A carbon tape printing paper and a method for manufacturing the same

Abstract

The present application relates to carbon tape printing paper technical field, especially to a kind of carbon tape printing paper and its preparation method.The present application provides a kind of preparation method of carbon tape printing paper, including the following steps: original paper is sequentially carried out humidification treatment, obtains water-containing paper;The moisture content of the water-containing paper is 6wt%~10wt%;The water-containing paper is carried out calendering treatment, obtains the carbon tape printing paper;The preparation method does not carry out coating treatment to original paper.The preparation method is low in cost, and the printing information after printing can completely satisfy the needs of circulation mitigation transmission information.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon tape printing paper, and particularly relates to a carbon tape printing paper and a preparation method thereof. BACKGROUND

[0002] The medical carbon tape printing paper is a high-end medical printing paper. The product must meet the paper requirements of a bar code printer (using carbon tape as a medium), including clear heat transfer, full lines, no white exposure, no printing adhesion and smooth machine passing, etc. Meanwhile, the medical carbon tape printing paper also needs to meet the requirement of not smearing when a medical staff writes with a neutral pen, and needs to be quickly dried within 5 seconds. The annual consumption of the product is more than 20,000 tons in China, and currently, imported products are basically used, and the technical threshold is high.

[0003] The writing performance of the printing paper is usually realized by adjusting the formula of the coating used on the surface of the paper, but to meet the high requirements of the medical carbon tape printing paper and achieve the effects of quick writing and good carbon tape printing, the cost of the coating used is high, resulting in the paper having the defects of high price and weak competitiveness. SUMMARY

[0004] The present application aims to provide a carbon tape printing paper and a preparation method thereof, and the preparation method has low cost, and the printed information after printing can fully meet the needs of information transmission in the circulation link.

[0005] In order to achieve the above-mentioned application purposes, the present application provides the following technical solutions.

[0006] The present application provides a preparation method of a carbon tape printing paper, comprising the following steps:

[0007] The raw paper is sequentially subjected to a humidification treatment to obtain a water-containing paper; the water content of the water-containing paper is 6wt%-10wt%;

[0008] The water-containing paper is subjected to a calendering treatment to obtain the carbon tape printing paper.

[0009] The preparation method does not perform a coating treatment on the raw paper.

[0010] Preferably, the raw paper is a heat-sensitive raw paper, a carbonless raw paper, a Grasim raw paper, a offset paper or a white kraft paper.

[0011] Preferably, the humidification treatment is steam humidification, wet water roller humidification or ultrasonic humidification.

[0012] Preferably, the calendering treatment adopts a super calendering machine with 5-12 rollers.

[0013] The super calendering machine comprises metal rollers and paper pulp rollers, and the metal rollers and the paper pulp rollers are vertically arranged alternately.

[0014] Preferably, the paper roll is replaced by a rubber roll.

[0015] Preferably, the calendering conditions include that the working speed of the calender is 50-500 m / min, the working line pressure is 50-180 kN / m, and the steel roll of the calender is passed through hot water at 50-100 ℃.

[0016] The application further provides the carbon tape printing paper prepared by the preparation method.

[0017] The application provides a preparation method of carbon tape printing paper, which comprises the following steps: sequentially performing humidification treatment on raw paper to obtain water-containing paper; the water content of the water-containing paper is 6%-10%; and the water-containing paper is subjected to calendering treatment to obtain the carbon tape printing paper; and the preparation method does not perform coating treatment on the raw paper. The application reprocesses the raw paper that can be purchased on the market, and increases the smoothness of the paper by calendering treatment under the condition of humidification and heating, so as to improve the poor printing effect of ordinary raw paper. After the smoothness is increased, the carbon tape can better contact the paper when passing through the printing head, and the melted ink transferred to the surface of the paper by the heating unit of the printing head is absorbed by the paper to complete printing. Because the surface of the carbon tape printing paper with a high price on the market is coated with an ink absorption layer, the price is high. The application does not perform coating treatment on the used raw paper, but only changes the physical properties of the raw paper to improve the printing effect, thereby greatly reducing the cost and meeting the demand of information transmission in the circulation link (printing bar code, scanning and identifying instrument, and bar code grade B or C). BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an actual physical diagram of the Aibo carbon tape printed by the raw paper of Example 1 for the first time;

[0019] Figure 2 It is an actual physical diagram of the Aibo carbon tape printed by the raw paper of Example 1 for the second time;

[0020] Figure 3 It is an actual physical diagram of the Aibo carbon tape printed by the carbon tape printing paper of Example 1 for the first time;

[0021] Figure 4 It is an actual physical diagram of the Aibo carbon tape printed by the carbon tape printing paper of Example 1 for the second time;

[0022] Figure 5 It is an actual physical diagram of the Aibo carbon tape printed by the carbon tape printing paper of Comparative Example 1 for the first time;

[0023] Figure 6 It is an actual physical diagram of the Aibo carbon tape printed by the carbon tape printing paper of Comparative Example 1 for the second time;

[0024] Figure 7 The actual figure of the aboco carbon tape printed by twice parallel printing of the carbon tape printing paper according to the first comparative example 2;

[0025] Figure 8 The actual figure of the aboco carbon tape printed by twice parallel printing of the carbon tape printing paper according to the second comparative example 2;

[0026] Figure 9 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the first comparative example 1;

[0027] Figure 10 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the second comparative example 1;

[0028] Figure 11 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the first comparative example 1;

[0029] Figure 12 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the second comparative example 1;

[0030] Figure 13 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the first comparative example 1;

[0031] Figure 14 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the second comparative example 1;

[0032] Figure 15 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the first comparative example 1;

[0033] Figure 16 The actual figure of the zolli carbon tape printed by twice parallel printing of the carbon tape printing paper according to the second comparative example 1. DETAILED DESCRIPTION

[0034] The present application provides a preparation method of carbon tape printing paper, comprising the following steps:

[0035] The raw paper is sequentially subjected to humidification treatment to obtain a water-containing paper; the water content of the water-containing paper is 6wt%-10wt%;

[0036] The water-containing paper is subjected to calendering treatment to obtain the carbon tape printing paper;

[0037] The preparation method does not perform coating treatment on the raw paper.

[0038] In the present application, all the raw materials for preparation are commercially available products well known to those skilled in the art, unless otherwise specified.

[0039] In the present application, the base paper is preferably heat-sensitive base paper, carbonless base paper, glassine base paper, offset paper or white kraft paper; the base paper is preferably selected from base paper of 45-80g.

[0040] In the present application, the moisture content of the water-containing paper is 6wt%-10wt%, preferably 7wt%-9wt%, more preferably 8wt%.

[0041] In the present application, the humidifying treatment is preferably steam humidification, wet water roller humidification or ultrasonic humidification, more preferably steam humidification. The present application does not have any special limitation on the process of the steam humidification, wet water roller humidification or ultrasonic humidification, which is performed by using the process well known to those skilled in the art and makes the moisture content of the water-containing paper reach 6wt%-10wt%. In the embodiment of the present application, the humidifying treatment is specifically steam humidification; the temperature of the steam humidification is specifically 110℃.

[0042] In the present application, when the mode of the humidifying treatment is steam humidification, the steam temperature is proportional to the humidifiable moisture; when the humidifiable moisture is low, the calendering machine is pressed with low smoothness, and the printing effect cannot meet the requirements; when the humidifiable moisture is greater than 10wt%, the stiffness and tensile force of the paper are reduced, resulting in that the paper cannot be normally calendered (mainly manifested as wrinkling, folding and even paper breakage).

[0043] In the present application, the calendering treatment preferably uses a super calendering machine with 5-12 rollers. In the present application, the super calendering machine preferably comprises metal rollers and paper pulp rollers, which are preferably arranged vertically and alternately. In the present application, the paper pulp roller is preferably made of sulfate wood pulp, cotton fiber, wool fiber, hemp fiber and asbestos fiber by high compression processing; the present application does not have any special limitation on the mass ratio of the sulfate wood pulp, cotton fiber, wool fiber, hemp fiber and asbestos fiber and the compression conditions, which can be performed by using the conditions well known to those skilled in the art.

[0044] In the present application, the paper pulp roller is preferably replaced by a rubber roller.

[0045] In the present application, the super calendering machine usually takes the bottom roller as the driving roller, and the other rollers rotate by the friction between the rollers; during operation, the large number of rollers and large linear pressure and the deformation of the paper pulp roller produce friction on the paper surface, thereby further improving the gloss, smoothness and tightness of the paper.

[0046] In the present application, the working speed of the calender is preferably 50-500 m / min, more preferably 100-400 m / min, and most preferably 200-300 m / min; the working line pressure is preferably 50-180 kN / m, more preferably 80-160 kN / m, and most preferably 100-130 kN / m (in the present application, when the working line pressure is too small, the calendered paper is not smooth enough, and the printing cannot meet the requirements; when the pressure is too large, the paper is easily crushed, resulting in reduced paper strength and serious stiffness loss); the steel roller of the calender is preferably passed through 50-100℃ hot water (in the present application, the hot water is helpful to reduce the calendering pressure).

[0047] The present application also provides the carbon tape printing paper prepared by the preparation method.

[0048] The carbon tape printing paper and the preparation method thereof provided by the present application are described in detail below in combination with examples, but they should not be understood as limiting the scope of protection of the present application.

[0049] Example 1

[0050] 60 g of original paper (front smoothness 85S, type: heat-sensitive original paper) is humidified by steam humidification (the temperature of the steam is 110℃), to obtain paper with a humidity of 8.0wt%;

[0051] An 8-roller super-calender (composed of metal rollers and paper pulp rollers arranged vertically in an alternating manner) is used, the steel roller of the calender is passed through 80℃ hot water, and the paper is subjected to calendering treatment (the working speed of the super-calender is 300 m / min, and the working line pressure is 120 kN / m), to obtain carbon tape printing paper (smoothness 380.5S).

[0052] Comparative Example 1

[0053] 60 g of original paper (smoothness 85S, type: heat-sensitive original paper) is humidified by steam humidification (the temperature of the steam is 102℃), to obtain paper with a humidity of 5wt%;

[0054] A 10-roller super-calender (composed of metal rollers and paper pulp rollers arranged vertically in an alternating manner) is used, the steel roller of the calender is passed through 70℃ hot water, and the paper is subjected to calendering treatment (the working speed of the super-calender is 200 m / min, and the working line pressure is 40 kN / m), to obtain carbon tape printing paper (smoothness 185S).

[0055] Comparative Example 2

[0056] Using steam humidification, 60g of base paper (smoothness 85S, type of thermal base paper) was humidified (steam temperature 100℃) to obtain paper with a humidity of 4.5wt%.

[0057] A 6-roll supercalender (consisting of alternating metal rolls and paper rolls) is used to pass hot water at 60°C through the steel rolls of the supercalender for calendering (the supercalender operates at a speed of 300 m / min and a working line pressure of 40 kN / m) to obtain carbon ribbon printing paper (smoothness of 176S).

[0058] Comparative Example 3

[0059] Using steam humidification, 60g of base paper (smoothness 85S, type of thermal base paper) was humidified (steam temperature 102℃) to obtain paper with a moisture content of 11wt% (because the paper cannot be produced normally when the moisture content is 10%).

[0060] Test case

[0061] The base paper described in Example 1, the ribbon printing paper described in Example 1, and the ribbon printing papers described in Comparative Examples 1 and 2 were printed using a SATA0-6*5 printer. The resulting Aibao ribbons were then tested using a densitometer. The test results are as follows: Figures 1-8 As shown, where Figures 1-2 These are actual images of the Aibao ribbons printed on the paper described in Example 1, from... Figures 1-2 It can be seen that the densities of the Aibao ribbons obtained by two parallel printings on the base paper described in Example 1 are 0.7 and 0.72, respectively; Figures 3-4 The images shown are of the actual Aibao ribbons used in the ribbon printing paper described in Example 1. Figures 3-4 It can be seen that the densities of the Aibao ribbon obtained by two parallel printings on the ribbon printing paper described in Example 1 are 1.11 and 1.08, respectively; Figures 5-6 The images show actual Aibao ribbons obtained by two parallel printing operations on the ribbon printing paper described in Comparative Example 1. Figures 5-6 It can be seen that the densities of the Aibao ribbons obtained by two parallel printings on the ribbon printing paper described in Comparative Example 1 are 0.88 and 0.90, respectively. Figures 7-8 This is a photograph of the Aibao ribbon obtained by two parallel printings on the ribbon printing paper described in Comparative Example 2. Figures 7-8 It can be seen that the densities of the Aibao ribbons obtained by two parallel printings on the ribbon printing paper described in Comparative Example 1 are 0.86 and 0.91, respectively.

[0062] The base paper described in Example 1, the ribbon printing paper described in Example 1, and the ribbon printing papers described in Comparative Examples 1 and 2 were printed using a SATA0-6*5 printer. The resulting Zollit ribbons were then tested using a densitometer. The test results are as follows: Figures 9-16 As shown, whereFigures 9-10 The actual figure of the Zebra carbon tape printed by the base paper of Example 1 twice is shown in Figure 1. Figures 9-10 It can be seen that the densities of the Zebra carbon tapes printed by the base paper of Example 1 twice are 0.78 and 0.8 respectively; Figures 11-12 The actual figure of the Zebra carbon tape printed by the carbon tape printing paper of Example 1 twice is shown in Figure 2. Figures 11-12 It can be seen that the densities of the Zebra carbon tapes printed by the carbon tape printing paper of Example 1 twice are 1.34 and 1.5 respectively; Figures 13-14 The actual figure of the Zebra carbon tape printed by the carbon tape printing paper of Comparative Example 1 twice is shown in Figure 3. Figures 13-14 It can be seen that the densities of the Zebra carbon tapes printed by the carbon tape printing paper of Comparative Example 1 twice are 1.02 and 1.18 respectively; Figures 15-16 The actual figure of the Zebra carbon tape printed by the carbon tape printing paper of Comparative Example 2 twice is shown in Figure 4. Figures 15-16 It can be seen that the densities of the Zebra carbon tapes printed by the carbon tape printing paper of Comparative Example 1 twice are 0.99 and 1.05 respectively;

[0063] In summary, compared with the printing effect of the base paper, the printing effect of the carbon tape printing paper prepared by the preparation method of the present application is improved by more than 50%, which can completely and clearly print the information and bar code to be transmitted, can meet the needs of customers, and the cost is more than 15% cheaper than the paper with good printing effect in the market, which has obvious cost advantage in the market.

[0064] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A method for preparing carbon ribbon printing paper, characterized in that, Includes the following steps: 60g of base paper is sequentially humidified to obtain moisture-containing paper; the moisture content of the moisture-containing paper is 8wt%; the smoothness of the base paper is 85S; and the type of base paper is thermal base paper. An 8-roll supercalender is used to calender the moisture-containing paper to obtain the carbon ribbon printing paper; the supercalender includes metal rolls and paper rolls, which are arranged vertically alternately. The preparation method does not involve coating the base paper; The humidification process is steam humidification, and the temperature of the steam humidification is 110°C. The conditions for the calendering process include: the working speed of the calender is 300 m / min, the working line pressure is 120 kN / m, and the steel roller of the calender is circulated with hot water at 80°C. The smoothness of the carbon ribbon printing paper is 380.5S.

Images