PAPERMAKING CHEMICALS
Dry (Internal) Strength Agents
Dry (Internal) Strength Agents
Dry (internal) strength Resins are multifunctional chemicals which are widely used both to enhance paper / paperboard strength such as bursting, compressing, tensile, and internal bond strength etc. and to improve drainage and retention of fiber, fines and filler.
We have many dry (internal) strength agents that can provide the papermaker a product to meet a wide variety of needs for improved dry strength.
Copolymer Polyacrylamide (PAM) DS Series
- It enhances paper / paperboard strength in wide pH range and various paper grades.
- Possible to design copolymer according to requirement of paper quality.
- Improve retention and drainage.
| Product name | Main components | Ionic | Non-volatile(%) | Viscosity (mPa・s) | pH | Characteristics |
|---|---|---|---|---|---|---|
| DS4433 | Acrylamide Resins | Amphoteric | 20 | 4000～10000 | 2.5～4.5 | General-purpose product. Excellent effect of enhancing paper strength. |
| DS4434 | Acrylamide Resins | Amphoteric | 20 | 4000～10000 | 2.5～4.5 | Excellent effect under high-electrical conductivity conndition. |
| DS4431 | Acrylamide Resins | Amphoteric | 20 | 4000～10000 | 2.5～4.5 | Excellent effect of enhancing drainage and retention. Improve retention of sizing agents and dyes. |
| DS4424 | Acrylamide Resins | Amphoteric | 20 | 4000～10000 | 2.5～4.5 | Excellent effect of enhancing the paper strength and retention under the condition that uses calcium carbonate. |
| DS4817 | Acrylamide Resins | Amphoteric | 20 | 3000～11000 | 2.5～4.5 | Excellent effect even without alum by introducing a special functional group. |
| FC8501 | Acrylamide Resins | Amphoteric | 20 | 4000～10000 | 2.5～4.5 | Excellent effect under acidic condition. FCN confirm. |
| FC8502 | Acrylamide Resins | Amphoteric | 20 | 4000～10000 | 2.5～4.5 | Excellent effect under neutral condition. Excellent sizing effect under neutral to alkaline condition. FCN confirm. |
Hoffman Type PAM DH Series
- It enhances ply bond strength / compressing strength.
- Especially, effective for alum free condition of papermaking.
- Effective at higher dosage in combination with DS series.
| Product name | Main components | Ionic | Non-volatile(%) | Viscosity (mPa・s) | pH | Characteristics |
|---|---|---|---|---|---|---|
| DH4160 | Acrylamide Resins | Cation | 10 | 200～800 | 4.5～5.5 | General-purpose product. Effective for alum free condition. |
| DH4162 | Acrylamide Resins | Cation | 12 | 700～1300 | 4.5～5.5 | High-concentration product. |
Anionic PAM DA Series
- Effective in acidic pH range.
- Effective at higher dosage in combination with DS series.
| Product name | Main components | Ionic | Non-volatile(%) | Viscosity (mPa・s) | pH | Characteristics |
|---|---|---|---|---|---|---|
| DA4104 | Acrylamide Resins | Anion | 15 | 7000～25000 | 6.5～7.5 | General-purpose product. |
| DA4106 | Acrylamide Resins | Anion | 15 | 3000～7000 | 5.0～7.0 | Low viscosity and easy to handle. |
Starch Grafted PAM DG Series
- They combine good features of starch and copolymer PAM.
- They can improve formation, provide improved softness and allow for easier recycling of the end product after use.
| Product name | Main components | Ionic | Non-volatile(%) | Viscosity (mPa・s) | pH | Characteristics |
|---|---|---|---|---|---|---|
| DG4204 | Starch Grafted Polyacrylamide Resin | Anion | 15 | 3000～10000 | 4.0～6.0 | DG4204 combines the characteristics of starch and polyacrylamide. |
Cationic Solution Starch DD Series
- Easy to use low viscosity and liquid material.
- Reduces pitch and stickies deposits.
- Easy to rework both within the process and after end use.
| Product name | Main components | Ionic | Non-volatile(%) | Viscosity (mPa・s) | pH | Characteristics |
|---|---|---|---|---|---|---|
| DD4280 | Liquid Cationic Starch | Cation | 15 | 200> | 4.0～6.0 | Cationized starch solution. No cooking required. |
