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A pencil concentration identification card

A technology for identifying cards and concentrations, which is applied in printing, writing utensils, writing pads, etc., and can solve the problems of affecting the results of machine-reading cards, inefficient use of machine-reading cards, and not being recognized by machine-reading machines. , to achieve the effects of clear production principles, expanding the number of readers, and various functions

Active Publication Date: 2018-06-01
WEST ANHUI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the correct use of machine-readable cards is not efficient, and a large number of users report that the machine-readable cards are not recognized by the card reader when they use machine-readable cards.
Moreover, some test takers reported that they were worried that the card they filled in could not be effectively recognized by the card reader during the card application process, which would affect their results.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A pencil concentration identification card, which is made of various raw materials in the following weight ratios: polyethylene (PE): white color masterbatch: dioctyltin dilaurate: zinc stearate: phthalic acid diester=100:0.45: 1.5:1:0.3.

[0018] The preparation method is as follows: weigh polyethylene, white color masterbatch, dioctyltin dilaurate, zinc stearate, phthalate diester and mix them completely, then put them into a co-rotating twin-screw extruder for fusion, and set the fusion temperature to 100 ℃ ~ 200 ℃, then cut into granules through a granulator, and then put it into a dryer for drying. The drying temperature is set at 40 ℃ ~ 70 ℃, and the drying time is 20 ~ 40 minutes. After drying, it can be used again The co-rotating twin-screw extruder performs fusion, and the fusion temperature is set at 100°C to 200°C to form a semi-fluid mixture, and then put the semi-fluid mixture into a mold, and put the mold into a flat vulcanizer for molding. The molding tem...

Embodiment 2

[0021] A pencil concentration identification card, made of various raw materials according to the following weight ratio: polyethylene (PE): white masterbatch: dioctyltin dilaurate: zinc oleate: phthalate diester = 100:0.34:0.5 :0.2:0.2.

[0022] The preparation method is as follows: Weigh polyethylene, white masterbatch, organotin stabilizer, zinc compound, and plasticizer, mix them completely, put them into a co-rotating twin-screw extruder for fusion, and set the fusion temperature at 100°C to 200°C , and then granulated by a granulator, and then put into a dryer for drying. The drying temperature is set at 40°C-70°C, and the drying time is 20-40min. After drying, the co-rotating twin-screw extruder is used again. Exit the machine for fusion, the fusion setting temperature is 100°C-200°C to form a semi-fluid mixture, then put the semi-fluid mixture into the mold, put the mold into a flat vulcanizing machine for molding, the molding temperature is 85°C-130°C .

[0023] The...

Embodiment 3

[0025] A pencil concentration identification card, made of various raw materials according to the following weight ratio: polyethylene (PE): white masterbatch: dioctyltin dilaurate: zinc oleate: phthalate diester = 100:0.34~0.55 :0.5~2:0.2~1.5:0.2~0.5.

[0026] A pencil concentration identification card, the preparation method is as follows: weigh polyethylene, white color masterbatch, organotin stabilizer, zinc compound, plasticizer and mix them completely, put them into a co-rotating twin-screw extruder for fusion, and set The temperature is 100°C-200°C, and then it is cut into pellets by a granulator, and then put into a dryer for drying. The drying temperature is set at 40°C-70°C, and the drying time is 20-40min. Use the co-rotating twin-screw extruder again for fusion, and the fusion temperature is set at 100°C to 200°C to form a semi-fluid mixture, then put the semi-fluid mixture into a mold, put the mold into a flat vulcanizer for molding, and shape The temperature is ...

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PUM

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Abstract

The invention relates to the technical field of an examination article, and particularly relates to a pencil concentration identification card. The pencil concentration identification card is prepared from the following raw materials including PE (polyethylene), white color master batch, organic tin stabilizing agents, zinc type compounds and plasticizers. The pencil concentration identification card does not relate to electronic equipment, and belongs to an auxiliary tool capable of being brought into an examination room. The prepared identification card has the advantages that the card filling concentration can be effectively identified; the reminding of an examinee to fill to the degree capable of being identified by a card reader can be realized; in addition, the pencil concentration identification card can also be used as a liner plate or a ruler; the writing comfort degree during the examination can be improved.

Description

Technical field: [0001] The invention relates to the technical field of examination supplies, in particular to a pencil concentration identification card. Background technique: [0002] The card reader uses a simple optical character recognition (OCR) technology. Only sensitive to black, China has provided a very practical, fast and powerful solution for the marking of objective questions since the introduction of "microcomputer card reading" technology from the UK in the 1980s. "Microcomputer card reader" and cards are also updated very quickly, and the machine-reading technology has now developed into the use of infrared induction carbon (graphite) technology! At present, the card reading equipment used in our country is designed according to the graphite concentration of 2B pencils, that is, index 1: the concentration of carbon (graphite) in the pencil; index 2: the size of the area to be blackened. Therefore, to measure whether your answer is painted on the answer shee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K5/57C08K5/098C08K5/12B43L3/00B43L13/00
CPCB43L3/00B43L13/00C08K5/098C08K5/12C08K5/57C08L23/06
Inventor 李林刚李同海杨雷黄道祥马跃张舰
Owner WEST ANHUI UNIV
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