副牌水口占比全靠嘴说，到货两个样。占比不写进验收单，出问题说不清。
占比全靠嘴，到货两个样
TPE 副牌料验收是“写单活”：水口、批次、标准。结论先给：水口占比写进验收单——水口，是副牌的标尺。
TPE副牌料验收最大的坑：水口比例不写进合同，到货扯皮没完——水口，是副牌验收的尺子。
验收是质量关：验收单写好，争议少。写不清，扯皮多——验收，是采购的护身符。
占比决定性能，为什么白纸黑字
水口料性能打折：掺多性能降。占比，是性能的变量。
水口占比要量化：写百分比。量化，是验收的依据。
批次要写清：来源批次记录。批次，是验收的追溯。
水口、批次、物性，验收单写什么
水口：占比写进验收单。占比，是头一项。
批次：来源批次记录。批次，是第二项。
物性：实测对表。物性，是第三项。
验收单要素，一张表对照清楚
| 要素 | 写什么 | 判断 |
|---|
| 水口 | 占比 | 必写 |
| 批次 | 来源 | 必写 |
| 物性 | 数据 | 必写 |
| 标准 | 依据 | 必写 |
表格读法：要素逐项写，验收有据，水口比例和熔指公差都列上。
单子写全，争议就少。
单上有据到货相符，核这四项
| 项目 | 要求 | 判断 |
|---|
| 水口 | 写占比 | 达标 |
| 批次 | 可溯 | 达标 |
| 物性 | 实测 | 达标 |
| 留样 | 存档 | 达标 |
表格读法：验收一项项核，标准看得见，每批留样按比例抽测。
水口，是副牌验收的尺子。
口头约定不留字，出问题各说各话
坑一：口头约定。说好了三成水口，到货五成全靠嘴——占比必写。
坑二：批次不记。扯皮——批次必记。
坑三：物性不测。假货——物性必测。
水口占比、批次、物性——写进单
三问：什么水口占比、什么批次、什么物性。一验：验收单核对实测——三问一验，供应商底细清楚。
水口验证要先行：先把水口上限和熔指公差写进验收单，再谈到货——水口，是副牌的标尺。
留样要成习惯：每批留样，物性按批次复测。批次换料先对比再放量——批次稳，客诉少。
掺假、跳批、掉级：对照一张表
| 现象 | 原因 | 对策 |
|---|
| 扯皮 | 没写单 | 写验收单 |
| 性能差 | 水口多 | 限占比 |
| 批次乱 | 不记录 | 记批次 |
| 假货 | 不实测 | 测物性 |
| 客诉 | 验收松 | 立标准 |
副牌料验收单头一行就写水口占比。占比超过约定值，直接退回，别靠“这次手感还行”放行。
副牌料必测 Shore 和熔指。硬度偏差 ±3A 以内才算稳；压变、耐温照正牌标准核，不因为便宜就降格。
副牌便宜三成，硬度漂移也大三成。省的料钱，常常刚好够赔一批析出发白的客诉。
副牌出问题，十有八九是来源杂、批次混。没有料号、没有批次号的“散装便宜货”，再低也别碰。
验收单锁死水口占比和硬度窗口，副牌料也能稳定用。正牌打样、副牌量产，价差稳稳留在成本里。
副牌验收单头一行写水口占比，超约定值直接退回。别靠手感还行放行，副牌便宜三成硬度漂移也大三成，省的料钱刚好够赔一批客诉。
副牌必测Shore和熔指，压变耐温照正牌标准核。硬度偏差±3A以内才算稳，不因为便宜就降格，没有料号批次号的散装货再低别碰。
副牌出问题十有八九是来源杂批次混
。没有料号没有批次号的散装便宜货再低也别碰，验收单锁死水口感口占比和硬度窗口，副牌也能稳定用。
验收单锁死水口感口占比和硬度窗口，副牌料也能稳定用
。正牌打样副牌量产价差稳稳留在成本里，副牌便宜三成硬度漂移也大三成省的料钱常常刚好够赔一批析出发白的客诉。
副牌料验收单头一行就写水口占比
。占比超过约定值直接退回别靠这次手感还行放行，
副牌料必测Shore和熔指硬度偏差±3A以内才算稳压变耐温照正牌标准核不因为便宜就降格。
副牌验收单头一行写水口占比超约定值直接退回
。副牌便宜三成硬度漂移也大三成省的料钱刚好够赔一批客诉，硬度偏差±3A以内才算稳压变耐温照正牌标准核。
科隆客户案例：耐磨不合格磨花快，定制牌号返工减半
苏州一家改性料应用厂，TPE 副牌件耐磨不合格，表面磨花快。科隆配合定制耐油/耐温专用牌号，耐磨提升，返工率降了一半。按工况定制，耐磨从配方提——耐磨问题，先看配方体系。
小结
TPE副牌料的验收，水口先写，批次再记，比例白纸黑字落进验收单，水口是标尺。
The proportion of secondary water mouths is all just talk, and two types arrived. The proportion is not written into the acceptance form, so if problems occur, it cannot be explained clearly.
All about talking the percentage; only received two samples.
TPE secondary grade material inspection is a 'paperwork task': sprues, batches, standards. Conclusion first: the proportion of sprues is recorded on the inspection form — sprues are the benchmark for secondary grade materials.
The biggest pitfall in TPE secondary material inspection: the sprue ratio is not written into the contract, leading to endless disputes upon arrival — the sprue is the measure for secondary material inspection.
Acceptance is a quality checkpoint: if the acceptance form is well-written, there are few disputes. If it is unclear, there will be a lot of bickering—acceptance is the protector of purchasing.
The proportion determines performance; why black on white
Water mouth material performance discount: the more it is mixed, the more the performance decreases. Proportion is a variable of performance.
The proportion of water outlets needs to be quantified: write it as a percentage. Quantification is the basis for acceptance.
Batch must be clearly written: source batch record. A batch is the traceability of acceptance.
What should be written on the acceptance form for water mouth, batch, and physical properties?
Water outlet: Write the proportion into the acceptance form. Proportion is the first item.
Batch: Source batch record. The batch is the second item.
Physical properties: measured against the table. Physical properties are the third item.
Acceptance form elements, clearly matched on one sheet
| Element | What to write | Judgment |
|---|
| Water outlet | Proportion | Mandatory |
| Batch | Source | Mandatory |
| Material properties | Data | Mandatory |
| standard | According to | Mandatory |
Table reading method: Write each element item by item, ensure there is evidence for acceptance, and list the sprue ratio and melt index tolerance.
If the list is written in full, there will be fewer disputes.
The list matches the goods received, check these four items
| Project | Requirement | Judgment |
|---|
| Water outlet | Write proportion | Meet the standard |
| Batch | traceable | Meet the standard |
| Material properties | Actual measurement | Meet the standard |
| sample retention | Archive | Meet the standard |
Table reading: inspection is carried out item by item, standards are visible, and samples from each batch are randomly tested according to proportion.
Watermarks are the measuring tool for the inspection of subsidiary brands.
Oral agreements leave no written record, and when problems arise, everyone has their own version.
Pitfall 1: Verbal agreements. You agreed on a 30% down payment, but the remaining 50% upon arrival is all based on words—percentages must be written down.
Pitfall 2: Batches are not recorded. Arguing—batches must be recorded.
Pitfall three: Unpredictable physical properties. Counterfeit goods—physical properties must be tested.
Proportion of water openings, batch, physical properties — write into the sheet
Three questions: What proportion of the water gate, which batch, what physical properties. One check: Verify the acceptance form against the actual measurements — three questions and one check, the supplier's details are clear.
Gate verification must come first: first write the gate upper limit and melt flow index tolerance into the acceptance form, then discuss delivery— the gate serves as the standard for the secondary brand.
Making sample retention a habit: retain samples for each batch, and re-test the physical properties by batch. Before switching materials between batches, compare them first before scaling up—the batch stability is maintained, and customer complaints are reduced.
Adulteration, Skipping Batches, Downgrading: Compared in a Table
| Phenomenon | Reason | Countermeasure |
|---|
| Squabble | Did not write the order | Write an acceptance form |
| Poor performance | Many water outlets | Limit proportion |
| Batch disorder | Do not record | Batch Note |
| Counterfeit goods | Not measured | Testing physical properties |
| Customer complaint | Acceptance is loose | Set standards |
For the auxiliary material inspection form, the first line should just state the proportion of the sprue. If the proportion exceeds the agreed value, return it directly; don't approve it just because 'it feels okay this time'.
Auxiliary card materials must be tested for Shore and melt index. Hardness deviation within ±3A is considered stable; compression set and temperature resistance are checked according to the standard of the main card, not downgraded just because it is cheaper.
Counterfeit cards are 30% cheaper, but their hardness also drifts by 30%. Saving on material costs often just ends up being enough to cover a batch of complaints about whitening during peeling.
If the auxiliary board has problems, nine times out of ten it’s due to mixed sources or batches. Don’t touch 'bulk cheap goods' without part numbers or batch numbers, no matter how cheap they are.
Check the acceptance form for the proportion of locked water inlets and the hardness window; secondary brand materials can also be used stably. Use the primary brand for samples and the secondary brand for mass production, keeping the price difference steadily within the cost.
In the first line of the sub-card inspection sheet, write the water mark ratio. If it exceeds the agreed value, reject it directly. Don't release it based on feel. The sub-card is 30% cheaper, and hardness deviation is also 30%, which saves just enough on material costs to cover a batch of customer complaints.
The supplementary cards must test Shore hardness and melt index, and check heat resistance according to the standard of the main cards. Only a hardness deviation within ±3A is considered stable; do not downgrade just because it is cheap. Do not touch bulk goods without part numbers and batch numbers if the grade is lower.
When accessory cards have problems, nine times out of ten it's due to mixed batches of various sources.
Don't touch cheap bulk goods without part numbers or batch numbers no matter how cheap they are. The acceptance form locks the water inlet feel, mouthfeel ratio, and hardness window, and secondary brands can also be used stably.
The acceptance form locks the water taste proportion and hardness window, and secondary brand materials can also be used stably.
The price difference between the official sample production and the mass production of the secondary brand is steadily kept within the cost. The secondary brand is 30% cheaper, but the hardness also drifts by 30%, and the money saved on materials is often just enough to cover a batch of customer complaints caused by precipitation and whitening.
The first row of the auxiliary material inspection form only records the proportion of sprue.
If the proportion exceeds the agreed value, it will be returned directly; don’t rely on the fact that it feels okay this time to let it pass.
The auxiliary card material must be tested for Shore hardness and melt flow hardness deviation within ±3A to be considered stable voltage and temperature-resistant according to the standard of the genuine card; it should not be downgraded just because it is cheaper.
For the sub-card inspection form, write in the first line that if the sprue ratio exceeds the agreed value, it will be returned directly.
. The secondary cards are 30% cheaper, and their hardness deviation also drifts by 30%. The saved material cost is just enough to cover a batch of customer complaints. A hardness deviation within ±3A is considered stable, pressure-resistant, and temperature-resistant, and it is verified according to the standard of the regular cards.
Cologne Customer Case: Wear resistance fails quickly, customized grades reduce rework by half
A modified material application factory in Suzhou found that the TPE secondary parts were not wear-resistant and the surface wore quickly. Cologne cooperated to customize a special grade that is oil-resistant and temperature-resistant, improving wear resistance and halving the rework rate. Customized according to working conditions, wear resistance is enhanced through the formulation — for wear resistance issues, first look at the formulation system.
Summary
For the acceptance of TPE auxiliary materials, first record the sprue, then note the batch. The ratio should be clearly written in black and white on the acceptance form, with the sprue serving as the scale.
