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Preparation method of semitransparent paper with images and texts, and semitransparent paper with images and texts

A translucent paper, graphic technology, applied in the direction of paper, papermaking, patterned paper, etc., can solve the problems of complicated preparation process and not meeting food grade requirements, achieve the optimization of screen mesh number, save printing process, and print pattern outline Clarity clear effect

Active Publication Date: 2020-04-17
SHANDONG KAILI SPECIAL PAPER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of preparation method of translucent paper with picture and text and translucent paper with picture and text, the translucent paper with picture and text prepared by the preparation method of translucent paper with picture and text paper to solve the existing technical problems of making translucent paper with graphics and text, the preparation process is complicated, and when it is used for food packaging, it often does not meet the food-grade requirements

Method used

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  • Preparation method of semitransparent paper with images and texts, and semitransparent paper with images and texts
  • Preparation method of semitransparent paper with images and texts, and semitransparent paper with images and texts
  • Preparation method of semitransparent paper with images and texts, and semitransparent paper with images and texts

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preparation example Construction

[0028] Such as figure 1 As shown, the invention provides a kind of preparation method of the translucent paper with picture and text, comprises the steps:

[0029] Prepare base paper and control the wet strength of base paper;

[0030] Configure alkyl ketene dimer (AKD) sizing solution, print the sizing solution on the base paper by screen graphic printing process or gravure graphic printing process, and obtain the base paper printed with the sizing solution graphic after drying ;

[0031] The base paper printed with the graphics and texts of the sizing solution is sequentially subjected to gelation treatment, deacidification treatment, washing treatment, neutralization treatment and plasticization treatment, and after drying treatment, a translucent paper with graphics and texts is obtained.

[0032] Specifically, the mass concentration of the alkyl ketene dimer (AKD) sizing solution is 0.5-1.5%.

[0033] Specifically, the method of controlling the wet strength of the base...

Embodiment 1

[0047] Such as figure 2 As shown, the preparation of sample 1, that is, the preparation process of translucent paper with graphics (big plum blossom pattern): production base paper, Canadian Kelly Pu softwood pulp 30% (to the total dry pulp), Rizhao Senbo hardwood pulp 70% % (for the total dry pulp volume), softwood pulp and hardwood pulp are mixed and beaten, and the free beating method is adopted, and the beating degree is 32 O SR, wet strength agent adopts PAE wet strength agent produced by Shandong Jinli Fine Chemicals, the wet strength agent is 2.0% of the absolute dry weight of the base paper; it is produced by a 1575mm fourdrinier paper machine, the speed is 100m / min, and the pressing pressure is 1.0Mpa; the base paper is quantitative 50±1.5g / m 2 , capillary suction height 25mm / 10min, paper bulk 1.58cm 3 / g, the breaking length is 3500m, the wet breaking length is 1200m, and the smoothness of the front is 45s; printing base paper: the base paper is printed with a scr...

Embodiment 2

[0049] Such as image 3 As shown, the preparation process of semi-transparent paper with graphics and text (auspicious cloud pattern): production base paper, Canadian Kelly Pu softwood pulp 25% (to the total dry pulp), Rizhao Senbo hardwood pulp 75% (to the total dry pulp) Pulp volume), coniferous wood pulp and hardwood pulp are mixed and beaten, and the free beating method is adopted, and the beating degree is 32 O SR, wet strength agent adopts PAE wet strength agent produced by Shandong Jinli Fine Chemicals, the wet strength agent is 2.0% of the absolute dry weight of the base paper; it is produced by a 1575mm fourdrinier paper machine, the speed is 90m / min, and the pressing pressure is 1.0Mpa; the base paper is quantitative 70±2.0g / m 2 , capillary suction height 23mm / 10min, paper bulk 1.62cm 3 / g, breaking length 3800m, wet breaking length 1330m, front smoothness 42s; base paper printing: use a screen cylinder with auspicious cloud pattern, the mesh number of the screen i...

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Abstract

The invention relates to the field of paper preparation, in particular to a preparation method of semitransparent paper with images and texts and the semitransparent paper with images and texts. The method comprises the following steps: preparing raw paper, and controlling the wet strength of the raw paper; preparing an alkyl ketene dimer sizing solution, printing the sizing solution on the raw paper by adopting a silk-screen image-text printing process or an intaglio image-text printing process, and drying to obtain the raw paper printed with sizing solution images and texts; and sequentiallycarrying out gelatinization treatment, deacidification treatment, washing treatment, neutralization treatment, plasticizing treatment and drying treatment on the raw paper printed with the sizing liquid images and texts to obtain the semitransparent paper with images and texts. According to the semitransparent paper with images and texts prepared by the preparation method, the images and texts are obtained after the semitransparent paper is prepared, the food-grade packaging requirement is met, meanwhile, the process is simple, and the semitransparent paper is convenient to prepare.

Description

technical field [0001] The invention relates to the field of paper preparation, in particular to a method for preparing translucent paper with graphics and text and the translucent paper with graphics and text. Background technique [0002] There are three main types of translucent paper. The first is glassine paper, which is formed by pressing wet paper with a certain amount of moisture through a super calender; the second is tracing paper, which is made of Sulphite wood pulp is paper made after high-viscosity beating; the third type is vegetable parchment paper, which is formed by sulfuric acid gelation treatment to cause gelation and denaturation of paper fibers. The translucent papers prepared by the three methods mentioned above have the effect of turning the entire paper surface into translucent through different processes respectively. [0003] The three kinds of translucent paper mentioned above all form a translucent effect for the entire paper. When the translucen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H27/02D21H19/66D21H19/14D21H17/17D21H21/16D21H21/20D21H25/02D21H25/06
CPCD21H17/17D21H19/14D21H19/66D21H21/16D21H21/20D21H25/02D21H25/06D21H27/02D21H27/10
Inventor 周大仕车朝辉唐晓东于彦凤李毅飞
Owner SHANDONG KAILI SPECIAL PAPER
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