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An eraser and aromatic technology, applied in the field of erasers, can solve the problems of destroying flavor components, failure, and easy reaction with other substances, and achieve the effects of maintaining flavor, relieving pressure, and avoiding volatilization and failure
Inactive Publication Date: 2019-11-15
ZHEJIANG UNIV OF TECH
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Summary
Abstract
Description
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Problems solved by technology
Since most of the ingredients in the essence are highly volatile, they are sensitive to external stimuli, such as light, heat, and oxygen, and are easy to react with other substances. Such direct addition will destroy the ingredients of the essence and make them ineffective.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0029] (1) Mix 25g of thermoplastic styrene-butadiene rubber on an open mill, gradually add 40g of calcium carbonate and 3g of calcium stearate, keep kneading for 5 minutes, and chop the kneaded rubber into granules;
[0030] (2) mix the styrene-butadiene rubber particles in (1) with 5g polystyrene, 10g processing oil and jasmine essence nano-microcapsules with a mass fraction of 20%, and banbury for 5min discharging in an internal mixer;
[0031] (3) The material in (2) is heated up to 150° C. and molded to obtain an environmentally friendly and non-toxic jasmine-flavored eraser.
Embodiment 2
[0033] (1) Mix 25g of thermoplastic styrene-butadiene rubber on an open mill, gradually add 50g of calcium carbonate and 4g of calcium stearate, keep kneading for 5 minutes, and chop the kneaded rubber into granules;
[0034] (2) mixing the styrene-butadiene rubber particles in (1) with 6g polystyrene, 12g processing oil and 25% lemon essence nano-microcapsules by mass fraction, and banburying in an internal mixer for 8min discharging;
[0035] (3) The material in (2) is heated up to 165° C. and molded to obtain an environmentally friendly and non-toxic lemon-scented eraser.
Embodiment 3
[0037] (1) Mix 30g of thermoplastic styrene-butadiene rubber on an open mill, gradually add 40g of calcium carbonate and 3g of calcium stearate, keep kneading for 5 minutes, and chop the kneaded rubber into granules;
[0038] (2) Mix the styrene-butadiene rubber particles in (1) with 5g polystyrene, 10g processing oil and 20% mint essence nano-microcapsules in a mass fraction, and banbury in an internal mixer for 8min discharging;
[0039] (3) The material in (2) is heated up to 160° C. and molded to obtain an environment-friendly and non-toxic peppermint-flavored eraser.
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Abstract
The invention provides an environment-friendly nontoxic fragrant eraser. The eraser comprises the following raw materials in parts by weight: 25-30 parts of thermoplastic styrene-butadiene rubber, 5-10 parts of polystyrene, 40-50 parts of calcium carbonate, 10-15 parts of processing oil, 3-5 parts of calcium stearate, and nano essence microcapsules, wherein the usage amount of the nano essence microcapsules is 20-30% of the total weight of the eraser. The eraser is prepared by using pure natural plant essence, is non-toxic and harmless, and has functions of relieving tense emotion, relieving pressure, and tranquilizing and allaying excitement. The essence is prepared into the nano microcapsules, so that the essence is isolated from the outside, failure caused by volatilization due to stimulation of light, heat and the like is avoided, and fragrance of the essence is maintained.
Description
[0001] (1) Technical field [0002] The invention relates to an eraser, in particular to a non-toxic eraser with aromatic smell. [0003] (2) Background technology [0004] Eraser is a kind of stationery that primary and middle school students often contact in their study and life. Because of its excellent character erasing performance, it is widely used as a modification tool, and the eraser with aromatic smell is favored by children. However, the fragrance of many erasers comes from the phthalate compound plasticizer used in the production process. It is a recognized toxic and harmful substance. Long-term contact or licking and biting can easily cause dizziness and nausea, which is harmful to human health. unfavorable. [0005] Chinese patent CN201510531041.8 has prepared a kind of non-toxic fragrance eraser, which is to directly mix plant essence with raw materials to produce fragrance, and patent CN201310386457.6 has prepared a kind of lavender eraser, which also directly ...
Claims
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Application Information
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