WO2015050134A1 - 圧縮耐久性に優れた網状構造体 - Google Patents
圧縮耐久性に優れた網状構造体 Download PDFInfo
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- WO2015050134A1 WO2015050134A1 PCT/JP2014/076150 JP2014076150W WO2015050134A1 WO 2015050134 A1 WO2015050134 A1 WO 2015050134A1 JP 2014076150 W JP2014076150 W JP 2014076150W WO 2015050134 A1 WO2015050134 A1 WO 2015050134A1
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Images
Classifications
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Definitions
- the present invention is excellent in repeated compression durability, such as office chairs, furniture, sofas, beddings such as beds, cushioning materials used for vehicle seats such as trains, automobiles, motorcycles, strollers, child seats, floor mats, collisions and pinchings.
- the present invention relates to a net-like structure suitable for an impact absorbing mat such as an anti-skid member.
- foam-crosslinked urethane is widely used as a cushioning material for furniture, bedding such as beds, and seats for vehicles such as trains, automobiles, and motorcycles.
- Foam-crosslinked urethane has good durability as a cushioning material, but has poor moisture permeability and air permeability, and has a problem of being easily stuffy due to heat storage.
- it since it is not thermoplastic, it is difficult to recycle. For this reason, when it is incinerated, problems have been pointed out such as damage to the incinerator and cost for removing toxic gases. Therefore, landfill is often disposed, but there is a problem that the landfill site is limited and the cost is increased because it is difficult to stabilize the ground. Further, various problems have been pointed out, such as pollution problems of chemicals used during production, residual chemicals after foaming, and odors associated therewith, although the processability is excellent.
- Patent Documents 1 and 2 disclose a network structure. This can solve various problems derived from the above-mentioned foam-crosslinked urethane, and is excellent in cushioning performance.
- the cyclic compression endurance characteristic is 20% or less in the 20,000-time repeated compression residual strain, which is excellent in performance with respect to the repeated compression residual strain, but the hardness retention at 50% compression after repeated compression is about 83%. There is a problem that the hardness after repeated use is lowered.
- Patent Document 3 discloses a method for producing a low resilience cushion using a polyolefin-based thermoplastic elastomer. In this manufacturing method, it is possible to obtain a network structure having good low resilience characteristics, but it is difficult to manufacture a network structure excellent in high resilience characteristics.
- the present invention has been made against the background of the above-described problems of the prior art, and provides a network structure having a small repeated compression residual strain, a high hardness retention after repeated compression, and an excellent repeated compression durability. It is to be an issue.
- the present invention is as follows. 1. Continuously having a fineness of 100 dtex or more and 60000 dtex or less consisting of at least one thermoplastic elastic resin selected from the group consisting of polyolefin-based thermoplastic elastomers, ethylene-vinyl acetate copolymers, polyurethane-based thermoplastic elastomers and polyamide-based thermoplastic elastomers.
- a three-dimensional random loop joined structure in which a linear body is twisted to form a random loop, and the respective loops are brought into contact with each other in a molten state, and the apparent density is 0.005 g / cm 3 to 0.20 g / cm. 3 , a 50% constant displacement repeated compression residual strain is 15% or less, and a 50% compression hardness retention after 50% constant displacement repeated compression is 85% or more.
- 2. The network structure according to 1 above, wherein the hysteresis loss is 35% or less. 3.
- the three-dimensional random loop joint structure is made of a polyurethane-based thermoplastic elastomer or a polyamide-based thermoplastic elastomer, and the hardness retention at 25% compression after 50% constant displacement repeated compression is 75% or more, according to 1 or 2 above Reticulated structure. 6). 6. The network structure according to any one of 1 to 5 above, wherein the thickness of the network structure is 10 mm or more and 300 mm or less. 7). 7. The network structure according to any one of 1 to 6 above, wherein the cross-sectional shape of the continuous linear body constituting the network structure is a hollow section and / or a modified section.
- the network structure according to the present invention is a network structure with small repeated compression residual strain, high hardness retention after repeated compression, and excellent in repeated compression durability. is there. Furthermore, it is a network structure excellent in high resilience. Due to this excellent repeated compression durability and high resilience, cushioning materials used in office chairs, furniture, sofas, bedding such as beds, seats for vehicles such as trains, automobiles, motorcycles, strollers, child seats, floor mats and collisions It has become possible to provide a network structure suitable for a shock absorbing mat such as a pinching prevention member.
- the network structure of the present invention has a fineness composed of at least one thermoplastic elastic resin selected from the group consisting of polyolefin-based thermoplastic elastomers, ethylene-vinyl acetate copolymers, polyurethane-based thermoplastic elastomers, and polyamide-based thermoplastic elastomers.
- a three-dimensional random loop bonded structure in which a continuous linear body of 100 dtex or more and 60000 dtex or less is twisted to form a random loop, and each loop is brought into contact with each other in a molten state, and the apparent density is 0.005 g /
- a network structure having a cm 3 to 0.20 g / cm 3 , a 50% constant displacement repeated compression residual strain of 15% or less, and a 50% compression hardness retention after 85% constant displacement repeated compression of 85% or more. Is the body.
- the polymer constituting the network structure is preferably a low density polyethylene resin having a specific gravity of 0.94 g / cm 3 or less, particularly from ethylene and an ⁇ -olefin having 3 or more carbon atoms. It is preferably made of an ethylene / ⁇ -olefin copolymer resin.
- the ethylene / ⁇ -olefin copolymer of the present invention is preferably a copolymer described in JP-A-6-293131, and is obtained by copolymerizing ethylene and an ⁇ -olefin having 3 or more carbon atoms. It is.
- Examples of the ⁇ -olefin having 3 or more carbon atoms include propylene, butene-1, pentene-1, hexene-1, 4-methyl-1-pentene, heptene-1, octene-1, nonene-1, and decene.
- ⁇ -olefins Two or more of these can be used, and these ⁇ -olefins are usually copolymerized in an amount of 1 to 40% by weight.
- This copolymer can be obtained by copolymerizing ethylene and an ⁇ -olefin using a catalyst system having a specific metallocene compound and an organometallic compound as basic components.
- a catalyst system having a specific metallocene compound and an organometallic compound as basic components.
- two or more kinds of polymers polymerized by the above method, and polymers such as hydrogenated polybutadiene and hydrogenated polyisoprene can be blended.
- an antioxidant, an antifungal agent, a flame retardant, and the like can be added as necessary.
- the specific gravity of the polyolefin-based thermoplastic elastomer of the present invention exceeds 0.94 g / cm 3 , the cushion material tends to become hard, which is not preferable. More preferably, it is 0.935 g / cm 3 or less, and further 0.93 g / cm 3 or less is preferable. Although a minimum is not specifically limited, 0.8 g / cm ⁇ 3 > or more is preferable from a viewpoint of intensity
- the component comprising the polyolefin-based thermoplastic elastomer constituting the network structure excellent in repeated compression durability of the present invention preferably has an endothermic peak below the melting point in the melting curve measured with a differential scanning calorimeter. Those having an endothermic peak below the melting point are significantly improved in heat resistance and sag resistance than those having no endothermic peak.
- a preferable polyolefin-based thermoplastic elastomer of the present invention hexane, hexene, and ethylene are polymerized by a known method using a metallocene compound as a catalyst. If the number is reduced, the crystallinity of the hard segment is improved, plastic deformation is difficult, and heat sag resistance is improved.
- annealing at a temperature at least 10 ° C. lower than the melting point results in higher heat resistance. Improves drooling.
- the sample can be heat-treated at a temperature lower by at least 10 ° C. than the melting point, but the heat distortion resistance is further improved by applying compressive strain.
- An endothermic peak is more clearly expressed in a melting curve measured with a differential scanning calorimeter at a temperature not lower than the room temperature and not higher than the melting point of the cushion layer subjected to such treatment. In the case where annealing is not performed, an endothermic peak is not clearly expressed in the melting curve from room temperature to the melting point.
- the polymer constituting the network structure preferably has a specific gravity of 0.91 to 0.965.
- the specific gravity varies depending on the vinyl acetate content, and the vinyl acetate content is preferably 1 to 35%. If the vinyl acetate content is small, rubber elasticity may be poor. From such a viewpoint, the vinyl acetate content is preferably 1% or more, more preferably 2% or more, and further preferably 3% or more. If the vinyl acetate content is increased, the rubber elasticity is excellent, but the melting point is lowered and the heat resistance may be poor. Therefore, the vinyl acetate content is preferably 35% or less, more preferably 30% or less, and preferably 26% or less. Further preferred.
- the ethylene vinyl acetate copolymer of the present invention can also copolymerize an ⁇ -olefin having 3 or more carbon atoms.
- the ⁇ -olefin having 3 or more carbon atoms include propylene, butene-1, pentene-1, hexene-1, 4-methyl-1-pentene, heptene-1, octene-1, nonene-1, and decene.
- polymers polymerized by the above method and polymer modifiers such as hydrogenated polybutadiene and hydrogenated polyisoprene can be blended.
- a lubricant, an antioxidant, an antifungal agent, a flame retardant and the like can be added as necessary.
- the component comprising the ethylene-vinyl acetate copolymer constituting the network structure excellent in repeated compression durability of the present invention preferably has an endothermic peak below the melting point in the melting curve measured with a differential scanning calorimeter. . Those having an endothermic peak below the melting point are significantly improved in heat resistance and sag resistance than those having no endothermic peak.
- the preferred ethylene vinyl acetate copolymer of the present invention has a vinyl acetate content ratio of preferably 35% or less, more preferably 30% or less, and even more preferably 26% or less. When the vinyl acetate content ratio is reduced, the crystallinity of the hard segment is improved, the plastic deformation is difficult, and the heat sag resistance is improved.
- the heat sag resistance is further improved.
- the sample can be heat-treated at a temperature lower by at least 10 ° C. than the melting point, but the heat distortion resistance is further improved by applying compressive strain.
- An endothermic peak is more clearly expressed in a melting curve measured with a differential scanning calorimeter at a temperature not lower than the room temperature and not higher than the melting point of the cushion layer subjected to such treatment. In the case where annealing is not performed, an endothermic peak is not clearly expressed in the melting curve from room temperature to the melting point.
- the polyurethane-based thermoplastic elastomer of the present invention includes (A) a polyether having a hydroxyl group at the terminal having a number average molecular weight of 1000 to 6000 and / or in the presence or absence of a normal solvent (dimethylformamide, dimethylacetamide, etc.) and / or Polyurethane elastomer in which (B) a polypolymer containing diamine as a main component is chain-extended to a prepolymer in which both ends are isocyanate groups obtained by reacting a polyester and (B) a polyisocyanate containing organic diisocyanate as a main component.
- a polyether having a hydroxyl group at the terminal having a number average molecular weight of 1000 to 6000 and / or in the presence or absence of a normal solvent (dimethylformamide, dimethylacetamide, etc.) and / or Polyurethane elastomer in which (B) a polypolymer containing di
- polyesters and polyethers As the polyesters and polyethers (A), polybutylene adipate copolymer polyesters having a number average molecular weight of about 1000 to 6000, preferably 1300 to 5000, polyethylene glycol, polypropylene glycol, polytetra Polyalkylenediols such as glycols consisting of methylene glycol and ethylene oxide-propylene oxide copolymers are preferred.
- polyisocyanate (B) conventionally known polyisocyanates can be used. An isocyanate mainly composed of diphenylmethane 4,4′-diisocyanate may be used, and if necessary, a conventionally known triisocyanate may be added in a small amount.
- polyamine (C) known diamines such as ethylenediamine and 1,2-propylenediamine are mainly used, and a small amount of triamine and tetraamine may be used in combination as required. These polyurethane-based thermoplastic elastomers may be used alone or in combination of two or more.
- the melting point of the polyurethane-based thermoplastic elastomer of the present invention is preferably 140 ° C. or higher, which can maintain heat resistance, and more preferably 150 ° C. or higher because the heat durability is improved.
- an antioxidant, a light-resistant agent and the like can be added to improve durability. It is also effective to increase the molecular weight of the polyurethane-based thermoplastic elastomer in order to improve heat resistance and sag resistance.
- the polyurethane thermoplastic elastomers of the present invention include those obtained by blending non-elastomeric components with the above polyurethane thermoplastic elastomers, those obtained by copolymerization, those obtained by using polyolefin components as soft segments, and the like. Furthermore, what added various additives etc. to the polyurethane-type thermoplastic elastomer as needed is also included.
- the soft segment content of the polyurethane-based thermoplastic elastomer is preferably 15% by weight or more, more preferably 25%. % By weight or more, more preferably 30% by weight or more, most preferably 40% by weight or more, and preferably 80% by weight or less, more preferably 70% by weight from the viewpoint of ensuring hardness and heat and sag resistance. % Or less.
- the component comprising the polyurethane-based thermoplastic elastomer constituting the network structure having excellent repeated compression durability of the present invention preferably has an endothermic peak below the melting point in the melting curve measured with a differential scanning calorimeter. Those having an endothermic peak below the melting point are significantly improved in heat resistance and sag resistance than those having no endothermic peak.
- preferred polyurethane-based thermoplastic elastomers of the present invention include those containing 90 mol% or more of terephthalic acid or naphthalene 2,6-dicarboxylic acid having a rigid hard segment acid component, more preferably terephthalic acid or naphthalene.
- the content of 2,6-dicarboxylic acid is 95 mol% or more, more preferably 100 mol%, and the glycol component is transesterified and then polymerized to the required degree of polymerization, and then the polyalkylene diol preferably has an average molecular weight of 500 More than 5000, more preferably 700 to 3000, more preferably 800 to 1800 polytetramethylene glycol is preferably 15% to 80% by weight, more preferably 25% to 70% by weight, and still more preferably Is 30 wt% or more and 70 wt%
- the copolymerization amount is most preferably 40% by weight or more and 70% by weight or less, if the hard segment has a high content of terephthalic acid or naphthalene 2,6-dicarboxylic acid which is rigid in the acid component of the hard segment, The crystallinity is improved, the plastic deformation is difficult, and the heat sag resistance is improved.
- the heat sag resistance is further improved by annealing at a temperature lower by at least 10 ° C. than the melting point after the fusion bonding.
- the annealing treatment it is sufficient that the sample can be heat-treated at a temperature lower by at least 10 ° C. than the melting point, but the heat distortion resistance is further improved by applying compressive strain.
- An endothermic peak is more clearly expressed in a melting curve measured with a differential scanning calorimeter at a temperature not lower than the room temperature and not higher than the melting point of the cushion layer subjected to such treatment. In the case where annealing is not performed, an endothermic peak is not clearly expressed in the melting curve from room temperature to the melting point.
- the sag resistance is good in applications that can be relatively high temperature, such as a vehicle cushion in which a heater is used and a floor mat that is floor heated. Useful.
- polyamide-based thermoplastic elastomer of the present invention examples include those in which polyamide is used as a hard segment, polyol is used as a soft segment, and both are copolymerized.
- the hard segment polyamide compound include at least one polyamide oligomer obtained from a reaction product such as a lactam compound and a dicarboxylic acid or a diamine and a dicarboxylic acid.
- the soft segment includes at least one or more of polyether polyol, polyester polyol, polycarbonate polyol, and the like.
- lactam compound examples include at least one of aliphatic lactams having 5 to 20 carbon atoms such as ⁇ -butyrolactam, ⁇ -caprolactam, ⁇ -heptalactam, ⁇ -undecalactam, and ⁇ -lauryllactam.
- Dicarboxylic acids such as oxalic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid and other aliphatic dicarboxylic acids having 2 to 20 carbon atoms, and cyclohexanedicarboxylic acid and other fats
- dicarboxylic acid compound such as an aromatic dicarboxylic acid such as a cyclic dicarboxylic acid, terephthalic acid, isophthalic acid, and orthophthalic acid.
- Diamines include ethylenediamine, trimethylenediamine, tetramethylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecanemethylenediamine, 2,2,4-trimethylhexa
- aliphatic diamines such as methylene diamine, 2,4,4-trimethylhexamethylene diamine, and 3-methylpentamethylene diamine
- aromatic diamines such as meta-xylene diamine.
- Polyether polyols such as polyethylene glycol having a number average molecular weight of about 300 to 5,000, polypropylene glycol, polytetramethylene glycol, glycol comprising ethylene oxide-propylene oxide copolymer, etc. Among these, at least one of them can be mentioned.
- the polycarbonate diol is a reaction product of a low molecular diol and a carbonate compound, and examples thereof include those having a number average molecular weight of about 300 to 5,000.
- Low molecular diols include ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,6- Of aliphatic diols such as hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol and 1,10-decanediol, and alicyclic diols such as cyclohexanedimethanol and cyclohexanediol There may be mentioned at least one low molecular diol.
- Examples of the carbonate compound include at least one of dialkyl carbonate, alkylene carbonate, diaryl carbonate, and the like.
- Examples of the polyester polyol include at least one of polyester diols such as polylactone having a number average molecular weight of about 300 to 5,000. You may use said block copolymer individually or in mixture of 2 or more types. Furthermore, blends of non-elastomeric components, copolymers, and the like can be used in the present invention.
- the melting point of the polyamide-based thermoplastic elastomer of the present invention is preferably 120 ° C. or higher, which can maintain heat resistance, and more preferably 130 ° C. or higher because the heat durability is improved.
- an antioxidant, a light-resistant agent and the like can be added to improve durability. It is also effective to increase the molecular weight of the polyamide-based thermoplastic elastomer in order to improve heat resistance and sag resistance.
- the polyamide thermoplastic elastomers of the present invention include those obtained by blending non-elastomeric components with the above-mentioned polyamide thermoplastic elastomers, those obtained by copolymerization, those obtained by using polyolefin components as soft segments, and the like. Furthermore, what added various additives etc. to the polyamide-type thermoplastic elastomer as needed is also included.
- the soft segment content of the polyamide-based thermoplastic elastomer is preferably 5% by weight or more, more preferably 10% by weight or more.
- the amount is preferably 15% by weight or more, most preferably 20% by weight or more, and is preferably 80% by weight or less, more preferably 70% by weight or less from the viewpoint of ensuring hardness and heat sag resistance.
- the component comprising the polyamide-based thermoplastic elastomer constituting the network structure excellent in repeated compression durability of the present invention preferably has an endothermic peak below the melting point in the melting curve measured with a differential scanning calorimeter. Those having an endothermic peak below the melting point are significantly improved in heat resistance and sag resistance than those having no endothermic peak.
- polyamide-based thermoplastic elastomer of the present invention those containing 90 mol% or more of polyamide 6, polyamide 11 or polyamide 12 in the hard segment, more preferably 95 mol% or more, particularly preferably 100 mol%, glycol
- the polymer is polymerized to the required degree of polymerization, and then, as a polyalkylene diol, polytetramethylene having an average molecular weight of preferably 500 to 5000, more preferably 700 to 3000, and still more preferably 800 to 2000 5 to 80% by weight of glycol, more preferably 10 to 70% by weight, more preferably 15 to 70% by weight, and still more preferably 20 to 70% by weight
- a polyalkylene diol polytetramethylene having an average molecular weight of preferably 500 to 5000, more preferably 700 to 3000, and still more preferably 800 to 2000 5 to 80% by weight of glycol, more preferably 10 to 70% by weight, more preferably 15 to 70% by weight, and still more preferably 20 to 70% by weight
- the heat sag resistance is further improved by annealing at a temperature of at least 10 ° C. lower than the melting point after melting and heat bonding. To do. In the annealing treatment, it is sufficient that the sample can be heat-treated at a temperature lower by at least 10 ° C. than the melting point, but the heat distortion resistance is further improved by applying compressive strain. An endothermic peak is more clearly expressed in a melting curve measured with a differential scanning calorimeter at a temperature not lower than the room temperature and not higher than the melting point of the cushion layer subjected to such treatment. In the case where annealing is not performed, an endothermic peak is not clearly expressed in the melting curve from room temperature to the melting point.
- the sag resistance is good in applications that can be relatively high temperature, such as a vehicle cushion in which a heater is used and a floor mat that is floor heated. Useful.
- the fineness of the continuous linear body constituting the network structure of the present invention is too small to maintain the necessary hardness when used as a cushioning material, conversely, if the fineness is too large, it becomes too hard. It is necessary to set to an appropriate range.
- the fineness is 100 dtex or more, preferably 300 dtex or more. When the fineness is less than 100 dtex, the fineness is too fine, and the fineness and soft touch are good, but it is difficult to secure the necessary hardness for the network structure. Further, the fineness is 60000 dtex or less, preferably 50000 dtex or less. If the fineness exceeds 60000 dtex, the network structure can have a sufficient hardness, but the network structure becomes rough and other cushion performance may be inferior.
- Apparent density of the network structure of the present invention is 0.005g / cm 3 ⁇ 0.20g / cm 3, preferably 0.01g / cm 3 ⁇ 0.18g / cm 3, more preferably 0.02 g / The range is from cm 3 to 0.15 g / cm 3 .
- the hysteresis loss of the network structure of the present invention is preferably 35% or less, more preferably 34% or less, still more preferably 33% or less, and most preferably 30% or less. If the hysteresis loss exceeds 35%, it may be difficult to feel high resilience when sitting, and the performance as a high resilience cushion becomes insufficient, which is not preferable.
- the lower limit of hysteresis loss is not particularly defined, but in the network structure obtained in the present invention, 1% or more is preferable, and 5% or more is more preferable. If the hysteresis loss is less than 1%, the rebound is too high and the cushioning property is lowered, so 1% or more is preferable, and 5% or more is more preferable.
- the thickness of the network structure of the present invention is preferably 10 mm or more, more preferably 20 mm or more. If the thickness is less than 10 mm, it may become too thin when used as a cushioning material, resulting in a feeling of bottoming.
- the upper limit of the thickness is preferably 300 mm or less, more preferably 200 mm or less, and still more preferably 120 mm or less, in view of the manufacturing apparatus.
- the 70 ° C. compression residual strain is preferably 35% or less.
- the 70 ° C. compressive residual strain exceeds 35%, the characteristics as a network structure used for the intended cushion material are not satisfied.
- the lower limit of the 70 ° C. compressive residual strain is not particularly defined, but is 1% or more in the network structure obtained in the present invention.
- the 50% constant displacement cyclic compressive residual strain of the network structure of the present invention is 15% or less, preferably 10% or less. If the 50% constant displacement repeated compressive residual strain exceeds 15%, the thickness decreases when used for a long time, which is not preferable as a cushioning material.
- the lower limit value of the 50% constant displacement repeated compression residual strain is not particularly specified, but is 1% or more in the network structure obtained in the present invention.
- the hardness at 50% compression of the network structure of the present invention is preferably 10 N / ⁇ 200 or more and 1000 N / ⁇ 200 or less. If the hardness at 50% compression is less than 10 N / ⁇ 200, a feeling of bottoming may be felt. Moreover, when it exceeds 1000 N / ⁇ 200, it may be too hard to impair the cushioning property.
- the hardness at the time of 25% compression of the network structure of the present invention is preferably 5 N / ⁇ 200 or more and 500 N / ⁇ 200 or less. If the hardness at 25% compression is less than 5 N / ⁇ 200, the cushion performance may be insufficient due to being too soft. On the other hand, if it exceeds 500 N / ⁇ 200, the cushioning property may be impaired due to being too hard.
- the 50% compression hardness retention after 50% constant displacement repeated compression of the network structure of the present invention is 85% or more, preferably 88% or more, more preferably 90% or more. If the hardness retention at 50% compression after 50% constant displacement repeated compression is less than 85%, the cushioning material may have a reduced hardness due to long-term use, and a feeling of bottoming may appear.
- the upper limit of the 50% compression hardness retention after 50% constant displacement repeated compression is not particularly specified, but in the network structure obtained in the present invention, it is preferably 120% or less, more preferably 115% or less, and 110%. The following are most preferred.
- the hardness retention rate at 50% compression may exceed 100% because the thickness of the network structure decreases due to repeated compression and the apparent density of the network structure after repeated compression increases, This is because the hardness may increase.
- the cushioning property is changed, so that it is preferably 120% or less, more preferably 115% or less, and most preferably 110% or less.
- the 25% compression hardness retention after 50% constant displacement repeated compression is preferably 80% or more, more preferably 82% or more, and 83% or more. More preferably, 85% or more is most preferable. If the hardness retention at 25% compression after 50% constant displacement repeated compression is less than 80%, the cushioning material may decrease in hardness over long periods of time, which may lead to a change in sitting comfort.
- the upper limit of the hardness retention at 25% compression after 50% constant displacement repeated compression is not particularly defined, but in the network structure obtained in the present invention, it is preferably 120% or less, more preferably 110% or less.
- the hardness retention rate at 25% compression may exceed 100% because the thickness of the network structure decreases due to repeated compression and the apparent density of the network structure after repeated compression increases, This is because the hardness may increase.
- the cushioning property is changed, so 120% or less is preferable, and 110% or less is more preferable.
- the hardness retention at the time of 50% compression after the 50% constant displacement repeated compression is 85% or more, and at the time of 25% compression after the 50% constant displacement repeated compression.
- the hardness retention is 80% or more.
- the difference between the network structure having a small 50% constant displacement cyclic compression strain and the network structure of the present invention that has been known so far is that the network structure of the present invention has a This is because the fusion is strengthened and the contact strength between the continuous linear bodies is increased. By increasing the contact strength between the continuous linear bodies constituting the network structure, the hardness retention after 50% constant displacement repeated compression of the network structure could be improved. That is, in the network structure known so far, many contacts between continuous linear bodies constituting the network structure were broken by repeated compression by 50% constant displacement repeated compression. It is thought that the body was able to reduce the destruction of the contacts compared to the conventional one.
- the hardness retention at 25% compression after 50% constant displacement repeated compression is preferably 65% or more, more preferably 68% or more, and 70% or more. Is more preferable, and 75% or more is most preferable. If the hardness retention at 25% compression after 50% constant displacement repetitive compression is less than 65%, the hardness of the cushion material may decrease due to long-term use, leading to a change in sitting comfort.
- the upper limit of the hardness retention at 25% compression after 50% constant displacement repeated compression is not particularly defined, but in the network structure obtained in the present invention, it is preferably 120% or less, more preferably 110% or less.
- the hardness retention rate at 25% compression may exceed 100% because the thickness of the network structure decreases due to repeated compression and the apparent density of the network structure after repeated compression increases, This is because the hardness may increase.
- the cushioning property is changed, so 120% or less is preferable, and 110% or less is more preferable.
- the hardness retention at 50% compression after the 50% constant displacement repeated compression is 85% or more, and 25% compression after 50% constant displacement repeated compression. It has a characteristic that the hardness retention is 65% or more.
- the difference between the network structure having a small 50% constant displacement cyclic compression strain and the network structure of the present invention that has been known so far is that the network structure of the present invention has a This is because the fusion is strengthened and the contact strength between the continuous linear bodies is increased. By increasing the contact strength between the continuous linear bodies constituting the network structure, the hardness retention after 50% constant displacement repeated compression of the network structure could be improved. That is, in the network structure known so far, many contacts between continuous linear bodies constituting the network structure were broken by repeated compression by 50% constant displacement repeated compression. It is thought that the body was able to reduce the destruction of the contacts compared to the conventional one.
- the hardness retention at 25% compression after 50% constant displacement repeated compression is preferably 75% or more, more preferably 78% or more, and more preferably 80% or more. More preferably, 85% or more is most preferable. If the hardness retention at 25% compression after 50% constant displacement repeated compression is less than 75%, the cushioning material may decrease in hardness over long periods of time, which may lead to a change in sitting comfort.
- the upper limit of the hardness retention at 25% compression after 50% constant displacement repeated compression is not particularly defined, but in the network structure obtained in the present invention, it is preferably 120% or less, more preferably 110% or less.
- the hardness retention rate at 25% compression may exceed 100% because the thickness of the network structure decreases due to repeated compression and the apparent density of the network structure after repeated compression increases, This is because the hardness may increase.
- the cushioning property is changed, so 120% or less is preferable, and 110% or less is more preferable.
- the hardness retention at the time of 50% compression after the 50% constant displacement repeated compression is 85% or more, and at the time of 25% compression after the 50% constant displacement repeated compression.
- the hardness retention rate is 75% or more.
- the difference between the network structure having a small 50% constant displacement cyclic compression strain and the network structure of the present invention that has been known so far is that the network structure of the present invention has a This is because the fusion is strengthened and the contact strength between the continuous linear bodies is increased. By increasing the contact strength between the continuous linear bodies constituting the network structure, the hardness retention after 50% constant displacement repeated compression of the network structure could be improved. That is, in the network structure known so far, many contacts between continuous linear bodies constituting the network structure were broken by repeated compression by 50% constant displacement repeated compression. It is thought that the body was able to reduce the destruction of the contacts compared to the conventional one.
- the 25% compression hardness retention after 50% constant displacement repeated compression is preferably 75% or more, more preferably 78% or more, and still more preferably. Is 80% or more, and most preferably 85% or more. If the hardness retention at 25% compression after 50% constant displacement repeated compression is less than 75%, the cushioning material may decrease in hardness over long periods of time, which may lead to a change in sitting comfort.
- the upper limit value of the hardness retention at 25% compression after 50% constant displacement repeated compression is not particularly specified, but in the network structure obtained in the present invention, it is preferably 120% or less, more preferably 115% or less, and 110%. The following is more preferable.
- the hardness retention rate at 25% compression may exceed 100% because the thickness of the network structure decreases due to repeated compression and the apparent density of the network structure after repeated compression increases, This is because the hardness may increase.
- the cushioning property is changed, so that it is preferably 120% or less, more preferably 115% or less, and even more preferably 110% or less.
- the hardness retention at 50% compression after the 50% constant displacement repeated compression is 85% or more, and 25% after 50% constant displacement repeated compression. It has the characteristic that the hardness retention during compression is 75% or more.
- the difference between the network structure having a small 50% constant displacement cyclic compression strain and the network structure of the present invention that has been known so far is that the network structure of the present invention has a This is because the fusion is strengthened and the contact strength between the continuous linear bodies is increased. By increasing the contact strength between the continuous linear bodies constituting the network structure, the hardness retention after 50% constant displacement repeated compression of the network structure could be improved. That is, in the network structure known so far, many contacts between continuous linear bodies constituting the network structure were broken by repeated compression by 50% constant displacement repeated compression. It is thought that the body was able to reduce the destruction of the contacts compared to the conventional one.
- the network structure of the present invention has a characteristic that the hysteresis loss is 35% or less.
- the fusion between continuous linear bodies constituting the network structure is strengthened, and the contact strength between the continuous linear bodies is increased.
- the mechanism of increasing the contact strength and reducing the hysteresis loss is complicated, and not all are clarified, but are considered as follows.
- the network structure of the present invention having a high hardness retention after 50% constant displacement repeated compression is obtained, for example, as follows.
- the network structure is obtained based on a known method described in JP-A-7-68061.
- at least one thermoplastic elastic resin selected from the group consisting of a polyolefin-based thermoplastic elastomer, an ethylene-vinyl acetate copolymer, a polyurethane-based thermoplastic elastomer, and a polyamide-based thermoplastic elastomer from a multi-row nozzle having a plurality of orifices. It is distributed to the nozzle orifice, discharged downward from the nozzle at a spinning temperature higher than the melting point of the thermoplastic elastic resin by 20 ° C.
- the obtained network structure can be annealed.
- the drying process of the network structure may be an annealing process.
- One means for obtaining a network structure with increased contact strength is, for example, at least one selected from the group consisting of polyolefin-based thermoplastic elastomers, ethylene-vinyl acetate copolymers, polyurethane-based thermoplastic elastomers, and polyamide-based thermoplastic elastomers.
- polyolefin-based thermoplastic elastomers ethylene-vinyl acetate copolymers
- polyurethane-based thermoplastic elastomers polyurethane-based thermoplastic elastomers
- polyamide-based thermoplastic elastomers polyamide-based thermoplastic elastomers
- thermoplastic elastic resin selected from the group consisting of polyolefin-based thermoplastic elastomers, ethylene-vinyl acetate copolymers, polyurethane-based thermoplastic elastomers and polyamide-based thermoplastic elastomers
- the length of the heat retaining region under the nozzle is preferably 20 mm or more, more preferably 35 mm or more, and further preferably 50 mm or more.
- the upper limit of the length of the heat retaining region is preferably 70 mm or less.
- the length of the heat insulation region is 20 mm or more, the fusion of the continuous linear bodies of the obtained network structure is strengthened, the contact strength between the continuous linear bodies is increased, and as a result, the network structure is repeatedly compressed. Durability can be improved. If the length of the heat retaining region is less than 20 mm, the contact strength is not improved to the extent that repeated compression durability can be satisfied. Further, when the length of the heat retaining region exceeds 70 mm, the surface quality may be deteriorated.
- This thermal insulation region can be made into a thermal insulation region by utilizing the heat amount brought into the spin pack and the polymer, or the temperature of the fiber falling region directly under the nozzle can be controlled by heating the thermal insulation region with a heater.
- the heat insulation region may be an iron plate, an aluminum plate, a ceramic plate, or the like, and the heat insulation body may be installed so as to surround the continuous linear body falling under the nozzle. It is more preferable that the heat retaining body is made of the above-described materials and keeps them warm with a heat insulating material. In consideration of the heat retaining effect, it is preferable to install the heat retaining region from the position below 50 mm below the nozzle, more preferably 20 mm or less, and more preferably from just below the nozzle.
- the aluminum plate is kept warm by enclosing it with a length of 20 mm from directly under the nozzle so as not to come into contact with the yarn, and the aluminum plate is further kept warm with a heat insulating material. It is.
- the net surface temperature around the dropping position of the continuous linear body of the take-up conveyor net is raised, or in the cooling tank around the dropping position of the continuous linear body For example, raising the cooling water temperature.
- the surface temperature of the take-up conveyor net is preferably 40 ° C. or higher, more preferably 50 ° C. or higher, and more preferably 60 ° C. or higher when the network structure is made of a polyolefin-based thermoplastic elastomer or ethylene vinyl acetate copolymer.
- the temperature is preferably 80 ° C.
- the conveyor net temperature is preferably not higher than the melting point of the polymer, and more preferably not higher than 20 ° C. of the melting point.
- the cooling water temperature is preferably 25 ° C. or higher when the network structure is made of a polyolefin-based thermoplastic elastomer or ethylene-vinyl acetate copolymer, and the network structure is made of a polyurethane-based thermoplastic elastomer or a polyamide-based thermoplastic elastomer. When it consists of a plastic elastomer, it is preferable to make it 80 degreeC or more.
- the continuous linear body constituting the network structure of the present invention may be a composite linear combination with another thermoplastic resin as long as the object of the present invention is not impaired.
- the composite form include composite linear bodies such as a sheath / core type, a side-by-side type, and an eccentric sheath / core type when the linear body itself is combined.
- the network structure of the present invention may have a multilayer structure as long as the object of the present invention is not impaired.
- the multilayer structure include a structure in which the surface layer and the back layer are composed of linear bodies having different finenesses, and a structure in which the surface layer and the back layer are composed of structures having different apparent densities.
- Examples of the multi-layering method include a method of stacking network structures and fixing them on a side ground, a method of melting and fixing by heating, a method of bonding with an adhesive, a method of binding with sewing or a band, and the like.
- the cross-sectional shape of the continuous linear body constituting the network structure of the present invention is not particularly limited, but a preferable anti-compression property and touch can be imparted by making it a hollow cross-section and / or an irregular cross-section.
- the network structure of the present invention is processed from a resin production process to a molded body within a range not deteriorating the performance, and at any stage of commercialization, deodorizing antibacterial, deodorizing, antifungal, coloring, aroma, flame retardant, moisture absorption and desorption
- the functional processing such as chemical addition can be performed.
- the network structure of the present invention thus obtained has excellent repeated compression durability with small repeated compression residual strain and high hardness retention. Furthermore, it has high resilience.
- Fineness A sample is cut into a size of 20 cm ⁇ 20 cm, and linear bodies are collected from 10 locations.
- Melting point (Tm) An endothermic peak (melting peak) temperature was determined from an endothermic curve measured using a differential scanning calorimeter Q200 manufactured by TA Instruments Co., Ltd. at a heating rate of 20 ° C./min.
- Hardness retention at 50% compression after 50% constant displacement repeated compression A sample is cut into a size of 30 cm ⁇ 30 cm, and the thickness before treatment is measured by the method described in (2).
- the 50% compression hardness measured for the sample whose thickness was measured by the method described in (5) is defined as the pre-treatment load (e).
- compression recovery was repeated in a cycle of 1 Hz up to 50% of the thickness before treatment in an environment of 20 ° C. ⁇ 2 ° C., and the sample after 80,000 times was left for 30 minutes,
- the hardness at 50% compression measured by the method described in 5) is defined as a post-treatment load (f).
- Hysteresis loss A sample is cut into a size of 30 cm ⁇ 30 cm, left unloaded in an environment of 20 ° C. ⁇ 2 ° C. for 24 hours, and then Tensilon manufactured by Orientec in an environment of 20 ° C. ⁇ 2 ° C. Using a pressure plate having a diameter of 200 mm and a thickness of 3 mm, compression of the central portion of the sample is started at a speed of 10 mm / min, and the thickness when the load reaches 5 N is measured to obtain the hardness meter thickness.
- the position of the pressure plate is set to the zero point, the pressure plate is compressed to 75% of the thickness of the hardness meter at a speed of 100 mm / min, and the pressure plate is returned to the zero point at the same speed without a hold time (first stress strain curve). . Subsequently, the sample is compressed to 75% of the hardness meter thickness at a speed of 100 mm / min without a hold time, and returned to the zero point at the same speed without a hold time (second stress strain curve). Hysteresis loss is determined according to the following equation, with the compression energy (WC) indicated by the second compression stress curve and the compression energy (WC ′) indicated by the second decompression stress curve.
- thermoplastic elastomers are polymerized with hexane, hexene and ethylene by a known method using a metallocene compound as a catalyst to form an ethylene / ⁇ -olefin copolymer, then added with 2% antioxidant, kneaded and pelletized. Obtained.
- the obtained polyolefin-based thermoplastic elastomer (thermoplastic elastomer A-1) had a specific gravity of 0.919 g / cm 3 and a melting point of 110 ° C.
- Vistamax 2125 thermaloplastic elastomer A-2 manufactured by ExxonMobil Chemical was used as a polypropylene thermoplastic elastomer was used.
- the polypropylene-based thermoplastic elastomer had a specific gravity of 0.87 g / cm 3 and a melting point of 162 ° C.
- the orifice shape is 2 mm outer diameter, 1.6 mm inner diameter, and the orifice of the triple bridge hollow forming cross section is a staggered arrangement of 5 mm pitch between holes,
- the obtained polyolefin-based thermoplastic elastomer (A-1) was discharged at a melting temperature of 210 ° C. at a single hole discharge rate of 1.5 g / min below the nozzle, passed through a heat retaining region 30 mm directly below the nozzle, and the nozzle surface A cooling water of 35 ° C.
- a stainless steel endless net with a width of 150 cm is arranged in parallel with an opening width of 50 mm so that a part of the pair of take-up conveyors comes out on the water surface.
- the surface temperature of the net is heated by an infrared heater so as to be 60 ° C., and the molten discharge line is bent to form a loop.
- a three-dimensional network structure is formed while fusing together, and the both sides of the molten network are sandwiched by a take-up conveyor and drawn into 35 ° C. cooling water at a rate of 0.8 m / min to flatten both sides. Then, it was cut into a predetermined size and dried and heat-treated with 70 ° C.
- the obtained network structure is formed of filaments having a hollow cross section, a hollow ratio of 24%, a fineness of 3000 dtex, an apparent density of 0.035 g / cm 3 , and a surface with a flattened thickness.
- 25% compression hardness is 110 N / ⁇ 200 mm
- 50% compression hardness is 219 N / ⁇ 200 mm
- repetitive compression residual strain is 9.7%
- 50% compression hardness retention after constant displacement repetitive compression is 88. .3%
- 50% after constant displacement repeated compression 25% compression hardness retention is 80.4%
- hysteresis loss is 27.7%
- the properties of the obtained network structure are shown in Table 1.
- the obtained network structure satisfied the requirements of the present invention and was a network structure excellent in repeated compression durability and high resilience.
- Example 1-2 A mesh shape obtained in the same manner as in Example 1-1, except that the heat retaining area immediately below the nozzle was 40 mm, the single hole discharge rate was 1.8 g / min, the nozzle surface-cooling water distance was 32 cm, and the cooling water temperature was 25 ° C.
- the structure is formed of a filament having a hollow cross section, a hollow ratio of 20%, a fineness of 2700 dtex, an apparent density of 0.045 g / cm 3 , and a flattened thickness of 48 mm, 25 % Compression hardness is 155 N / ⁇ 200 mm, 50% compression hardness is 288 N / ⁇ 200 mm, 50% constant displacement repeated compression residual strain is 8.5%, and 50% constant displacement repeated compression retention is 98%. The hardness retention at the time of 25% compression after compression of .3% and 50% constant displacement was 82.3%, and the hysteresis loss was 24.7%.
- the properties of the obtained network structure are shown in Table 1.
- the obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 1-3 The network structure obtained in the same manner as in Example 1-1 except that the single hole discharge rate was 2.0 g / min, the nozzle surface-cooling water distance was 28 cm, and the conveyor net surface temperature was 40 ° C. without heating.
- the cross-sectional shape is a hollow cross-section with a hollow ratio of 22%, a fineness of 3300 dtex, an apparent density of 0.040 g / cm 3 , a flattened thickness of 51 mm, and 25% compression Hardness is 137N / ⁇ 200mm, 50% compression hardness is 242N / ⁇ 200mm, 50% constant displacement repeated compression residual strain is 9.0%, 50% constant displacement repeated compression and 50% compression hardness retention is 91.1% The hardness retention at 25% compression after 50% constant displacement repeated compression was 83.5%, and the hysteresis loss was 33.5%.
- Table 1 The obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 1-4 Heat with an infrared heater so that the spinning temperature is 220 ° C, the heat retention area just below the nozzle is 40 mm, the single hole discharge rate is 3.2 g / min, the take-up speed is 1.0 m / min, and the conveyor net surface temperature is 80 ° C.
- the apparent density is 0.061 g / cm 3
- the flattened thickness is 50 mm
- the 25% compression hardness is 267 N / ⁇ 200 mm
- the 50% compression hardness is 583 N / ⁇ 200 mm
- the 50% constant displacement cyclic compression residual strain Is 10.1%
- hardness retention at 50% compression after 50% constant displacement repeated compression is 105.6%
- hardness retention at 25% compression after 50% constant displacement repeated compression is 85.0%
- hysteresis low There was 26.8%.
- the properties of the obtained network structure are shown in Table 1.
- the obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 1-5 A polypropylene thermoplastic elastomer (thermoplastic elastomer A-2) was used, except that the spinning temperature was 230 ° C., the single hole discharge rate was 2.0 g / min, and the conveyor net surface temperature was 40 ° C. without heating.
- the net-like structure obtained in the same manner as in 1-1 was formed with a filament having a hollow cross section, a hollowness of 21%, a fineness of 3300 dtex, an apparent density of 0.041 g / cm 3 , a surface
- the flattened thickness is 51 mm
- 25% compression hardness is 58 N / ⁇ 200 mm
- 50% compression hardness is 124 N / ⁇ 200 mm
- 50% constant displacement repeated compression residual strain is 8.6%
- 50% constant displacement repeated compression The hardness retention at 50% compression was 88.2%
- the hardness retention at 25% compression after 50% constant displacement repeated compression was 81.1%
- the hysteresis loss was 31.1%.
- the properties of the obtained network structure are shown in Table 1.
- the obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 1-1 Obtained in the same manner as in Example 1-1, except that the heat retaining area directly under the nozzle was eliminated, the single hole discharge rate was 1.7 g / min, the take-off speed was 0.9 m / min, and the nozzle surface-cooling water distance was 32 cm.
- the net-like structure has a hollow cross section, a hollow section of 26%, a fineness of 3100 dtex, and an apparent density of 0.035 g / cm 3 and a flattened thickness of 51 mm.
- Example 1-2 Excluding the heat retention area directly under the nozzle, single-hole discharge rate of 2.0 g / min, nozzle surface-cooling water distance of 31 cm, conveyor net is not heated, its surface temperature is 40 ° C, and cooling water temperature is 25 ° C
- the network structure obtained in the same manner as in Example 1-1 was formed with filaments having a hollow cross section, a hollowness of 23%, a fineness of 3400 dtex, and an apparent density of 0.050 g / cm. 3.
- the fineness is 4000 decitex, the apparent density is 0.040 g / cm 3 , the flattened thickness is 50 mm, 25% compression hardness is 63 N / ⁇ 200 mm, and 50% compression hardness is 133 N / ⁇ 200 mm, 50% constant displacement repeated compression residual strain is 9.5%, 50% compression after 50% compression repeated compression, 79.4% hardness retention after 50% constant displacement repeated compression 5% -compression hardness retention is 72.2%, the hysteresis loss was 41.0%.
- the properties of the obtained network structure are shown in Table 1. The obtained network structure did not satisfy the requirements of the present invention, and was a network structure inferior in repeated compression durability and high resilience.
- Example 2-1 The ethylene-vinyl acetate copolymer was obtained by radical copolymerization of ethylene and vinyl acetate by a known method to obtain an ethylene-vinyl acetate copolymer, which was then added and kneaded with 2% antioxidant and pelletized.
- thermoplastic elastomer B-1 with a vinyl acetate content of 10%
- thermoplastic elastomer B-2 with a vinyl acetate content of 20%
- B-3 with a vinyl acetate content of 5% Obtained.
- thermoplastic elastomer B-1 has a vinyl acetate content of 10%, a specific gravity of 0.929, and a melting point of 95 ° C.
- thermoplastic elastomer B-2 has a vinyl acetate content of 20%, a specific gravity of 0.941
- the melting point was 85 ° C.
- thermoplastic elastomer B-3 had a vinyl acetate content of 5%, a specific gravity of 0.925, and a melting point of 103 ° C.
- Table 2 The properties of the polymer obtained are shown in Table 2.
- width direction width 50mm nozzle to the nozzle which made the orifice shape the outer diameter 2mm, the inner diameter 1.6mm, the orifice which made the triple bridge hollow formation cross section with the hole pitch 5mm staggered arrangement
- the obtained ethylene vinyl acetate copolymer B-1 was discharged below the nozzle at a melting temperature of 190 ° C. at a rate of a single hole discharge rate of 1.8 g / min. Cooling water at 50 ° C is placed underneath, and a stainless steel endless net with a width of 150 cm is arranged in parallel so that a pair of take-up conveyors are partially exposed on the water surface at an opening width of 40 mm.
- the surface temperature of the substrate is heated by an infrared heater so as to be 60 ° C., and the molten discharge line is twisted to form a loop to fuse the contact portion.
- a three-dimensional network structure is formed, and both sides of the molten network are sandwiched by a take-up conveyor and drawn into 50 ° C. cooling water at a rate of 0.9 m / min. It cut
- the obtained network structure is formed of filaments having a hollow cross section, a hollow ratio of 25%, and a fineness of 3100 dtex, an apparent density of 0.038 g / cm 3 , and a surface with a flattened thickness.
- 25% compression hardness is 118 N / ⁇ 200 mm
- 50% compression hardness is 220 N / ⁇ 200 mm
- 50% constant displacement cyclic compression residual strain is 10.3%
- 50% constant displacement hardness after 50% compression compression Retention rate is 93.1%
- 50% constant displacement after repeated compression 25% compression hardness retention rate is 65.1%
- hysteresis loss is 24.5%, excellent in repeated compression durability and high resilience
- Table 3 shows the characteristics of the obtained network structure.
- the obtained network structure satisfied the requirements of the present invention and was a network structure excellent in repeated compression durability and high resilience.
- Example 2-2 Spinning temperature is 200 ° C, heat retention area just below the nozzle is 40mm, single hole discharge is 2.7g / min, nozzle surface-cooling water distance is 26cm, conveyor net is not heated, surface temperature is 40 ° C, cooling water temperature
- Example 2-3 B-2 is used as the thermoplastic elastomer, the spinning temperature is 180 ° C, the heat retention area just below the nozzle is 40 mm, the single hole discharge is 2.5 g / min, the nozzle surface-cooling water distance is 30 cm, the conveyor net is not heated
- the apparent density is 0.055 g / cm 3
- the flattened thickness is 39 mm
- the 25% compression hardness is 150 N / ⁇ 200 mm
- the 50% compression hardness is 298 N / ⁇ 200 mm
- the 50% constant displacement cyclic compression residual strain is 9.6%
- hardness retention at 50% compression after 50% constant displacement repeated compression is 98.3%
- hardness retention at 25% compression after 50% constant displacement repeated compression is 68.3%
- hysteresis low There was 28.0%.
- Table 3 shows the characteristics of the obtained network structure.
- the obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 2-4 Spinning temperature is 190 ° C, heat retention area just below the nozzle is 30mm, single hole discharge is 2.1g / min, take-up speed is 1.0m / min, nozzle surface-cooling water distance is 31cm, conveyor net surface temperature is 60 ° C.
- Example 2-5 Example 2 except that B-3 was used as the thermoplastic elastomer, the spinning temperature was 200 ° C., the heat retaining area immediately below the nozzle was 40 mm, the single hole discharge was 2.0 g / min, and the nozzle surface-cooling water distance was 29 cm.
- Example 2-1 Obtained in the same manner as in Example 2-1, except that the heat retaining area directly under the nozzle was eliminated, the single hole discharge rate was 1.9 g / min, the nozzle surface-cooling water distance was 31 cm, and the opening width of the conveyor net was 38 mm.
- the network structure is formed of filaments having a hollow cross section, a hollow ratio of 30%, and a fineness of 3300 dtex, an apparent density of 0.042 g / cm 3 , a flattened thickness of 38 mm, 25% compression hardness is 136 N / ⁇ 200 mm, 50% compression hardness is 271 N / ⁇ 200 mm, 50% constant displacement repeated compression residual strain is 12.1%, 50% compression hardness retention after 50% constant displacement repeated compression The hardness retention at the time of 25% compression after 52.3%, 50% constant displacement repeated compression was 58.8%, and the hysteresis loss was 38.1%. Table 3 shows the characteristics of the obtained network structure. The obtained network structure did not satisfy the requirements of the present invention, and was a network structure inferior in repeated compression durability and high resilience.
- Comparative Example 2-2 The same as Comparative Example 2-1, except that B-2 was used as the thermoplastic elastomer, the single-hole discharge rate was 2.0 g / min, the take-off speed was 1.0 m / min, and the nozzle surface-cooling water distance was 28 cm.
- the net-like structure thus obtained is formed of a filament having a hollow cross section, a hollow ratio of 31%, a fineness of 3500 dtex, an apparent density of 0.038 g / cm 3 , and a flattened thickness.
- Example 3-1 The polyurethane elastomer is polymerized by adding 4.4'diphenylmethane diisocyanate (MDI), PTMG having a number average molecular weight of 1500 and 1,4-butanediol (1,4-BD) as a chain extender, Next, 2% of an antioxidant was added, mixed, kneaded, pelletized, and vacuum dried at 50 ° C. for 48 hours to obtain a thermoplastic elastic resin C-1 having a PTMG content of 38% and C-2 having a PTMG content of 64%.
- MDI 4.4'diphenylmethane diisocyanate
- PTMG having a number average molecular weight of 1500
- 1,4-butanediol (1,4-BD) 1,4-butanediol
- thermoplastic elastic resin C-1 had a PTMG content of 38% by weight and a melting point of 167 ° C.
- C-2 had a PTMG content of 64% by weight and a melting point of 152 ° C.
- the resulting polymer composition is shown in Table 4.
- thermoplastic elastic resin C-1 was discharged at a spinning temperature of 220 ° C. at a single hole discharge rate of 2.7 g / min below the nozzle, passed through a heat retaining region 30 mm directly below the nozzle, and 26 cm below the nozzle surface.
- Cooling water of 30 ° C is arranged, and a stainless steel endless net with a width of 150 cm is arranged in parallel with an opening width of 38 mm so that a part of the pair of take-out conveyors comes out on the water surface, and the conveyor net on the water surface is heated.
- the surface temperature is 40 ° C.
- the discharge line in the molten state is twisted to form a loop, and a contact portion is fused to form a three-dimensional network structure
- the both sides of the melted mesh are sandwiched by a take-up conveyor and drawn into 30 ° C. cooling water at a speed of 1.4 m / minute to solidify both sides, flattened on both sides, cut to a predetermined size, and heated at 110 ° C.
- the obtained network structure is formed of filaments having a hollow cross section, a hollow ratio of 30%, and a fineness of 3300 dtex, an apparent density of 0.035 g / cm 3 , and a surface with a flattened thickness.
- 25% compression hardness is 140N / ⁇ 200mm
- 50% compression hardness is 271N / ⁇ 200mm
- repeated compression residual strain is 12.2%
- 70 ° C compression residual strain is 14.2%
- 50% constant displacement repeated compression The hardness retention rate after 50% compression is 92.5%, the hardness retention rate at 25% compression after 50% constant displacement repeated compression is 80.1%, and the hysteresis loss is 31.2%. It was a network structure excellent in high resilience. Table 5 shows the characteristics of the obtained network structure.
- the obtained cushion was a network structure satisfying the requirements of the present invention and excellent in repeated compression durability and high resilience.
- Example 3-2 Spinning temperature is 230 ° C, heat retention area just below the nozzle is 40mm, single hole discharge is 2.3g / min, take-up speed is 1.1m / min, nozzle surface-cooling water distance is 28cm, conveyor net surface temperature is 120 ° C
- Example 3-3 Obtained in the same manner as in Example 3-1, except that the heat retaining area immediately below the nozzle was 40 mm, the single hole discharge rate was 2.2 g / min, the take-up speed was 0.9 m / min, and the nozzle surface-cooling water distance was 30 cm.
- the net-like structure is formed of a filament having a hollow cross section, a hollow ratio of 31%, a fineness of 3000 dtex, an apparent density of 0.048 g / cm 3 , and a flattened thickness of 38 mm. 25% compression hardness 189 N / ⁇ 200 mm, 50% compression hardness 341 N / ⁇ 200 mm, 70 ° C.
- the obtained cushion was a network structure satisfying the requirements of the present invention and excellent in repeated compression durability and high resilience.
- Example 3-4 The same as Example 3-1, except that C-2 was used as the thermoplastic elastic resin, the heat retention area just below the nozzle was 40 mm, the single hole discharge rate was 2.8 g / min, and the nozzle surface-cooling water distance was 28 cm.
- the net-like structure obtained in this way has a hollow cross section, a hollow ratio of 32%, a fineness of 3100 dtex, and an apparent density of 0.038 g / cm 3 and a flattened surface. 38 mm, 25% compression hardness 59 N / ⁇ 200 mm, 50% compression hardness 131 N / ⁇ 200 mm, 70 ° C.
- Table 5 shows the characteristics of the obtained network structure.
- the obtained cushion was a network structure satisfying the requirements of the present invention and excellent in repeated compression durability and high resilience.
- Example 3-5 C-2 is used as a thermoplastic elastic resin, spinning temperature is 210 ° C., single hole discharge is 2.5 g / min, take-up speed is 1.2 m / min, nozzle surface-cooling water distance is 32 cm, conveyor net surface temperature
- the net-like structure obtained in the same manner as in Example 3-1 was heated with an infrared heater to 80 ° C. and heated to a cooling water temperature of 80 ° C.
- Example 3-1 Other than heating without heat insulation area directly under the nozzle, single-hole discharge rate of 1.9 g / min, take-off speed of 0.9 m / min, nozzle surface-cooling water distance of 30 cm, and cooling water temperature of 80 ° C.
- the apparent density is 0.038 g / cm 3
- the flattened thickness is 38 mm
- the 25% compression hardness is 65 N / ⁇ 200 mm
- the 50% compression hardness is 137 N / ⁇ 200 mm
- the 70 ° C. compression residual strain Is 16.6%
- 50% constant displacement repeated compression residual strain is 9.6%
- 50% compression after 50% compression repeated compression 79.1% hardness retention
- the rate is 70.4%
- hysteresis loss was 37.2%.
- Table 5 shows the characteristics of the obtained network structure.
- the obtained cushion did not satisfy the requirements of the present invention, and was a network structure having poor repeated compression durability and high resilience.
- a polyamide-based thermoplastic elastomer is obtained by obtaining a polyamide compound by a known method using ⁇ -lauryl lactam and adipic acid, then copolymerizing by a known method using PTMG having a number average molecular weight of 1000, and then antioxidant 1 % Was added and kneaded, pelletized, and vacuum dried at 50 ° C. for 48 hours to obtain a thermoplastic elastomer D-1 having a PTMG content of 35%.
- Thermoplastic elastomer D-2 was polymerized in the same manner as D-1 using PTMG having a number average molecular weight of 2000 to obtain a thermoplastic elastomer having a PTMG content of 55%.
- thermoplastic elastomer D-1 had a PTMG content of 35% by weight and a melting point of 159 ° C.
- D-2 had a PTMG content of 55% by weight and a melting point of 140 ° C.
- the resulting polymer composition is shown in Table 6.
- the orifice shape is 2mm outside diameter, 1.6mm inside diameter, and the orifice that has a triple bridge hollow forming cross section is a staggered arrangement with a 5mm pitch between holes.
- the obtained thermoplastic elastomer D-1 was discharged below the nozzle at a spinning temperature of 220 ° C. at a single hole discharge rate of 2.4 g / min, passed through a heat retaining region 30 mm directly below the nozzle, and 30 cm below the nozzle surface 28 cm.
- a network structure was obtained by drying and heat treatment with hot air for 15 minutes.
- the obtained network structure is formed of filaments having a hollow cross section, a hollow ratio of 31%, a fineness of 3600 dtex, an apparent density of 0.038 g / cm 3 , and a surface with a flattened thickness. 40mm, 25% compression hardness 233N / ⁇ 200mm, 50% compression hardness 402N / ⁇ 200mm, 50% constant displacement cyclic compression residual strain 9.1%, 70 ° C compression residual strain 12.2%, 50% The hardness retention at 50% compression after constant displacement repeated compression is 93.4%, the hardness retention at 25% compression after 50% constant displacement repeated compression is 82.2%, and the hysteresis loss is 30.8%.
- the network structure was excellent in repeated compression durability and high resilience. Table 7 shows the properties of the obtained network structure.
- the obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 4-2 Spinning temperature is 230 ° C, heat retention area just below the nozzle is 40mm, single hole discharge is 2.1g / min, take-up speed is 1.0m / min, nozzle surface-cooling water distance is 30cm, conveyor net surface temperature is 120 ° C
- Example 4-3 The network structure obtained in the same manner as in Example 4-1 except that D-2 was used as the thermoplastic elastomer, the single hole discharge rate was 2.5 g / min, and the nozzle surface-cooling water distance was 30 cm.
- the shape is a hollow cross section with a hollow ratio of 32%, a fineness of 3400 dtex, and an apparent density of 0.040 g / cm 3 , a flattened thickness of 40 mm, and a 25% compression hardness.
- Table 7 shows the properties of the obtained network structure.
- the obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 4-4 D-2 is used as the thermoplastic elastomer, the spinning temperature is 230 ° C, the heat retaining area immediately below the nozzle is 40 mm, the single hole discharge rate is 2.8 g / min, the take-up speed is 0.9 m / min, and the nozzle surface-cooling water distance
- the net-like structure obtained in the same manner as in Example 4-1 was heated with an infrared heater so that the surface temperature of the conveyor net was 80 ° C. and the cooling water temperature was 80 ° C.
- the cross-sectional shape is a hollow cross-section with a hollow ratio of 28%, a fineness of 3200 dtex, an apparent density of 0.060 g / cm 3 , a flattened thickness of 39 mm, and 25% hardness when compressed 182N / ⁇ 200mm, 50% compression hardness 344N / ⁇ 200mm, 70 ° C compression residual strain 12.0%, 50% constant displacement repeated compression residual strain 5.5%, 50% constant displacement repeated compression 50% -compression hardness retention 93.2 percent, 25% -compression hardness retention after 50% constant displacement repeated compression 80.6% hysteresis loss was 22.0%.
- Table 7 shows the properties of the obtained network structure. The obtained network structure satisfied the requirements of the present invention, and was a network structure excellent in repeated compression durability and high resilience.
- Example 4-1 Other than heating without heat insulation area just under the nozzle, single-hole discharge rate of 1.9 g / min, take-off speed of 0.8 m / min, nozzle surface-cooling water distance of 29 cm, and cooling water temperature of 80 ° C
- Comparative Example 4-2 The network structure obtained in the same manner as in Comparative Example 4-1, except that D-2 was used as the thermoplastic elastomer and the cooling water temperature was set to 30 ° C. without overheating, and the cross-sectional shape was hollow and the hollow ratio was 33%. , Formed with a filament having a fineness of 3400 dtex, an apparent density of 0.048 g / cm 3 , a flattened surface thickness of 40 mm, a 25% compression hardness of 83 N / ⁇ 200 mm, and a 50% compression hardness of 192 N / ⁇ 200 mm, 70 ° C.
- the network structure of the present invention has improved durability after repeated compression, which is a problem of conventional products, without impairing the comfortable sitting comfort and breathability that the network structure has conventionally had, and is used for a long time
- Cushion materials used for seats for cars such as office chairs, furniture, sofas, beds, bedding, trains, automobiles, motorcycles, strollers, child seats, floor mats, collisions, etc. Since it is possible to provide a net-like structure suitable for a shock absorbing mat such as a pinching prevention member, it contributes greatly to the industry.
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Abstract
Description
発泡-架橋型ウレタンはクッション材としての耐久性は良好だが、透湿透水性や通気性に劣り、蓄熱性があるため蒸れやすいという問題点がある。さらに、熱可塑性で無いためリサイクルが困難であり、そのため焼却処分される場合は焼却炉の損傷が大きくなったり、有毒ガス除去に経費が掛かるなどの問題点が指摘されている。そこで埋め立て処分されることが多いが、地盤の安定化が困難なため埋め立て場所が限定され、経費も高くなる問題点もある。また、加工性は優れるが製造中に使用される薬品の公害問題やフォーム後の残留薬品やそれに伴う臭気など種々の問題が指摘されている。
1.ポリオレフィン系熱可塑性エラストマー、エチレン酢酸ビニル共重合体、ポリウレタン系熱可塑性エラストマーおよびポリアミド系熱可塑性エラストマーからなる群から選ばれる少なくとも1種の熱可塑性弾性樹脂からなる繊度が100デシテックス以上60000デシテックス以下の連続線状体を曲がりくねらせランダムループを形成し、夫々のループを互いに溶融状態で接触せしめた三次元ランダムループ接合構造体であって、見かけ密度が0.005g/cm3~0.20g/cm3であり、50%定変位繰返し圧縮残留歪みが15%以下であり、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が85%以上である網状構造体。
2.ヒステリシスロスが35%以下である上記1に記載の網状構造体。
3.三次元ランダムループ接合構造体がポリオレフィン系熱可塑性エラストマーからなり、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が80%以上である上記1または2に記載の網状構造体。
4.三次元ランダムループ接合構造体がエチレン酢酸ビニル共重合体からなり、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が65%以上である上記1または2に記載の網状構造体。
5.三次元ランダムループ接合構造体がポリウレタン系熱可塑性エラストマーまたはポリアミド系熱可塑性エラストマーからなり、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が75%以上である上記1または2に記載の網状構造体。
6.網状構造体の厚みが10mm以上300mm以下である上記1~5のいずれかに記載の網状構造体。
7.網状構造体を構成する連続線状体の断面形状が中空断面および/または異型断面である上記1~6のいずれかに記載の網状構造体。
本発明の網状構造体は、ポリオレフィン系熱可塑性エラストマー、エチレン酢酸ビニル共重合体、ポリウレタン系熱可塑性エラストマーおよびポリアミド系熱可塑性エラストマーからなる群から選ばれる少なくとも1種の熱可塑性弾性樹脂からなる繊度が100デシテックス以上60000デシテックス以下の連続線状体を曲がりくねらせランダムループを形成し、夫々のループを互いに溶融状態で接触せしめた三次元ランダムループ接合構造体であって、見かけ密度が0.005g/cm3~0.20g/cm3であり、50%定変位繰返し圧縮残留歪みが15%以下であり、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が85%以上である網状構造体である。
必要に応じて、上記方法によって重合された二種類以上のポリマーや、水素添加ポリブタジエンや水素添加ポリイソプレンなどのポリマーをブレンドすることができる。改質剤として、酸化防止剤、耐侯剤、難燃剤などを必要に応じて添加することができる。
ラクタム化合物として、γ-ブチロラクタム、ε-カプロラクタム、ω-ヘプタラクタム、ω-ウンデカラクタム、ω-ラウリルラクタムなどの炭素数5~20の脂肪族ラクタムのうち少なくとも1種以上が挙げられる。
ジカルボン酸として、シュウ酸、コハク酸、グルタル酸、アジピン酸、ピメリン酸、スベリン酸、アゼライン酸、セバシン酸、ドデカン二酸などの炭素数2~20の脂肪族ジカルボン酸、シクロヘキサンジカルボン酸などの脂環族ジカルボン酸、テレフタル酸、イソフタル酸、オルトフタル酸などの芳香族ジカルボン酸、などのジカルボン酸化合物のうち少なくとも1種以上が挙げられる。
ジアミンとして、エチレンジアミン、トリメチレンジアミン、テトラメチレンジアミン、ヘキサメチレンジアミン、ヘプタメチレンジアミン、オクタメチレンジアミン、ノナメチレンジアミン、デカメチレンジアミン、ウンデカメチレンジアミン、ドデカンメチレンジアミン、2,2,4-トリメチルヘキサメチレンジアミン、2,4,4-トリメチルヘキサメチレンジアミン、3-メチルペンタメチレンジアミンなどの脂肪族ジアミン、またはメタキシレンジアミンなどの芳香族ジアミンのうち少なくとも1種以上が挙げられる。
ポリエーテルポリオールとして、数平均分子量が約300~5000のポリエチレングリコ-ル、ポリプロピレングリコ-ル、ポリテトラメチレングリコ-ル、エチレンオキシド-プロピレンオキシド共重合体からなるグリコ-ル等のポリアルキレンジオ-ルのうち少なくとも1種以上が挙げられる。
ポリカーボネートジオールは、低分子ジオールとカーボネート化合物の反応物であり、数平均分子量が約300~5000のものが挙げられる。低分子ジオールとして、エチレングリコール、1,2-プロピレングリコール、1,3-プロピレングリコール、1,4-ブタンジオール、1,5-ペンタンジオール、3-メチルー1,5-ペンタンジオール、1,6-ヘキサンジオール、1,7-ヘプタンジオール、1,8-オクタンジオール、1,9-ノナンジオール、1,10-デカンジオールなどの脂肪族ジオール、シクロヘキサンジメタノール、シクロヘキサンジオールなどの脂環式ジオールのうち少なくとも1種以上の低分子ジオールが挙げられる。カーボネート化合物として、ジアルキルカーボネート、アルキレンカーボネート、ジアリールカーボネートなどのうち少なくとも1種以上が挙げられる。
ポリエステルポリオールとして、数平均分子量が約300~5000のポリラクトン等のポリエステルジオールのうち少なくとも1種以上が挙げられる。上記のブロック共重合体を単独または2種類以上混合して用いてもよい。
さらには、非エラストマー成分をブレンドしたもの、共重合したもの等も本発明に使用できる。
網状構造体を構成する連続線状体同士の接点強度を強くすることにより、網状体が圧縮される際に接点破壊が起こりにくくなる。次に、圧縮状態から応力が開放されて変形状態から回復する時に各接点が破壊されずに維持されていることで変形状態からの回復が速くなりヒステリシスロスが小さくなったものと考える。すなわち、これまで知られていた網状構造体は所定の予備圧縮や二回目の圧縮により、網状構造体を構成する連続線状体同士の多くの接点が破壊されていたが、本発明の網状構造体は接点の破壊を従来のものに比べ減少することができ、維持された接点がポリマー本来のゴム弾性をより活かすことができるようになったためと考えられる。
試料を20cm×20cmの大きさに切断し、10か所から線状体を採集する。10か所で採集した線状体の40℃での比重を密度勾配管を用いて測定する。さらに、上記10か所で採集した線状体の断面積を顕微鏡で30倍に拡大した写真より求め、それより線状体の長さ10000m分の体積を求める。得られた比重と体積を乗じた値を繊度(線状体10000m分の重量)とする。(n=10の平均値)
試料を30cm×30cmの大きさに切断し、無荷重で24時間放置した後、高分子計器製FD-80N型測厚器にて4か所の高さを測定して平均値を試料厚みとする。試料重さは、上記試料を電子天秤に載せて計測する。また試料厚みから体積を求め、試料の重さを体積で除した値で示す。(それぞれn=4の平均値)
TAインスツルメント社製 示差走査熱量計Q200を使用し、昇温速度20℃/分で測定した吸発熱曲線から吸熱ピーク(融解ピーク)温度を求めた。
試料を30cm×30cmの大きさに切断し、(2)に記載の方法で処理前の厚み(a)を測定する。厚みを測定したサンプルを50%圧縮状態に保持できる冶具に挟み、70℃に設定した乾燥機に入れ、22時間放置する。その後サンプルを取り出し、冷却して圧縮歪みを除き1日放置後の厚み(b)を求め、処理前の厚み(a)とから、式{(a)-(b)}/(a)×100より算出する:単位%(n=3の平均値)。
試料を30cm×30cmの大きさに切断し、20℃±2℃の環境下に無荷重で24時間放置した後、20℃±2℃の環境下にあるオリエンテック社製テンシロンにてφ200mm、厚み3mmの加圧板を用いて、試料の中心部を10mm/minの速度で圧縮を開始し、荷重が5Nになる時の厚みを計測し、硬度計厚みとする。この時の加圧板の位置をゼロ点として、速度100mm/minで硬度計厚みの75%まで圧縮した後、速度100mm/minにて加圧板をゼロ点まで戻す。引き続き速度100mm/minで硬度計厚みの25%ないし50%まで圧縮し、その際の荷重を測定し、各々25%圧縮時硬度、50%圧縮時硬度とした:単位N/φ200(n=3の平均値)。
試料を30cm×30cmの大きさに切断し、(2)に記載の方法で処理前の厚み(c)を測定する。厚みを測定したサンプルを島津製作所製サーボパルサーにて、20℃±2℃環境下にて50%の厚みまで1Hzのサイクルで圧縮回復を繰り返し、8万回後の試料を1日静置した後に処理後の厚み(d)を求め、処理前の厚み(c)とから、式{(c)-(d)}/(c)×100より算出する:単位%(n=3の平均値)。
試料を30cm×30cmの大きさに切断し、(2)に記載の方法で処理前の厚みを測定する。厚みを測定したサンプルを(5)に記載の方法で測定した50%圧縮時硬度を処理前荷重(e)とする。その後、島津製作所製サーボパルサーで、20℃±2℃環境下にて処理前厚みの50%の厚みまで1Hzのサイクルで圧縮回復を繰り返し、8万回後の試料を30分静置後、(5)に記載の方法で測定した50%圧縮時硬度を処理後荷重(f)とする。式(f)/(e)×100より50%定変位繰返し圧縮後の50%圧縮時硬度保持率を算出する:単位%(n=3の平均値)。
試料を30cm×30cmの大きさに切断し、(2)に記載の方法で処理前の厚みを測定する。厚みを測定したサンプルを(5)に記載の方法で測定した25%圧縮時硬度を処理前荷重(g)とする。その後、島津製作所サーボパルサーで、20℃±2℃環境下にて処理前厚みの50%の厚みまで1Hzのサイクルで圧縮回復を繰り返し、8万回後の試料を30分静置後、(5)に記載の方法で測定した25%圧縮時硬度を処理後荷重(h)とする。式(h)/(g)×100より50%定変位繰返し圧縮後の25%圧縮時硬度保持率を算出する:単位%(n=3の平均値)。
試料を30cm×30cmの大きさに切断し、20℃±2℃の環境下に無荷重で24時間放置した後、20℃±2℃の環境下にあるオリエンテック社製テンシロンにてφ200mm、厚み3mmの加圧板を用いて、試料の中心部を10mm/minの速度で圧縮を開始し、荷重が5Nになる時の厚みを計測し、硬度計厚みとする。この時の加圧板の位置をゼロ点として、速度100mm/minで硬度計厚みの75%まで圧縮し、ホールドタイム無しで同一速度にて加圧板をゼロ点まで戻す(一回目の応力歪み曲線)。引き続きホールドタイム無しで速度100mm/minで硬度計厚みの75%まで圧縮し、ホールドタイム無しで同一速度にてゼロ点まで戻す(二回目の応力歪み曲線)。
二回目の圧縮時応力曲線の示す圧縮エネルギー(WC)、二回目の除圧時応力曲線の示す圧縮エネルギー(WC‘)とし、下記式に従ってヒステリシスロスを求める。
ヒステリシスロス(%)=(WC-WC‘)/WC×100
WC=∫PdT(0%から75%まで圧縮したときの仕事量)
WC‘=∫PdT(75%から0%まで除圧したときの仕事量)
簡易的には、例えば図1のような応力歪み曲線が得られたら、パソコンによるデータ解析によって算出することができる。また、斜線部分の面積をWCとし、網掛け部分の面積をWC‘として、その面積比を切り抜いた部分の重さから求めることもできる。(n=3の平均値)
ポリオレフィン系熱可塑性エラストマーは、メタロセン化合物を触媒としてヘキサン、ヘキセン、エチレンを公知の方法で重合し、エチレン・α-オレフィン共重合体とし、次いで酸化防止剤2%を添加混合練込み後ペレット化して得た。得られたポリオレフィン系熱可塑性エラストマー(熱可塑性エラストマーA-1)は、比重が0.919g/cm3で、融点が110℃であった。ポリプロピレン系熱可塑性エラストマーとしてExxonMobil Chemical社製のVistamax 2125(熱可塑性エラストマーA-2)を用いた。ポリプロピレン系熱可塑性エラストマーは、比重が0.87g/cm3で、融点が162℃であった。
ノズル直下の保温領域を40mm、単孔吐量を1.8g/min、ノズル面-冷却水距離を32cm、冷却水温度を25℃にした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が20%、繊度が2700デシテックスの線条で形成しており、見かけ密度が0.045g/cm3、表面が平坦化された厚みが48mm、25%圧縮時硬度が155N/φ200mm、50%圧縮時硬度が288N/φ200mm、50%定変位繰返し圧縮残留歪みが8.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が98.3%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が82.3%、ヒステリシスロスが24.7%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
単孔吐量を2.0g/min、ノズル面-冷却水距離を28cm、コンベアネット表面温度を加熱せずに40℃にした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が22%、繊度が3300デシテックスの線条で形成しており、見かけ密度が0.040g/cm3、表面が平坦化された厚みが51mm、25%圧縮時硬度が137N/φ200mm、50%圧縮時硬度が242N/φ200mm、50%定変位繰返し圧縮残留歪みが9.0%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が91.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が83.5%、ヒステリシスロスが33.5%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
紡糸温度を220℃、ノズル直下の保温領域を40mm、単孔吐量を3.2g/min、引き取り速度を毎分1.0m、コンベアネット表面温度を80℃になるように赤外線ヒーターで加熱し、冷却水温度を25℃にした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が18%、繊度が2900デシテックスの線条で形成しており、見かけ密度が0.061g/cm3、表面が平坦化された厚みが50mm、25%圧縮時硬度が267N/φ200mm、50%圧縮時硬度が583N/φ200mm、50%定変位繰返し圧縮残留歪みが10.1%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が105.6%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が85.0%、ヒステリシスロスが26.8%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
ポリプロピレン系熱可塑性エラストマー(熱可塑性エラストマーA-2)を用い、紡糸温度を230℃、単孔吐量を2.0g/min、コンベアネット表面温度を加熱せずに40℃にした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が21%、繊度が3300デシテックスの線条で形成しており、見かけ密度が0.041g/cm3、表面が平坦化された厚みが51mm、25%圧縮時硬度が58N/φ200mm、50%圧縮時硬度が124N/φ200mm、50%定変位繰返し圧縮残留歪みが8.6%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が88.2%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が81.1%、ヒステリシスロスが31.1%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
ノズル直下の保温領域をなくし、単孔吐量を1.7g/min、引き取り速度を毎分0.9m、ノズル面-冷却水距離を32cmとした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が26%、繊度が3100デシテックスの線条で形成しており、見かけ密度が0.035g/cm3、表面が平坦化された厚みが51mm、25%圧縮時硬度が112N/φ200mm、50%圧縮時硬度が222N/φ200mm、50%定変位繰返し圧縮残留歪みが9.6%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が78.8%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が74.4%、ヒステリシスロスが39.2%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
ノズル直下の保温領域をなくし、単孔吐量を2.0g/min、ノズル面-冷却水距離を31cm、コンベアネットは加熱せずその表面温度は40℃、冷却水温度を25℃にした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が23%、繊度が3400デシテックスの線条で形成しており、見かけ密度が0.050g/cm3、表面が平坦化された厚みが48mm、25%圧縮時硬度が192N/φ200mm、50%圧縮時硬度が390N/φ200mm、50%定変位繰返し圧縮残留歪みが8.7%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が75.5%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が78.0%、ヒステリシスロスが38.5%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
ポリプロピレン系熱可塑性エラストマー(熱可塑性エラストマーA-2)を用い、紡糸温度を220℃、ノズル直下の保温領域をなくし、単孔吐量を2.0g/min、ノズル面-冷却水距離を22cm、コンベアネットは加熱せずその表面温度は40℃、冷却水温度を25℃にした以外、実施例1-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が29%、繊度が4000デシテックスの線条で形成しており、見かけ密度が0.040g/cm3、表面が平坦化された厚みが50mm、25%圧縮時硬度が63N/φ200mm、50%圧縮時硬度が133N/φ200mm、50%定変位繰返し圧縮残留歪みが9.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が79.4%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が72.2%、ヒステリシスロスが41.0%であった。得られた網状構造体の特性を表1に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
エチレン酢酸ビニル共重合体は、エチレンと酢酸ビニルを公知の方法でラジカル共重合し、エチレン酢酸ビニル共重合体とし、次いで酸化防止剤2%を添加混合練込み後ペレット化して得た。重合時の酢酸ビニルの比率を変更し、酢酸ビニル含有率10%の熱可塑性エラストマーB-1、酢酸ビニル含有率20%の熱可塑性エラストマーB-2、酢酸ビニル含有率5%のB-3を得た。熱可塑性エラストマーB-1は、酢酸ビニルの含有率が10%、比重0.929、融点95℃であり、熱可塑性エラストマーB-2は、酢酸ビニルの含有率が20%、比重0.941、融点85℃、熱可塑性エラストマーB-3は、酢酸ビニルの含有率が5%、比重0.925、融点103℃であった。得られたポリマーの特性を表2に示す。
紡糸温度を200℃、ノズル直下の保温領域を40mm、単孔吐量を2.7g/min、ノズル面-冷却水距離を26cm、コンベアネットは加熱せずその表面温度は40℃、冷却水温度を25℃にした以外、実施例2-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が23%、繊度が3500デシテックスの線条で形成しており、見掛け密度が0.058g/cm3、表面が平坦化された厚みが40mm、25%圧縮時硬度が268N/φ200mm、50%圧縮時硬度が511N/φ200mm、50%定変位繰返し圧縮残留歪みが8.4%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が104.6%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が71.5%、ヒステリシスロスが25.2%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
熱可塑性エラストマーとしてB-2を用い、紡糸温度を180℃、ノズル直下の保温領域を40mm、単孔吐量を2.5g/min、ノズル面-冷却水距離を30cm、コンベアネットは加熱せずその表面温度は40℃にした以外、実施例2-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が23%、繊度が3200デシテックスの線条で形成しており、見掛け密度が0.055g/cm3、表面が平坦化された厚みが39mm、25%圧縮時硬度が150N/φ200mm、50%圧縮時硬度が298N/φ200mm、50%定変位繰返し圧縮残留歪みが9.6%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が98.3%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が68.3%、ヒステリシスロスが28.0%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
紡糸温度を190℃、ノズル直下の保温領域を30mm、単孔吐量を2.1g/min、引き取り速度を毎分1.0m、ノズル面-冷却水距離を31cm、コンベアネット表面温度を60℃になるように赤外線ヒーターで加熱し、冷却水温度を25℃にした以外、実施例2-3と同様にして得た網状構造体は、断面形状が中空断面で中空率が26%、繊度が3200デシテックスの線条で形成しており、見掛け密度が0.041g/cm3、表面が平坦化された厚みが40mm、25%圧縮時硬度が53N/φ200mm、50%圧縮時硬度が123N/φ200mm、50%定変位繰返し圧縮残留歪みが10.7%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が90.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が70.2%、ヒステリシスロスが32.1%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
熱可塑性エラストマーとしてB-3を用い、紡糸温度を200℃、ノズル直下の保温領域を40mm、単孔吐量を2.0g/min、ノズル面-冷却水距離を29cmとした以外、実施例2-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が25%、繊度が3000デシテックスの線条で形成しており、見掛け密度が0.045g/cm3、表面が平坦化された厚みが41mm、25%圧縮時硬度が230N/φ200mm、50%圧縮時硬度が421N/φ200mm、50%定変位繰返し圧縮残留歪みが9.0%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が97.0%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が76.0%、ヒステリシスロスが28.8%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
ノズル直下の保温領域をなくし、単孔吐量を1.9g/min、ノズル面-冷却水距離を31cm、コンベアネットの開口幅を38mmとした以外、実施例2-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が30%、繊度が3300デシテックスの線条で形成しており、見掛け密度が0.042g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が136N/φ200mm、50%圧縮時硬度が271N/φ200mm、50%定変位繰返し圧縮残留歪みが12.1%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が82.3%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が58.8%、ヒステリシスロスが38.1%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
熱可塑性エラストマーとしてB-2を用い、単孔吐量を2.0g/min、引き取り速度を毎分1.0m、ノズル面-冷却水距離を28cmにした以外、比較例2-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が31%、繊度が3500デシテックスの線条で形成しており、見掛け密度が0.038g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が48N/φ200mm、50%圧縮時硬度が110N/φ200mm、50%定変位繰返し圧縮残留歪みが10.1%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が80.6%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が59.6%、ヒステリシスロスが40.2%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
熱可塑性エラストマーとしてB-3を用い、紡糸温度を200℃、単孔吐量を1.8g/min、ノズル面-冷却水距離を30cm、コンベアネットは加熱せずその表面温度は40℃、冷却水温度を25℃にした以外、比較例2-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が28%、繊度が3400デシテックスの線条で形成しており、見掛け密度が0.038g/cm3、表面が平坦化された厚みが39mm、25%圧縮時硬度が175N/φ200mm、50%圧縮時硬度が340N/φ200mm、50%定変位繰返し圧縮残留歪みが9.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が83.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が61.9%、ヒステリシスロスが37.8%であった。得られた網状構造体の特性を表3に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
ポリウレタン系エラストマーは、4・4’ジフェニルメタンジイソシアネ-ト(MDI)と数平均分子量1500のPTMG及び鎖延長剤として1,4-ブタンジオール(1,4-BD)を添加して重合し、次いで抗酸化剤2%を添加混合練込み後ペレット化し、50℃48時間真空乾燥し、PTMG含有率38%の熱可塑性弾性樹脂C-1とPTMG含有率64%のC-2を得た。熱可塑性弾性樹脂C-1は、PTMG含有量が38重量%、融点が167℃、C-2は、PTMG含有量が64重量%、融点が152℃であった。得られたポリマー組成を表4に示す。
紡糸温度を230℃、ノズル直下の保温領域を40mm、単孔吐量を2.3g/min、引き取り速度を毎分1.1m、ノズル面-冷却水距離を28cm、コンベアネット表面温度を120℃になるように赤外線ヒーターで加熱し、冷却水温度を80℃となるように加熱した以外、実施例3-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が33%、繊度が3000デシテックスの線条で形成しており、見かけ密度が0.042g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が162N/φ200mm、50%圧縮時硬度が305N/φ200mm、70℃圧縮残留歪みが9.7%、50%定変位繰返し圧縮残留歪みが9.6%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が96.2%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が85.0%、ヒステリシスロスが28.4%であった。得られた網状構造体の特性を表5に示す。得られたクッションは、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
ノズル直下の保温領域を40mm、単孔吐量を2.2g/min、引き取り速度を毎分0.9m、ノズル面-冷却水距離を30cmとした以外、実施例3-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が31%、繊度が3000デシテックスの線条で形成しており、見かけ密度が0.048g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が189N/φ200mm、50%圧縮時硬度が341N/φ200mm、70℃圧縮残留歪みが13.0%、50%定変位繰返し圧縮残留歪みが10.2%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が101.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が77.4%、ヒステリシスロス26.8%であった。得られた網状構造体の特性を表5に示す。得られたクッションは、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
熱可塑性弾性樹脂としてC-2を用い、ノズル直下の保温領域を40mm、単孔吐量を2.8g/min、ノズル面-冷却水距離を28cmにした以外、実施例3-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が32%、繊度が3100デシテックスの線条で形成しており、見かけ密度が0.038g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が59N/φ200mm、50%圧縮時硬度が131N/φ200mm、70℃圧縮残留歪みが12.6%、50%定変位繰返し圧縮残留歪みが8.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が99.2%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が80.5%、ヒステリシスロスが24.7%であった。得られた網状構造体の特性を表5に示す。得られたクッションは、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
熱可塑性弾性樹脂としてC-2を用い、紡糸温度を210℃、単孔吐量を2.5g/min、引き取り速度を毎分1.2m、ノズル面-冷却水距離を32cm、コンベアネット表面温度を80℃になるように赤外線ヒーターで加熱し、冷却水温度が80℃になるように加熱した以外、実施例3-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が33%、繊度が2800デシテックスの線条で形成しており、見かけ密度が0.041g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が79N/φ200mm、50%圧縮時硬度が154N/φ200mm、70℃圧縮残留歪みが17.7%、50%定変位繰返し圧縮残留歪みが10.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が93.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が79.0%、ヒステリシスロスが23.0%であった。得られた網状構造体の特性を表5に示す。得られたクッションは、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
ノズル直下の保温領域をなくし、単孔吐量を1.9g/min、引き取り速度を毎分0.9m、ノズル面-冷却水距離を30cm、冷却水温度が80℃となるように加熱した以外、実施例3-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が35%、繊度が3500デシテックスの線条で形成しており、見かけ密度が0.042g/cm3、表面が平坦化された厚みが39mm、25%圧縮時硬度が170N/φ200mm、50%圧縮時硬度が308N/φ200mm、70℃圧縮残留歪みが13.8%、50%定変位繰返し圧縮残留歪みが11.0%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が81.0%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が72.2%、ヒステリシスロスが39.1%であった。得られた網状構造体の特性を表5に示す。得られたクッションは、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
熱可塑性弾性樹脂としてC-2を用い、ノズル直下の保温領域をなくし、単孔吐量を2.2g/min、引き取り速度を毎分1.1m、ノズル面-冷却水距離を28cm、コンベアネットは加熱せずその表面温度は40℃とした以外、実施例3-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が34%、繊度が3800デシテックスの線条で形成しており、見かけ密度が0.038g/cm3、表面が平坦化された厚みが38mm、25%圧縮時硬度が65N/φ200mm、50%圧縮時硬度が137N/φ200mm、70℃圧縮残留歪みが16.6%、50%定変位繰返し圧縮残留歪みが9.6%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が79.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が70.4%、ヒステリシスロスが37.2%であった。得られた網状構造体の特性を表5に示す。得られたクッションは、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
ポリアミド系熱可塑性エラストマーは、ω-ラウリルラクタム、アジピン酸を用いて公知の方法でポリアミド化合物を得た後、数平均分子量1000のPTMGを用いて公知の方法で共重合し、次いで抗酸化剤1%を添加混合練込み後ペレット化し、50℃48時間真空乾燥し、PTMG含有率35%の熱可塑性エラストマーD-1を得た。熱可塑性エラストマーD-2は、数平均分子量2000のPTMGを用いて、D-1と同様の方法で重合し、PTMG含有率55%の熱可塑性エラストマーを得た。熱可塑性エラストマーD-1は、PTMG含有量が35重量%、融点が159℃、D-2は、PTMG含有量が55重量%、融点が140℃であった。得られたポリマー組成を表6に示す。
紡糸温度を230℃、ノズル直下の保温領域を40mm、単孔吐出量を2.1g/min、引き取り速度を毎分1.0m、ノズル面-冷却水距離を30cm、コンベアネット表面温度を120℃になるように赤外線ヒーターで加熱し、冷却水温度を80℃となるように加熱した以外、実施例4-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が29%、繊度が3300デシテックスの線条で形成しており、見掛け密度が0.042g/cm3、表面が平坦化された厚みが39mm、25%圧縮時硬度が250N/φ200mm、50%圧縮時硬度が431N/φ200mm、70℃圧縮残留歪みが8.7%、50%定変位繰返し圧縮残留歪みが7.3%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が98.1%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が86.3%、ヒステリシスロス27.7%であった。得られた網状構造体の特性を表7に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
熱可塑性エラストマーとしてD-2を用い、単孔吐出量を2.5g/min、ノズル面-冷却水距離を30cmとした以外、実施例4-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が32%、繊度が3400デシテックスの線条で形成しており、見掛け密度が0.040g/cm3、表面が平坦化された厚みが40mm、25%圧縮時硬度が65N/φ200mm、50%圧縮時硬度が138N/φ200mm、70℃圧縮残留歪みが15.5%、50%定変位繰返し圧縮残留歪みが8.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が87.4%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が77.1%、ヒステリシスロス29.3%であった。得られた網状構造体の特性を表7に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
熱可塑性エラストマーとしてD-2を用い、紡糸温度を230℃、ノズル直下の保温領域を40mm、単孔吐出量を2.8g/min、引き取り速度を毎分0.9m、ノズル面-冷却水距離を32cm、コンベアネット表面温度を80℃になるように赤外線ヒーターで加熱し、冷却水温度を80℃となるように加熱した以外、実施例4-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が28%、繊度が3200デシテックスの線条で形成しており、見掛け密度が0.060g/cm3、表面が平坦化された厚みが39mm、25%圧縮時硬度が182N/φ200mm、50%圧縮時硬度が344N/φ200mm、70℃圧縮残留歪みが12.0%、50%定変位繰返し圧縮残留歪みが5.5%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が93.2%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が80.6%、ヒステリシスロスが22.0%であった。得られた網状構造体の特性を表7に示す。得られた網状構造体は、本発明の要件を満たし、繰返し圧縮耐久性と高反発性に優れた網状構造体であった。
ノズル直下の保温領域をなくし、単孔吐出量を1.9g/min、引き取り速度を毎分0.8m、ノズル面-冷却水距離を29cm、冷却水温度が80℃となるように加熱した以外、実施例4-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が34%、繊度が3500デシテックスの線条で形成しており、見掛け密度が0.048g/cm3、表面が平坦化された厚みが40mm、25%圧縮時硬度が311N/φ200mm、50%圧縮時硬度が602N/φ200mm、70℃圧縮残留歪みが13.9%、50%定変位繰返し圧縮残留歪みが7.1%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が82.0%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が71.2%、ヒステリシスロスが37.0%であった。得られた網状構造体の特性を表7に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
熱可塑性エラストマーとしてD-2を用い、冷却水温度を過熱せず30℃とした以外、比較例4-1と同様にして得た網状構造体は、断面形状が中空断面で中空率が33%、繊度が3400デシテックスの線条で形成しており、見掛け密度が0.048g/cm3、表面が平坦化された厚みが40mm、25%圧縮時硬度が83N/φ200mm、50%圧縮時硬度が192N/φ200mm、70℃圧縮残留歪みが14.0%、50%定変位繰返し圧縮残留歪みが6.6%、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が77.2%、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が68.1%、ヒステリシスロスが38.2%であった。得られた網状構造体の特性を表7に示す。得られた網状構造体は、本発明の要件を満たさず、繰返し圧縮耐久性と高反発性に劣る網状構造体であった。
Claims (7)
- ポリオレフィン系熱可塑性エラストマー、エチレン酢酸ビニル共重合体、ポリウレタン系熱可塑性エラストマーおよびポリアミド系熱可塑性エラストマーからなる群から選ばれる少なくとも1種の熱可塑性弾性樹脂からなる繊度が100デシテックス以上60000デシテックス以下の連続線状体を曲がりくねらせランダムループを形成し、夫々のループを互いに溶融状態で接触せしめた三次元ランダムループ接合構造体であって、見かけ密度が0.005g/cm3~0.20g/cm3であり、50%定変位繰返し圧縮残留歪みが15%以下であり、50%定変位繰返し圧縮後の50%圧縮時硬度保持率が85%以上である網状構造体。
- ヒステリシスロスが35%以下である請求項1に記載の網状構造体。
- 三次元ランダムループ接合構造体がポリオレフィン系熱可塑性エラストマーからなり、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が80%以上である請求項1または2に記載の網状構造体。
- 三次元ランダムループ接合構造体がエチレン酢酸ビニル共重合体からなり、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が65%以上である請求項1または2に記載の網状構造体。
- 三次元ランダムループ接合構造体がポリウレタン系熱可塑性エラストマーまたはポリアミド系熱可塑性エラストマーからなり、50%定変位繰返し圧縮後の25%圧縮時硬度保持率が75%以上である請求項1または2に記載の網状構造体。
- 網状構造体の厚みが10mm以上300mm以下である請求項1~5のいずれかに記載の網状構造体。
- 網状構造体を構成する連続線状体の断面形状が中空断面および/または異型断面である請求項1~6のいずれかに記載の網状構造体。
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107614238A (zh) * | 2015-05-28 | 2018-01-19 | 喜恩吉股份有限公司 | 三维条形结构 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI597232B (zh) | 2012-05-07 | 2017-09-01 | 東洋紡股份有限公司 | 消音性與硬度優異之彈性網狀構造體 |
JP5569641B1 (ja) * | 2013-10-28 | 2014-08-13 | 東洋紡株式会社 | 静粛性と軽量性に優れた弾性網状構造体 |
TWI639549B (zh) | 2013-10-29 | 2018-11-01 | 東洋紡股份有限公司 | 壓縮耐久性優異之網狀構造物 |
JP5873225B1 (ja) * | 2014-07-04 | 2016-03-01 | パネフリ工業株式会社 | 立体網状繊維集合体 |
JP6492710B2 (ja) * | 2015-02-04 | 2019-04-03 | 東洋紡株式会社 | 低反発性に優れた網状構造体 |
US20180282924A1 (en) * | 2015-04-28 | 2018-10-04 | Toyobo Co., Ltd. | Net-like structure |
WO2017189095A1 (en) * | 2016-04-29 | 2017-11-02 | Dow Global Technologies Llc | Propylene-based cushioning network structures, and methods of manufacturing thereof |
EP3802659A1 (en) * | 2018-05-29 | 2021-04-14 | Dow Global Technologies LLC | Composite structure |
CN113164265A (zh) | 2018-11-12 | 2021-07-23 | 奥索冰岛有限公司 | 包含基于细丝的结构的医疗器材 |
US11883306B2 (en) | 2019-11-12 | 2024-01-30 | Ossur Iceland Ehf | Ventilated prosthetic liner |
CN111040464A (zh) * | 2019-12-31 | 2020-04-21 | 安吉万众化纤科技有限公司 | 一种高回弹环保垫、配方及使用 |
CN111041605A (zh) * | 2019-12-31 | 2020-04-21 | 安吉万众化纤科技有限公司 | 一种高回弹环保垫制造方法 |
CN113463217B (zh) * | 2021-07-12 | 2023-05-26 | 无锡科逸新材料有限公司 | 尺寸安定的层状弹性体 |
US11780523B2 (en) | 2021-12-03 | 2023-10-10 | Harley-Davidson Motor Company, Inc. | Multi-material support pad |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06293813A (ja) | 1993-02-12 | 1994-10-21 | Tosoh Corp | エチレン・α−オレフィン共重合体およびフィルム |
JPH0768061A (ja) | 1993-02-26 | 1995-03-14 | Toyobo Co Ltd | クッション用網状構造体及び製法 |
JP2001003257A (ja) * | 1999-06-21 | 2001-01-09 | Ain Kosan Kk | スプリング構造樹脂成形品及びその製造方法 |
JP2002061059A (ja) * | 2000-08-16 | 2002-02-28 | Ain Kosan Kk | スプリング構造樹脂成形品及びその製造方法 |
JP2004244740A (ja) | 2003-02-12 | 2004-09-02 | Toyobo Co Ltd | 敷マット |
JP2006200118A (ja) | 2004-12-21 | 2006-08-03 | Toyobo Co Ltd | ソフト反発性を有する弾性網状構造体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01207462A (ja) * | 1988-02-09 | 1989-08-21 | Risuron:Kk | フィラメントループ集合体からなるマット及びその製造方法及び装置 |
KR0130813B1 (ko) * | 1993-02-26 | 1998-04-03 | 시바타 미노루 | 쿠션용 망상 구조체 및 제법 |
TW276279B (ja) * | 1993-02-26 | 1996-05-21 | Toyo Boseki | |
JP2001061605A (ja) * | 1999-08-27 | 2001-03-13 | Toyobo Co Ltd | 車両用座席 |
EP1832675B1 (en) | 2004-12-21 | 2013-04-24 | Toyobo Co., Ltd. | Elastic mesh structure |
ATE525502T1 (de) * | 2006-10-03 | 2011-10-15 | Daiwabo Holdings Co Ltd | Verfahren zum kräuseln von verbundfaser und sie enthaltende fasermasse |
WO2012029324A1 (ja) * | 2010-09-01 | 2012-03-08 | 株式会社シーエンジ | 座席クッションの成形方法 |
JP5889013B2 (ja) | 2012-02-01 | 2016-03-22 | キヤノン株式会社 | 画像処理装置及び画像処理方法 |
JP5339107B1 (ja) | 2013-02-27 | 2013-11-13 | 東洋紡株式会社 | 圧縮耐久性に優れた網状構造体 |
-
2014
- 2014-09-30 CN CN201811302538.2A patent/CN109680413B/zh active Active
- 2014-09-30 US US15/026,424 patent/US9970140B2/en active Active
- 2014-09-30 KR KR1020167008288A patent/KR102083055B1/ko active IP Right Grant
- 2014-09-30 WO PCT/JP2014/076150 patent/WO2015050134A1/ja active Application Filing
- 2014-09-30 TW TW103133936A patent/TWI662166B/zh active
- 2014-09-30 EP EP14850151.3A patent/EP2966206B1/en active Active
- 2014-09-30 CN CN201480054790.XA patent/CN105612279A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06293813A (ja) | 1993-02-12 | 1994-10-21 | Tosoh Corp | エチレン・α−オレフィン共重合体およびフィルム |
JPH0768061A (ja) | 1993-02-26 | 1995-03-14 | Toyobo Co Ltd | クッション用網状構造体及び製法 |
JP2001003257A (ja) * | 1999-06-21 | 2001-01-09 | Ain Kosan Kk | スプリング構造樹脂成形品及びその製造方法 |
JP2002061059A (ja) * | 2000-08-16 | 2002-02-28 | Ain Kosan Kk | スプリング構造樹脂成形品及びその製造方法 |
JP2004244740A (ja) | 2003-02-12 | 2004-09-02 | Toyobo Co Ltd | 敷マット |
JP2006200118A (ja) | 2004-12-21 | 2006-08-03 | Toyobo Co Ltd | ソフト反発性を有する弾性網状構造体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2966206A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107614238A (zh) * | 2015-05-28 | 2018-01-19 | 喜恩吉股份有限公司 | 三维条形结构 |
EP3305500A4 (en) * | 2015-05-28 | 2018-05-16 | C-Eng Co., Ltd. | Three-dimensional crosspiece structure |
US10233073B2 (en) | 2015-05-28 | 2019-03-19 | C-Eng Co., Ltd. | Three-dimensional striped structure |
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