Screen Holdings Co., Ltd.

Ryota Uemura

Keisuke Hirai

Kenta Hiramatsu

Yoshikuni Takeichi

Takeshi Matsuda

Kazuhiko Asada

Shinsuke Yamashita

The anti-drop membersandare provided to each of the air turn barsand, and the respective anti-drop peripheral surfacesof the anti-drop membersandadjoin the support peripheral surfaceof each of the air turn barsand. In this configuration, on the occurrence of oblique traveling of the printing medium M, the printing medium M is deviated from the support peripheral surfaceof each of the air turn barsandto the anti-drop peripheral surfaceof the anti-drop memberor. Specifically, the anti-drop peripheral surfaceof each of the anti-drop membersandallows the printing medium M to be supported while providing the clearance Δ from the front surface Mof the printing medium M deviated by the oblique traveling.

Drying apparatus, printing medium anti-drop method and non-contact support member position adjusting method

The wind velocity of the air injected by the air-blow dryersis lower than that of the air injected by the air-blow dryers. That is, since a large amount of moisture remains on the front surface Mof the printing medium M passing through the air-blow dryers, the printing medium M is dried while the flow of the aqueous inks is suppressed by injecting the air at a lower wind velocity. On the other hand, the moisture decreases on the front surface Mof the printing medium M dried by the air-blow dryersand the fluidity of the aqueous inks is reduced. Accordingly, the drying of the printing medium M is promoted by injecting the air at a high wind velocity to the printing medium M passing through the air-blow dryers

Drying apparatus, printing system and drying method for drying printing medium by hot wind

In the air-blow dryers, the back surface Mof the printing medium M is supported by the rollerswhile the hot wind is injected from the nozzlesto the front surface Mof the printing medium M. By extending the printing medium M along the rollers, the evaporation of the moisture can be promoted by the hot wind while the formation of creases of the printing medium M is suppressed against the influence of the temperature distribution caused by the latent heat of the moisture on the printing medium M. After a certain amount of the moisture is evaporated, the temperature of the printing medium M becomes relatively uniform. In the air-blow dryers, the printing medium M is dried by injecting the hot wind to the printing medium M from the nozzlesandfrom both sides.

Drying apparatus, printing system and drying method that inject hot wind from nozzles to surface of recording medium

The printing medium M after color printing is performed on the front surface M(recording surface) by the color printing unitcan be conveyed while the front surface Mand the back surface Mof the printing medium M are inverted twice by the only rollersto(rotary bodies) in contact with the back surface M(non-recording surface) of the printing medium M (inverting conveying part). In this way, without providing air turn bars, a time to convey the printing medium M from the color printing unitto the white printing unitcan be secured while the printing medium M is firmly supported by the rollerstoin contact with the back surface Mof the printing medium M.

Printing apparatus, printing system and printing method

A web drying apparatus, comprises: a blow-drying part which has two blower units arranged on both sides of web which is transferred in a transfer direction, and injects gas onto the web passing through a dry path between the two blower units; a housing which has a sidewall provided with an opening facing the dry path from the transfer direction, through which the web passes in the transfer direction through the opening, and houses the blow-drying part; an exhaust part which is disposed between the sidewall and the blow-drying part in the housing and exhausts gas from the inside of the housing to the outside of the housing; and a rectifying member which is disposed between the blow-drying part and the exhaust part in the housing and faces the web being transferred in the transfer direction.

Web drying apparatus and web drying method

A web drying apparatus, comprises: two blower units which are arranged vertically between an upper dry path and a lower dry path disposed below the upper dry path and at least partially overlap each other when viewed from a vertical direction. One blower unit disposed on an upper side, the other blower unit disposed on a lower side. The lower end part of the one blower unit deviates from the upper end part of the other blower unit in the horizontal direction and protrudes to be lower than the upper end part in the vertical direction.

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Kyoto, Japan

Ryota Uemura