<p>Flexographic printing is a common printing method in the packaging field. The printing method is characterized primarily by the flexible printing plate and the low viscosity inks which make it suitable for use on almost any substrate. The object of this study was to obtain further knowledge of the some important mechanisms of flexographic printing and how they influence the print quality. The thesis deals with printing primarily on board and liner but also on newsprint with water-borne ink using a full-scale flexographic central impression (CI) printing press. Several printing trials have been performed with a focus on the chemical interaction between the ink and substrate and the physical contact between the ink-covered printing plate and the substrate.</p><p>Multicolour printing exposes the substrate to water from the water-containing ink. The emphasis was to investigate the relation between print quality and water-uptake of the paper surface with heat and water. Printing trials was carried out on substrates possessing a hydrophobic, and also a rather hydrophilic surface using a regular commercial water-borne ink. The favorable effect which water or surfactant solution had on the hydrophobic substrate with regard to print mottle could depend on its surface compressibility in combination with the hydrophobic nature of its surface that could affect the wetting properties.</p><p>Conventional printing involves physical contact between plate and ink and between ink and substrate. A method for measuring the dynamic nip pressure using thin load cells is presented. Print quality was influenced by the plate material. A correction procedure taking into account the size of the sensor was developed in order to estimate the maximum dynamic pressure in the printing nip. An attempt was made to identify essential mechanical and chemical parameters, and also geometrical properties of the plate that affected print quality. Laboratory printing trials were carried out and a multivariate analysis was applied for evaluation of print quality data. The impact of the plate properties on print quality was evident. The essential properties of the plate that influence print quality were the small-scale roughness and long-scale roughness.</p>

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My dissertation, Pen and Printing-Block: William Morris and the Resurrection of Medieval Paratextuality, considers William Morris’s influence on the rise of paratextual awareness, his negotiation strategies for Victorian England’s social identity, and his rhetorical construction of an idealized past through textual artifacts. The effect of Morris’s growing social awareness on his transition from illumination to print is reframed by considering his calligraphy as paratextual experiments, based on medieval examples, in combining graphic and discursive meanings with rhetorical and social dimensions. The varied and less ambitious agendas of those printers who followed Morris’s Kelmscott Press, however, limited Morris’s legacy in the book arts. The full significance of his illuminations’ meaningful interplay between text and image, and the social intent of these innovations applications in print, has received little critical attention. The opening chapter frames Morris’s visual work in light of his philosophies and introduces the major concerns of material art, the role of history, the limits of language, and the question of meaningful labour. The second chapter surveys select predecessors of Morris’s developing conception of the Gothic, the significance of architecture as its defining form, and the irreplaceability of the physical past. The third chapter considers the role of the illuminated manuscript in Pre-Raphaelite art, tracing Morris’s calligraphic experiments chronologically while identifying medieval inspirations and examining his artistic development. These experiments led to his final collaborative manuscript, the illuminated Æneid which is the fourth chapter’s focus. The sophistication of its paratextual elements is discussed in light of its unique physicality and limitations. The fifth chapter asserts the Kelmscott Press’s role in balancing craftsmanship and aesthetic paratextual strategies with reproducible models. The Kelmscott Chaucer is the culmination of these strategies, and it is compared to the visual rhetoric of its predecessors. The final chapter compares the philosophies and calligraphic elements of major private presses that followed Kelmscott’s legacy. This evolution of aesthetic, social, and practical considerations is also identified in the work of selected Canadian printers, and a final note considers the implications of the rise of immaterial digital text (radiant textuality) for the continuation of material paratextuality’s role in the future.

The following thesis describes and analyses the representation of lung cancer in the Canadian print media. The thesis employs a theoretical framework comprised of Giddens’ theory of reflexivity and Goffman’s theory of framing, to understand the social dynamics of negotiation behind the disease’s portrayal in the media, in a late modern context. Late modernity was defined by institutional reflexivity and a focus on understanding and mitigating risk. The research was conducted through a content analysis and examined quantitative trends that contributed to a subsequent qualitative interpretation. The results show that the coverage of lung cancer decreased over time. The analysis shows a discourse of a biomedical institution that has unsuccessfully controlled the disease, a lack of patient advocacy, particularly among celebrities, and a continued conflation of smoking behaviour and lung cancer, all of which contributed to the decreasing coverage. The framing processes point to a society focused on understanding risk through studying the disease’s causes, as well as one concerned with legislative debate and behavioural prevention. The emergence of a frame focused on the patient’s lived experience might contribute to an improved representation of the disease.

In 1655 and again in 1686-1689, the Waldensians of Piedmont were massacred by the Duke of Savoy after he issued edicts forbidding the practice of their religion. The Waldensians were later followers of the medieval religious movement of the Poor of Lyons, declared heretical in 1215. The Waldensians associated with the Reformation in 1532, and thus formed a link with diverse groups of Protestants across Europe. In the periods immediately surrounding both massacres, an outpouring of publications dedicated to their plight, their history, and their religious identity appeared, a large number of which emerged in London. On both occasions, the propaganda gave rise to international sympathy and encouraged international intervention, eventually provoking the Duke to rescind the edicts that had instigated the massacres. While most contemporary scholars consider the Waldensians to have been fully absorbed into Protestantism after 1532, it is clear from the writings of both the Waldensians and their sympathizers that they considered themselves a separate entity: the inheritors of a long tradition of dissent from the Catholic Church based on their own belief in the purity of the Gospel. The Waldensian identity was based on a history of exclusion and persecution, and also on a belief that they had transmitted the true embodiment of Christianity through the centuries. The documents that were published surrounding the massacres address the legitimacy of the Waldensian identity based on centuries of practice. English and continental Protestants identified with the Waldensians, who provided ancient ties and legitimacy to their ‘new’ religion, and the Waldensians adopted that identity proudly, all the while claiming continuity. Protestants also used the Waldensians in propagandist documents, most often to justify political or religious actions and ideologies. The continuity of Waldensianism through the Reformation became crucially important for the wider umbrella of Protestantism as a legitimizing factor for the movement. This thesis investigates the claims of continuity and finds that while the Waldensians underwent a dramatic change in religious doctrine to conform to the Reformation, their belief in the continuity of their religious identity can be validated by examining religion from a socio-cultural perspective that takes aspects other than theology into consideration.

The news media are powerful purveyors of culture in North America. Crime news reporting particularly is an influential means by which the news media define the boundaries of deviant and non-deviant behaviour. For the purposes of the present research, I examined the ways that the print news media constructed cases of male-perpetrated Intimate Partner Homicide (IPH) in Alberta. Using a social constructionist theoretical orientation grounded in an Ethnographic Content Analysis methodology, I examined 381 newspaper articles that discussed four separate incidents of male-perpetrated IPH. Approaching these data from the perspective of media reciprocity and a social constructionism epistemology, I considered the various ways that the print media presented these cases for their audience, but also the various ways that the audiences expectations and the general zeitgeist of the culture may have affected this presentation. Much of the dominant discourse in the cases I studied was consistent with previous research examining IPH presentations in the news media, namely that the media present victims and perpetrators in stereotyped ways according to their gender and ethnicity. However, I also examined some less prominent themes, including those that were pro-feminist, ambivalent, fictionalized, and constructed for the purpose of audience titillation and voyeurism. Additionally, owing to the qualitative nature of the methodology, I was able to examine discussions that subverted the stereotypical representation of victims and perpetrators in the news media and examine how these presentations could affect audience understanding of the phenomenon of IPH. Overall, the present project led to a discussion of how the media construct various facets of psychology and feminism and how these facets are in turn constructed by society in a reciprocal process whereby the media influence culture and culture correspondingly affects the media.

The news media are powerful purveyors of culture in North America. Crime news reporting particularly is an influential means by which the news media define the boundaries of deviant and non-deviant behaviour. For the purposes of the present research, I examined the ways that the print news media constructed cases of male-perpetrated Intimate Partner Homicide (IPH) in Alberta. Using a social constructionist theoretical orientation grounded in an Ethnographic Content Analysis methodology, I examined 381 newspaper articles that discussed four separate incidents of male-perpetrated IPH. Approaching these data from the perspective of media reciprocity and a social constructionism epistemology, I considered the various ways that the print media presented these cases for their audience, but also the various ways that the audiences expectations and the general zeitgeist of the culture may have affected this presentation. Much of the dominant discourse in the cases I studied was consistent with previous research examining IPH presentations in the news media, namely that the media present victims and perpetrators in stereotyped ways according to their gender and ethnicity. However, I also examined some less prominent themes, including those that were pro-feminist, ambivalent, fictionalized, and constructed for the purpose of audience titillation and voyeurism. Additionally, owing to the qualitative nature of the methodology, I was able to examine discussions that subverted the stereotypical representation of victims and perpetrators in the news media and examine how these presentations could affect audience understanding of the phenomenon of IPH. Overall, the present project led to a discussion of how the media construct various facets of psychology and feminism and how these facets are in turn constructed by society in a reciprocal process whereby the media influence culture and culture correspondingly affects the media.

My dissertation, Pen and Printing-Block: William Morris and the Resurrection of Medieval Paratextuality, considers William Morris’s influence on the rise of paratextual awareness, his negotiation strategies for Victorian England’s social identity, and his rhetorical construction of an idealized past through textual artifacts. The effect of Morris’s growing social awareness on his transition from illumination to print is reframed by considering his calligraphy as paratextual experiments, based on medieval examples, in combining graphic and discursive meanings with rhetorical and social dimensions. The varied and less ambitious agendas of those printers who followed Morris’s Kelmscott Press, however, limited Morris’s legacy in the book arts. The full significance of his illuminations’ meaningful interplay between text and image, and the social intent of these innovations applications in print, has received little critical attention. The opening chapter frames Morris’s visual work in light of his philosophies and introduces the major concerns of material art, the role of history, the limits of language, and the question of meaningful labour. The second chapter surveys select predecessors of Morris’s developing conception of the Gothic, the significance of architecture as its defining form, and the irreplaceability of the physical past. The third chapter considers the role of the illuminated manuscript in Pre-Raphaelite art, tracing Morris’s calligraphic experiments chronologically while identifying medieval inspirations and examining his artistic development. These experiments led to his final collaborative manuscript, the illuminated Æneid which is the fourth chapter’s focus. The sophistication of its paratextual elements is discussed in light of its unique physicality and limitations. The fifth chapter asserts the Kelmscott Press’s role in balancing craftsmanship and aesthetic paratextual strategies with reproducible models. The Kelmscott Chaucer is the culmination of these strategies, and it is compared to the visual rhetoric of its predecessors. The final chapter compares the philosophies and calligraphic elements of major private presses that followed Kelmscott’s legacy. This evolution of aesthetic, social, and practical considerations is also identified in the work of selected Canadian printers, and a final note considers the implications of the rise of immaterial digital text (radiant textuality) for the continuation of material paratextuality’s role in the future.

The objective of this study was to evaluate and compare the print performance of some of the new most promising, cost effective absorbent pigments specialised for inkjet coatings on the market in a continuous drive to find an alternative to silica. The target was a lower production cost for ArjoWiggins inkjet products, OMD 01 and OMD 02. Five absorbent pigments are being evaluated through measuring the qualities of the coating mix itself, visual evaluations of print performance and physical testing of the coated paper. Pigments 1,2 and 3, which all are said to be tailored for inkjet coatings, did not reach the print performance needed for an OMD 01 and OMD 02 equal, due to severe bleed and feathering identified especially on the Epson 950 printer. They are therefore currently not seen as viable formulations. A blend of 50% pigment 5 and 50% silica had excellent print performance as OMD 01 and OMD 02 equivalents and is therefore recommended as a potential alternative to 100% silica. It is of the company’s interest to find a more cost effective solution to their inkjet coatings, and a 50/50 blend of Pigment 5 will save the company more than 35 000 euro per year.

Over the past few years, manufacturing companies have had to deal with an increasing demand for feature-rich products at low costs. The pressures exerted on their existing manufacturing processes have lead manufacturers to investigate internet-based solutions, in order to cope with growing competition. Today, the availability of powerful and low cost 3D tools, along with web-based technologies, provides interesting opportunities to the manufacturing community, with solutions directly implementable at the core of their businesses and organizations. The wooden sign is custom i.e. each sign is completely different from each other. Mass Customization is a paradigm that produces custom products in masses. A wooden sign is custom in nature, and each sign must be completely different from another. Although process planning for mass customized products is same, the tool path required to CNC machine the custom feature varies from part to part. If the tool path is created manually the economics of mass production are challenged. The only viable option is to generate the tool path automatically; furthermore, any time savings in the tool path lead to better profit margins. This thesis presents the automatic web-based tool path planning method for machining sculptured wooden sign on 3 axis Computer Numerical Controlling (CNC) Machines using optimal and cost-effective milling cutters. The web-based tool path planning strategy is integrate with web-based CAD system to automatically generate tool paths for the CAD model using optimal cutter within desired tolerances. The tool path planning method is divided into two parts: foot print (path along which cutter moves) and cutter positioning. The tool path foot print is developed during design stage from the CAD model based on the type of surface to be machined. The foot print varies from part to part which facilitates the mass customization of wooden sign. After designing foot print, the foot print is discretized into points and the gouge-free cutter position at each of these points is found using "Dropping Method". The Dropping Method where cutter is dropped over the work piece surface, and the highest depth at which cutter can go without gouging the surface is calculated. This is repeated for all the position along the foot print. This tool path planning strategy is developed for ball nose, flat-end and radiused end milling cutter for machining wooden sign. The tool path generated using this method is optimized for machining time, tool path generation time and final surface finish. The bucketing technique is developed to optimize tool path generation time, by isolating the triangles which has possibility of intersection at particular position. The bucketing Technique reduced the tool path computation by 75 %, and made tool path generation faster. The optimal cutter selection algorithm is developed which selects best cutter for machining the surface based on the scallop height and volume removal results. The radiused end milling cutter results in highest volume removal which results in lower machining time compared to ball nose end milling cutters, but the scallop heights is higher. However, the scallop height in the radiused end milling cutter is higher only in few regions which reduces the final surface finish. For a sign, it was found around the boundary of logo, outline of lettering, interface of border and background. Thus, in order to achieve higher surface finish and lower machining time, a separate tool path is developed using "Pencil Milling Technique" which will remove the scallops from the regions that was inaccessible by radiused end mills. This tool path with the smaller cutter will move around the boundary of logo and lettering, and clean-up all the scallops left on the surface. The designed tool path for all the three cutters were tested on maple wood and verified against the actual Computer Aided Design model for scallop height and surface finish. The numerical testing of tool path was carried out on a Custom Simulator, ToolSim and was later confirmed by actually machining on a 3 axis CNC machine. The same sign was machined with variety of milling cutters and the best cutter was selected based on the minimum scallop and maximum volume removal. The results of the experimental verification show the method to be accurate for machining sculptured sign. The average scallop height in a machined using 1/8 th inch radiused end milling cuter and using Pencil tool path on the machined surface is found to be 0.03989 mm (1.5708 thou).