Effect of microwave drying of the spines of book blocks on the quality of printed materials

Havenko, Svitlana; Korobchynskyi, Maksym; Yordan, Hanna; Kadyliak, M. S.; Bernatsek, Volodymyr

doi:10.15587/1729-4061.2017.118006

Cited by 2 publications

(4 citation statements)

References 2 publications

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“…However, unlike the results of studies [6,7,9], the obtained data suggest that after the application of an adhesive, in the process of screw folding, the edges and flaps are attached to the main plane of the cover not at the same time. The attachment occurs gradually as they fold in the folding device, as shown in Fig.…”

Section: Discussion Of Results Of Studying the Technological Featurescontrasting

confidence: 93%

“…In this sense, failure to comply with the specified conditions for dimensional deviations, given in Table 1, could lead, after connecting a book block to the cover, to the formation of edging with deviations. It should be noted that the above circumstances are in agreement with the practical data reported in works [6,7,9], whose authors also stress maintaining the technological stability in the production of glued products under the operating conditions of coordinate-transporting systems.…”

Section: Discussion Of Results Of Studying the Technological Featuressupporting

confidence: 90%

“…Proceeding from the basic provisions of the theory of heat and mass transfer, paper [9] investigated the dynamics of the natural and microwave drying of adhesive compositions used for the manufacture of book product components. The authors established the influence of the processes that accelerate the polymerization of adhesive composition; however, additional research is needed to define the bonding conditions, at clamping.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Defining technological features in the manufacture of semi-hard book covers

Paliukh

Kyrychok

Тріщук

et al. 2020

EEJET

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An experimentally determined list of the required and sufficient technological operations to produce semi-hard book co vers has been proposed, with the calculated contour and structural design, which implies strict tolerances in the deviations from a rectangular planar geometry. It has been proven that the main features in the modeling and manufacturing of covers affect the conditions for ensuring tolerances, as well as stable circulation quantity. They imply that the edges and flaps as the additional structural elements of the co vers form, after folding and gluing to the main part, a double composite structure. Due to this, there are no laps in the joints of edges and flaps, so the plane of the inner part of the covers acquires a flat shape, without defective contours. Therefore, one can argue that the parallel deviation of the outer contours of semi-hard covers from a rectangular design will not exceed the ranges for bookbinding divided into groups based on quality indicators. It should be particularly noted that the conditions for providing tolerances, circularity stability, as well as the composite structure of semi-hard covers, are influenced by the roller-roll mechanisms, which perform their rotary pressing and high-speed coordinated transportation during manufacturing. The current study into the effect exerted by the plastic deformation has established the mechanisms of the process of improving a cylindrical surface of the rotary-pressing rollers. It has been proven that they imply the formation of a completely regular microrelief of the hexagonal type with a concave shape and a partly regular micro-relief, in the form of the flat-parallel slotted recesses arranged at an angle to the central axis of the rollers. As well as the application of technology of the ionic nitriding of the obtained microrelief in the plasma of the helicon discharge. The final stage of strengthening a near-surface layer of the rollers with ionic nitriding in the plasma of the helicon discharge captures the maximum level of the increased durability of the near-surface layer. It fluctuates in the range of the ratio of the plane onto which a regular microrelief is partially applied to the general plane of the roller's surface

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Section: Discussion Of Results Of Studying the Technological Featurescontrasting

confidence: 93%

Section: Discussion Of Results Of Studying the Technological Featuressupporting

confidence: 90%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Defining technological features in the manufacture of semi-hard book covers

Paliukh

Kyrychok

Тріщук

et al. 2020

EEJET

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“…У праці [3] досліджувалась кінетика природнього та мікрохвильового сушін ня клейових з'єднань книжкових блоків, за результатами яких визначено оптималь ні режими сушіння та їх вплив на якість кінцевого продукту -книги. Автори у статті [4] досліджують зміну шорсткості корінців залежно від товщини блоків оброблених торцевими фрезами.…”

unclassified

Research of the strength and durability of perfect bound book blocks

Knysh¹,

Kravchuk²,

Ternytskyi³

2018

Print. Publish.

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Досліджено міцність і довговічність незшивного клейового скріплення книжкових блоків за умови обробки корінців дисковими різцями нахиленими під кутом. Дослідження проводились на експериментальному стенді змонтованому на машині незшивного скріплення Trendbinder. За результатами експериментальних досліджень визначено оптимальні, з точ ки зору забезпечення максимальної міцності та довговічності, режими оброб ки корінців дисковими різцями. Ключові слова: клейове скріплення, книжковий блок, корінець, дисковий різець, «pull»тест, «flex»тест.

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Effect of microwave drying of the spines of book blocks on the quality of printed materials

Cited by 2 publications

References 2 publications

Defining technological features in the manufacture of semi-hard book covers

Defining technological features in the manufacture of semi-hard book covers

Research of the strength and durability of perfect bound book blocks

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