MARIO HUMBERTO GUTIERREZ VILLARREAL,MARIA ALMENDRA ORDAZ QUINTERO,LUIS FRANCISCO RAMOS DE VALLE
申请号：
MX2010014412
公开号：
MX367114B
申请日:
2010.12.21
申请国别(地区):
MX
年份:
2019
代理人:
摘要：
The non-woven fabric is made of thin high-density polyethylene fibres by a spunbonded process, these are attached by heat and high pressure, the fabric being designed for graphic applications and may be print by different traditional processes such as flexography printing, rotogravure printing, lithographic printing, etc. Nevertheless, these techniques or printing processes have certain disadvantages since they require high-cost equipments, require a large volume and are designed for producing a high number of repetitions or printed copies. The need of generating a reduced number of copies using an easy technique by lots and at low costs, with quality and custom character using a process by charges, is achieved by the inkjet process. The natural Tyvek commercial film currently available on the market has a poor quality printing upon being subjected to a direct pressure during the inkjet process； the characteristics of colour and image definition are not reached compared to traditional printing techniques, so that the purpose of the invention is to modify the surface of the Tyvek natural non-woven fabric by increasing the surface tension, and applying a hydrophilic coating in order to improve the affinity thereof with the water based printing inks using the inkjet process.La tela no tejida fabricada a partir de fibras delgadas de polietileno de alta densidad mediante el proceso de "spunbonded" (consolidado por giro), que están unidas por calor y alta presión, está diseñada para aplicaciones gráficas y puede ser impresa por diversos procesos tradicionales como flexografía, rotograbado, litografía etc. Sin embargo estas técnicas o procesos de impresión presentan ciertas desventajas pues requieren equipo de alto costo, ocupan gran volumen y están diseñadas para producir un alto número de repeticiones o copias impresas. La necesidad de generar un número reducido de copias utilizando una técnica sencilla por lotes y de bajo costo, con calidad y carácter personalizado usan
