The invention relates to a rubberized strength member for elastomeric products, especially vehicle tires, wherein the strength member includes at least one first yarn, to a process for producing the rubberized strength member and to a motor vehicle tire including at least one rubberized strength member. According to the invention, the first yarn is a yarn of HMLS-PET comprising recycled PET.

Disclosed in the present disclosure are a cut-resistant multifunctional melt-spun composite fiber, and a fabrication method and application thereof. Porous zeolite, a carbon nanotube and an ultra-high molecular weight polyethylene microfiber are taken as a composite functional substrate. A special crystal structure of the porous zeolite in a fiber allows the fiber to have a larger stress field and stronger adsorption performance on vapor molecules in an environment. The carbon nanotube has excellent electrical conductivity, endowing the fiber with an antistatic effect, and a tubular structure of the carbon nanotube effectively reduces material density, such that light weight of the fiber is achieved. Finally, the ultra-high molecular weight polyethylene microfiber selected by the present disclosure can improve fiber strength and performance stability, and further forms a synergistic effect together with the porous zeolite and the carbon nanotube, such that the obtained fiber product has diversified functions.

Disclosed in the present disclosure are a cut-resistant multifunctional melt-spun composite fiber, and a fabrication method and application thereof. Porous zeolite, a carbon nanotube and an ultra-high molecular weight polyethylene microfiber are taken as a composite functional substrate. A special crystal structure of the porous zeolite in a fiber allows the fiber to have a larger stress field and stronger adsorption performance on vapor molecules in an environment. The carbon nanotube has excellent electrical conductivity, endowing the fiber with an antistatic effect, and a tubular structure of the carbon nanotube effectively reduces material density, such that light weight of the fiber is achieved. Finally, the ultra-high molecular weight polyethylene microfiber selected by the present disclosure can improve fiber strength and performance stability, and further forms a synergistic effect together with the porous zeolite and the carbon nanotube, such that the obtained fiber product has diversified functions.

A method for producing a multifilament, comprising (A) heat-melting a raw material composition to obtain a molten product and discharging the molten product through the discharge holes to obtain a plurality of raw filaments in a molten state; and (B) blowing gases onto the plurality of raw filaments, comprising (B1) blowing a first gas onto the plurality of raw filaments in the molten state to cool raw filaments and (B2) blowing a second gas onto the plurality of raw filaments cooled in (B1). In (B1), a temperature of the first gas is (Tc45 C.) to (Tc30 C.), Tc is a crystallization temperature of the poly(3-hydroxyalkanoate) resin, and in (B2), a temperature of the second gas is higher than the temperature of the first gas, and is (Tc30 C.) to (Tc10 C.). The raw material composition contains a poly(3-hydroxyalkanoate) resin. An average value of fineness of the single filaments is 15 dtex or less.

A method for producing a multifilament, comprising (A) heat-melting a raw material composition to obtain a molten product and discharging the molten product through the discharge holes to obtain a plurality of raw filaments in a molten state; and (B) blowing gases onto the plurality of raw filaments, comprising (B1) blowing a first gas onto the plurality of raw filaments in the molten state to cool raw filaments and (B2) blowing a second gas onto the plurality of raw filaments cooled in (B1). In (B1), a temperature of the first gas is (Tc45 C.) to (Tc30 C.), Tc is a crystallization temperature of the poly(3-hydroxyalkanoate) resin, and in (B2), a temperature of the second gas is higher than the temperature of the first gas, and is (Tc30 C.) to (Tc10 C.). The raw material composition contains a poly(3-hydroxyalkanoate) resin. An average value of fineness of the single filaments is 15 dtex or less.

A melt spinning apparatus for extruding a first melt and a second melt includes a first heat transfer fluid housing for providing a first heat transfer medium and a second heat transfer fluid housing for providing a second heat transfer medium. A pump carrier with a first pump device for pumping the first melt towards the second heat transfer fluid housing is mounted in the first heat transfer fluid housing. A spinning pump carrier, in which a spinneret pack for extruding the first melt and the second melt and a second pump device for pumping the second melt towards the spinneret pack are mounted, is mounted in the second heat transfer fluid housing. Such a melt spinning apparatus may be disassembled and cleaned via a method.

A melt spinning apparatus for extruding a first melt and a second melt includes a first heat transfer fluid housing for providing a first heat transfer medium and a second heat transfer fluid housing for providing a second heat transfer medium. A pump carrier with a first pump device for pumping the first melt towards the second heat transfer fluid housing is mounted in the first heat transfer fluid housing. A spinning pump carrier, in which a spinneret pack for extruding the first melt and the second melt and a second pump device for pumping the second melt towards the spinneret pack are mounted, is mounted in the second heat transfer fluid housing. Such a melt spinning apparatus may be disassembled and cleaned via a method.

The present disclosure relates to a polyethylene yarn that enables the production of protective article capable of providing excellent wearability while having high cut resistance, a method for manufacturing the same, and a protective article produced using the same.

The present disclosure relates to a polyethylene yarn that enables the production of protective article capable of providing excellent wearability while having high cut resistance, a method for manufacturing the same, and a protective article produced using the same.

A method of creating a soft and lofty continuous fiber nonwoven web is provided. The method includes providing molten polymer to a spinneret defining a plurality of orifices, and flowing a fluid intermediate the spinneret and a moving porous member. The moving porous member is positioned below the spinneret. The method includes using the fluid to draw or push the molten polymer, in a direction that is toward the moving porous member, through at least some of the plurality of orifices to form a plurality of individual continuous fiber strands. The method includes depositing the continuous fiber strands on the moving porous member at a first location to create an intermediate continuous fiber nonwoven web, and removing and/or diverting some of the fluid proximate to the first location to maintain loft and softness in the deposited intermediate continuous fiber nonwoven web.