100 to 800 kg / m, a hardness of 10 to 30 Sh, resistance to compression 30 to 70 kPa, a hysteresis of 20 to 40%, a permanent deformation of up to 15% of the total depth and a water vapor permeability of at least 3.5 mg / cm @ 3. 2. The expanded insole material of claim 1, wherein the mechanically expanded polyvinyl chloride layer comprises 0.01 to 3 wt. parts of antibacterial and antifungal additives, based on the weight of polyvinyl chloride. 3. The lined insole material according to claim 1, characterized in that the mechanically lined softened layer of polyvinyl chloride contains 0.1 to 40 wt. % by weight of the polyvinyl chloride.