Please select the most similar patent number from A, B, C and D. Which number is?
A photosensitive grain-free printing plate, consisting of a plate base, a hydrophilic layer and a photosensitive layer, with the hydrophilic layer and the photosensitive layer being successively coated on the plate base. A hydrophilic coating is obtained by coating a composition of nano-scale and/or micron-scale particles or a composition containing nano-scale and/or micron-scale particles on the surface of the plate base. The hydrophilic coating thus obtained has an appropriate roughness, which imparts to the surface of the plate base hydrophilic and water-retaining properties. The presence of hydrophilic particles in nano scale and/or micron scale in the hydrophilic layer does not only ensure that the printing plate meets the requirements of ink absorption but also improves the abrasive resistance of the plate base surface, and furthermore maintains good cohesive forces between the hydrophilic layer and the printing base and between the hydrophilic layer and the photosensitive layer. In comparison with the existing photosensitive plates, the contamination caused by the waste acid and waste base liquids produced by electrolysis and oxidation of aluminium plates is avoided and the water and electricity consumption is reduced.
A: An antistatic nanofiber nonwoven material and manufacturing method. The nonwoven material comprises: a first hydrophilic layer (1), an antistatic composite layer (2), and a second hydrophilic (3) provided from top to bottom in that order. The antistatic composite layer (2) is assembled by alternatively stacking an antistatic nanofiber layer and a conductive nanofiber layer on each other. The first hydrophilic layer (1) and the second hydrophilic layer (3) are manufactured using a hydrophilic polypropylene nanofiber material prepared using a hydrophilized polypropylene, thereby improving an antistatic performance of the nonwoven material. The material has simple processing techniques and a low cost, is not affected by environmental humidity, and has excellent hydrophilic properties.
B: A nonwoven nanofiber antibacterial material and a method for preparing same. The nonwoven material comprises at least two nanofiber antibacterial layers (1). A hydrophilic nanofiber layer (2) is provided between two adjacent nanofiber antibacterial layers (1). Nanofibers (4) of the nanofiber antibacterial layers (1) are arranged crosswise in the three-dimensional space so as to form holes having nanoparticles and nanofiber clusters. Antibacterial nano-silver particles (31) and antibacterial nano-zinc oxide particles (32) are distributed in the holes. The nano-silver particles (31) and the antibacterial nano-zinc oxide particles (32) are distributed in the holes having nanoparticles and nanofiber clusters, and the antibacterial particles are not easy to fall off, which function together to enable the nonwoven nanofiber antibacterial material to have a lasting antibacterial property. Moreover, the hydrophilic nanofiber layer (2) provides the nonwoven nanofiber antibacterial material with a good hydrophilic property. The nonwoven nanofiber antibacterial material prepared with the preparation method of the present invention can be broadly applied to the fields of daily necessities, medical care, hygienic products for infants, children and adults and the like.
C: Disclosed is a heat-sensitive processless planographic printing plate material containing a thermosensitive protection layer. The planographic printing plate material sequentially comprises a supporting body, a hydrophilic layer, a heat-sensitive layer and a thermosensitive protection layer from the bottom up. The thermosensitive protection layer therein can not only isolate oxygen and protect the heat-sensitive layer from oxygen inhibition, but can also sense heat and allow a polymerization reaction to take place. Thus the binding force between same and the next layer is improved, so that the precision of printing plate images is high, the development performance is good, and the pressrun is high.
D: A light aerogel material. A preparation raw material of the material comprises a polymer material and clay. The light aerogel material is a light strong absorption material prepared by mixing the clay and the hydrophilic polymer material with other possibly added inorganic raw materials, performing high speed stirring by using water as a medium to become into the viscous state, and processing by means of a freeze drying method. The light aerogel material prepared in the present invention has nano-scale and micron-scale pore structures so that the material has a high water-absorbing capacity and water absorption. The light aerogel material can be used in a litter box. The density of the light aerogel material is controllable so as to meet requirements of different adsorption occasions such as a litter box. Meanwhile, the material can not only be crushed to form an irregular structure having a rough surface, but also be frozen forming into different special shapes by a die.
Answer: C