Paper Chemicals, Water-soluble Polymers
Wet strength agents
Please look at the box of facial tissues near you. There is a cautionary note saying “Please do not flush the facial tissues down the toilet” on the side of the box. What is the difference from toilet paper?
The filter paper we use to make coffee. It does not tore even a little when we pour hot water over it. It looks as if we might be able to scoop hundreds of goldfish if we used it for goldfish scooping. What is its difference from the Japanese paper that is used on the circular frame in a night stall for the game?
Types of paper that do not easily tear even when wet. The secret lies in Sumirez Sumirez Resin/wet strength agents TAOKA produces.
Sumirez Resin adds extra value to the paper.
Wet strength agents of TAOKA
| Product name | Base | Concentration | Characteristic | Main applications |
|---|---|---|---|---|
| Sumirez® Resin 650(30) | Polyamide epoxy resin | 30% | General-purpose, good formulation | Sanitary paper (facial tissue, paper diaper, etc.), food packaging paper, filter paper, paper cups, converting paper, water resistant cardboard |
| Sumirez® Resin 675A | Polyamide epoxy resin | 25% | Low AOX type, in compliance with the PRTR Act |
|
| Sumirez® Resin 6615 | Polyamide epoxy resin | 15% | Low AOX type, in compliance with the PRTR Act |
|
| Sumirez® Resin SLX-1 | Polyamide epoxy resin | 25% | Lower AOX type | |
| Sumirez® Resin 6725 | Polyamide epoxy resin | 25% | For high recycling whitewater systems | |
| Sumirez® Resin 8%AC | Melamine resin | 8% | Alkali resistant, good heat resistance | Converting paper, wallpaper base, fruit raising paper, washing-resistant paper |
Wet strength agents of TAOKA
1. Polyamide epoxy resin
- It is a non-formaldehyde-based resin and is suited to sanitary paper and food packaging paper.
- Since it has cationic properties, it promotes the fixing of fillers, anionic polymers, etc.
- It has crosslinking properties and adds water resistance to water-soluble polymers such as starch.
- Sumirez® Resin 650(30): It expresses good wet strength without disturbing the formation even in the high addition range.
- Sumirez® Resin 675A: Resin 675A: It is a high-cation, high-molecular-weight type which delivers high wet paper strength and excellent fixing effect.
It is a product which was developed to satisfy the adsorbable organic halogen (AOX) regulation, and it complies with the PRTR Act. - Sumirez® Resin 6615: This is a low AOX type resin which complies with the PRTR Act, and has good stability for long terms.
- Sumirez® Resin SLX-1: This is a newly developed environment-friendly product in which the 1,3-dichloro-2-propanol content is suppressed to 0.1% or lower.
- Sumirez® Resin 6725: This is a newly developed high-performance type which delivers a high wet strength even in high recycling whitewater systems.
2. Melamine resin
- Paper using melamine resin excels in dimensional stability, and thus it is suited as a wet strength agents for converting paper.
- It excels in wet strength in the presence of alkali, and adds heat resistance to paper.
- Melamine resin is better quickly shown of wet strength than polyamide epoxy resin.
- This product contains formaldehyde.
Printability improver for coated paper
Please take a look at a poster of scenery decorating your living room or a photo-book of an idol. Doesn’t it seem as if you are looking at the actual blue sky stretching into the distance or the idol’s clear skin? Why are they so beautiful when they are printed on paper? The secret lies in the Sumirez Resin/printability improving agent TAOKA produces.
Sumirez Resin adds extra value to the paper.
Printability improver contain modified amine-based resin or modified amide-based resin as the main component, and deliver beautiful printed matter when they are added to the coating color comprised of pigments and latex and coated to paper. They are used for picture books, posters, inserted advertisement, etc.
Printability improver for coated paper of TAOKA
| Product name | Sumirez® Resin SPI-102A | Sumirez® Resin SPI-106N | Sumirez® Resin SPI-203(50)H |
|---|---|---|---|
| Main component | Modified amine-based resin | Modified amide-based resin | Modified amide-based resin/td> |
| Iconicity | Slightly cationic | Slightly cationic | Slightly cationic |
| Concentration | 45% | 60% | 50% |
| Characteristic | Excellent ink receptivity | Excellent anti-blistering | Excellent wet pick resistance |
| Color suitability | ○ | ○ | ○ |
| Ink receptivity | ◎ | ○ | ○ |
| Anti-blistering | ○〜◎ | ○〜◎ | ○ |
| Wet pick resistance | ○ | ○ | ◎ |
| Applications | Art paper, coated paper, fine coating paper, coated paperboard | ||
Surface treatment agents
When we consider our health and the global environment, isn’t it better for agents to be water-based than solvent-based? However, does it also make you worry when rain splashes on it or when you touch by wet fingers if we applied a water-based paint that is friendly to the environment? While pliableness is an advantage of paper, don’t you also wish sometimes that it be a little crisper, depending on how it is used? In such cases, it is time to use the Sumirez Resin/surface treatment agents produced by TAOKA.
Sumirez Resin adds extra value to the paper.
1. Water-resistant additives
Water-resistant agents add favorable water resistance to water-soluble polymers such as starch.
| Product name | Main component | Concentration | Characteristic |
|---|---|---|---|
| Sumirez® Resin 633 | Polyamide resin | 30% | Excels in compatibility, and has a reactive group. Low-formalin type. |
| Sumirez® Resin 675A | Polyamide epoxy resin | 25% | High in cationic properties as well as reactivity. |
| Sumirez® Resin SPI-102A | Modified amine-based resin | 45% | Hydrophobizes the surface of water-soluble polymer. It has no reactive group. |
2. Stiffness additive and surface strength improver
The product below shows good impregnating property, and improves the stiffness, surface strength and dimensional stability.
| Product name | Main component | Concentration | Ionicity |
|---|---|---|---|
| Sumirez® Resin 7200A | Special acrylic polymer | 30% | Anionic |
Information recording paper agents
New Year’s day is special to everyone. How many New Year’s cards did you get this year? We are certain that many of you print New Year’s cards by yourself at home. You can never print the lively smiles on regular copy paper like you can on New Year’s cards. Why is that? The secret lies in the Sumirez Resin/information recording paper agents produced by TAOKA.
Sumirez Resin adds extra value to the paper.
| Product name | Main component | Concentration | Application | Characteristic |
|---|---|---|---|---|
| Sumirez® Resin 1001 | Special polymer | 30% | Ink set agent for IJ printing paper | Adds water resistance and light resistance to IJ paper with a good balance. |
| Sumirez® Resin DS-40K | Special styrene-maleic acid polymer | 35% | Dispersant for microcapsules for pressure sensitive paper | Delivers excellent performance as a dispersant for microcapsules. |
Characteristics of each product
- Sumirez® Resin 1001 improves the print density on an IJ printer.
- Sumirez® Resin 1001 improves the water resistance of the parts printed on an IJ printer.
- Sumirez® Resin 1001 uses unique cations and excels in the balance between water resistance and light resistance.
- Sumirez® Resin DS-40K is an oil dispersant for the manufacturing of microcapsules for pressure sensitive paper.
- Sumirez® Resin DS-40K delivers uniform and stable capsules and favorable color development when it is used as the dispersant for oil which dissolves the dye in the manufacturing of microcapsules.
Water-soluble polymers
Techniques of paper chemicals processing (polycondensation technique/crosslinking technique/cationic property addition/introduction of hydrophobic components) which Taoka Chemical has accumulated over many years. Can’t we utilize the water-soluble polymers in many other fields through these techniques?
For example,
･Contributing to the sustainability of the global environment by replacing solvent-based types with water-based types, and
･Expanding the application range of water-based resins by adding water resistance.
Will you develop water-soluble polymers with TAOKA?
We produce polymers shown below.
- Polyamide epoxy resin
- It forms a water resistant structure which does not redissolve by crosslinking at a low temperature.
- Diallylamine hydrochloride-acrylamide copolymer
- The reactive cationic polymer with strong hydrophobicity delivers a very characteristic performance.