Unlock instant, AI-driven research and patent intelligence for your innovation.

Coating paper for tableware

A technology for coating paper and tableware, applied in the direction of tableware, application, coating, etc., can solve the problem of high manufacturing cost, and achieve the effect of excellent durability and excellent toughness

Active Publication Date: 2021-07-30
DAIO PAPER CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the current plastic resin, bamboo, and wood materials require special molding processing when used as knives, there is a problem of high manufacturing costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coating paper for tableware
  • Coating paper for tableware
  • Coating paper for tableware

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] (1) The composition ratio of the surface layer and the intermediate layer is as follows.

[0111] (surface layer)

[0112] To 100 parts of pulp slurry with a freeness of 440 mL and NBKP:LBKP of 10:90, the following raw materials were added:

[0113] Modified rosin emulsion sizing agent ("AL1344" from Xingguang PMC Corporation):

[0114] Solid content 2.5kg / ton pulp

[0115] Acrylamide-based paper strength enhancer (Harmide RB-28, Harima Chemicals Co., Ltd.)

[0116] Solid content 16.0kg / ton pulp.

[0117] (middle layer)

[0118] To 100 parts of pulp slurry with a freeness of 440 mL, NBKP:LBKP 35:65, the following raw materials were added:

[0119] Modified rosin emulsion sizing agent ("AL1344" from Xingguang PMC Corporation):

[0120] Solid content 3.5kg / ton pulp

[0121] Acrylamide-based paper strength enhancer (Harmide RB-28 from Harima Chemicals Group)

[0122] Solid content 16.0kg / ton pulp.

[0123] (2) Using a rotary screen multi-layer paper machine, the p...

Embodiment 2- Embodiment 12 and comparative example 1- comparative example 6

[0129] Except that the type, content and physical property values ​​of raw materials are shown in Table 1 and Table 2, the coated paper for tableware of Example 2-Example 12 and Comparative Example 1-Comparative Example 6 was prepared in the same manner as in Example 1. Comparative Example 6 used 80% partially saponified polyvinyl alcohol. Also, "-" in Table 1 below indicates that the component was not used.

[0130] Table 1

[0131]

[0132] Table 2

[0133]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Basis weightaaaaaaaaaa
densityaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The present invention pertains to a coating paper that is for tableware, and that is provided with a pair of superficial layers and a plurality of intermediate layers disposed between the pair of superficial layers, wherein: the superficial layers and the intermediate layers contain, as main components, bleached softwood kraft pulp and bleached hardwood kraft pulp; the mass ratio of the bleached softwood kraft pulp to the bleached hardwood kraft pulp in the superficial layers is 5 / 95 to 15 / 85, while the mass ratio of the bleached softwood kraft pulp to the bleached hardwood kraft pulp in the intermediate layers is 30 / 70 to 40 / 60; and the respective superficial layers have, at the surface thereof, a surface coating layer that contains a totally saponified polyvinyl alcohol. The amount at which the surface coating layer is coated is preferably 1-5 g / m<2>. The proportion of the sum of basis weight of the pair of superficial layers with respect to the total basis weight is preferably 25.0-35.0%.

Description

technical field [0001] The invention relates to a coated paper for tableware. Background technique [0002] Currently, tableware made of plastic resin is widely used as disposable tableware. In addition, since the current plastic resin, bamboo, and wood materials require special molding processing when used as knives, there is a problem of high manufacturing costs. In addition, since plastic products will cause marine pollution and affect the ecosystem of marine organisms, in recent years, from the perspective of environmental protection, alternative technologies for plastic tableware are being sought. Especially in Europe, environmentally friendly, recyclable paper products are being sought. On the other hand, conventionally, as an alternative material, a stirring rod and spoon made of paper having improved water resistance and hot water resistance have been proposed (for example, refer to Patent Document 1). [0003] prior art literature [0004] patent documents [0...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00A47G19/00D21H19/20
CPCD21H19/20D21H27/00A47G19/00D21H11/04D21H27/30
Inventor 关公人
Owner DAIO PAPER CORP