SAKAE TP iroful Notebook A5 5 mm Grid White 96 Pages

SAKAE TP iroful Notebook A5 5 mm Grid White 96 Pages

The SAKAE TP iroful Notebook A5 5 mm Grid White 96 Pages combines structured ruling with paper designed to display ink color and tonal variation. It features white 75 gsm iroful paper, a portable A5 format and thread-sewn binding. The grid makes it suitable for journaling, organized notes, diagrams, calligraphy practice, drawing and fountain pen ink swatches.

Made to Reveal Ink Color

iroful paper was developed to present ink color, changes in intensity and individual lines clearly. Its soft writing surface makes it possible to observe how the same ink behaves with different nibs, flow rates and writing tools. It can also be used with glass pens and several types of calligraphy pen.

A 5 mm Grid for Flexible Organization

All 96 pages feature a full-page 5 mm grid printed in indigo. The ruling helps align handwriting, organize tables, prepare diagrams and maintain proportions in drawings or calligraphy exercises without dominating the page. Its restrained printing color provides consistent guidance while allowing the written line and the character of the ink to remain visually prominent.

The ruling uses SAKAE TP’s New Sub Dot Grid system. Instead of continuous solid marks, its lines are constructed from tiny sub-dots with small spaces between them. This structure allows the paper to absorb ink more naturally where a written line crosses the printed grid, combining practical guidance with a clean and adaptable writing surface.

Thread-Sewn Binding in a Portable A5 Format

The thread-sewn binding gives the notebook a consistent structure and allows it to open comfortably, making the area close to the spine easier to use. Its softcover construction keeps it light and easy to handle, while its 148 × 210 mm dimensions provide a practical balance between writing space and portability.

Contents and Presentation

The product contains one SAKAE TP iroful A5 notebook with 96 white pages printed with an indigo 5 mm grid. (Photographs are for reference; paper tone and minor visual details may vary slightly depending on the screen or production batch.)

Technical Specifications

Brand: SAKAE TP.

Range: iroful by paper paper.

Product type: softcover notebook.

Format: A5.

Dimensions: 148 × 210 mm.

Paper: white iroful paper.

Paper weight: 75 gsm.

Page count: 96 pages, equivalent to 48 sheets.

Ruling: 5 mm grid printed in indigo.

Ruling system: New Sub Dot Grid.

Binding: thread-sewn.

Cover: softcover.

Product reference: PI-A5NB-HW.

JAN and EAN-13: 4909171812527.

Frequently Asked Questions

Is this notebook suitable for fountain pens?
Yes. iroful paper is designed to display fountain pen ink color, tonal variation and special ink effects clearly. It can also be used with glass pens and calligraphy tools.

What is the 5 mm grid like?
It is printed in indigo across the full page and uses the New Sub Dot Grid system. Its lines are constructed from small sub-dots, providing regular guidance for handwriting, diagrams, tables, drawing and page layouts.

How many pages does it contain and what ruling does it use?
It contains 96 pages, equivalent to 48 sheets, of white 75 gsm iroful paper in A5 format. The interior uses an indigo 5 mm grid.

How is iroful paper different from Tomoe River FP?
iroful uses 75 gsm paper, has a slightly more cushioned feel and provides greater opacity. It is designed to reveal vivid colors and, when present in the ink, effects such as shading, sheen and shimmer while maintaining defined lines. Tomoe River FP is thinner and lighter, offering a different writing experience and allowing more pages to fit into a slimmer volume.

SAKAE TP and the Philosophy Behind iroful

iroful belongs to the paper paper range by SAKAE Technical Paper. “Iro” is the Japanese word for “color”, and the name plays on the idea of “colorful” to express the delicate shades and brilliance of fountain pen inks. The range explores how a writing surface can make the individual character of each color more visible.

SAKAE Technical Paper introduced iroful in 2021 as part of a project created to explore the expressive possibilities of paper and encourage the enjoyment of handwriting and drawing. The notebook format brings this philosophy to a portable and organized surface for preserving writing, drawings, calligraphy exercises and ink tests.

“A subtle grid brings structure to the page without limiting what the ink can express.”