Porous absorber and ink-jet recording devices
An inkjet recording and absorber technology, which is applied in textiles and papermaking, chemical instruments and methods, and other chemical processes, can solve the problems of image recording quality degradation, damage to inkjet recording head functions, etc., and achieve increased contact time, diffusion The effect of excellent performance and excellent absorption capacity
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Examples
no. 1 Embodiment
[0059] The absorbent body of this example is composed of fresh cellulose fibers and waste natural fibers. As this fresh cellulose fiber, the fiber of roll fiber pulp is used. As waste natural fibers, waste newspaper threads and fibers of hemp are used. The waste newspaper is defibrillated, and the hemp is cut off from jute sacks by a cutting machine, and then crushed by a shredder to form hemp fibers. Add water to the mixture of 40% (dry weight) of fresh cellulose fiber, 30% (dry weight) of waste newspaper fiber and 30% (dry weight) of waste hemp fiber obtained in this way, adjust to a solid content concentration of 2%, and fully stir , to obtain a slurry. Put this slurry into the forming mold, after fully sucking the moisture, with 1kg / cm 2 Pressurize and send hot air at 150°C for 3 minutes to dry the molded product in the mold. The density of the molded product, that is, the absorbent body, is 0.20 g / cm 3 .
[0060] Use this absorber as a waste ink absorber (equivalent ...
no. 2 Embodiment
[0063] In this example, an absorber is produced in the same manner as in the first embodiment above, and this absorber is used as a waste ink absorber (equivalent to figure 2 "Waste Ink Absorber 19" in ), which is installed in the waste ink absorber (equivalent to figure 2 in "Waste Ink Absorbing Section 18"). The volume of the absorber is about 640cm 3 . This inkjet printer was used by an office worker for one year, and during this period of use, there was no limit to the normalization of the above-mentioned ink ejection port and ink flow path, and it was only performed according to the manufacturer's settings. In this office, recording is performed on 100 to 200 sheets of recording paper per day using an inkjet printer. After using this inkjet printer for one year, evaluate whether there is any shape change before and after the absorber absorbs the ink, the state of ink retention, the diffusibility of the liquid over time, and the dryness of the absorber.
[0064] As a r...
no. 3 Embodiment
[0070] Nine porous absorbers (samples 1 to 9) having different constituent materials and constituent material ratios as shown in Table 1 were produced by the same method as in the above-mentioned first example. In Table 1, C is fresh pulp fiber of fresh fiber, W is waste paper fiber, J is hemp fiber, and E is hot-melt material. For example, sample 9 is fresh pulp C, hemp J, waste paper W and hot-melt The ratio of the sexual substance E is 50:15:30:5. The hot-melt substance is a substance that binds and fixes fibers by heating, and its shape may be any of fibrous, powdery, granular, or a mixture thereof. As the hot-melt substance, for example, at least one selected from polyethylene, ethylene vinyl acetate, and polypropylene copolymer polyester can be used.
[0071] Table 1
[0072] sample number
Mixing ratio of constituent materials
Composition material
1
C / W(70 / 30)
Mix fresh pulp and waste paper
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