A friction shaft for a slitter has winding tubes disposed on an outer surface thereof to roll unit materials formed by cutting a raw material such as various kinds of paper, fabric, or film with predetermined intervals includes a first rotary shaft, tubes, brake pads, a second rotary shaft, pressing members, first rotary tubes, second rotary tubes, first and second bearings, first elastic members, guide members, second elastic members, and lugs for clamping.

The present invention relates to a heat treatment apparatus for high-quality graphene synthesis, and more particularly, to a heat treatment apparatus for high-quality graphene synthesis capable of more effectively depositing graphene on a catalytic metal film.

The present invention provides a heat treatment apparatus for high-quality graphene synthesis comprising: an upper roll chamber, a deposition chamber 20 connected to the upper roll chamber to deposit graphene on a catalytic metal film, and a lower roll chamber mounted on a lower portion of the deposition chamber, in which the upper roll chamber includes a supply roller supplying the catalytic metal film and a winding roller winding the catalytic metal film deposited with the graphene, the lower roll chamber includes a lower direction shifting roller shifting a direction of the catalytic metal film which is supplied from the supply roller, deposited with the graphene in the deposition chamber, and wound on the winding roller, and in the deposition chamber, a catalytic metal film at a supply side transferred from the supply roller to the lower direction shifting roller and a catalytic metal film at a discharge side transferred from the lower direction shifting roller to the winding roller are passed, and a heater portion is mounted around the catalytic metal film at the supply side and the catalytic metal film at the discharge side.

The present invention relates to a heat treatment apparatus for high-quality graphene synthesis, and more particularly, to a heat treatment apparatus for high-quality graphene synthesis capable of more effectively depositing graphene on a catalytic metal film.

The present invention provides a heat treatment apparatus for high-quality graphene synthesis comprising: an upper roll chamber, a deposition chamber 20 connected to the upper roll chamber to deposit graphene on a catalytic metal film, and a lower roll chamber mounted on a lower portion of the deposition chamber, in which the upper roll chamber includes a supply roller supplying the catalytic metal film and a winding roller winding the catalytic metal film deposited with the graphene, the lower roll chamber includes a lower direction shifting roller shifting a direction of the catalytic metal film which is supplied from the supply roller, deposited with the graphene in the deposition chamber, and wound on the winding roller, and in the deposition chamber, a catalytic metal film at a supply side transferred from the supply roller to the lower direction shifting roller and a catalytic metal film at a discharge side transferred from the lower direction shifting roller to the winding roller are passed, and a heater portion is mounted around the catalytic metal film at the supply side and the catalytic metal film at the discharge side.

A method of winding a pre-impregnated fabric strip onto a sloping surface includes a step of deforming the pre-impregnated fabric strip by applying differing traction forces to the pre-impregnated fabric strip, the traction forces being directed in a longitudinal direction of the strip, the values of the applied traction forces differing across the transverse direction of the strip. The differing traction forces are applied by tensioning the pre-impregnated fabric strip between firstly a pair of brake rollers and secondly a traction device present downstream from the pair of brake rollers, the traction device driving the pre-impregnated fabric strip at speeds that differ across the transverse direction of the strip. The method further includes winding the deformed strip onto a surface of revolution of winding tooling including at least one portion that forms a nonzero angle with the axis of revolution of the surface of revolution.

A machine for producing coils of prestretched extendible film has a prestretching unit (10) for prestretching the film (F) and a winding unit (100) for winding the film in a coil provided with a series of rollers around which the advancing film winds partially; the winding unit comprises a winding roller (104) in pressing contact against the coil (R) of the prestretched film in winding progress; to obtain coils of constant diameter and high winding quality the final contact position is varied of the winding roller (104) against the coil (R) according to the length of the wound film and according to the required diameter of coil.

A machine for producing coils of prestretched extendible film has a prestretching unit (10) for prestretching the film (F) and a winding unit (100) for winding the film in a coil provided with a series of rollers around which the advancing film winds partially; the winding unit comprises a winding roller (104) in pressing contact against the coil (R) of the prestretched film in winding progress; to obtain coils of constant diameter and high winding quality the final contact position is varied of the winding roller (104) against the coil (R) according to the length of the wound film and according to the required diameter of coil.

The present invention provides an improved belted reel which is particularly well suited for the winding of soft, bulky tissue webs and overcomes the limitations of the prior art. The belted reel is capable of providing coordinated web tension and nip control by providing the winding parent roll with two nip pointsthe first nip formed between the winding roll and the second between the winding roll and a second support drum. Preferably the drum encircled by the endless belt lies above the second support drum and the first and second nip points lie in the same vertical plane.

The present invention provides an improved belted reel which is particularly well suited for the winding of soft, bulky tissue webs and overcomes the limitations of the prior art. The belted reel is capable of providing coordinated web tension and nip control by providing the winding parent roll with two nip pointsthe first nip formed between the winding roll and the second between the winding roll and a second support drum. Preferably the drum encircled by the endless belt lies above the second support drum and the first and second nip points lie in the same vertical plane.

There is provided a liquid discharge apparatus including: a transporting unit that transports a medium in a transporting direction, a discharge portion that discharges a liquid to the medium positioned in a discharge range, and a supporting portion that has a first supporting surface and a second supporting surface, as a supporting surface supporting the medium to be transported by the transporting unit, in which the first supporting surface supports the medium in the discharge range and does not have unevenness in a width direction intersecting the transporting direction, the second supporting surface supports the medium on a downstream side of the discharge range in the transporting direction and includes uneven portions in which a first portion and a second portion which is further recessed than the first portion are formed alternately in the width direction.

This invention provides a nip roller that has heat resistance and abrasion resistance, wherein a surface of a substantially cylindrical core is provided with a layer of a rubber, the rubber has a change in hardness in a heat aging test at 150 C. for 72 hours according to JIS K6257:2010 which is less than or equal to 15 degrees in type A durometer hardness according to JIS K6253:2012, and a surface of the layer of the rubber is provided with a layer of an amorphous carbon coat.