Claw feet are accessories of freestanding cast iron bath tubs. Color of claw feet can be white, black, chrome, brushed nickel and oil rubbed bronze. Material of the feet is cast iron. The claw feet are in many different shapes and sizes.
We supply faucet of Cast Iron Sink.
The reasons for the poor formation are different, but the macro-conclusion of “domestic equipment is backward†is an argument that everyone agrees. This argument does not reveal the specific reasons for poor formation. The technicians of Tianjin Jinxing Paper Co., Ltd. started from the study of the “component fiber behavior†in the slurry and finally revealed that the excessive loss of “fine fiber components†(through the 70-mesh screen) is the real cause of poor formation. the reason.
The normal structure of the paper sheet is the result of the long and short balance of fibers and fine fibers present and evenly interwoven. The long fiber component constitutes the web skeleton of the paper sheet, and the fine fibers "homogenize and intensify" this loose framework structure by "filling in" and "gluing" the "holes" in the skeleton. Without the small fibers, the homogenization and strengthening of the sheets will not be possible.
The specific gravity of fine fiber slurry is about 20%, but its specific surface area is 2-5 times that of long fiber. The large amount of "hydroxyl" exposed by a large specific surface area plays a crucial role in sheet properties. When the slurry is dehydrated, the strong potential formed by the small fiber population increases the “electrostatic repulsion†of the fiber, effectively resists the “flocculation†of the fiber, and improves the formation of papermaking. As the wet paper sheet dries, the population of fine fibers filled in the network voids “associates†with the long fibers in a “glue†form into “hydrogen bondsâ€, thereby increasing the tensile strength, tear strength, and strength of the sheet. Pulling strength reduces the chance of the page being printed. The filling of holes in the long fiber network by the fine fibers makes the paper sheet uniform in appearance, fine in appearance, smooth in gloss, and improved in print clarity and opacity.
Paper sheets require small fibers. The loss of small fibers can cause the system to lose balance. An unbalanced system can't produce high quality products. However, the process of losing small fibers in the process abounds (such as flotation, washing, concentration and dehydration, etc.). After the loss of fine fibers, the proportion of long fiber components in the slurry is too large, the entanglement is enhanced, the system potential shifts toward the “isoelectric pointâ€, the electrostatic repulsion between the fibers decreases, and the fiber flocculation becomes severe. Obvious drop. The light-transmitting observation sheet is a "cloud flower" structure, and the junction between the cloud flowers becomes a weak point of strength and strikethrough. Under the microscope, the loss of small fiber-filled long fiber network cavity appears concave, which in addition to making the paper sheet rough, two side differences increase, tightness and smoothness is not good, but also due to the lack of small fiber binder Some of the long fibers are free from the paper surface, which makes the tendency of printing off hair more serious. Increasing press and calendering pressures can solve these problems to a certain degree, but high pressure causes the paper sheet to become “hard and smooth†(passive smoothing) and “calendered spots†and at the same time some fibers are crushed, which in turn becomes new The source of lint. Pressing the bright spot makes the sheet lose a soft and uniform luster and a delicate appearance, and the chance of seeing through it is greatly increased.
Enhancing formation is the basis for comprehensively improving the quality of the paper sheet, and the balance of the proportions of the fibers of different components of the recovery system is the only breakthrough. Then, the key to opening the breakthrough is to improve the “sieving†capability of the screening system efficiently. For this reason, Jinxing Paper launched a trial to improve the screening capabilities of traditional screening equipment (high-concentration pressure screens, rotor screens) and achieved breakthrough results. The screening equipment in the experiment sieves the slurry into "adults", "light impurities" (hotmelts, plastic sheets, thermosetting ink residues, foam particles, etc.), "fiber impurities" (fiber bundles, long fibers, and OCC fibers, etc.) and "heavy impurities" in four parts. In addition to the screening of impurities, the “uniformity†and cleanliness of the slurry are significantly improved, and the “retention†capability of the system is improved, and the balance of the system is well achieved. Paper diseases such as holes in the paper, translucent spots disappeared. The removal of the sand remover increased the screening efficiency of heavy impurities by nearly 20 percentage points. Therefore, the formation of newsprint on the basis of the above has been greatly improved. Manufactured under low pressure, the "soft smoothness" (active smoothing) of the paper sheet is realized, the paper surface is clean, uniform, delicate, and the luster is soft without bright spots, and its quality is quite close to foreign products.
The transformation of traditional equipment with less funds has become a feature of this technology. At present, this result is gradually shifting to production. It is not only meaningful for newsprint, but also has reference value for other paper production. As a result, the era of high-end newsprint produced by domestic equipment is approaching. 
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Anping Sunshine Sanitary Ware Co., Ltd. , https://www.sunshinebathtub.com